Capacitive gauge

Details Capacitive gauge Capacitive gauge

G - Physics

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G01B 7/30 (2006.01) G01D 5/241 (2006.01) G01H 11/06 (2006.01) G01L 1/14 (2006.01) G01L 9/00 (2006.01) H01G 5/00 (2006.01)

Patent

CA 1150527

ABSTRACT Capacitive gauge comprising at least one capacitor for connection into a bridge-circuit, said capacitor having at least one of its electrode support plates coated with an electrode overlay such that a system of sub-electrodes is formed, said sub- electrodes mutually separated at least by gaps but even if in geometrical respect the gaps are the only separation between sub-electrodes, yet they are connected in the bridge-circuit such that each sub-electrode in the activated state is surrounded by sub-electrodes acting as guard- elements. In combination with the other, opposite electrode support plate, whether or not subdivided in sub-electrodes, there may be formed a capacitor of the plate-type or of the cross-type. A capacitor thus formed can co- operate with a similar capacitor, said pair of capacitors offering the possibility to measure any deviation in the parallelity between two sur- faces or in the angular coincidence.

356399

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