Detector for locating the interfacial boundary level between two

Details Detector for locating the interfacial boundary level between two Detector for locating the interfacial boundary level between two

1978-04-06

1980-06-24

Rolinec, Rudolph V.

Electricity: measuring and testing

Conductor identification or location

Inaccessible

73304C, 324 61P, G01R 2726, G01F 2326

Patent

active

042097401

ABSTRACT:
The level of the interfacial boundary between two liquids having different dielectric constants is located by means of a detector in which two parallel sectional members constitute external capacitor plates supported by a metallic base plate and in which small metallic plates encased within an electrically insulated central upright member constitute central capacitor plates. The assembly thus forms a plurality of capacitors, the plates of which are immersed in at least one of the liquids. Each capacitor forms part of an oscillating circuit connected to electronic means for effecting a comparison between the oscillation frequency and a reference frequency.

REFERENCES:
patent: 2573172 (1951-10-01), Ennis et al.
patent: 2772393 (1956-11-01), Davis
patent: 2963908 (1960-12-01), Shawhan
patent: 3012193 (1961-12-01), Breen
patent: 3133437 (1964-05-01), Remke et al.
patent: 3181557 (1965-05-01), Lannan, Jr.
patent: 3189268 (1965-06-01), Nilsson
patent: 3297941 (1967-01-01), Wolfendale
patent: 3777257 (1973-12-01), Geisselmann
patent: 3815020 (1974-06-01), Mayer
patent: 4048844 (1977-09-01), Dunikowski et al.

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