Fiber optic displacement sensor using fiber optic coil

Details Fiber optic displacement sensor using fiber optic coil Fiber optic displacement sensor using fiber optic coil

1991-08-14

1992-11-17

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

25022716, 250900, 73293, G01N 1506

Patent

active

051646056

ABSTRACT:
A fiber optic microbend sensor employs a resilient coil (12) with an optical fiber (10) positioned therein. The coil (12) has a predetermined length and pitch. An optical signal is applied to the optical fiber (10) with the coil (12) interrogating a parameter. Any movement of the coil (12) modulates the optical signal transmitted along the optical fiber (10). Detecting means (32) measures the modulations of the optical signal for characterization of the parameter.

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patent: 5038620 (1991-08-01), Rogers, Jr.

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