Contact type rotary encoder employing electrically conductive ba

Details Contact type rotary encoder employing electrically conductive ba Contact type rotary encoder employing electrically conductive ba

1995-06-15

1997-11-11

Williams, Howard L.

Coded data generation or conversion

Digital pattern reading type converter

Brush and contacts or conductive pattern

H03M 122

Patent

active

056869118

ABSTRACT:
A contact type rotary encoder, comprising a printed wiring board having annular comb-shaped electrodes, and an arcuate electrode printed thereon, and a rotary member having three through-holes positioned around the center thereof at substantially equal angular intervals, and at different distances from the center of the rotary member. The contact type rotary encoder further comprises electrically conductive balls rotatably fitted in the through-holes and positioned to roll on the electrodes.

REFERENCES:
patent: 3781866 (1973-12-01), Kilby

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