Capacitance probe sensor device

Details Capacitance probe sensor device Capacitance probe sensor device

1980-12-24

1983-06-28

Yasich, Daniel M.

Measuring and testing

Volume or rate of flow

Using differential pressure

73304C, 324 61P, 361285, G01F 134, G01F 100

Patent

active

043899005

ABSTRACT:
A capacitance probe sensor device is disclosed which has a probe formed of KYNAR insulated wire spaced from an uninsulated metallic ground electrode. An oscillator and associated capacitance-resistance network connected to the probe serve to provide a linear output voltage proportional to the change of capacitance between the insulated wire and the ground electrode. The capacitance probe sensor device can be used in a number of applications. They include the measurement of water level, the determination of a liquid's flow rate, and the moisture content of soil.

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