I. BOOK CHAPTERS

1. C.B. Scruby, R.J. Dewhurst, D.A. Hutchins and S.B. Palmer, “Laser Generation of Ultrasound in Metals”, in Research Techniques in Non‑Destructive Testing, Academic Press, R.S. Sharpe, ed., Vol. 5, 281‑327 (1982).

2. D.A. Hutchins, “Ultrasonic Generation by Pulsed Lasers”, in Physical Acoustics, (Academic Press, W.P. Mason and R.N. Thurston, eds.), Vol. 18, 21‑123 (1988).

3. Three journal papers (numbers 45‑47 in the list that follows) appeared in a special collection of articles, in the book “Seismicity in Mines” (S.J. Gibowicz, Ed., Birkhauser Verlag, l989).

4. D.A. Hutchins and G. Hayward, “The radiated field of ultrasonic transducers”, in Physical Acoustics, Vol. 19 (Academic Press, R.N. Thurston and A.D. Pierce, eds., 1990), 1‑80.

5. D.A. Hutchins, “Ultrasonic Sensors”, in Instrumentation and Nanotechnology (Gordon and Breach, London, J.W. Gardner and H.T. Hingle eds., 1991), 99‑118.

6. D.A. Hutchins and A. Neild, “Air-borne ultrasound transducers”, Woodhead publishers (2012);

7. C. Li, D.A. Hutchins and R.J. Green, “Ultrasonic communications in air” (in press).

 

II. REFERREED JOURNAL PAPERS

1. J.A. Archer‑Hall and D.A. Hutchins, “The photoelastic visualization of ultrasonic waves in liquids”, Ultrasonics 17, 209‑12 (1979).

2. J.A. Archer‑Hall and D.A. Hutchins, “A series approach for the determination of nearfield radiation patterns of axisymetric transducers under various conditions of baffle”, N.D.T. International 13, 151‑157 (1980).

3. C.B. Scruby, R.J. Dewhurst, D.A. Hutchins and S.B. Palmer, “Quantitative studies of thermally‑generated elastic waves in laser‑irradiated metals”, J. Appl. Phys. 51, 6210‑16 (1980).

4. D.A. Hutchins, R.J. Dewhurst and S.B. Palmer, “Estimation of liquid depth by laser generation of ultrasound”, Acoustics Letters 4, 95‑99 (1981).

5. J.A. Archer‑Hall and D.A. Hutchins, “The effectiveness of thin layers as ultrasonic visualization media”, Ultrasonics 19, 77‑80 (1981).

6. A.M. Aindow, R.J. Dewhurst, D.A. Hutchins and S.B. Palmer, “Laser‑generated ultrasonic pulses at free metal surfaces”, J. Acoust. Soc. Am. 69, 449‑455 (1981).

7. D.A. Hutchins, R.J. Dewhurst and S.B. Palmer, “Laser‑generated ultrasound at modified metal surfaces”, Ultrasonics 19, 103‑08 (1981).

8. D.A. Hutchins, R.J. Dewhurst, S.B. Palmer and C.B. Scruby, “Laser generation as a standard acoustic source in metals”, Appl. Phys. Lett. 38, 677‑79 (1981).

9. D.A. Hutchins, R.J. Dewhurst and S.B. Palmer, “Directivity patterns of laser‑generated ultrasound in aluminum”, J. Acoust. Soc. Am. 70, 1362‑69 (1981).

10. C.B. Scruby, H.N.G. Wadley, R.J. Dewhurst, D.A. Hutchins and S.B. Palmer, “A laser‑generated standard acoustic emission source”, Mat. Eval. 39, 1250‑54 (1981).

11. R.J. Dewhurst, D.A. Hutchins, S.B. Palmer and C.B. Scruby “Quantitative measurements of laser‑generated acoustic waveforms”, J. Appl.Phys. 53, 4064‑71 (1982).

12. D.A. Hutchins, H.W. Jones and L.T. Russell, “Model studies of acoustic propagation over finite impedance ground”. Acustica 52, 169‑178 (1983).

13. D.A. Hutchins, H.W. Jones and P.J. Vermulen, “The modulated ultrasonic whistle as an acoustic source for modelling”, J. Acoust. Soc. Am. 73, 110‑15 (1983).

14. R.J. Dewhurst, D.A. Hutchins, S.B. Palmer and C.B. Scruby, “The performance of thick piezoelectric transducers as wide‑band ultrasonic detectors”, Ultrasonics 21, 79‑84 (1983).

15. D.A. Hutchins and D. Pitcarn, “A laser study of multiple reflections between parallel noise barriers”, J. Acoust. Soc. Am. 73, 2216‑18 (1983).

16. D.A. Hutchins and J.A. Archer‑Hall, “Particle velocity nearfields of disc radiators with variable drive”, Acustica 53, 123‑31 (1983).

17. D.A. Hutchins, “Non contact ultrasonic transducers for NDT”, Nondest. Test. Commun. 1, 37‑52 (1983).

18. D.A. Hutchins, H.W. Jones and L.T. Russell, “Model studies of barrier performance in the presence of ground surfaces”. “Part 1: The perfectly‑reflecting barriers”, J. Acoust. Soc. Am. 75, 1807‑1816 (1984);

19. “Part 2: Different shapes”, J. Acoust. Soc. Am. 75, 1817‑1826 (1984).

20. D. A. Hutchins, H. W. Jones and L. T. Russell, “Model Studies of acoustic propagation over contoured, finite impedance ground”, Acustica 58, 234‑242 (1985).

21. D. A. Hutchins, D. E. Wilkins, and G. Luke, “Electromagnetic acoustic transducers as wideband velocity sensors”, Appl. Phys. Lett. 46, 634‑635 (1985).

22. D. A. Hutchins and J. D. Macphail, “A new design of capacitance transducer for ultrasonic displacement detection”, J. Phys. E. 18, 69‑73 (1985).

23. D. A. Hutchins, H. W. Jones, B. Paterson and L. T. Russell, “Studies of parallel barrier performance by acoustical modeling”, J. Acoust. Soc. Am. 77, 536‑546 (1985).

24. D. A. Hutchins and T. Chow, “Interference effects in transmitted field following compressional wave interaction with slots”, NDT Comm. 2, 31‑36 (1985).

25. D. A. Hutchins and D. E. Wilkins, “Polarized shear waves using laser line sources and electromagnetic acoustic transducer detection”, Appl. Phys. Lett. 47, 789‑790 (1985).

26. D. A. Hutchins and D. E. Wilkins, “Elastic waveforms using laser generation and electromagnetic acousic transducer detection”, J. Appl. Phys. 58, 2469‑2477 (1985).

27. D. A. Hutchins and J. H. Page, “Phase insensitive detection of laser generated ultrasound”, Appl. Phys. Lett. 48, 323‑325 (1986).

28. D. A. Hutchins, F. Nadeau and P. Cielo, “A pulsed photoacoustic investigation of ultrasonic mode conversion”, Can. J. Phys. 64, 1334‑1340 (1986).

29. D. A. Hutchins, “Mechanisms of pulsed photoacoustic generation”, Can. J. Phys. 64, 1247‑1264 (1986).

30. D. A. Hutchins, H. D. Mair, P. A. Puhach and A. J. Osei, “Continuous‑wave pressure fields of ultrasonic transducers”, J. Acoust. Soc. Am. 80, 1‑12 (1986).

31. D. A. Hutchins, F. Hauser and T. Goetz, “Surface waves using laser generation and electromagnetic acoustic transducer detection”, IEEE Trans. Ultrason. Ferroelect. and Freq. Contr. UFFC‑33, 478‑484 (1986).

32. D. A. Hutchins and A. C. Tam, “Pulsed photoacoustic materials characterization”, IEEE Trans. Ultrason. Ferroelect. and Freq. Contr. UFFC‑33, 429‑449 (1986).

33. D. A. Hutchins, K. Lungdren and J. Hu, “A comparison of laser and EMAT techniques for non‑contact ultrasonics”, Materials Evaluation 44, 1244‑1253 (1986).

34. R. P. Young and D. A. Hutchins, “Rockburst studies using geotomographic imaging and acoustic/microseismic emission for improved source location”, J. Acoustic Emission 5, 34‑39 (1986).

35. D. A. Hutchins, K. Lundgren, R. P. Young and N. N. Hsu, “Laser simulation of buried AE sources”, J. Acoustic Emission 5, 29‑33 (1986).

36. D. Mair, D. A. Hutchins and P. A. Puhach, “Intensity fields of continuous‑wave axisymmetric transducers”, J. Acoust. Soc. Am. 81, 328‑334 (1987).

37. D. A. Hutchins, H. D. Mair and R. G. Taylor, “Transient pressure fields of PVDF transducers”, J. Acoust. Soc. Am. 82, 183‑192 (1987).

38. R. P. Young and D. A. Hutchins, “Measuring anisotropy using laser‑generated ultrasound”, Geo. J. Royal Astronomical Soc. 91, 501‑516 (1987).

39. S. Kramer, S. L. McBride, H. D. Mair and D. A. Hutchins, “Characterization of wide‑band ultrasonic transducers using plane and edge‑wave contributions”, IEEE Trans Ultr. Ferro. Freq. Contr. UFFC‑35, 253‑263 (1988).

40. D.A. Hutchins, “Experimental study of mode conversion at slots”, Ultrasonics 26,l98‑203 (l988).

41. J. Hu, Q. L. Zhang and D. A. Hutchins,”Directional characteristics of electromagnetic acoustic transducers”, Ultrasonics 26, 5‑l3 (l988).

42. H. D. Mair, L. F. Bresse and D. A. Hutchins, “Diffraction effects of planar transducers using a numerical expression for edge waves”, J. Acoust. Soc. Am. 84, 1517‑1523 (1988).

43. L. F. Bresse and D. A. Hutchins, “Elastic constant estimation using generation by pulsed lasers”, J. Acoust. Soc. Am. 84, 1751‑1757 (1988).

44. D.A. Hutchins. J.K. Hu, R.P. Young, R. Stoner, D. Jansen and Q.L. Zhang, “Ultrasonic tomography of metals using non‑contact transduction”, J. Acoust. Soc. Am. 85, 747‑752 (l989).

45. R.P. Young, D.A. Hutchins, J. McGaughey, J. Towers, D. Jansen and M. Bostock, “Geotomographic imaging in the study of mining induced seismicity”, J. Pure and Applied Geophysics 129, 571‑596 (1989).

46. R.P. Young, S. Talebi, D.A. Hutchins and T.I. Urbanic, “Analysis of mining induced microseismic events at Strathcona Mine, Sudbury, Canada”, J. Pure and Applied Geophysics 129, 455‑474 (1989).

47. R.P. Young, D.A. Hutchins, S. Talebi, T. Chow, S. Falls, L. Farrell, D. Jansen, J. McGaughey, J. Towers and T. Urbanic, “Laboratory and field investigations of rockburst phenomena using concurrent geotomographic imaging and microseismic techniques”, J. Pure and Applied Geophysics 129, 647‑659 (1989).

48. L.F. Bresse and D.A. Hutchins, “Characteristics of a wide thermoelastic source at a solid surface”, J. Appl. Phys. 65, 1441‑1447 (1989).

49. D.A. Hutchins, L.F. Bresse and S.B. Palmer, Thick conical piezoelectric transducers”, J. Acoust. Soc. Am. 85, 2417‑2422 (1989).

50. L. F. Bresse and D. A. Hutchins, “Transient generation of elastic waves in solids by a disk‑shaped normal force source”, J. Acoust. Soc. Am. 86, 810‑817 (1989).

51. D. A. Hutchins, K. Lundgren and S. B. Palmer, “A laser study of transient Lamb waves in thin materials”, J. Acoust. Soc Amer. 85, 1441‑1448 (1989).

52. J. Hu, D. A. Hutchins, J. Ungar, Q. L. Zhang and D. K. Mak, “Non‑contact ultrasonic reflection tomography”, Materials Evaluation 47, 736‑741 (1989).

53. D.A. Hutchins, F. Hauser and L.F. Bresse, “Non‑contact ultrasonic measurements in aluminium with transducers of finite size”, Nondestructive Testing and Evaluation 5, 17‑26 (1989).

54. D.A. Hutchins and H.D. Mair, “Ultrasonic monitoring of slip‑cast ceramics”, J. Mat. Sci. Lett. 8, 1185‑1187 (1989).

55. G.S. Taylor, D.A. Hutchins, C. Edwards and S.B. Palmer, “TEA‑C02 laser generation of ultrasound in non‑metals”, Ultrasonics 28, 343‑349 (1990).

56. D.A. Hutchins, C. Saleh, M.D.C. Moles and B. Farahbahkhsh, “Ultrasonic NDE using a concentric laser/EMAT system”, J.Nondestr. Eval. 9, 247‑261 (1990).

57. D.A. Hutchins, D. Jansen, R.P. Young, C. Saleh and S. Kramer, “Imaging defects with laser ultrasound”, Nondestructure Testing and Evaluation 5, 85‑96 (1990).

58. C. Saleh and D.A. Hutchins, “Non‑contact ultrasonic thickness measurements of thin aluminum sheets”, J. Atom. Indonesia 16, 32‑42 (1990).

59. C. Saleh and D.A. Hutchins, “Non‑contact ultrasonic inspection of titanium diffusion bonds for nuclear reactor spent fuel containers “, J. Atom. Indonesia 16, 1‑15 (1990).

60. D.A. Hutchins and M.D.C. Moles, “A hybrid method for sizing radial cracks in pressure tubes”, Nondestr. Test. and Eval. 6, 25‑44 (1991).

61. D.A. Hutchins, M.D.C. Moles, G.S. Taylor and S.B. Palmer, “Non‑contact ultrasonic inspection of diffusion bonds in titanium”, Ultrasonics 29, 294‑301 (1991).

62. D.P. Jansen, D.A. Hutchins, P.J. Ungar and R.P. Young, “Acoustic tomography in solids using a bent ray SIRT algorithm”, Nondestr. Test. and Eval. 6, 131‑148 (1991).

63. D.A. Hutchins, S.B. Palmer and W.R. Sturrock, “Rayleigh to shear wave mode conversion at surface defects”, Nondestr. Test. and Eval. 6, 101‑111 (1991).

64. S. Appleton, D.A. Hutchins and M.H. Lewis, “Ultrasonic monitoring of slip casting kinetics of silicon nitride ceramic”, J. Europ. Ceram. Soc. 8, 339‑344 (1991).

65. D.A. Hutchins and R.P. Young, “Rock property assessment using laser‑generated acoustic waves”, Rev. Sci Instr. 62, 1995‑1998 (1991).

66. D.A. Hutchins and R. Mloszewski, “Ultrasonic flexural birefringence in roll‑drawn polypropylene”, J. Mat. Sci. Lett. 10, 1283‑1285 (1991).

67. R. Mloszewski, D.A. Hutchins and J. Francoeur, “Characterization of roll‑drawn polypropylene using shear wave birefringence”, J. Mat Sci. 27, 2413‑2419 (1992).

68. D.P. Jansen and D.A. Hutchins, “Rayleigh and Lamb wave immersion tomography”, Ultrasonics 30, 245‑254 (1992).

69. D.M. Anthony, E.L. Hines, D.A. Hutchins and J.T. Mottram, “Simulated ultrasound tomographic imaging of defects” in Neural Network (J.G. Taylor, ed, Springer Verlag, 1992), 41-57.

70. D.A. Hutchins, P.M. Tibbles, R.C. Staunton and R. Mloszewski, “Rapid optical determination of orientation in roll‑drawn polypropylene”, J. Mat. Sci. Lett. 11, 1449-1451 (1992).

71. D. Anthony, E.L. Hines, D.A. Hutchins and J.T. Mottram, “Ultrasound tomography imaging of composite defects using neural networks”, Neural Computation 4, 684‑697 (1992).

72. D.R. Billson and D.A. Hutchins, “Laser‑EMAT measurements of adhesively‑bonded joints”, Nondestr. Test. and Eval. 10, 43-53 (1992).

73. D.A. Hutchins, J.H. Rakels, P.M. Tibbles and R. Mloszewski, “Characterisation of roll‑drawn polypropylene using optical diffractometry”, J. Mat. Sci. 28, 789-794 (1993).

74. T. Chow, D.A. Hutchins and J.T. Mottram, “Simultaneous acoustic emission and ultrasonic tomographic imaging in anisotropic polymer composite material”, J. Acoust. Soc. Am. 94, 944-953 (1993).

75. D.A. Hutchins, L.F. Bresse and D.R. Billson, “Resonance studies of bonded aluminium joints”, Nondestr. Test. and Eval. 10, 149-165 (1993).

76. D.P. Jansen and D.A. Hutchins, “Ultrasonic tomography using scanned contact transducers”, J. Acoust. Soc. Am. 93, 3242-3249 (1993).

77. D.A. Hutchins and D.P. Jansen, “Ultrasonic tomography using non‑contact transduction”, Ultrasonics 31, 97-103 (1993).

78. T. Chow, D.A. Hutchins and M.D.C. Moles, “Acoustic emission in hydrided zirconium alloy tubes”, Nondestr. Test. and Eval. 10, 269-286 (1993).

79. D.P. Jansen and D.A. Hutchins, “Ultrasonic Rayleigh and Lamb wave tomography”, Acustica 79, 117-127 (1993).

80. T. Chow, D.A. Hutchins, M.D.C. Moles and R.P. Young, “Stress dependence of the acoustic properties of Zr‑Nb alloys”, Ultrasonics 31, 183-192 (1993).

81. D.P. Jansen, R.P. Young, S.R. Carlson and D.A. Hutchins, “Ultrasonic imaging and acoustic emission monitoring of thermally induced microcracks in Lac du Bonnet granite”, J. Geophys. Res. ‑ Solid Earth and Planets 98, 22,231-22,243 (1993).

82. D.R. Billson and D.A. Hutchins, “Development of novel piezoelectric ultrasonic transducers for couplant-free nondestructive testing”, Brit. J. NDT 35, 705-709 (1993).

83. D.P. Jansen, D.A. Hutchins and J.T. Mottram, “Lamb wave tomography of advanced composite laminates containing damage”, Ultrasonics 32, 83-90 (1994).

84. D. W. Schindel, D.A. Hutchins, S.T. Smith and B. Farahbakhsh, “High temperature pulsed photoacoustic studies of surface waves on solids”, J. Acoust. Soc. Am. 95, 2517-2524 (1994).

85. D.A. Hutchins, W.M.D. Wright and D.W. Schindel, “Ultrasonic measurements in polymeric materials using air-coupled capacitance transducers”, J. Acoust. Soc. Am. 96, 1634-1642 (1994).

86. W.M.D. Wright, D.W. Schindel and D.A. Hutchins, “Studies of laser-generated ultrasound using a micromachined silicon electrostatic transducer in air”, J. Acoust. Soc. Am. 95, 2567-2575 (1994).

87. D.A. Hutchins, W.M.D. Wright, G. Hayward and T. Gachacan “Air-coupled piezoelectric detection of laser-generated ultrasound”, IEEE Trans. Ultras. Ferr. Freq. Contr. 41, 796-807 (1994).

88. L.P. Scudder, D.A. Hutchins and J.T. Mottram, “The ultrasonic impulse response of unidirectional carbon fibre laminates”, Ultrasonics 32, 347-358 (1994).

89. D.W. Schindel, D.A. Hutchins, L. Zou and M. Sayer, “The design and characterization of micromachined air-coupled capacitance transducers”, IEEE Trans. Ultras. Ferr. Freq. Contr. 42, 42-51 (1995).

90. D.W. Schindel and D.A. Hutchins, “Applications of micromachined capacitance transducers in air-coupled ultrasonics and nondestructive evaluation”, IEEE Trans. Ultras. Ferr. Freq. Contr. 42, 52-58 (1995).

91. D.W. Schindel and D.A. Hutchins, “Through-thickness characterisation of solids by wideband air-coupled ultrasound”, Ultrasonics 33, 11-18 (1995).

92. W.M.D. Wright, D.A. Hutchins and M.H. Lewis, “Ultrasonic imaging of silicon nitride ceramic before and after firing”, J. Mat. Sci. Lett. 14, 366-369 (1995).

93. D.W. Schindel and D.A. Hutchins, “The capacitance transducer as a standard acoustic source in solids”, J. Acoust. Soc. Am. 97, 1650-1659 (1995).

94. L.P. Scudder, D.A. Hutchins and R.E. Green, “Measurement and prediction of time domain waveforms in fibre-reinforced laminates”, J. Acoust. Soc. Am. 98, 3383-3390 (1995).

95. D.A. Hutchins, A.G. Bashford, M.D.C. Moles and H.D. Mair, “Temperature dependent NDE of zirconium alloy tubing”, Insight 38, 102-107 (1996).

96. B. Hosten, D.A. Hutchins and D.W. Schindel, “Measurement of elastic constants in composite materials using air-coupled ultrasonic bulk waves”, J. Acoust. Soc. Am. 99, 2116-2123 (1996).

97. A.G. Bashford, D.A. Hutchins and D.W. Schindel, “Radiated fields of an air-coupled ultrasonic capacitance transducer”, Ultrasonics 34, 169-172 (1996).

98. W.M.D. Wright, D.A. Hutchins, G. Hayward and A. Gachagan, “Ultrasonic imaging using laser generation and piezoelectric air-coupled detection”, Ultrasonics 34, 405-409 (1996).

99. L.P. Scudder, D.A. Hutchins and NN. Guo, “Laser-generated ultrasonic guided waves in fiber-reinforced plates - theory and experiment”, IEEE Trans. Ultras. Ferr. Freq. Contr. 43, 870-880 (1996).

100. D.W. Schindel, D.A. Hutchins and W.A. Grandia, “Capacitive and piezoelectric air-coupled transducers for resonant ultrasonic inspection”, Ultrasonics 34, 621-627 (1996).

101. W.M.D. Wright, D.A. Hutchins, A. Gachagan and G. Hayward, “Polymer composite material characterisation using a laser/air-transducer system”, Ultrasonics 34, 825-833 (1996).

102. W.M.D. Wright, D.A. Hutchins, D.P. Jansen and D.W. Schindel “Air-coupled Lamb wave tomography”, IEEE Trans. Ultras. Ferr. Freq. Contr. 44, 53-59 (1997).

103. A.G. Bashford, D.W. Schindel, D.A. Hutchins and W.M.D. Wright, “Field characterisation of an air-coupled micromachined ultrasonic capacitance transducer”, J. Acoust. Soc. Am. 101, 315-322 (1997).

104. A.C. Pardoe, D.A. Hutchins, E.L. Hines and J.T. Mottram, “Neural networks applied to ultrasonic tomographic image reconstruction”, J. Neural Computing and Applications 5, 106-123 (1997).

105. D.W. Schindel, D.S. Forsyth, D.A. Hutchins and A. Fahr, “Air-coupled ultrasonic NDE of bonded aluminum lap joints”, Ultrasonics 35, 1-6 (1997).

106. D.R. Billson, D.A. Hutchins, H.D. Mair and M.D.C. Moles, “Ultrasonic evaluation of hydride concentration in zirconium-niobium alloys”, Ultrasonics 35, 241-249 (1997).

107. D.W. Schindel, A.G. Bashford and D.A. Hutchins, “Focussing of ultrasonic waves in air using a micromachined Fresnel zone plate”, Ultrasonics 35, 275-286 (1997).

108. D.W. Schindel, D.A. Hutchins and S.T. Smith, “A study of materials at high temperature using miniaturised resonant tuning forks and non-contact capacitance transducers”, J. Acoust. Soc. Am. 102, 1296-1310 (1997).

109. A.G. Bashford, D.W. Schindel and D.A. Hutchins, “Micromachined ultrasonic capacitance transducers for immersion applications”, IEEE Trans. Ultras. Ferr. Freq. Contr. 45, 367-375 (1998).

110. D.A. Hutchins, D.W. Schindel, A.G. Bashford and W.M.D. Wright, “Advances in ultrasonic electrostatic transduction”, Ultrasonics 36, 1-6 (1998).

111. A.G. Bashford and D.A. Hutchins, “Non-destructive evaluation of green-state ceramics using micromachined air-coupled capacitance transducers”, Ultrasonics 36, 121-126 (1998).

112. A.G. Bashford and D.A. Hutchins, “Air-coupled ultrasonic transducers for measurement of green-state ceramics at elevated temperatures”, IEE Proceedings - Science, Measurement and Technology 145, 237-243 (1998).

113. W.M.D. Wright, D.W. Schindel, D.P. Jansen, D.A. Hutchins and P.W. Carpenter, “Air-coupled tomography of temperature and flow fields”, J. Acoust. Soc. Am. 104, 3446-3455 (1998).

114. W.M.D. Wright and D.A. Hutchins, “Air-coupled ultrasonic testing of metals using broadband pulses in through-transmission”, Ultrasonics 37, 19-22 (1999).

115. C.S. McIntyre, D.A. Hutchins D.R. Billson and C. Gregory, “Gas-coupled ultrasonic capacitance transducers at high pressure”, Insight 41, 80-87 (1999).

116. D.W. Schindel, A.G. Bashford and D.A. Hutchins, “Chromatic aberration of an air-coupled ultrasonic Fresnel zone-plate”, IEEE Trans. Ultras. Ferr. Freq. Contr. 46, 242-246 (1999).

117. W.M.D. Wright and D.A. Hutchins, “Monitoring of binder removal from injection-moulded ceramics using air-coupled ultrasound at high temperature”, IEEE Trans. Ultras. Ferr. Freq. Contr. 46, 647-653{1999).

118. D.A. Hutchins, A.C. Pardoe, D.R. Billson and E.L. Hines, “Neural network correction of ultrasonic C-scan images”, Ultrasonics 37, 263-272 (1999).

119. T.H. Gan, D.A. Hutchins, D.R. Billson and D.W. Schindel, “The use of broadband acoustic transducers and pulse compression techniques for air-coupled ultrasonic imaging”, Ultrasonics 39, 181-194 (2001).

120. C.S. McIntyre, D.A. Hutchins, D.R. Billson and J. Storr-Pelinen, “The use of air-coupled ultrasound to test paper”, IEEE Trans. Ultras. Ferr. Freq. Contr. 48, 717-727 (2001).

121. C.S. McIntyre, D.A. Hutchins and D.R. Billson, “Development of a novel ribbon-based air-coupled ultrasonic transducer”, IEE Proc. – Sci. Meas. Tech. 148, 237-245 (2001).

122. R.A. Noble, A.R.D. Jones, T.J. Robertson, D.A. Hutchins and D.R. Billson, “Novel wide bandwidth micromachined ultrasonic transducers”, IEEE Trans. Ultras. Ferr. Freq. Contr. 48, 1495-1507 (2001).

123. D.A. Hutchins, C.S. McIntyre, D.R. Billson, D.-W. Choi and T.J. Robertson, “Ultrasonic propagation in a gas jet”, J. Acoust. Soc. Am. 110, 2964-2973 (2001).

124. T.H. Gan, D.A. Hutchins, D.R. Billson and F.C. Wong, “Ultrasonic tomographic imaging of an encased highly-attenuating solid media”, Research in Nondestructive Evaluation 13, 131-152 (2001).

125. T.J. Robertson, D.A. Hutchins and D.R. Billson “Capacitive air-coupled cylindrical transducers for ultrasonic imaging applications”, Measurement Science and Technology 13, No. 5, 758-769 (2002).

126. T.J. Robertson, D.A. Hutchins, D.R. Billson and J.H. Rakels, “Surface metrology using reflected ultrasonic signals in air”, Ultrasonics 39, No.7, 479-486 (2002).

127. J.S. McIntosh, D.A. Hutchins, D.R. Billson, T.J. Robertson, R.A. Noble and A.D.R. Jones, “The characterisation of capacitive micromachined ultrasonic transducers in air”, Ultrasonics 40, 477-483 (2002).

128. D.W. Choi, D.A. Hutchins and D.R. Billson, “Gas jet as a waveguide for air-coupled ultrasonics”, Ultrasonics 40, 145-151 (2002).

129. T.H. Gan, D.A. Hutchins, D.R. Billson “Air-coupled ultrasonic inspection of food containers”, J. Food Eng. 53, 315-312 (2002).

130. D.A. Hutchins, T.J. Robertson, D.R. Billson and P. Solanki. “A conical air-coupled capacitance transducer for surface imaging”, Ultrasonics 41, 163-173 (2003).

131. D.W. Choi and D.A. Hutchins, “Ultrasonic propagation in various gases at elevated pressures”, Measurement Science and Technology 14, 822-830 (2003).

132. T.H. Gan, D.A. Hutchins, P.W. Carpenter and W.M.D. Wright, “Simultaneous reconstruction of flow and temperature cross-sections in gas jets using acoustic tomography”, J. Acoust. Soc. Am. 114, 759-766 (2003).

133. D.A. Hutchins, J.S. McIntosh, A. Neild, D.R. Billson and R.A. Noble, “Radiated fields of capacitive micromachined ultrasonic transducers in air”, J. Acoust. Soc. Am. 114, 1435-1449 (2003).

134. T.H. Gan and D.A. Hutchins, “Air-coupled ultrasonic tomographic imaging of high temperature flames”, IEEE Trans. Ultras. Ferr. Freq. Contr. 50, 1214-1218 (2003).

135. T.H. Gan, D.A. Hutchins, D.R. Billson and D.W. Schindel, “High resolution air-coupled imaging of thin materials”, IEEE Trans. Ultras. Ferr. Freq. Contr. 50, 1516-1524 (2003).

136. D.W. Choi, D.A. Hutchins and D.R. Billson, “Gas jets as ultrasonic waveguides”, J. Acoust. Soc. Am. 114, 1254-1265 (2003).

137. D.A. Hutchins, D.W. Choi, L.A.J. Davis, T.H. Gan and D.R. Billson, “Through-transmission imaging of solids in air using ultrasonic gas-jet waveguides”, IEEE Trans. Ultras. Ferr. Freq. Contr. 50, 1509-1515 (2003).

138. A Neild and D.A. Hutchins, “A theoretical model for the effect of a finite size acoustic receiver”, J. Acoust. Soc. Am. 115, 1546-1556 (2004).

139. A. Neild and D.A. Hutchins, “The calculation of radiated acoustic pressure fields from irregular multi-sided polygons”, J. Acoust. Soc. Am. 115, 2021-2031 (2004).

140. P. Purnell, T.H. Gan, D.A. Hutchins and J. Berriman, “Non-contact Ultrasonic Diagnostics in Concrete: A preliminary investigation”, Cement and Concrete Research 34, 1185-1188 (2004).

141. A. Neild, D.A. Hutchins, T.J. Robertson and D.R. Billson, “Imaging using air-coupled polymer-membrane capacitive ultrasonic arrays”, Ultrasonics 42, 859-864 (2004).

142. J.S. McIntosh, A. Neild, D.A. Hutchins, D.R.Billson, R.A. Noble and R.R. Davies, “Nearfield Modelling of Small Arrays of Capacitive Micromachined Ultrasonics Transducers (cMUTs)”, Ultrasonics 42, 447-452 (2004).

143. T.H. Gan, D.A. Hutchins and R.J. Green, “A Swept Frequency Multiplication Technique for Air-Coupled Ultrasonic NDE, IEEE Trans. Ultras. Ferr. Freq. Contr. 51, 1271-1279 (2004).

144. A Neild, DA Hutchins, TJ Robertson and DW Schindel, “A model for the radiated fields of a plane piston after reflection from a curved surface”, J. Acoust. Soc. Am. 116, 2793-2801 (2004).

145. P. Purnell, D.A. Hutchins, J. R. Berriman and T.H. Gan, "Testing without touching: advances in ultrasonic concrete interrogation", Concrete 138, 10-11, (2004)

146. A. Neild, D.A. Hutchins, T.J. Robertson, L.A.J. Davis and D.R. Billson, “The radiated fields of focussing air-coupled ultrasonic phased arrays”, Ultrasonics 43, 183-195 (2005).

147. T.H. Gan, D.A. Hutchins, R.J. Green, M. Andrews and P.D Harris, “Non-contact high-resolution ultrasonic imaging of wood samples using coded chirp waveforms”, IEEE Trans. Ultras. Ferr. Freq. Contr. 52, 280-288 (2005).

148. L.A.J. Davis, D. R. Billson, D.A. Hutchins and R.A. Noble, “Visualising acoustic displacements of micromachined transducers using an interferometric microscope”, Acoustics Research Letters On-line (ARLO) 6, 75-79 (April 2005).

149. K.S. Ho, T.H. Gan, D.R. Billson and D.A. Hutchins, “Application of pulse compression signal processing techniques to electromagnetic acoustic transducers for non-contact thickness measurements and imaging”, Review of Scientific Instruments 76, paper 054902-1-8. (2005).

150. A. P. Medley, D. R. Billson, D. A. Hutchins and L.A.J. Davis "Properties of an electrostatic transducer", J. Acoust. Soc. Am 120, 2658-2667 (2006).

151. T.H. Gan, P. Pallav and D.A. Hutchins, “Non-contact ultrasonic quality measurements of food products”, J. Food Engineering 77, 239-247 (2006).

152. S. Meyer, S. A. Hindle, J.-P. Sandoz, T. H. Gan and D. A. Hutchins, “Non-contact evaluation of milk-based products using air-coupled ultrasound”, Meas. Sci. Technol. 17, 1838-1846 (2006).

153. G.G. Diamond, D.A. Hutchins, T.H. Gan, P. Purnell and K.K. Leong, “Single-sided capacitive imaging for NDT”, Insight 48, 724-730 (2006).

154. J.R. Berriman, D.A. Hutchins, A. Neild, T.H. Gan and P. Purnell, “The application of time-frequency analysis to the air-coupled ultrasonic testing of concrete”, IEEE Trans. Ultras. Ferr. Freq. Contr. 53, 768-776 (2006).

155. K.S. Ho, D.R. Billson and D.A. Hutchins, “Inspection of drinks cans using non-contact electromagnetic acoustic transducers”, J. Food Engineering 80, 431-444 (2007).

156. L.A.J. Davis, D. A. Hutchins and R.A. Noble, “Characterisation of cMUTs in rarefied gases”, IEEE Trans. Ultras. Ferr. Freq. Contr. 54, 1065-1071 (2007).

157. P. Pallav, T.H. Gan and D.A. Hutchins, “Elliptical-Tukey chirp signal for high resolution air-coupled ultrasonic imaging”, IEEE Trans. Ultras. Ferr. Freq. Contr. 54, 1530-1540 (2007).

158. K.S. Ho, D.R. Billson and D.A. Hutchins, “Ultrasonic Lamb wave tomography using scanned EMATs and wavelet processing”, Nondestructive testing and Evaluation 22, 19-34 (2007).

159. A. P. Medley, D. R. Billson, D. A. Hutchins, and A. Neild, “Acoustic fields of non-planar radiators”, J. Acoust. Soc. Am 122, 2587-93 (2007).

160. K.S. Ho, R.J. Bradley, D.R. Billson and D.A. Hutchins “Micro- stereolithography as a transducer design method”, Ultrasonics. 48, 1-5 (2008).

161. P. Pallav, G.G. Diamond, D.A. Hutchins and T. H. Gan, “A near infrared technique for nondestructive evaluation”, Insight 50, 244-248 (2008).

162. C. Li, D.A. Hutchins and R.J. Green, “Short-range ultrasonic digital communications in air”, IEEE Trans. Ultras. Ferr. Freq. Contr. 55, 908-918 (2008). 10.1109/TUFFC.2008.726

163. P. Pallav, D.A. Hutchins and T.H Gan, “Air-coupled ultrasonic evaluation of food materials, Ultrasonics 49, 244-253 (2009).

164. P. Pallav, D.A. Hutchins and X. Yin, “Air-coupled ultrasonic spectroscopy of highly damping materials using pulse compression”, IEEE Trans. Ultras. Ferr. Freq. Contr. 56, 1207-1217 (2009). 10.1109/TUFFC.2009.1162

165. P. Pallav, G.G. Diamond and D.A. Hutchins, R.J. Green and T.H. Gan, “A near infrared (NIR) technique for imaging food materials”, J. Food Sci. 74, E23-E33 (2009).

166. C.Li, D.A. Hutchins and R.J. Green, “Short range ultrasonic communications in air using quadrature modulation”, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control 56, 2060-2072 (2009). Digital Object Identifier 10.1109/TUFFC.2009.1289

167. X. Yin, G.G. Diamond and D.A. Hutchins, “Further investigations into capacitive imaging for NDE”, Insight 51, 484-490 (2009).

168. X. Yin, D.A. Hutchins and G.G. Diamond and P. Purnell, “Non-destructive evaluation of concrete using a capacitive imaging technique: preliminary modelling and experiments”, Cement and Concrete Research 40,1734-1743 (2010). doi:10.1016/j.cemconres.2010.08.015

169. C. M. Canal, A. Saleem, R.J. Green and D.A. Hutchins, "Near-infrared spectroscopy for personal screening", Proc. SPIE 7838, 78380G (2010); doi:10.1117/12.865831

170. C.M. Canal, A. Saleem, R.J. Green and D.A. Hutchins, “Remote identification of chemicals concealed behind clothing using near infrared spectroscopy”, Analytical Methods. 3, 84-91 (2011).

171. A. Saleem, C. Canal, D.A. Hutchins and R.J. Green, “Techniques for quantifying chemicals concealed behind clothing using near infrared spectroscopy”, Anal. Methods 3, 2298 - 2306 (2011).

172. D. Cheneler, J. Bowen, S.J. Leigh, C.P. Purssell, D.R. Billson, D.A. Hutchins, M.C.L. Ward, “Fabrication and analysis of cylindrical resin AFM microcantilevers”, Ultramicroscopy 111, 1214-1223 (2011). DOI:10.1016/j.ultramic.2011.03.009.

173. S.J. Leigh, C.P Purssell, J. Bowen, D.A. Hutchins, J. A Covington, D.R. Billson, A miniature flow sensor fabricated by micro-stereolithography employing a magnetite/acrylic nanocomposite resin., Sensors and Actuators A: Physical 168, 66-71 (2011).

DOI: 10.1016/j.sna.2011.03.058.

174. D.A. Hutchins, D.R. Billson, R.J. Bradley and K.S.Ho, “Structural health monitoring using polymer-based capacitive micromachined ultrasonic transducers (CMUTs)”. Ultrasonics Vol.51 (No.8), 870-877 (2011).

175. X. Yin and D. A. Hutchins, “Non-destructive evaluation of composite materials using a capacitive imaging technique”, Composites: Part B 43, 1282–1292 (2012). doi:10.1016/j.compositesb.2011.10.018

176. C. Li, D. A. Hutchins and R. J. Green, “Response of an Ultrasonic Communication Channel in Air” IET Communications (2012). doi: 10.1049/iet-com.2010.0916

 

III. CONFERENCE PAPERS

The list below are papers delivered at conferences, and published in the conference proceedings. Invited papers are anotated as such. A few selected unpublished papers that have been delivered at other conferences are also included.

l. J.A. Archer‑Hall and D.A. Hutchins, “The visualization of ultrasonic waves in liquids by stroboscopic photoelasticity”, Proc. Ultras. Int. '79 Conf., Gratz, Austria, 103‑106 (1979).

2. A.M. Aindow, R.J. Dewhurst, D.A. Hutchins and S.B. Palmer, “The efficient production of acoustic pulses at free metal surfaces by Q‑switched lasers”, Proc. 4th Nat. Quant. Elec. Conf., Edinburgh, UK, 255‑58 (1979).

3. A.M. Aindow, R.J. Dewhurst, D.A. Hutchins and S.B. Palmer, “The laser generation of surface elastic waves at free metal surfaces”, Proc. Acoustics '80 Conf., Inst. of Acoust., London, UK, 277‑80 (1980).

4. D.A. Hutchins, R.J. Dewhurst and S.B. Palmer, “Laser generation of longitudinal and shear pulses in metals”, Proc. Acoustics '80 Conf., Inst. of Acoust., London, UK, 281‑85 (1980).

5. A.M. Aindow, R.J. Dewhurst, D.A. Hutchins and S.B. Palmer, “Characteristics of a laser‑generated acoustic source in metals”, European Conference on Optical Systems and Applications, Utrecht, Netherlands, SPIE, Vol. 236, 478‑85 (1980).

6. D.A. Hutchins, R.J. Dewhurst, S.B. Palmer and C.B. Scruby, “Laser‑generated ultrasonic waveforms in metals”, Proc. 101st Meeting Acoust Soc. Amer., in J. Acoust. Soc. Amer., Suppl. l, Vol. 69, S90 (1981).

7. D.A. Hutchins, R.J. Dewhurst and S.B. Palmer, “Mechanisms of laser generated ultrasound by directivity‑pattern measurements”, Proc. Ultras. Int. '81 Conf., Brighton, UK, 20‑25 (1981).

8. C.B. Scruby, R.J. Dewhurst, D.A. Hutchins and S.B. Palmer, Quantitative studies of laser‑generated acoustic waveforms”, Proc. Ultras. Int. '81 Conf., Brighton, UK, 129‑34 (1981).

9. H.W. Jones and D.A. Hutchins, “Sound propagation in free field and in the presence of ground”, Proc. Internoise '81 Conference, Amsterdam, Netherlands, 225‑28 (1981) (Invited).

10. D.A. Hutchins, R.J. Dewhurst, S.B. Palmer and C.B. Scruby, “Some applications of laser generated ultrasound in metals”, Proc. 1981 IEEE Ultrasonics Symposium, Chicago, USA, 798‑801.

11. D.A. Hutchins and J.A. Archer‑Hall, “Particle velocity and displacement patterns of disc transducers with amplitude shading”, Proc. Acoustical Imaging '82 Conference, Plenum Press, NY, 327‑38 (1982).

12. D.A. Hutchins, H.W. Jones and L.T. Russell, “Scale model studies of noise propagation over finite impedance ground”, Proc. Internoise '82 Conference, San Francisco, USA, 807‑10 (1982) (Invited).

13. D.A. Hutchins, “Non‑contact ultrasonics using lasers”, Proc. Conf. Advanced NDE Technology, Montreal, NRC, 125‑34 (1982) (Invited).

14. D.A. Hutchins and F. Nadeau, 1983, “Non‑contact ultrasonic waveforms in metals using laser generation and interferometric detection”, Proc. 1983 IEEE Ultrasonics Symposium, Atlanta, USA, 1175‑77.

15. D.A. Hutchins, H.W. Jones and L.T. Russell, “Scale model studies of single barrier performance in the presence of finite impedance ground” Proc. 11th ICA, Paris, Vol. 1, 145‑489 (1983).

16. D.A. Hutchins, “Field structures of disc transducers with specialized electrode configurations”, Proc. Ultrasonics International '83 Conf., Halifax, Canada, 307‑312 (1983).

17. D.A. Hutchins, H.W. Jones and L.T. Russell, “Scale model studies of highway noise barrier insertion losses”, Proc. Internoise '83 Conf., San Francisco, USA (1983) (Invited).

18. F. Nadeau and D. A. Hutchins, “A study of the interaction of surface waves with slots using non‑contact laser generation and Detection of Ultrasound”, Proc. 1984 IEEE Ultrasonics Symp., 921‑925.

19. D. A. Hutchins and H. W. Jones, “Parallel barriers in the presence of ground surfaces”, Proc. Internoise '84 Conf., 319‑324 (Invited).

20. D. A. Hutchins, “Non‑contact methods for the ultrasonic inspection of steel”, Rep. Steel Industry/Researcher Sensor Research Workshop, (CSIRA, Ontario), 29‑31 (1984) (Invited).

21. D. A. Hutchins and D. E. Wilkins, “Ultrasonic waveforms in metal plates using laser generation and EMAT detection”, Proc. 14th Int. Symp. on Acoustical Imaging”, in Acoustical Imaging, Vol. 14, (Plenum Press, New york), 367‑376 (1985).

22. D. A. Hutchins and D. E. Wilkins, “Wideband electromagnetic acoustic transducers as velocity sensors”, Proc. Ultrason. Int. '85 Conf. (London, U.K., July 1985), 382‑386.

23. D. A. Hutchins and H. D. Mair, “High resolution experimental study of PZT transducer fields”, Proc. Ultrason. Int. '85 Conf. (London, U.K., July 1985), 632‑637.

24. D. A. Hutchins, “Photoacoustic ultrasonic generation”, Digest of 4th Int. Topical Meeting on Photoacoustic, Photothermal and Related Sciences” (L'Esterel, Canada, Aug. 1985), paper WC1 (Invited).

25. D. A. Hutchins, F. Nadeau and P. Cielo, “ A photoacoustic investigation of shear wave to Rayleigh wave mode conversion at slots”, Digest of 4th Int. Topical Meeting on Photoacoustic, Photothermal and Related Sciences” (L'Esterel, Canada, Aug. 1985), paper WC8.

26. D. A. Hutchins, R. P. Young and J. Ungar, “Laser‑generated ultrasonic waves for the investigation of porous solids”, in 'Ultrasonic Methods in Evaluation of Inhomogenous Materials', NATO ASI Series E: Applied Sciences ‑ No. 126 (Martinus Nijhoff, 1987).

27. D. A. Hutchins and H. D. Mair, “Experimental and theoretical comparison of ultrasonic transducer fields”, Proc. 1985 IEEE Ultras. Symp. (San Francisco, U.S.A., Oct. 1985), pp. 688‑691.

28. H. D. Mair and D. A. Hutchins, “Axial focusing by phased concentric annuli”, Proc. Int. Conf. Underwater Acoust. (Halifax, Canada,July 1986), In Progress in Underwater Acoustics (Plenum, NY, 1986), pp. 619‑626.

29. D. A. Hutchins and H. D. Mair, “Pulsed PVDF transducer fields‑comparison of theory and experiment”, Proc. 15th Int. Symp. on Acoust. Imaging (Halifax, Canada, July 1986), published in Acoustical Imaging, Vol.15 (Plenum, NY, 1986), pp. 127‑134.

30. H. D. Mair and D. A. Hutchins, “Intensity fields of ultrasonic transducers”, Proc. 12th Int. Congress on Acoust. (Toronto, Canada, July 1986), paper G4‑3.

31. D. A. Hutchins and J. Hu, “Directivity patterns of electromagnetic acoustic transducers”, Proc. 12th Int. Congress on Acoust. (Toronto, Canada, July 1986), paper L2‑2.

32. D. A. Hutchins and K. Lundgren, “Optical generation and detection of ultrasonic pulses in solids”, Proc. 3rd Spring School on Acoustooptics (Gdansk, Poland, 1986), pp. 22‑33 (Invited).

33. D. A. Hutchins, “Laser/EMAT systems for the ultrasonic inspection of aluminum”, Proc 2nd Int. Symp. on Nondestructive Characterisation of materials, Montreal, Canada (Plenum, NY, 1986), pp.725‑732.

34. D. A. Hutchins and K. Lundgren, “A laser study of Rayleigh to bulk mode conversion at surface defects”, Proc. 1986 IEEE Ultrasonics Symp. (Williamsburg, USA, 1986), pp. 535‑538.

35. D. A. Hutchins and K. Lundgren, “Quantitative studies of Lamb waves in thin materials using laser techniques”, Proc. at 1987 Review of Progress in Quantitative NDE (Williamsburg, USA, 1987) Vol. 7A, 79‑84 (Invited).

36. L. F. Bresse, D. A. Hutchins and K. Lundgren, “Elastic constant determination using ultrasonic generation by pulsed lasers”, Proc. 1987 Review of Progress in Quantitative NDE (Williamsburg, USA, 1987), Vol. 7B, 1219‑1226.

37. L. F. Bresse and D. A. Hutchins, “Transient acoustic radiation fields in solids from wide sources”, Proc. 1987 Review of Progress in quantitative NDE (Williamsburg, USA, 1987), Vol. 7A, 629‑638.

38. R. P. Young, D. A. Hutchins, W. J. McGaughey, T. Urbanic, S. Falls and J. Towers, “Concurrent seismic tomographic imaging and acoustic emission techniques: a new approach to rockburst investigations”, Proc. 6th ISRM Int. Congress on Rock Mechanics, Montreal, Canada (1987).

39. D. A. Hutchins and F. Hauser, “Experimental studies into ultrasonic mode conversion”, Proc. Ultrasonics International '87 Conf. (London, UK, July 1987), 561‑565.

40. D. A. Hutchins, J. K. Hu and D. K. Mak, “EMAT ultrasonic reflection tomography”, Proc. Ultrasonics International '87 Conf. (London, UK, July 1987), 860‑864.

41. D. A. Hutchins, “Laser generation of ultrasound”, Proc. Ultrasonics International '87 Conf. (London, UK, July 1987), 135‑140 (Invited).

42. S. M. Kramer, D. A. Hutchins and H. D. Mair, “Use of plane and edge wave contributions to characterize PVDF transducers”, Proc. Ultrasonics International '87 Conf. (London, UK, July 1987), 838‑843.

43. H.D. Mair, L.F. Bresse and D.A. Hutchins, “A study of diffraction effects of planar transducers using a numerical expression for edge waves”, Proc. 1987 IEEE Ultrasonics Symposium (Denver, USA, Oct. 1987), 771‑774.

44. D. A. Hutchins, R. P. Young R. Stoner, D. Jansen, J. K. Hu and Q. L. Zhang, “Non‑contact ultrasonic reflection tomography”, Proc. 1987 IEEE Ultrasonics Symposium (Denver, USA, Oct. 1987), 1037‑1039.

45. D. A. Hutchins, S. B. Palmer and L. F. Bresse, “Thick conical piezoelectric transducers for NDE”, Proc. 1987 IEEE Ultrasonics Symposium (Denver, USA, Oct. 1987), 685‑688.

46. J, Hu, Q. Zhang, D.A. Hutchins and D. Jansen, “Laser‑ultrasonic tomography ofmetals”, Proc. Western Pacific Accoust. Conf. (WESTPA III, Shanghai, China, Nov. l988), Vol. 1, pp. 179‑182.

47. D.A. Hutchins, R.P. Young and D. Jansen, “Acoustic tomography using sparse data and irregular geometries”, Proc. Acoustical Imaging '88 Conference (Sendai, Japan, July l988), published in Acoustical Imaging, Vol. 17 (Plenum Press, NY, 1989), pp. 689-692.

48. L.F. Bresse, D.A. Hutchins and B. Farahbakhsh, “Ultrasonic characterization of aluminium/epoxy composite materials”, Proc. 3rd Int. Conf. Nondestr. Charact. of Materials (Sarrbruken, Germany, October 1988).

49. B. Farahbakhsh, D. Jarman, G. Burger, A. Gessing, D. Hutchins and H.D. Mair, “Ultrasonic real‑time monitoring of slip cast cake thickness”, presented at Fall meeting of MRS (Symposium U‑Nondest ‑ Monitoring of Mat. Props, Boston, U.S.A., Nov l988). Published in Nondestructive Monitoring of Material Properties, MRS Symposia Proceedings Vol. 142, pp. 303‑307.

50. R.P. Young, D.A. Hutchins and W.J. McGaughey, “Seismic imaging ahead of mining in rockburst‑prone ground”, Proc. 2nd Int. Symp. on Rockbursts and Seismicity in Mines (Minnesota, U.S.A., 1988), pp. 357‑366.

51. R.P. Young, D.A. Hutchins, M. Bostock and P. Mottahed (1987), “Geotomographic imaging of collapse/solution structures in potash mines using seismic methods”, Proc. 28th US Rock Mechanics Symposium pp. 19‑27.

52. R.P. Young, D.A. Hutchins, W.J. McGaughey, T. Urbancic, S. Falls and J. Towers (1987), “Concurrent seismic tomographic imaging and acoustic emission techniques: A new approach to rock burst investigations”, Proc. 6th I.S.R.M. Int. Congress on Rock Mechanics, Montreal, Canada, (A.A. Balkema, Rotterdam) pp. 1333‑1338.

53. S.C. Maxwell, R.P. Young and D.A. Hutchins, “Simultaneous velocity tomography and source location of synthetic acoustic emission data”, Proc. World Meeting on Acoustic Emission, (Charlotte, N. Carolina, USA March l989) and special issue of the Journal of Acoustic Emission (in press).

54. W.J. McGaughey, R.P. Young and D.A. Hutchins, “Geotechnical mapping by seismic imaging in underground mines”, Proc. 30th US Symposium on Rock Mechanics (Morgantown, W. Virginia, June 18‑20 1989).

55. S.D. Falls, T. Chow, R.P. Young and D.A. Hutchins, “Acoustic Emission analysis and tomographic velocity imaging in the study of failure in Brazilian disc tests”, Proc. 30th US Symposium on Rock Mechanics (Morgantown, W. Virginia, June 18‑20 1989).

56. D.A. Hutchins, D. Jansen, R.P. Young, C. Saleh and S. Kramer, “Imaging defects with laser ultrasound”, Proc. IOP Meeting on noncontacting ultrasonic techniques and applications(Warwick, March l989), published in Nondestructive Testing and Evaluation 5, 85‑96 (1990).

57. D.A. Hutchins and L.F. Bresse, “The field of finite‑sized ultrasonic transducers in a solid”, Digest IEE Colloqu. on Advances in Ultrasonic Transducers and Arrays (IEE, London, April l989), Digest No. l989/56, pp. iii/l ‑ iii/3.

58. S.D. Falls, T. Chow, R.P. Young and D.A. Hutchins, “Acoustic emission analysis and ultrasonic velocity imaging in the study of rock failure”, Proc. World Meeting on Acoustic Emission (Charlotte, N. Carolina, USA, March l989), published in Acoustic Emission: Current Practice and Future Direction, ASTM STP 1077, W Sachse, J. Roget and K. Yamaguchi, Eds.(1991).

59. D.A. Hutchins, M.D.C. Moles and H.D. Mair, “A hybrid ultrasonic system for crack depth estimation in tubes”, Proc. Ultrasonics International '89 Conference (Madrid, Spain, July l989), pp. 90‑94.

60. L.F. Bresse, D.A. Hutchins, F. Hauser and B. Farahbahksh, “Ultrasonic NDE of layered composites using pulsed lasers”, in Review of Progress in Quantitative NDE, Vol. 8A (D.O. Thompson and D.E. Chimenti, Eds, Plenum Press, N.Y., l989), pp. 527‑534.

61. D.P. Jansen, T. Chow, S.D. Falls, D.A. Hutchins and R.P. Young, “Ultrasonic difference tomography”, Proc. Ultrasonics International '89 Conference (Madrid, Spain, July 1989), pp. 1110‑1114.

62. D.W. Schindel and D.A. Hutchins, “A wideband capacitance transducer source”, Proc. Ultrasonics International '89 Conference (Madrid, Spain, July 1989), pp. 589‑593.

63. D.A. Hutchins, S.M. Kramer and C. Saleh, “SAFT processing of non‑contact ultrasonic NDE data”, Proc. 1989 IEEE Ultrasonics Symposium (Montreal, Canada, Oct. 1989), pp. 66l‑664.

64. G.S. Taylor, D.A. Hutchins, S.B. Palmer and M.D.C. Moles, “Non‑contact ultrasonic inspection of diffusion bonds in titanium”, Proc. 1989 IEEE Ultrasonics Symposium (Montreal, Canada, Oct. 1989), pp. 1113‑1115.

65. H.D. Mair and D.A. Hutchins, “Harmonic generation in the fields of disc radiators”, Proc. 1989 IEEE Ultrasonics Symposium (Montreal, Canada, Oct. 1989), pp. 1207‑1210.

66. R. Mloszewski, D.A. Hutchins and J. Francoeur, “Ultrasonic characterization of oriented roll‑drawn polypropylene using shear wave birefringence”, Proc. Conf. New Materials and their Applications (Warwick, April 1990), Institute of Physics Conference Series No. 111, pp. 67‑72.

67. D.P. Jansen and D.A. Hutchins, “Rayleigh wave tomography”, Proc. International Symposium on Physical Acoustics: Pure and Applied (Kortrijk, Belgium, June 1990), in “Physical Acoustics, Fundamentals and Applications, Plenum Press, New York, 1991), pp. 381‑384.

68. D.P. Jansen, D.A. Hutchins and R.P. Young, “Ultrasonic tomography using scanned contact transducers”, Proc. 1990 IEEE Ultrasonics Symp., pp. 871‑874.

69. D.P. Jansen and D.A. Hutchins, “Lamb wave tomography”, Proc. 1990 IEEE Ultrasonics Symp. (Hawaii, Dec. 1990), pp. 1017‑1020.

70. D.W. Schindel, D.A. Hutchins, B. Farahbakhsh ans S.T. Smith, “High temperature pulsed photoacoustic studies of solids”, Proc. 1990 IEEE Ultrasonics Symp. (Hawaii, Dec.1990), pp. 645‑648.

71. T. Chow, D.A. Hutchins, S.D. Falls and R.P. Young, “Ultrasonic attenuation tomography in disks under load”, Proc. 1990 IEEE Ultrasonics Symp. (Hawaii, Dec. 1990), pp. 1241‑1244.

72. D.A. Hutchins, S. Appleton, H.D. Mair and M.H. Lewis, “Ultrasonic monitoring of slip‑cast ceramics”, Proc. Acoustics '91 Conference (Keele, UK, 1991), published in Proc. Inst. Acoust 13, pp. 87‑94.

73. D.P. Jansen, T. Chow, D.A. Hutchins and R.P. Young, “Ultrasonic tomographic imaging of anisotropic solids”, Proc. 19th Int. Symp. Acoustical Imaging (Bochum, Germany, April 1991), in Acoustical Imaging, Vol. 19 (Plenum Press, New York), pp. 59‑63.

74. D.A. Hutchins and G. Hayward, “Air‑coupled piezoelectric detection of laser generated ultrasound”, Proc. Ultrasonics International '91 Conference (Le Touquet, France, 1991), pp. 359‑362.

75. L.P. Scudder and D.A. Hutchins, “Propagation of laser‑generated broadband ultrasonic waves in thin composite materials”, Proc. Ultrasonics International '91 Conference (Le Touquet, France, 1991), pp. 575‑578.

76. D.R. Billson and D.A. Hutchins, “Ultrasonic testing of adhesively bonded layers using shear waves”, Proc. Ultrasonics International '91 Conference (Le Touquet, France, 1991,), pp. 447‑450.

77. D.A. Hutchins, “Pulsed lasers for quantitative ultrasonic NDE”, Proc. 1991 Review of Progress in Quantitative NDE Conf. (Maine, USA, 1991) pp. 561‑568 (Invited Keynote Address).

78. T. Chow, D.A. Hutchins and J.T. Mottram, “Acoustic emissions and ultrasonic tomography in pultruded GRP”, Proc. 1991 IEEE Ultrasonics Symp. (Florida, USA, 1991), pp. 1053‑1056.

79. D. Schindel and D.A. Hutchins, “Capacitance devices for the controlled generation of ultrasonic waves in liquids”, Proc. 1991 IEEE Ultrasonics Symp. (Florida, USA, 1991), pp. 301‑304.

80. D.P. Jansen and D.A. Hutchins, “Acoustic imaging of thermally fractured rock”, Proc. 1991 IEEE Ultrasonics Symp. (Florida, USA, 1991), pp. 695‑698.

81. D.A. Hutchins, D. Schindel, M.D.C. Moles and H.D. Mair, “Laser‑based high temperature ultrasonic studies of hydrided zirconium alloys” Proc. 1991 IEEE Ultrasonics Symp. (Florida, USA, 1991), pp. 907‑910.

82. D.M. Anthony, E.L. Hines, D.A. Hutchins and J.T. Mottram, “Simulated ultrasound tomographic imaging of defects”, presented at NCM '91 Meeting (King's College, London, 1991), published in “Neural Network Application”, J.G. Taylor, ed., Springer‑Verlag, 1992, 41-57.

83. G. Hayward, A. Gachagan, R. Hamilton, D.A. Hutchins and W.M.D. Wright, “Ceramic‑epoxy composite transducers for non‑contacting ultrasonic applications”, presented at SPIE Conference (San Diego, California, July 1992).

84. J.T. Mottram, D.A. Hutchins, E.L. Hines, P. Corcoran and D.M. Anthony, “Detection of artificial defects in fibre reinforced composites using artificial neural networks”, presented at Polymer Engineering Conference (published by Polymer Engineering Group and SERC, Loughborough, September 1992), p5.

85. L.P. Scudder, D.A. Hutchins and G. Hayward, “Reception of laser‑generated ultrasound from a CFRP plate by an air‑matched piezoelectric composite transducer”, Review of Progress in Quantitative NDE Vol. 12 (Plenum Press, New York, 1993), pp. 571-578.

86. L.P. Scudder, D.A. Hutchins and N Guo, “Propagation of laser generated broadband ultrasonic pulses in a thick carbon fibre composite plate”, Review of Progress in Quantitative NDE Vol. 12 (Plenum Press, New York, 1993), pp. 1209-1216.

87. D.R. Billson and D.A. Hutchins, “Ultrasonic shear wave measurements of phase transitions in zircalloy at elevated temperatures”, Review of Progress in Quantitative NDE Vol. 12 (Plenum Press, New York, 1993), pp. 1661-1666.

88. D.R. Billson and D.A. Hutchins, “Visualisation of laser generated ultrasound in a solid, a liquid and in air”, Review of Progress in Quantitative NDE Vol. 12 (Plenum Press, New York, 1993), pp. 595-601.

89. D.A. Hutchins, “Some advances in ultrasonic data acquisition and processing”, presented at NDT '92 (31st Annual Conference of the British Inst. of NDT) (Invited Plenary Paper) (unpublished).

90. D.W. Schindel, D.A. Hutchins, L. Zou, M. Sayer and G. Hayward, “Capacitance devices for the generation of air‑borne ultrasonic fields”, presented at the 1992 IEEE Ultrasonics Symposium (Tuscon, Arizona, Oct. 1992), pp. 843-846.

91. D.A. Hutchins and D.P. Jansen, “Non‑contact Lamb wave tomography”, presented at the 1992 IEEE Ultrasonics Symposium (Tuscon, Arizona, Oct. 1992) pp.

92. D.A. Hutchins, P. Corcoran, E.L. Hines and J.T. Mottram, “A neural network approach to ultrasonic tomography”, presented at the 1992 IEEE Ultrasonics Symposium (Tuscon, Arizona, Oct. 1992), pp. 365-368.

93. D.A. Hutchins and D.P. Jansen, “Lamb wave tomography”, presented at the IOP Annual Review of Progress in Physical Acoustics and Ultrasonics (Magdalen College, Oxford, Sept. 1992, unpublished).

94. W.M.D. Wright and D.A. Hutchins, “Ultrasonic testing of green‑state engineering ceramics”, presented at the IOP Annual Review of Progress in Physical Acoustics and Ultrasonics (Magdalen College, Oxford, Sept. 1992, unpublished).

95. D.R. Billson and D.A. Hutchins, “Ultrasonic shear wave measurements of zircalloy at high temperatures”, presented at the IOP Annual Review of Progress in Physical Acoustics and Ultrasonics (Magdalen College, Oxford, Sept. 1992, unpublished).

96. D.W. Schindel, D.A. Hutchins and S.T. Smith, “A study of materials at high temperature using miniaturized resonant tuning forks”, presented at 124th Meeting of the Acoustical Society of America (New Orleans, USA, October 1992), abstract published in J. Acoust. Soc. Am. 92, 2314 (1992).

97. D.W. Schindel and D.A. Hutchins, “Capacitive devices for the efficient transduction of ultrasonic fields in air”, presented at 124th Meeting of the Acoustical Society of America (New Orleans, USA, October 1992), abstract published in J. Acoust. Soc. Am. 92, 2354 (1992).

98. D.W. Schindel, D.A. Hutchins, L. Zou and M. Sayer, “Capacitance transducers for generating ultrasonic fields in liquids and gases”, Proc. IEE Conference on Acoustic Sensing and Imaging, (IEE, Conference Publication No. 369, London, 1993) pp. 7-12.

99. W. Lauriks, C. Desmet, J. Thoen, M. Wevers, L.P. Scudder and D.A. Hutchins, “Thermoelastic nondestructive evaluation of carbon fibre reinforced composites using an intensity modulated power laser beam”, Proc. IEE Conference on Acoustic Sensing and Imaging, (IEE, Conference Publication No. 369, London, 1993) pp. 211-216.

100. W.M.D. Wright, D.A. Hutchins and G. Hayward, “Ultrasonic velocity imaging of slip-cast silicon nitride ceramics”, Proc. IEE Conference on Acoustic Sensing and Imaging, (IEE, Conference Publication No. 369, London, 1993) pp. 245-250.

101. D.A. Hutchins, J.T. Mottram, E.L. Hines and A.C. Pardoe, “Use of neural networks for ultrasonic tomographic inspection of polymer composites”, Proc. Ultrasonics International '93 Conference (Vienna, Austria, 1993), pp. 779-782.

102. D.W. Schindel, D.A. Hutchins and C. Edwards, “The capacitance transducer as a standard ultrasonic source in solids”, Proc. Ultrasonics International '93 Conference (Vienna, Austria, 1993), pp. 173-176.

103. W.M.D. Wright, D.A. Hutchins and M.H. Lewis, “Ultrasonic evaluation of ceramics during manufacture”, Proc. Ultrasonics International '93 Conference (Vienna, Austria, 1993), pp. 265-268.

104. D.W. Schindel, D.A. Hutchins L. Zou and M Sayer, “Micromachined capacitance transducers for air-borne ultrasonics”, Proc. Ultrasonics International '93 Conference (Vienna, Austria, 1993), pp. 675-678.

105. L. Scudder and D.A. Hutchins, “Ultrasonic propagation in fibre-reinforced polymer composites”, presented at Institute of Physics Congress 1993 (Brighton), Abstract booklet p. 17).

106. A.C. Pardoe, E.L. Hines, D.A. Hutchins and J.T. Mottram, “Applying neural networks to ultrasonic tomographic inspection of composite materials”, Presented at the third Irish Neural Network Conference (Belfast, 1993), in press.

107. L.P. Scudder, D.A. Hutchins and J.T. Mottram, “The ultrasonic impulse response of unidirectional carbon fibre laminates”, Presented at Acoustics of Advanced Materials for Underwater Applications Conference (Bath, UK, 1993), published in Proc. Inst. Acoust. 15, 38-47 (1993).

108. D.A. Hutchins, “Ultrasonic tomography for the nondestructive evaluation of materials”, 1993 Fall Meeting of the Acoustical Society of America, J. Acoust. Soc. Am. 94, 1836 (Invited).

109. A. Gachagan, G. Hayward, W.M.D. Wright and D.A. Hutchins, “Air coupled piezoelectric detection of laser generated ultrasound”, Proc. 1993 IEEE Ultras. Symp. 651-654.

110. D.A. Hutchins, W.M.D. Wright, L.P. Scudder, J.T. Mottram and D.W. Schindel, “Air-coupled ultrasonic testing of composites”, Proc. UCL Conf. on Inspection of Structural Composites (Invited), Bentham Press (N. Saffari, Ed., paper 8 (1994)).

111. W. Lauriks, B. Castagnede, J. Thoen, W. Wright and D.A. Hutchins, “Determination of the tortuosity of porous materials using new air-coupled ultrasonic transducers”, Proc. 11th FASE Symp. on Acoustic Materials and ultrasonic transducers, Valencia, 1994, 11-14.

112. D.A. Hutchins, “Recent advances in non-contact and air-coupled transducers”, presented at 1994 IEEE Ultrasonics Symposium, 1245-1254 (Invited).

113. D.A. Hutchins, W.M.D. Wright, L.P. Scudder and D.W. Schindel, “Air-coupled ultrasonic NDT”, Presented at NDT '94 Conf., York, Abstract Booklet p. 15 (1994).

114. D.A. Hutchins, A.G. Bashford, W.M.D. Wright and D.W. Schindel, “Characterisation of the field of an air-coupled ultrasonic silicon capacitance transducer”, Proc. 1994 QNDE Conf. (Colorado, USA), Vol. 14A, 945-950 (1995).

115. W.M.D. Wright, D.A. Hutchins, A. Gachagan and G. Hayward, “Evaluation of fibre-reinforced composites using a non-contact laser/air transducer system”, Proc. 1994 QNDE Conf. (Colorado, USA), Vol. 14B, 1333-1340 (1995).

116. W.M.D. Wright, D.A. Hutchins and D.W. Schindel, “Ultrasonic evaluation of polymers and composites using air-coupled capacitance transducers” Proc. 1994 QNDE Conf. (Colorado, USA), Vol. 14B, 1399-1406 (1995).

117. A.G. Bashford, D.A. Hutchins, D.R. Billson, H.D. Mair and M.D.C. Moles, “High temperature nondestructive evaluation of hydrided metal tubing”, Proc. 1994 QNDE Conf. (Colorado, USA), Vol. 14B, 1625-1632 (1995).

118. A.G. Bashford, D.A. Hutchins and D.W. Schindel, “The response of an air-coupled ultrasonic transducer for various backplates and apertures”, Proc. 1995 QNDE Conference (Seattle, USA), 1043-1050 (1996).

119. B. Hosten, D.A. Hutchins and D.W. Schindel, “Air-coupled ultrasonic bulk waves to measure elastic constants in composite materials”, Proc. 1995 QNDE Conference (Seattle, USA), 1075-1082 (1996).

120. A.C. Pardoe, D.A. Hutchins, E.L. Hines and J.T. Mottram, “High resolution ultrasonic image reconstruction in composite materials using neural networks”, Proc. 1995 QNDE Conference (Seattle, USA), 853-860 (1996).

121. W.M.D. Wright, D.A. Hutchins and D.W. Schindel, “Non-contact tomography using air-coupled capacitance transducers”, Proc. 1995 QNDE Conference (Seattle, USA), 1051-1058 (1996).

122. D.A. Hutchins, W.M.D. Wright, G. Hayward and A. Gachagan, “Ultrasonic imaging using laser generation and piezoelectric air-coupled detection”, presented at Ultrasonics International '95 Conf. (Edinburgh, Scotland), published in Ultrasonics 34, 169-172 (1996).

123. A.G. Bashford and D.A. Hutchins, “Radiated field of an air-coupled ultrasonic transducer”, presented at Ultrasonics International '95 Conf. (Edinburgh, Scotland), published in Ultrasonics 34, 405-409 (1996).

124. D.A. Hutchins, A.G. Bashford, W.M.D. Wright and D.W. Schindel, “Advances in wide bandwidth air-coupled capacitance transducers”, Proc. 1995 IEEE Ultrasonics Symposium (Seattle, USA), pp. 981-984.

125. D.A. Hutchins, W.M.D. Wright, L.P. Scudder and D.W. Schindel, “Pulsed photoacoustics using an air-coupled detector”, Proc. Forum Acusticum 1996 (Antwerp, Belgium), in Acta Acustica 82, Suppl. 1, p. S119.

126. A.G. Bashford and D.A. Hutchins, “Mica-based capacitance transducers for immersion applications”, Presented at the December 1996 meeting of the Acoustical Society of America, published in J. Acoust. Soc. Am. 100, No. 4 (pt.2), p. 2730 (1996).

127. D.A. Hutchins, A.G. Bashford, W.M.D. Wright, D.W. Schindel and A. Kumar, “Air-coupled ultrasonic capacitance transducers for NDT”, Proc. 14th World Conference on NDT (New Dehli, India, 1996), Oxford and IBH Publishing, New Dehli, pp. 2061-2064.

128. A.G. Bashford and D.A. Hutchins, “Characteristics of ultrasonic micromachined capacitance transducers in water”, Proc. 1996 IEEE Ultrasonics Symposium (San Antonio, Texas, USA), 955-958.

129. D.A. Hutchins, D.W. Schindel, A.G. Bashford and W.M.D. Wright, “Advances in ultrasonic electrostatic transduction”, presented at Ultrasonics International ’97 Conf., published in Ultrasonics 36, 1-6 (1998).

130. A.G. Basford and D.A. Hutchins, “Non-destructive evaluation of green-state ceramics using micromachined air-coupled capacitance transducers”, presented at Ultrasonics International ’97 Conf., published in Ultrasonics 36, 121-126 (1998).

131. C.S. McIntyre and D.A. Hutchins, “A new design of ultrasonic air-coupled ribbon transducer”, Proc. 1997 IEEE International Ultrasonics Symposium (Toronto, Canada), pp. 1029-1032.

132. D.A. Hutchins, W.M.D. Wright, D.W. Schindel and P.W. Capenter, “Ultrasonic capacitance transducers for flow and temperature tomography in air”, Proc. 16th International Congress on Acoustics and 135th Meeting of the Acoustical Society of America (Seattle, USA, June 1998), pp. 743-744.

133. P. Ingleby, T.J. Robertson, D.A. Hutchins and D.W. Schindel, “Ultrasonic air-coupled capacitance transducers using thin mica films”, Proc. 16th International Congress on Acoustics and 135th Meeting of the Acoustical Society of America (Seattle, USA, June 1998), pp. 745-746.

134. C.S. McIntyre, D.A. Hutchins and D.W. Schindel, “Recent developments in air-coupled ultrasonic capacitive transducers for use with NDE experiments”, Proc. 16th International Congress on Acoustics and 135th Meeting of the Acoustical Society of America (Seattle, USA, June 1998), pp. 746-747.

135. D.R. Billson, D.A. Hutchins, P. Ingleby and T.J. Roberston, “Novel ultrasonic air-coupled transducers”, Proc. QNDE ‘98 Conf., in Rev. Prog. Nondestr. Eval., Vol. 18, pp. 1021-1028 (1998).

136. R.A. Noble, R.J. Bozeat, T.J. Robertson, D.R. Billson and D.A. Hutchins, “Novel silicon nitride micromachined wide bandwidth ultrasonic transducers”, Proc. 1998 IEEE International Ultrasonics Symp. (Sendai, Japan), pp1081-1084 (1998).

137. D.A. Hutchins, D.R. Billson and C.S. McIntyre, “Experiments in solids using air-coupled ultrasound”, to be presented at 137th Meeting of the Acoustical Society of America/Forum Acusticum (Berlin, Germany), abstract in J. Acoust. Soc. Am. 105, no. 2 pt. 2, p.1016 (1999).

138. A.R.D. Jones, R.A. Noble, R.J. Bozeat and D.A. Hutchins, “Micromachined ultrasonic transducers for damage detection in CFRP composites”, Proc. Smart Structures and Materials 1999: Smart Electronics and MEMS (San Diego, USA), SPIE Vol. 3673, pp. 369-378 (1999).

139. D.R. Billson, D.A. Hutchins, J. McIntosh, W.M.D. Wright, R.A. Noble and A.R.D. Jones, “Detection of laser-generated ultrasound by micromachined capacitance transducers”, Proc. QNDE ‘99 Conf., in Rev. Prog. Nondestr. Eval., Vol. 19, 319-326 (2000).

140. T. J. Robertson, D. A. Hutchins and D. R. Billson, “An air-coupled line-focused capacitive ultrasonic transducer”, Proc. 2000 IEEE International Ultrasonics Symp. (Puerto Rico), Vol.2, pp 1061-1064 (2000).

141. T.H. Gan, D.A. Hutchins and F.C. Wong, “Ultrasonic tomographic imaging of an encased highly-attenuating solid media”, Proc. 2000 IEEE International Ultrasonics Symp. (Puerto Rico), Vol. 1, 823-826 (2000).

142. R.A. Noble, T.J Robertson, J.S. McIntosh, D.A. Hutchins and D.R. Billson, “Miniature silicon micromachined ultrasonic point detectors for measurement of air-borne radiated fields”, Proc. 2000 IEEE International Ultrasonics Symp. (Puerto Rico), Vol. 1, 995-998 (2000).

143. T.H. Gan, D.A. Hutchins, P.W. Carpenter and D.R. Billson, “Simultaneous reconstruction of flow and temperature cross-sections in gas jets using air-coupled ultrasonic tomography”, Proc. 2001 IEEE International Ultrasonics Symp. (Atlanta, USA), pp. 623-626.

144. J.S. McIntosh, D.A. Hutchins, T.J. Robertson, A. Nield, D.R. Billson, R.A. Noble and A.R.D. Jones, “Micromachined capacitive transducer arrays for imaging in air”, Proc. 2001 IEEE International Ultrasonics Symp. (Atlanta, USA), pp. 929-932.

145. R.A. Noble, R.R. Davies, L. Koker, K.M. Brunson, A.R.D. Jones, T.J. Robertson, D.A. Hutchins, J.S. McIntosh, and D.R. Billson, “Cost-effective and manufacturable route to the fabrication of high-density 2D micromachined transducer arrays and CMOS signal conditioning electronics on the same silicon substrate”, Proc. 2001 IEEE International Ultrasonics Symp. (Atlanta, USA), pp. 941-944.

146. T.J. Robertson, D.A. Hutchins, J.S. McIntosh, D.R. Billson, R.A. Noble and A.R.D. Jones, “Radiated fields of rectangular air-coupled micromachined transducers”, Proc. 2001 IEEE International Ultrasonics Symp. (Atlanta, USA), pp. 891-894.

147. J.S. McIntosh, D.A. Hutchins, D.R. Billson, T.J. Robertson, R.A. Noble and A.D.R. Jones, “The characterisation of capacitive micromachined ultrasonic transducers in air”, Proc. Ultrasonics Int. 2001 Conf. (Delft, The Nederlands), published in Ultrasonics 40, 477-483 (2002).

148. D.W. Choi, D.A. Hutchins and D.R. Billson, “Gas jet as a waveguide for air-coupled ultrasonics”, Proc. Ultrasonics Int. 2001 Conf. (Delft, The Nederlands), published in Ultrasonics 40, 145-151 (2002).

149. D.W. Choi, C. McIntyre, D.A. Hutchins and D.R. Billson, "Gas jet as a waveguide for air-coupled ultrasound", Proc. 17th International Congress on Acoustics (Rome, Italy, September 2001), Vol. 2, Measurement Techniques and Transducers Section, pp. 52-53.

150. T.H Gan, D.A. Hutchins and D.R. Billson, “Wide bandwidth air-coupled ultrasonic testing of food containers in air”, Proc. Review of Progress in Quantitative Nondestructive Evaluation (Bellingham, Washington, USA, July 2002), Vol. 22B, pp. 1689-1696.

151. T.H Gan, D.A. Hutchins and R.J. Green, “Swept frequency multiplication (SFM) techniques for improved air-coupled ultrasonic NDE”, Proc. Review of Progress in Quantitative Nondestructive Evaluation (Bellingham, Washington, USA, July 2002), Vol. 22A, pp. 620-627.

152. T.H Gan, D.A. Hutchins and D.R. Billson, “High resolution air-coupled imaging of thin materials”, Proc. 2002 IEEE Ultrasonics Symposium, Munich, Germany, pp.875-878.

153. R.A. Noble, R.R. Davies, D.O. King, M.M. Day, A.R.D. Jones, J.S. McIntosh and D.A. Hutchins, “Low temperature micromachined cMUTs with fully-integrated front-end electronics”, Proc. 2002 IEEE Ultrasonics Symposium, Munich Germany, pp. 1018-1023 (Invited).

154. J.S. McIntosh, D.A. Hutchins, D.R. Billson, R.A. Noble, R.R. Davies and L. Coker, “SAFT Imaging using immersed capacitive micromachined ultrasonic transducers”, Proc. 2002 IEEE Ultrasonics Symposium, Munich, Germany, pp. 993-996.

155. A. Neild, D.A. Hutchins, T.J. Robertson, D.W. Schindel, “Theoretical model of a planar piston field focussed by reflection” Proc. 2002 IEEE Ultrasonics Symposium, Munich, Germany, pp. 1163-1166.

156. J.S. McIntosh, D.A. Hutchins, D.R. Billson, R.A. Noble, R.R. Davies and L. Coker, “SAFT Imaging using immersed capacitive micromachined ultrasonic transducers”, Proc. 2nd International Workshop on MUTs (Besancon, France, 2002), pp.82-86.

157. D.A. Hutchins, T.J. Robertson and D.R. Billson, “New designs of focused air-coupled ultrasonic transducer” presented at Forum Acusticum 2002, Sevilla, Spain. Abstract in Acta Acustica 88, S141; full paper in Revista de Acustica 33, no. 3-4, paper Ultr-04-001-IP (Invited).

158. A. Neild, D.A. Hutchins, T.J. Robertson and D.R. Billson, “Imaging using air-coupled polymer-membrane capacitive ultrasonic arrays”, presented at Ultrasonics International 2003 (Granada, Spain), paper published in Ultrasonics 42, 859-864 (2004).

159. J.S. McIntosh, A. Neild, D.A. Hutchins, D.R.Billson, R.A. Noble and R.R. Davies, “Nearfield Modelling of Small Arrays of Capacitive Micromachined Ultrasonics Transducers (cMUTs)”, presented at Ultrasonics International 2003 (Granada, Spain), paper published in Ultrasonics 42, 447-452 (2004).

160. T. H. Gan, T. J. Robertson, D. A. Hutchins and D. W. Schindel, “Ultrasonic imaging of thin materials using high resolution air-coupled transducers”, presented at Acoustical Imaging 2003, Saarbruken, Germany.

161. J. Berriman, T.H. Gan, D.A. Hutchins, P. Purnell, 'Non-Contact Ultrasonic Interrogation of Concrete', International Symposium of Non-Destructive Testing in Civil Engineering (NDT-CE), September 16-19, 2003 in Berlin, Germany, paper 54 (ISBN 3-931381-49-8).

162. P. Purnell, D.A. Hutchins, N. Berriman, T.H. Gan, “Advanced ultrasonic for non-destructive diagnostics in concrete”, Abstracts: Cement and Concrete Science, University of Leeds, UK, 8-9 September, 2003, pp.109-112.

163. P. Purnell, T.H. Gan, D.A. Hutchins, “Advanced ultrasonics and concrete: air-coupling, broadband acoustic transducers and pulse compression”. Abstracts: Cement and Concrete Science, University of Greenwich, UK, 2/3 September 2002. pp. 3-4.

164. J. Berriman, A. Neild, D.A. Hutchins, T.H. Gan and P. Purnell, "Time-Frequency Analysis of Non-Contact Ultrasonic Signals for the NDE of Concrete," Proceedings of ICA 2004 (Kyoto, Japan), pp. 1599 - 1602.

165. A. P. Medley, D. R. Billson, D. A. Hutchins, and L. A. J. Davis, "A New Design of Thin and Flexible Loudspeaker," ICA 2004 (Kyoto, Japan), pp.779 – 782.

166. T.H.Gan and D.A. Hutchins, “Non-contact ultrasonic measurements of food products”, Proc. 2004 CIGR International Conference·Beijing, China, 11- 14 October 2004 (in press).

167. K.S. Ho, T.H. Gan, D.R. Billson and D.A. Hutchins, “Application of pulse compression signal processing techniques to electromagnetic acoustic transducers (EMATs) for non-contact thickness measurements and imaging”, Proc. 16th World Conference on NDE (Montreal, Canada, 2004), in press.

168. A. P. Medley, D. A. Hutchins, and D. R. Billson, “Radiated fields of thin and flexible high frequency loudspeakers,” Proceedings of the 149th Meeting of the Acoustical Society of America, Vancouver, Canada, 16–20, May 2005.

169. L.A.J. Davis, D.A. Hutchins, R.A. Noble and D. Banfield, “The Characterisation of cMUTs at Low Gas Pressures”, Proc. 2005 IEEE International Ultrasonics Symposium (Rotterdam, The Netherlands, October 2005), Vol. 4, 1937-1940.

170. G. G. Diamond and D.A. Hutchins, “An electrostatic imaging technique for NDT”, presented at 2005 BINDT Conference (Harrogate, Sept. 2005).

171. G. G. Diamond, D.A. Hutchins, K.K. Leong and T.H. Gan, “Electrostatic capacitive imaging: a new NDE technique”, presented at Review of Progress in Quantitative NDE Conf. (Washington State, USA), in press.

172. G. G. Diamond and D.A. Hutchins, “A new capacitive imaging technique for NDT”, presented at 2006 European Conference on NDT (Berlin, Germany, Sept. 2006), in press.

173. R. J. Bradley, D. R. Billson and D. A. Hutchins, “Novel Capacitive Ultrasonic Transducers Fabricated Using Microstereolithography”, presented at 2006 IEEE International Ultrasonics Symposium (Vancouver, Canada, October 2006), in press.

174. D.A. Hutchins, “Non-contact quality assessment of food products”, presented at Joint Meeting of the Food Manufacturing Engineering Group and the Automated Food Assembly Network on Instrumentation for Sustainability & Quality in Food Manufacturing (University of Oxford, November 2006).

175. P. Pallav, D.A. Hutchins and T.H.Gan, “Air-coupled ultrasonic evaluation of food materials”, presented at International Congress on Ultrasound (ICU2007), Vienna, Austria, April 2007.

176. C. Li, D.A. Hutchins and R.J. Green, “Ultrasonic wireless digital communication systems” presented at International Congress on Ultrasound (ICU2007), Vienna, Austria, April 2007.

177. E. Campbell, G. Hayward, L.A.J. Davis, D.A. Hutchins and R.A. Noble, “Cross-coupling in capacitive micromachined ultrasonic transducer (cMUT) arrays”, presented at International Congress on Ultrasound (ICU2007), Vienna, Austria, April 2007.

178. P. Pallav, D.A. Hutchins, G.G. Diamond and T.H. Gan, “Dual-mode combined infra red and air-coupled ultrasonic technique for real-time industrial process control with special reference to the food industry”, in 34th Annual Review of Progress in Quantitative Nondestructive Evaluation, Proc. AIP, volume 975, pp. 1630-1637 (2008).

179. G. Diamond, D.A. Hutchins and T.H. Gan, “Defect detection using capacitive imaging”, in 34th Annual Review of Progress in Quantitative Nondestructive Evaluation, Proc. AIP, volume 975, pp. 641-647 (2008).

180. G. Diamond, P.Pallav and D.A. Hutchins, “Near infrared (NIR) imaging for NDE”, in 34th Annual Review of Progress in Quantitative Nondestructive Evaluation, Proc. AIP, volume 975, pp. 688-695 (2008).
181. D.A. Hutchins, D.R. Billson and R.J. Bradley, “Polymer-based CMUTS”, Proc 19th International Congress on Acoustics (ICA 2007), paper ULT-04-001-IP. Conference published on CD as a special issue of the journal Revista de Acustica, Vol. 38 (2007). (Invited).
182. D.A. Hutchins, P. Pallav and D.W. Schindel, “Industrial applications of air-coupled ultrasound”, Proc 19th International Congress on Acoustics (ICA 2007), paper ULT-02-004-IP. Published on CD as a special issue of the journal Revista de Acustica, Vol. 38 (2007). (Invited).

183. GG Diamond, DA Hutchins, P Pallav and RJ Green, “A Novel Low Cost Alternative to THz for Security and Defence Applications”, Proc. of SPIE, Infrared technology and applications No. 34 (Orlando, USA, 2008) vol. 6940 (2), pp. 69401S.1-69401S.8 .

184. C. Wilson, D.A. Hutchins, L. A. J. Davis and M. C. Towner, “An ultrasonic anemometer for Mars”, presented at 155th Meeting of the Acoustical Society of America, Paris, France, 2008).

185. D.A. Hutchins, R.C. Bradley and D.R. Billson, “Use of rapid prototyping techniques in transducer manufacture”, presented at 155th Meeting of the Acoustical Society of America, Paris, France, 2008).

186. C. Li, D.A. Hutchins and R.J. Green, “Short range ultrasonic communications in air using quadrature modulation schemes”, Proc. Int. Conf. On Wireless Information Networks and Systems (WYNSIS 2009), Milan, Italy, pp 100-104, 2009.

187. C. Canal, A. Saleem, R.J. Green and D.A. Hutchins,“Remote identification of chemicals concealed behind clothing by combining imnaging and spectroscopy in the near infrared range”, presented at Photon 10 Conf., Southampton, UK (IOP), 2010.

188. D.A.Hutchins, “Electromagnetic and capacitive transducers”, IOP Physical Acoustics Tutorial Day, 23 Sept. 2010, Invited talk.

189. X. Yin, D. A. Hutchins, and G. G. Diamond,”Capacitive Imaging Technique for NDE”, presented at Review of Progress in Quantitative NDE Conf.,San Diego, California, July 2010.

190. C. Canal, A. Saleem, R.J. Green and D.A. Hutchins, “Near infrared spectroscopy for personal screening”, SPIE Conf. on Photonics for Counterterrorism and Crime Fighting VI, Toulouse, France, September 2010 (Proc. SPIE 7838, 78380G (2010); doi:10.1117/12.865831).

191. S. Assous, C. Hopper, P.B. Wilkinson, D. Gunn, P. Jackson, D.A. Hutchins, L. Davis, and P. Zimmerman, “Optimum signals for acoustic security screening of cargo containers”, presented at ICA2010 Conference (Sydney, Australia, 2010).

192. A. Saleem, C. Canal, D.A. Hutchins, “NIR spectroscopy with multivariate calibration and lock-in amplification to detect chemicals concealed behind fabrics”, Paper 8018-54 of SPIE Conf. on Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XII(Proc. SPIE 78018, 2011).

193. D.A. Hutchins, L.A.J.Davis, P.D.Jackson, D.A. Gunn, S. Assous, P.B. Wilkinson, C. Hopper and P.D. Zimmerman, “Acoustic transmission methods for road transport security screening”, presented at the 1st EU Conf. on the Detection of Explosives, Avignon, France, paper PO32 (2011).

194. D.A. Hutchins, C.M. Canal, A. Saleem, L.A.J. Davis and R.J. Green, “Remote identification of chemicals concealed behind clothing using near infrared imaging and spectroscopy”, presented at the 1st EU Conf. on the Detection of Explosives, Avignon, France, paper PO33 (2011).

195. D.A. Hutchins, “Design of concrete for acoustic instrument construction”, Keynote paper, Culture, Society and Innovation (CSI) Hub, Leeds, 16-17 June 2011.

196. K.S. Ho, D.A. Hutchins, DR. Billson, M.H. Li and A. Gachagan, “Extraction of Texture in Metal Sheet Using Non-Contact Electromagnetic Acoustic Transducers (EMATs) and Wavelet Processing”, Presented at 2011 QNDE Conf. (Maine, USA, July 2011).

197. D.A. Hutchins, C. Li and R.J. Green, “Acoustic methods for data transmission across a room”, presented at 161st Meeting of the Acoustical Society of America, Seattle, USA, 2011, abstract in J. Acoust. Soc. Amer. vol. 129, issue 4, p. 2546.

198. D.A. Hutchins, A. Saleem, C. Canal, R.J. Green and and L.A.J. Davis, “Near infrared transmission through clothing – applications in sensing and screening”, in Optics and Photonics for Counterterrorism and Crime Fighting VII; Optical Materials in Defence Systems Technology VIII; and Quantum-Physics-based Information Security Proceedings of SPIE Volume: 8189, paper number 8189OK (2011).

 

PATENTS

European Patent Application No 07733789.7; “Imaging Apparatus and Method”, in process

International (PCT) Patent Application No. PCT/EP2011/052151, “Three-Dimensional Optical and Material Structures”, in process.
Patent Application number GB020457.2 filed on 27February2002, and subsequently filed as PCT GB03/000828, and published WO03073093, application filed national stage as US2005155430, EP1478921, AU20033208453, “Method of inspecting food stuffs and/or associated packaging”.