NDTnet 1998 May, Vol.3 No.5
The Hardware Concept of a new Digital Ultrasonic NDE System
L.Svilainis and V.Puodziunas; Kaunas Lithuania *

TABLE OF CONTENTS

Abstract

Introduction

Transducer excitation

Transducers

Receiver/preamplifier

Filtering

Main amplifier

Scanner

A/D conversion

Sampling in ultrasonic system

Conclusions

Acknowlegements

References

  1. Ohta K. and Watanabe Ultrasonic flaw detection using a synthetic waveform generator and finite impulse response filter (FIR-filter), T.NDT & E International Vol 30, 6, 1997 p405
  2. Grimaldi U. and Parvis M. Enhancing ultrasonic sensor performance by optimization of the driving signal Measurement Vol 14, 1995 p219-228
  3. Sukhorukov V., Vainberg E., Kazys R. Non-destructive testing. Imaging and automation of testing Vol 5 (Vysshaja shkola) Moscow (1993) Ch 5
  4. Lovejoy A., Pedrick P. et all A novel 8-bit ultrasound phased-array controller for hypertermia applications. Ultrasonics Vol 33 1995 p.69-73
  5. Fitting D.W., Adler L. Ultrasonic spectral analysis for non-destructive evaluation. Plenum Press, New York (1981)
  6. Armitage A.D., Scales N.R et. all An integrated array transducer receiver for ultrasound imaging Sensors and Actuators A: Physical Vol 47, 1995 p542-546
  7. Hughes D.I. and Duck F.A. Automatic attenuation compensation for ultrasonic imaging Ultrasound in Medicine & Biology Vol 23, 1997 p 651-664
  8. Kazys R. and Svilainis L. Analysis of adaptive imaging algorithms for ultrasonic non-destructive testing. Ultrasonics 1995. Vol 33, No1. p.19-30.
  9. Bracewell R.N. The Fourier transform and it's applications. 2-nd ed., revised, McGraw-Hill, (1986)
  10. Vaitkus N., Svilainis L., Dumbrava V. General purpose scanning unit for NDT ultrasonic systems. // Proc. of higherschools of Lithuania, Ultragarsas, 1993, vol.25. p.p.88-97.
  11. Lasser M., Harrison G., Real time, large area ultrasound imaging system using two-dimensional array technique. F - A
    NDTnet Journal, http://www.ndt.net, Vol. 3 No. 3 (March 1998)
  12. Svilainis Linas, Analysis and Optimization of Ultrasonic Imaging Methods for Inhomogeneous Structures. F - A
    NDTnet Journal, http://www.ndt.net, Vol. 2 No. 5 (May 1997)

Authors

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