ELECTRONIC SENSING AND CONTROL CIRCUIT

ELECTRONIC SENSING AND CONTROL CIRCUIT An electronic sensing and control circuit is provided which includes a sensing plate and means for charging the sensing plate to a value dependent upon the capacitance existing between the sensing plate and a remote object. The capacitance between the sensing p...

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1. Verfasser: TUTTLE, WILLIAM C
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description ELECTRONIC SENSING AND CONTROL CIRCUIT An electronic sensing and control circuit is provided which includes a sensing plate and means for charging the sensing plate to a value dependent upon the capacitance existing between the sensing plate and a remote object. The capacitance between the sensing plate and the object varies with the distance of the object relative to the sensing plate. The sensing plate is periodically discharged and charged producing a useful current proportional to the capacitance and varying with the distance between the sensing plate and the object. Two sensing plates are used to provide first and second signals. The first and second signals are subtracted to derive a lateral displacement signal and added to derive a distance signal. The lateral displacement signal and the distance signal can be used to control the forward, reverse and turning motion of a motorized wheelchair.
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The capacitance between the sensing plate and the object varies with the distance of the object relative to the sensing plate. The sensing plate is periodically discharged and charged producing a useful current proportional to the capacitance and varying with the distance between the sensing plate and the object. Two sensing plates are used to provide first and second signals. The first and second signals are subtracted to derive a lateral displacement signal and added to derive a distance signal. 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language eng ; fre
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subjects CHAIRS FOR DENTISTRY
ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES
ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL
FUNERAL DEVICES
HUMAN NECESSITIES
HYGIENE
MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES
MEDICAL OR VETERINARY SCIENCE
OPERATING TABLES OR CHAIRS
PERFORMING OPERATIONS
TRANSPORT OR ACCOMODATION FOR PATIENTS
TRANSPORTING
VEHICLES IN GENERAL
title ELECTRONIC SENSING AND CONTROL CIRCUIT
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