Apparatus and method for detecting gas bubbles in water, and app

Details Apparatus and method for detecting gas bubbles in water, and app Apparatus and method for detecting gas bubbles in water, and app

1983-03-14

1986-02-25

Kreitman, Stephen A.

Measuring and testing

Gas content of a liquid or a solid

By vibration

73 405A, G01N 2902

Patent

active

045719845

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 relative fragile.

REFERENCES:
patent: 3005973 (1961-10-01), Kietz
patent: 3214728 (1965-10-01), Higgins
patent: 3541717 (1970-11-01), Grayson
patent: 3713083 (1973-01-01), Hunnicutt, Jr.
patent: 3992923 (1976-11-01), Roberts
patent: 4001764 (1977-01-01), Holland et al.
patent: 4063212 (1977-12-01), Sublett
patent: 4130010 (1978-12-01), Wonn
patent: 4305140 (1981-12-01), Massa

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