Method and means for sensing a change in capacitance by a comput

Details Method and means for sensing a change in capacitance by a comput Method and means for sensing a change in capacitance by a comput

1990-05-17

1992-09-08

Lall, Parshotam S.

Boots, shoes, and leggings

324678, G01R 2700

Patent

active

051464128

ABSTRACT:
A method and means for using a computer for sensing a capacitive change in a sensor having a capacitive impedance component. The sensor is connected between the input and output ports of a computer which produces a periodic waveform at the output port and monitors the capacitor's discharge or charge time at its input port. The monitored times are compared to previous monitored times wherein a change in time indicates a change in capacitance.

REFERENCES:
patent: 4743837 (1988-05-01), Herzog
patent: 4829458 (1989-05-01), Russo et al.
patent: 4841458 (1989-06-01), Levine et al.
patent: 4864513 (1989-09-01), Levine et al.

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