Acoustic Microscopy for Nondestructive Evaluation of Materials

Abstract

Our work consisted of further improvements in the acoustic microscope. We have extended the operation to higher frequencies (3.6 GHz with a wavelength of 0.4 micrometers). We have built new hardware and developed new software to enable us to record the image in digital form on floppy discs. We have devised a system for recording two simultaneous images, each with a different frequency. The difference frequency can be varied as we wish. We have done further work on materials - both Inconel and manganese ferrite.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1981
Accession Number
ADA098804

Entities

People

  • Calvin Quate

Organizations

  • Stanford University

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Acoustic Frequencies
  • Acoustic Impedance
  • Acoustic Microscopes
  • Acoustic Propagation
  • Acoustic Properties
  • Acoustic Signals
  • Acoustic Waves
  • Acoustics
  • Crystal Structure
  • Detectors
  • Frequency
  • Materials
  • Metals
  • Microscopes
  • Microscopy
  • Photoacoustic Tomography
  • Reflection

Fields of Study

  • Physics

Readers

  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Electronics Engineering
  • Surface Engineering/Surface Coating Technology.