Communications: electrical – Continuously variable indicating – With particular transmitter
Patent
1993-05-28
1996-07-16
Coles, Sr., Edward L.
Communications: electrical
Continuously variable indicating
With particular transmitter
324658, 324686, G08C 1910, G08C 1916, G01R 2726
Patent
active
055371094
ABSTRACT:
A variable capacitance high precision, stable transducer for detecting position of a moving member including a first stationary conducting surface connected to a source, a second surface with at least two conducting, sensing regions and a third movable conductive surface located between the first surface and the second surface and connected to the moving member. The third surface is adapted to modulate charge transfered from the source surface before reaching the sensing regions. The difference of signals detected at the individual sensing regions is utilized to determine the position of the moving member and the sum of the signals is utilized to achieve appropriate correction in a feedback loop connected to the source.
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Coles Sr. Edward L.
General Scanning Inc.
Lee Thomas D.
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