Capacitive pressure transducer with improved electrode

Details Capacitive pressure transducer with improved electrode Capacitive pressure transducer with improved electrode

1976-12-02

1979-06-12

Goldberg, E. A.

Electricity: electrical systems and devices

Electrostatic capacitors

Variable

73718, 361278, H01G 516

Patent

active

041582179

ABSTRACT:
An electrode for use in capacitive pressure transducers of the type including either a single diaphragm electrode and a conductive reference plate separated by a gap or two diaphragm electrodes separated by a gap. The electrode comprises a conductive area having a plurality of nonconductive areas in the conductive area arranged and configured such that the capacitive fringe effects of the nonconductive areas substantially reduces the nonlinear component of the variation in the capacitance of the capacitive pressure transducer as a function of pressure.

REFERENCES:
patent: RE19688 (1935-09-01), Freese
patent: 1753193 (1930-04-01), Bennett
patent: 1904422 (1933-04-01), Dybvig
patent: 1924366 (1933-08-01), Marstezler
patent: 2632791 (1953-03-01), Side
patent: 3219948 (1965-11-01), Williams
patent: 3398338 (1968-08-01), Dornfeld
patent: 3814998 (1974-06-01), Thoma
patent: 4064550 (1977-12-01), Dias
Lion Instrumentation in Scientific Research, McGraw Hill, N.Y. 1959, pp. 66-72.

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