ANGLE SENSOR

PROBLEM TO BE SOLVED: To provide an angle sensor of high accuracy at a low cost. SOLUTION: The angle sensor (10) includes: a rotor (22) having principal planes (22A and 22B) inclined relative to the axial direction of a rotary shaft (21) and rotating in conjunction with the rotation of the rotary sh...

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Bibliographic Details
Main Authors KOBAYASHI MASAYUKI, ZAIMA SEIGO
Format Patent
LanguageEnglish
Published 01.09.2011
Subjects
ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS
ELECTRICITY
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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Summary:PROBLEM TO BE SOLVED: To provide an angle sensor of high accuracy at a low cost. SOLUTION: The angle sensor (10) includes: a rotor (22) having principal planes (22A and 22B) inclined relative to the axial direction of a rotary shaft (21) and rotating in conjunction with the rotation of the rotary shaft (21) around its axis; a magnetic sensor (30) for detecting a magnetic field wherein magnetic field intensity and a magnetic field direction periodically change in concurrence with a face wobble of the rotor (22) arising during the rotation of the rotor (22) and outputting a detection signal including information on a rotation angle of the rotary shaft (21); and a signal processing circuit (40) for calculating the rotation angle of the rotary shaft (21) based on the detection signal. COPYRIGHT: (C)2011,JPO&INPIT
Bibliography:Application Number: JP20100032835