Fiber optic hydrophone having rigid mandrel

Details Fiber optic hydrophone having rigid mandrel Fiber optic hydrophone having rigid mandrel

1996-03-06

1997-04-29

Healy, Brian

Optical waveguides

Optical waveguide sensor

385 13, 385100, 385115, 385116, 385123, 25022711, 25022714, 25022719, 356345, 356350, 367149, G02B 600, G01B 902, H04B 1300

Patent

active

056257244

ABSTRACT:
A fiber optic interferometric sensor for use in a hydrophone system at high pressures includes a reference fiber wrapped around a rigid inner cylinder. A solid layer of compliant material is applied over the reference fiber. The sensing arm of the interferometer is wound over the layer of material applied over the reference fiber. The outer material is sufficiently compliant to provide acoustic sensitivity comparable to that of air-backed hydrophones.

REFERENCES:
patent: 4525818 (1985-07-01), Cielo et al.
patent: 4799752 (1989-01-01), Carome
patent: 5253222 (1993-10-01), Danver et al.
patent: 5285424 (1994-02-01), Meyer
patent: 5317544 (1994-05-01), Maas et al.
patent: 5363342 (1994-11-01), Layton et al.
patent: 5394377 (1995-02-01), vonBieren
patent: 5475216 (1995-12-01), Danver et al.
patent: 5504720 (1996-04-01), Meyer et al.

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