Resonant fiber optic accelerometer with noise reduction using a

Details Resonant fiber optic accelerometer with noise reduction using a Resonant fiber optic accelerometer with noise reduction using a

1987-08-06

1990-02-13

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250231R, 250231P, H01J 516, G01D 534

Patent

active

049009184

ABSTRACT:
A pair of resonant optical cavities are used to measure shifts in length of a beam which deflects under acceleration. One end of each optical cavity is highly reflective and the other end partially reflective, thus permitting resonating light to exit the resonators. The light outputs of the two resonators is combined and the resultent beat frequency is used to detect deflections of the beam.

REFERENCES:
patent: 4454418 (1984-06-01), Walker
patent: 4613752 (1986-09-01), Davis

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