Laser sound detector

Details Laser sound detector Laser sound detector

1983-11-09

1992-12-29

Moskowitz, Nelson

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

340557, 73657, H04R 2300, H04P 1302

Patent

active

051757133

ABSTRACT:
In order to sense the presence of sound in a remote underwater location, a neutrally buoyant reflector (20) is deployed underwater, and a laser (12) disposed at a remote location aims coherent light at the reflector (20). A detector (24) senses the coherent light reflected from the reflector (20) and compares it in phase with coherent light split from the outgoing beam. The system then provides an indication of the presence of sound by, for instance, amplifying the result of the phase detection to a speaker (26).

REFERENCES:
patent: 3278753 (1966-10-01), Pitts
patent: 3373401 (1968-03-01), Bayer
patent: 3474253 (1969-10-01), Kessler
patent: 3499110 (1969-12-01), Heckman
patent: 3604803 (1971-08-01), Kahn
patent: 3611277 (1971-10-01), Yoder
patent: 3669540 (1972-05-01), Rattman
patent: 3775735 (1973-04-01), Funk
patent: 4050819 (1977-09-01), Lichtman
patent: 4053233 (1977-10-01), Bien et al.
patent: 4123944 (1978-11-01), Mezrich et al.
patent: 4155065 (1979-05-01), Stimler
patent: 4203108 (1980-05-01), Eknayan
patent: 4284350 (1981-08-01), Coon et al.
patent: 4422167 (1983-12-01), Shajenko
patent: 4466738 (1984-08-01), Huang et al.

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