Time and polarization resolved acoustic microscope

Details Time and polarization resolved acoustic microscope Time and polarization resolved acoustic microscope

1996-05-10

1999-07-13

Williams, Hezron

Measuring and testing

Vibration

By mechanical waves

310336, G01N 2922, G01N 2906

Patent

active

059229616

ABSTRACT:
An acoustic microscope system is provided for analyzing the properties of a olid sample with fluid coupling. The system includes a transducer comprising a curved active piezoelectric element and an insulating backing member having a curved surface on which the piezoelectric element is mounted, a casing for backing member, and electrical input/output leads connected to the piezoelectric element. A pulser receiver, connected to the leads of the transducer, generates coherent test pulses of short duration and receives echoes from the solid sample resulting from these pulses and having a received echo waveform comprising multiple arrivals including direct reflection from the interface between the fluid and the solid sample. A wave recorder records the received echo waveform so as to enable the determination therefrom of information relating to the characteristics of the solid sample.

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