Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Patent
1993-01-15
1995-11-14
Regan, Maura K.
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
340562, G01R 3102, G08B 1326
Patent
active
054670225
ABSTRACT:
A dielectric detecting system comprises: an earth electrode; a sensor electrode opposed to the earth electrode for constituting a first condenser therebetween whose electric capacitance varies in dependence on an existence of the dielectric; a medium electrode positioned between the earth electrode and the sensor electrode for constituting a second condenser between the medium electrode and the earth electrode and a third condenser between the medium electrode and the sensor electrode in such a manner that one of an electric capacitance of the second condenser and an electric capacitance of the third condenser serves for detecting an other dielectric; and an operational amplifier for equalizing electric potential of the medium electrode to that of the sensor electrode.
REFERENCES:
patent: 3723901 (1973-03-01), Nicolas
patent: 3727208 (1973-04-01), Anderson et al.
patent: 3898472 (1975-08-01), Long
patent: 4016490 (1977-04-01), Weckenmann
patent: 4067225 (1978-01-01), Dorman et al.
patent: 4320766 (1982-03-01), Alihanka et al.
patent: 4796013 (1989-01-01), Yasuda et al.
patent: 4887024 (1989-12-01), Sugiyama
patent: 5223796 (1993-07-01), Waldman et al.
Patent Abstracts of Japan, vol. 16, No. 15 p. 1298 (Jan. 14, 1992) & JP-3-233391.
Patent Abstracts of Japan, vol. 13, No. 353 p. 913 (Aug. 8, 1989) & JP-1-113692.
Patent Abstracts of Japan, vol. 11, No. 366 p. 641 (Nov. 28, 1987) & JP-62-138780.
Patent Abstracts of Japan, vol. 12, No. 93 (Mar. 20, 1988) & JP-62-225985.
Aoki Kouji
Yokochi Masaru
Aisin Seiki Kabushiki Kaisha
Regan Maura K.
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