Chapter 6

Quantitative Acoustic Microscopy Based on the Array Approach

Sergey Titov

Sergey Titov

Russian Academy of Sciences, N.M. Emanuel Institute of Biochemical Physics, 4 Kosygin st., Moscow 119344, Russia

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Prof. Roman Gr. Maev

Prof. Roman Gr. Maev

University of Windsor, Institute for Diagnostic Imaging Research, 401 Sunset Avenue, Windsor, ON N9B 3P4, Canada

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First published: 20 March 2013

Summary

This chapter considers the application of ultrasonic arrays for measurement of the velocity and attenuation of the leaky surface wave and for simultaneous measurement of the bulk wave velocity and the thickness of the plate specimen. In the leaky surface acoustic wave (LSAW) measurement the tilted transducer is usually used for effective generation of the leaky waves since their critical angles are relatively large. For measurement of the bulk wave velocities and the thickness of the plate specimen the incident angles of the probing and reflected waves are relatively small. In comparison with the existing quantitative acoustic microscopy method, mechanical scanning of the transducers is no longer used in the considered technique, and the measurement time is only limited by the time of wave propagation and the speed of the electronic data acquisition system.

Controlled Vocabulary Terms

acoustic microscopy; acoustic wave propagation; acoustic wave velocity; data acquisition; surface acoustic wave devices; ultrasonic arrays

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