Method for measuring the depth of a liquid body

Details Method for measuring the depth of a liquid body Method for measuring the depth of a liquid body

1980-12-04

1983-06-21

Stephan, Steven L.

Measuring and testing

Liquid level or depth gauge

Hydrostatic pressure type

G01F 2314

Patent

active

043888275

ABSTRACT:
A method for detecting the depth of a liquid body. A source of pressurized gas is engaged to a weighted sensor by means of a single elongated tube. The sensor is positioned at the bottom of the liquid body. A solenoid valve, which regulates the flow of gas in the tube, is periodically opened to provide a pulse of overpressure which exits the underside of the sensor in a pressure-equalizing stream of bubbles. After a brief, predetermined settling time, a reliable pressure/depth indication is obtained from a transducer in communication with the single tube.

REFERENCES:
patent: 3475959 (1969-11-01), Glassey
patent: 3587316 (1971-06-01), Kapteyn
patent: 3727459 (1973-04-01), Buettner
patent: 3965740 (1976-06-01), Martig, Jr.
patent: 4006636 (1977-02-01), Holmen
patent: 4034607 (1977-07-01), Martig, Jr.
patent: 4058011 (1977-11-01), Martig, Jr.
patent: 4083246 (1978-04-01), Marsh
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