Phase track system for monitoring fluid material within a contai

Details Phase track system for monitoring fluid material within a contai Phase track system for monitoring fluid material within a contai

1989-09-21

1991-02-12

Cuchlinski, Jr., William A.

Measuring and testing

Liquid level or depth gauge

73149, 367908, G01F 2328

Patent

active

049914332

ABSTRACT:
Acoustical energy is directed into a vessel containing an unknown volume of fluid at a frequency at or near the Helmholtz resonance of the vessel. The signal generated within the vessel is analyzed to compare its phase relationship to an electrical reference input signal. The volume of fluid in the vessel may then be determined from said phase relationship, such as by previous empirical calibration of the vessel.

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