Measuring and testing – Liquid level or depth gauge – Immersible electrode type
Patent
1980-05-14
1983-06-21
Kreitman, Stephen A.
Measuring and testing
Liquid level or depth gauge
Immersible electrode type
G01F 2326
Patent
active
043888283
ABSTRACT:
The present invention is part of a liquid gaging system and comprises an apparatus for measuring and storing a value related to an unwetted capacitance of a capacitive sensor, the stored value being available for use in liquid measurements. Included is a capacitive sensor for mounting in a tank, the sensor having an unwetted capacitance variable in dependence on manufacturing tolerances. The sensor capacitance is also related to stray capacitance in the system. The invention further includes apparatus for measuring the sensor unwetted capacitance including the sensor capacitance contributed by the stray capacitance in the system. The apparatus for measuring is connected to the sensor. The invention also comprises apparatus for storing a value related to the sensor unwetted capacitance measured by the apparatus for measuring, the apparatus for storing being connected to the apparatus for measuring.
REFERENCES:
patent: 2460773 (1949-02-01), Stimson
patent: 2519668 (1950-08-01), Konigsberg
patent: 2601176 (1952-06-01), Smith
patent: 2968181 (1961-01-01), Mittelman
patent: 3361897 (1968-01-01), Rush
patent: 3463980 (1969-08-01), Cohn et al.
patent: 3523186 (1970-08-01), Cohn et al.
patent: 3797311 (1974-03-01), Blanchard et al.
patent: 3830090 (1974-08-01), Hersch et al.
patent: 3935741 (1976-02-01), Zinsmeyer et al.
patent: 4055995 (1977-11-01), Armstrong et al.
patent: 4079627 (1978-03-01), Gundlach
patent: 4083248 (1978-04-01), Maier
patent: 4090408 (1978-05-01), Hedrick
patent: 4114442 (1978-09-01), Pratt
patent: 4118772 (1978-10-01), Takada
patent: 4164146 (1979-08-01), DuVall et al.
patent: 4173893 (1979-11-01), Hedrick
patent: 4181958 (1980-01-01), Juengel et al.
patent: 4212064 (1980-07-01), Forsythe et al.
patent: 4215404 (1980-07-01), Bukhiyarov et al.
patent: 4229798 (1980-10-01), Rosie et al.
patent: 4258422 (1981-03-01), Dougherty et al.
patent: 4263652 (1981-04-01), Henrich
patent: 4266144 (1981-05-01), Bristol
patent: 4275382 (1981-06-01), Jannotta
Honeywell Inc.
Joike Trevor B.
Kreitman Stephen A.
Sumner John P.
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