SENSOR DEVICE FOR DETERMINING THE DEVIATION OF A HEAD SUPPORT POSITION FROM A TARGET POSITION

Integrated into a head rest (1), a capacitive approximation sensor (11) has two transmitting electrodes (12,13) with a vertical clearance from each other and a common receiving electrode (14). A sensor control unit (15) triggers the two transmitting electrodes into transmitting electrical alternatin...

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Hauptverfasser: WÜRSTLEIN, HOLGER, HOFMANN, TOBIAS
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creator WÜRSTLEIN, HOLGER
HOFMANN, TOBIAS
description Integrated into a head rest (1), a capacitive approximation sensor (11) has two transmitting electrodes (12,13) with a vertical clearance from each other and a common receiving electrode (14). A sensor control unit (15) triggers the two transmitting electrodes into transmitting electrical alternating fields (F1,F2) and to use electrical receiving signals (E1,E2) from the receiving electrode with information about capacitances (C1,C2) formed between each transmitting electrode so as to determine measurements (delta x,delta z) for vertical and horizontal variations in the position of a head-rest.
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language eng ; fre ; ger
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subjects DETECTING MASSES OR OBJECTS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASURING
MEASURING ANGLES
MEASURING AREAS
MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS
PERFORMING OPERATIONS
PHYSICS
SEATS SPECIALLY ADAPTED FOR VEHICLES
TESTING
TRANSPORTING
VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDEDFOR
VEHICLES IN GENERAL
title SENSOR DEVICE FOR DETERMINING THE DEVIATION OF A HEAD SUPPORT POSITION FROM A TARGET POSITION
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