Differential amplitude contrast in acoustic microscopy
- 23 November 1987
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 51 (21) , 1687-1689
- https://doi.org/10.1063/1.98544
Abstract
A differential amplitude contrast scanning acoustic microscope is described. The operation of this system resides on a two-beam acoustic lens which produces two adjacent spots at its focal plane. The signals received from these two foci are first amplitude demodulated and then electronically subtracted from each other, resulting in a differential amplitude imaging signal. Experiments at 10 MHz are described and illustrated by a number of images.Keywords
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