Communications – electrical: acoustic wave systems and devices – Signal transducers – Underwater type
Patent
1983-10-31
1996-11-12
Jordan, Charles T.
Communications, electrical: acoustic wave systems and devices
Signal transducers
Underwater type
367154, 367169, 385 15, 385123, G02B 602, H04R 102, H04R 1500
Patent
active
055746993
ABSTRACT:
A small diameter towed acoustic line array comprising a plurality of miniature fiber optic lever hydrophones spaced at preselected locations along the array and held in place by fiber holders. The array hydrophones are enclosed within a tubular outer sheath which is filled with an acoustically transparent fluid. The hydrophones respond to either the pressure mode or the pressure gradient mode, each hydrophone further comprising at least one receiving and one transmitting optic fiber of the same diameter, a covering sheath, a clear elastomer and a small reflector. The information received is transmitted to and processed by a beamformer external to the array.
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Swenson et al., Design and Construction of Cables for Sensor Systems, Sea Technology, Nov. 1973, pp. 29-32.
Usher et al. The Design of Miniature Wideband Seismometers Geophy, J. R. As Soc. (1978 Dec.) No. 3, pp. 605-613.
Jordan Charles T.
Lall Prithvi C.
McGowan Michael J.
Oglo Michael F.
Steinberger Brian S.
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