Capacitance type rotation angle sensor

Details Capacitance type rotation angle sensor Capacitance type rotation angle sensor

1996-02-22

1997-08-12

Hofsass, Jeffery

Communications: electrical

Continuously variable indicating

With particular transmitter

324660, 3612981, G08C 1910

Patent

active

056570066

ABSTRACT:
A movable electrode is positioned between two fixed electrodes. The movable electrode is rotated in correspondence to a rotation angle to be detected. The fixed electrodes and the movable electrode are split into first split electrode members and second split electrode members not conducting with each other respectively. The first fixed split electrode members are electrically connected with a first external terminal, and the second fixed split electrode members are electrically connected with a second external terminal. Thus, electrostatic capacitances which are derived from the external terminals are varied by rotation of the movable electrode. In this sensor, the varied electrostatic capacitances can be derived through conductive paths comprising no sliding contact portions, while a variable range of the electrostatic capacitances can be increased.

REFERENCES:
patent: 4092579 (1978-05-01), Weit

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