Spiral configuration of electrodes and dielectric material for s

Details Spiral configuration of electrodes and dielectric material for s Spiral configuration of electrodes and dielectric material for s

1987-12-31

1989-08-15

Griffin, Donald A.

Electricity: electrical systems and devices

Electrostatic capacitors

Variable

733365, H01G 700

Patent

active

048580635

ABSTRACT:
A reliable moisture-indicating capactive sensor is provided with wire electrodes at least one of which includes a coating of moisture-absorbing dielectric material by spirally twisting the wire electrodes about each other, thereby establishing a pair of electrodes in contact with opposite surfaces of a layer of dielectric material, and assuring consistent contact of each electrode with the dielectric material despite changes in environmental conditions.

REFERENCES:
patent: 336773 (1886-02-01), Weil
patent: 3105214 (1963-09-01), Blythe et al.
patent: 3683243 (1972-08-01), Rockliff
patent: 4083765 (1978-04-01), Lawson
patent: 4140990 (1979-02-01), Katz de Warren
patent: 4143177 (1979-03-01), Kovac et al.
patent: 4549134 (1985-10-01), Weiss

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