Low-noise towed acoustic linear antenna
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United States of America Patent
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May 27, 2003
Grant Date -
N/A
app pub date -
May 9, 2002
filing date -
Nov 10, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Towed low-noise linear acoustic antennas configured for seismic exploration. The jacket of this antenna is pierced with holes that allow seawater to enter the inside of the antenna. The hydrophones are isolated by enclosing them in polyurethane envelopes filled with oil or gel. Buoyancy is ensured by lightening the jacket with hollow inclusions formed from microspheres. Such a structure allows the output noise level of the hydrophones to be reduced by 15 dB.
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