Optical sensor for determining changes in a dimension and/or a t

Details Optical sensor for determining changes in a dimension and/or a t Optical sensor for determining changes in a dimension and/or a t

1989-06-28

1991-04-23

Turner, Samuel

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

356345, 25022719, G01B 902

Patent

active

050095056

ABSTRACT:
A sensor comprises a resonator loop formed of polarization-maintaining, high birefringent optical fibre. Changes in the optical path lengths of each of the "fast" and "slow" optical paths in the loop are measured and processed to determine the strain and temperature change experienced by said fibre loop.

REFERENCES:
patent: 4758087 (1988-07-01), Hicks

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