Strain-optic voltage monitor wherein strain causes a change in t

Details Strain-optic voltage monitor wherein strain causes a change in t Strain-optic voltage monitor wherein strain causes a change in t

1995-03-20

1997-01-14

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

324 72, 324 96, 324457, 359322, G01R 3100

Patent

active

055942407

ABSTRACT:
A voltage monitor which uses the shift in absorption edge of crystalline material to measure strain resulting from electric field-induced deformation of piezoelectric or electrostrictive material, providing a simple and accurate means for measuring voltage applied either by direct contact with the crystalline material or by subjecting the material to an electric field.

REFERENCES:
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patent: 4356448 (1982-10-01), Brogardh et al.
patent: 4493995 (1985-01-01), Adolfsson et al.
patent: 4523092 (1985-06-01), Nelson
patent: 4939447 (1990-07-01), Bohnert et al.
patent: 4945230 (1990-07-01), Saaski et al.
J. D. Weiss et al., "Gallium Arsenide as an Optical Strain Gauge," Sand 94-0710J, Mar. 15, 1994.
J. D. Weiss, "Gallium Arsenide Strain-Optic Voltage Monitor," submitted to Sensors, Journal of Applied Sensing Technology, Dec. 1994, scheduled publication date: Sep., 1995.

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