Measuring and testing – Liquid level or depth gauge – Immersible electrode type
Patent
1978-12-08
1980-01-22
Woodiel, Donald O.
Measuring and testing
Liquid level or depth gauge
Immersible electrode type
361284, G01F 2326
Patent
active
041843690
ABSTRACT:
A capacitive sensing element for use in a liquid level measuring apparatus, wherein the capacitive sensing element is the oscillation determining element of an oscillator, the sensing element including a plurality of elongate electrodes embedded in an insulating material, and wherein calibration of the sensing element for different containers is obtained by piercing the element and electrodes to provide electrodes of different lengths.
REFERENCES:
patent: 2544012 (1951-03-01), Edelman
patent: 3037165 (1962-05-01), Kerr
patent: 3433072 (1969-03-01), Virtanen et al.
patent: 4142415 (1979-03-01), Jung et al.
Jung Wilhelm
Stark Wolfgang
VDO Adolf Schindling AG
Woodiel Donald O.
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