CAPACITANCE DETECTION TYPE ROTATION SENSOR

PROBLEM TO BE SOLVED: To provide a capacitance detection type rotation sensor that can be easily miniaturized and has little constraint to its mounting position. SOLUTION: The capacitance detection type rotation sensor comprises a sensor rotor 2 having an electric conductor section 2a and a dielectr...

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1. Verfasser:	WAKAMATSU HIROTAKA
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS MEASURING MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS TARIFF METERING APPARATUS TESTING
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creator	WAKAMATSU HIROTAKA
description	PROBLEM TO BE SOLVED: To provide a capacitance detection type rotation sensor that can be easily miniaturized and has little constraint to its mounting position. SOLUTION: The capacitance detection type rotation sensor comprises a sensor rotor 2 having an electric conductor section 2a and a dielectric section 2b, and a pair of fixed electrodes 3 and 4 arranged in the radial direction (r direction) so as to face the plane having the dielectric section 2b of the sensor rotor 2. A CV conversion circuit 5 detects the composite capacitance of the capacitance between the fixed electrode 3 and the electric conductor section 2a and the capacitance between the fixed electrode 4 and the electric conductor section 2a. The thickness of the dielectric section 2b is set so that the capacitance during rotation varies periodically. COPYRIGHT: (C)2008,JPO&INPIT
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SOLUTION: The capacitance detection type rotation sensor comprises a sensor rotor 2 having an electric conductor section 2a and a dielectric section 2b, and a pair of fixed electrodes 3 and 4 arranged in the radial direction (r direction) so as to face the plane having the dielectric section 2b of the sensor rotor 2. A CV conversion circuit 5 detects the composite capacitance of the capacitance between the fixed electrode 3 and the electric conductor section 2a and the capacitance between the fixed electrode 4 and the electric conductor section 2a. The thickness of the dielectric section 2b is set so that the capacitance during rotation varies periodically. 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SOLUTION: The capacitance detection type rotation sensor comprises a sensor rotor 2 having an electric conductor section 2a and a dielectric section 2b, and a pair of fixed electrodes 3 and 4 arranged in the radial direction (r direction) so as to face the plane having the dielectric section 2b of the sensor rotor 2. A CV conversion circuit 5 detects the composite capacitance of the capacitance between the fixed electrode 3 and the electric conductor section 2a and the capacitance between the fixed electrode 4 and the electric conductor section 2a. The thickness of the dielectric section 2b is set so that the capacitance during rotation varies periodically. COPYRIGHT: (C)2008,JPO&INPIT</abstract><oa>free_for_read</oa></addata></record>
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subjects	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS MEASURING MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS TARIFF METERING APPARATUS TESTING
title	CAPACITANCE DETECTION TYPE ROTATION SENSOR
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