Portable ultrasonic measurement system

Details Portable ultrasonic measurement system Portable ultrasonic measurement system

1977-12-29

1978-11-07

Myracle, Jerry W.

Measuring and testing

Vibration

Sensing apparatus

G01N 2900

Patent

active

041239440

ABSTRACT:
A portable apparatus for measuring ultrasonic signal waves using interference between a reference reflected laser beam and one reflected from a gold-coated plastic film exposed to the sonic signal and located at the interface between liquids of different viscosity but which have substantially equal acoustic impedances. The liquids may respectively comprise water and fluorocarbon liquid.

REFERENCES:
patent: 3576521 (1967-06-01), Silverman
patent: 3969578 (1976-07-01), Mezrich et al.

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