Distributed, spatially resolving optical fiber strain gauge

Details Distributed, spatially resolving optical fiber strain gauge Distributed, spatially resolving optical fiber strain gauge

1986-10-03

1988-08-02

McGraw, Vincent P.

Optics: measuring and testing

Material strain analysis

73800, 250227, G01B 1116

Patent

active

047610735

ABSTRACT:
A distributed, spatially resolving optical fiber strain gauge in which the core of the optical fiber is written with periodic grating patterns effective for transmitting and reflecting light injected into the core. Spectral shifts in the transmitted and reflected light indicate the intensity of strain or temperature variations at positions of the grating corresponding to the associated wavelengths of injected light.

REFERENCES:
patent: 3458257 (1969-07-01), Pryor
patent: 3891302 (1975-06-01), Dabby et al.
patent: 4268116 (1981-05-01), Schmadel et al.
patent: 4286838 (1981-09-01), Huignard et al.
patent: 4295738 (1981-10-01), Meltz et al.
patent: 4400056 (1983-08-01), Cielo
S. K. Yao et al, Applied Optics, vol. 21, pp. 3059-3060, (1982).

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