Rotation angle detecting device

Details Rotation angle detecting device Rotation angle detecting device

1979-09-11

1982-12-14

Robinson, Thomas A.

Communications: electrical

Continuously variable indicating

With particular transmitter

34087001, 73DIG1, 73DIG4, 73579, 324 61R, 324 79D, G01R 2726, G01L 114, G08C 1910

Patent

active

043640460

ABSTRACT:
A rotation angle detecting device with a pair of variable capacitors which are formed with a rotating object, i.e. a movable electrode, and two stationary electrodes disposed around the rotating object, so that the capacitors operate in a differential mode. Alternatively, the central electrode can be stationary while the two outer electrodes move with the rotating object. The capacitors are combined with oscillators, so that a signal varying with the rotation of the rotating object is provided by obtaining the difference between the output frequencies of the oscillators.

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