G - Physics – 01 – F
Patent
G - Physics
01
F
340/141, 73/69
G01F 23/26 (2006.01) G01N 35/10 (2006.01)
Patent
CA 2034549
18 IP-0791 TITLE CAPACITIVE LIQUID LEVEL SENSOR ABSTRACT A capacitance liquid level sensor uses an oscillator and sweeps the oscillator frequency at an ultrasonic rate thereby spreading the frequency spectrum and reducing interference from external radio transmitters and interference to local radio receivers. 18
Davis James E.
E.i. Du Pont de Nemours And Company
Sim & Mcburney
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