Acoustic Microscopy Using Amplitude and Phase Measurements

  • P. Reinholdtsen
  • B. T. Khuri-Yakub
Conference paper
Part of the Review of Progress in Quantitative Nondestructive Evaluation book series (RPQN, volume 6 A)


We have built a low-frequency scanning acoustic microscope (SAM) that measures both amplitude and phase. The majority of SAMs simply measure the amplitude of the reflected signal. Measuring the phase gives a great deal more information. For one thing, the phase is very sensitive to height variations. Measuring the phase also gives us the ability to do signal processing on the resulting images, such as removing the effects of surface features from defocused images of subsurface defects.


Fuse Quartz Tone Burst Acoustic Image Shallow Depression Acoustic Microscope 
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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Copyright information

© Springer Science+Business Media New York 1987

Authors and Affiliations

  • P. Reinholdtsen
    • 1
  • B. T. Khuri-Yakub
    • 1
  1. 1.Edward L. Ginzton Laboratory W. W. Hansen Laboratories of PhysicsStanford UniversityStanfordUSA

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