Reduced power displacement converting device using variable capa

Details Reduced power displacement converting device using variable capa Reduced power displacement converting device using variable capa

1985-02-27

1987-01-13

Wong, Peter S.

Electricity: power supply or regulation systems

External or operator controlled

Using a three or more terminal semiconductive device as the...

324 60R, 73718, 73724, G01L 912

Patent

active

046367128

ABSTRACT:
A displacement converting device converts mechanical movement of a sensor or actuator mechanisms to a corresponding electrical signal by varying the electrostatic capacitance of one or a combination of capacitors in accordance with the mechanical movement. Current generating circuits produce currents having magnitudes corresponding to the capacitance values. An operational amplifier generates an output signal having a value corresponding to the mechanical movement by comparing the magnitudes of the generated currents.

REFERENCES:
patent: 4272822 (1981-06-01), Yasuhara et al.
patent: 4357834 (1982-11-01), Kimura
patent: 4387601 (1983-06-01), Azegami
patent: 4389646 (1983-06-01), Tago

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