Communications – electrical: acoustic wave systems and devices – Signal transducers – Underwater type
Patent
1985-04-19
1991-09-24
Steinberger, Brian S.
Communications, electrical: acoustic wave systems and devices
Signal transducers
Underwater type
367 79, 359135, 385 13, 385 42, H04R 102
Patent
active
050519654
ABSTRACT:
An acousto-optical seismic sensor array includes a distributed set of optical-fiber sensing coils. A light pulse is launched through the sensing coils in serial order. The light pulse is cumulatively data-modulated by the respective sensing coils and is returned as a time-division multiplexed pulse train. The pulse train is split into a first pulse train and a retarded second pulse train. The retardation time equals the travel-time delay of a light pulse between sensors. The retarded pulse train is compared with the first pulse train to determine the phase shift therebetween for consecutive pulses. The phase shift is an analog of the quantity being sensed.
REFERENCES:
patent: 3721954 (1973-03-01), Fontanel et al.
patent: 4302835 (1981-11-01), McMahon
patent: 4311391 (1982-01-01), Gilmour
patent: 4319186 (1982-03-01), Kingsley
patent: 4320475 (1982-03-01), Leclerc et al.
patent: 4375680 (1983-03-01), Cahill et al.
patent: 4436425 (1984-03-01), Cole
patent: 4486657 (1984-12-01), Bush
patent: 4547869 (1985-10-01), Savit
patent: 4589285 (1986-05-01), Savit
Danbridge et al., Phase Compensation in Interferometric Fiber-Optic Sensors, Naval Research Lab., Washington, D.C., Jun. 1982, vol. 7, #6, pp. 279-281.
Knox William A.
Steinberger Brian S.
Western Atlas International Inc.
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