Capacitor type sensor for detecting displacement or load

Details Capacitor type sensor for detecting displacement or load Capacitor type sensor for detecting displacement or load

1981-04-17

1983-05-31

Goldberg, Elliot A.

Electricity: electrical systems and devices

Electrostatic capacitors

Variable

7386264, 361278, 361290, 361291, 361400, H01G 700

Patent

active

043863868

ABSTRACT:
A capacitor type displacement or load sensor includes a first electrode constituted by an electrically conductive coiled spring capable of expansion and contraction and a second electrode positioned to face the first electrode without making contact therewith. The second electrode is constituted by an electrically conductive coiled spring or a cylindrical electric conductor. The sensor is constructed such that capacitance between the first and second electrodes varies with a change of a gap between the first and second electrodes or an opposing area of the first and second electrodes caused by the relative displacement occurring therebetween.

REFERENCES:
patent: 1740159 (1929-12-01), Dublier
patent: 1871048 (1932-08-01), Dublier
patent: 3703300 (1972-11-01), Gillund

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