Acoustic impedance system for liquid boundary level detection

Details Acoustic impedance system for liquid boundary level detection Acoustic impedance system for liquid boundary level detection

1987-05-05

1988-12-13

Levy, Stewart J.

Measuring and testing

Liquid level or depth gauge

367908, G01F 2300

Patent

active

047901837

ABSTRACT:
A liquid boundary level detector employing an open-ended conduit which directs pressure waves toward a liquid boundary layer. The conduit is moved from a starting position toward the liquid boundary and, upon contact with the boundary, there is a change in acoustic impedance within the conduit. This change is monitored and a signal is generated indicative of such contact. Once the initial liquid boundary position is determined, that may become the reference position for subsequent liquid boundary measurements or motions.

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