Communications – electrical: acoustic wave systems and devices – Signal transducers – Underwater type
Patent
1985-03-04
1987-03-03
Jordan, Charles T.
Communications, electrical: acoustic wave systems and devices
Signal transducers
Underwater type
367106, 367151, 367171, 367174, 350 9629, 73657, H04R 102, H04R 1300, B01N 2141
Patent
active
046480820
ABSTRACT:
A pressure gradient sensor is disclosed for optically sensing the direction and magnitude of an acoustic wave propagating through a fluid. Each sensor consists generally of at least three fiber-optic displacement sensors disposed within a circular array oriented perpendicular to the longitudinal axis of a streamer. Each sensor phase-modulates a coherent light signal indicative of the water pressure sensed outside the streamer. The output of the signals include a component due to transient pressure waves and a component due to hydrostatic pressure differences between the sensors.
REFERENCES:
patent: 3831137 (1974-08-01), Cuomo
patent: 3952281 (1976-04-01), Parrack
patent: 4078223 (1978-03-01), Strange
patent: 4115753 (1978-09-01), Shajenko
patent: 4162397 (1979-07-01), Bucaro et al.
patent: 4286468 (1981-09-01), Altman
patent: 4313192 (1982-01-01), Nelson et al.
patent: 4320475 (1982-03-01), Leclerc et al.
patent: 4360247 (1982-11-01), Beasley
patent: 4380394 (1983-04-01), Stowe
patent: 4488040 (1984-12-01), Rowe
patent: 4518857 (1985-05-01), McMahon et al.
patent: 4545253 (1985-10-01), Avicola
patent: 4547668 (1985-10-01), Tsikos
patent: 4547869 (1985-10-01), Savit
patent: 4572949 (1986-02-01), Bowers et al.
patent: 4589286 (1986-05-01), Berthold, III
Spillman et al., Schlieran Multimode Fiber-Optic Hydrophone, Sperry Research, Mass., Apr. 1980, Applied Physics Letter, pp. 145-147.
Marciniak, Robert, Unidirectional Underwater-Sound Pressure-Gradient Transducer, IEEE Transactions on Sonics, vol. SV-18 #2, 1971, pp. 89-95.
Jordan Charles T.
Kane Barry C.
Lowe Robert E.
Steinberger Brian S.
Western Geophysical Company of America
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