Apparatus for measuring small changes in liquid level in a conta

Details Apparatus for measuring small changes in liquid level in a conta Apparatus for measuring small changes in liquid level in a conta

1988-12-09

1991-07-30

Will, Thomas B.

Measuring and testing

Liquid level or depth gauge

Weighing type

73 492T, 73317, 177210FP, G01F 2320, G01F 2332

Patent

active

050351419

ABSTRACT:
A liquid level sensing apparatus for detecting leaks in storage tanks. A buoyancy member is at least partially immersed in the liquid, suspended from a pivoted, counterbalanced, parallelogram support arrangement with a radio frequency target sensing element for electrical readout of displacement. Two such apparatus are incorporated in a system with a provision for measuring a portion of the liquid of the tank in isolation from the remainder, in order to provide for temperature compensation.

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patent: 4596952 (1986-06-01), Goff et al.
patent: 4848150 (1989-07-01), Baird et al.

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