Multiple-unit water depth sensor system

Details Multiple-unit water depth sensor system Multiple-unit water depth sensor system

1990-11-05

1991-10-01

Cuchlinski, Jr., William A.

Measuring and testing

Liquid level or depth gauge

Hydrostatic pressure type

73299, 114244, G01F 2314

Patent

active

050522221

ABSTRACT:
Each unit of an array of submerged oceanographic devices is provided with a depth gauge of the air bubbler type. A typical depth gauge consists of a tube or air line that has one end fluidly coupled to a manifold; the other end of the air line is open. The open end of the air line is secured adjacent a corresponding submerged device. A small flow of air is established from the manifold, through the air line, to bubble out the open end into the water. A pressure transducer is fluidly coupled to the air line and senses the backpressure due to the hydrostatic water head existing above the submerged device. Means are provided for inhibiting pneumatic cross feed in the manifold between the respective air lines.

REFERENCES:
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patent: 3613456 (1971-10-01), Hapfe et al.
patent: 3780581 (1973-12-01), Acre et al.
patent: 3987675 (1976-10-01), Harrison
patent: 4388827 (1983-06-01), Palmer et al.
patent: 4409833 (1983-10-01), Thomson et al.
patent: 4625548 (1986-12-01), Charter
patent: 4669309 (1987-06-01), Cornelius
patent: 4726315 (1988-02-01), Bell et al.
patent: 4908801 (1990-03-01), Bell et al.

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