Communications – electrical: acoustic wave systems and devices – Signal transducers – Underwater type
Patent
1982-09-27
1989-01-17
Steinberger, Brian S.
Communications, electrical: acoustic wave systems and devices
Signal transducers
Underwater type
350 9629, 356345, H04R 2300
Patent
active
047992026
ABSTRACT:
A cylindrical interferometric hydrophone having an axial hollow free-flooded volume includes an outer fiber wrap for a sensor leg and an inner fiber wrap for a reference leg. Both inner and outer fiber wraps are wound on elastomers and exposed to seawater for sensing acoustic signals. In operation an increased pressure shortens the outer wrap and lengthens the inner wrap. This use of both the sensor and the reference legs to detect signals gives increased sensitivity.
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Lall Prithvi C.
McGill Arthur A.
McGowan Michael J.
Steinberger Brian S.
The United States of America as represented by the Secretary of
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