Apparatus and method for detecting gas bubbles in water, and apparatus for handling an oceanographic device
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United States of America Patent
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Apr 21, 1987
Issued Date -
N/A
app pub date -
Dec 9, 1985
filing date -
Mar 14, 1983
priority date (Note) -
Expired
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Abstract
The invention provides a side scanning sonar apparatus for detecting gas bubbles in water. This apparatus transmits low frequency sonar signals horizontally through the water and detects the resultant echoes. The echoes due to bubble columns can be discriminated from those due to simple reflection from solid objects. The invention also provides a special handling apparatus to permit launching and recovery of a towed sonar apparatus in which the upper part of the fairing is relatively fragile.
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