Acoustic Image Converter for Three-Step Acoustic Holography

  • Amin Hanafy
  • Mauro Zambuto

Abstract

A unique Acoustic Image Converter with microhorn structure in the output stage is developed. The converter constitutes a fundamental link in the three step method of acoustic holography. Using real time optical holographic interferometry for the detection of the acoustical hologram. The sensitivity, already enhanced by the step bias method, is further increased by the improved Acoustic impedance match of the converter and by the micro-horn structure. The most important function of the latter, however, is the minimization of lateral cross coupling in the transfer of acoustic interference patterns from water to air media. Recent results of acoustic holography method incorporating the new converter are presented.

Keywords

Half Wave Brightness Distribution Holographic Interferometry Quarter Wave Image Converter 
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 1977

Authors and Affiliations

  • Amin Hanafy
    • 1
    • 2
  • Mauro Zambuto
    • 1
    • 2
  1. 1.Hewlett Packard and New Jersey Institute of TechnologyWalthamUSA
  2. 2.Hewlett Packard and New Jersey Institute of TechnologyNewarkUSA

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