Apparatus for measuring deformation

Details Apparatus for measuring deformation Apparatus for measuring deformation

1981-12-08

1984-02-21

Myracle, Jerry W.

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

By loading of specimen

356 355, G01L 124

Patent

active

044322399

ABSTRACT:
Arranged in succession on a common optical axis is a laser, a modulator for shifting the frequency of light produced by the laser, an optical system for forming two light beams, a system of markers formed on the surface of a specimen being tested and a recorder of an interference pattern resulting from the interference of light scattered by the markers.

REFERENCES:
patent: 3184969 (1965-05-01), Bell
patent: 3831436 (1974-08-01), Sanford
patent: 3903734 (1975-09-01), Douglas

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