Liquid level sensing devices

Details Liquid level sensing devices Liquid level sensing devices

1978-09-06

1980-07-22

Yasich, Daniel M.

Measuring and testing

Liquid level or depth gauge

340621, G01F 2328, G01S 380

Patent

active

042133378

ABSTRACT:
A liquid level sensing device consists of an elongate member in which flexure waves are induced. By partially submerging the elongate member in a fluid the depth of immersion can be determined from characteristics of the flexure waves. In one mode of operation the transit time for a flexure wave to travel along the elongate member is measured, and in another mode the nature of resonant modes in the flexure wave is determined.

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patent: 4035762 (1977-07-01), Chamuel
patent: 4063457 (1977-12-01), Zekulin et al.
"DPM 380 Digital Phasemeter", Feedback Instruments Limited, (Leaflet D380).

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