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Quasi-Real Time Imaging of Pulsed Acoustic Fields

  • M. S. S. Bolorforosh
  • C. W. Turner
Part of the Acoustical Imaging book series (ACIM, volume 16)

Abstract

Experimental results obtained from optically-scanned imaging of 3MHz pulsed acoustic fields are presented and discussed in the context of ultrasonic transducers used for B-scan medical imaging and industrial NDE.

The system described is shown to be capable of producing quasi-real time images of wideband pulses radiated by water-immersed transducers, for pulse durations down to 1µs in length. The results obtained are compared with those measured under C.W. excitation of the same test transducer. The physical limitations of the system are discussed in respect of the optical scanning process, the materials parameters and the signal processing requirements.

Keywords

Acoustic Field Acoustic Pulse Acoustical Image Silicone Grease Transducer Evaluation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    C.W. Turner and S.O. Ishrak, “Two-dimensional Imaging with a High Resolution PVF2/Si Optically-scanned Receiving Transducer”, Acoustical Imaging, Vol.11, J.P. Powers, Ed., Plenum Press, New York, 1981, pp 77–93.Google Scholar
  2. 2.
    M. Salahi and C.W. Turner, “Improved Evaluation of Acoustic Transducers Using Digital Processing of Radiation Field Images”, IEEE Trans. Sonics Ultrason., Vol SU31, pp 307–312, July 1984.Google Scholar
  3. 3.
    R.C, Preston et al, “PVDF Membrane Hydrophone Performance, etc.,” J. Phys. E. Sci. Instrum., Vol. 16. 1983, pp 786–796.ADSCrossRefGoogle Scholar
  4. 4.
    C.W. Turner and, S.O. Ishrak, “Comparisons of Different Piezoelectric Transducer Materials for Optically-scanned Acoustical Imaging”. Acoutical Imaging, Vol.10, P. Alais and A. Metherell, Eds., Plenum Press, New York, pp761–778, 1980.Google Scholar

Copyright information

© Plenum Press, New York 1988

Authors and Affiliations

  • M. S. S. Bolorforosh
    • 1
  • C. W. Turner
    • 1
  1. 1.Department of Electronic and Electrical EngineeringKing’s CollegeLondonEngland

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