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ANGLE DETECTION DEVICE

外国特許コード F150008364
掲載日 2015年6月29日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2013JP073686
国際公開番号 WO 2014038551
国際出願日 平成25年9月3日(2013.9.3)
国際公開日 平成26年3月13日(2014.3.13)
優先権データ
  • 特願2012-194561 (2012.9.4) JP
発明の名称 (英語) ANGLE DETECTION DEVICE
発明の概要(英語) Provided is an angle detection device that is configured by axially layering a rotor and a stator and maintains precise angle detection and accurately identifies a reference position that is the reference for a rotation angle. The angle detection device comprises: a rotor (5) wherein the magnetic permeability of a disc member containing a magnetic body has uniaxial anisotropy overall and the disc member is rotated about a central point (5a) in the plane of the disc, said rotor being provided with one reference detector (7) that is formed along the aforementioned anisotropy and has electromagnetic properties that differ from the electromagnetic properties of the disc member; and a stator (3) comprising magnetic excitation coils (4b, 4d) for generating a magnetic field, angle detecting coils (4a, 4c) for detecting the voltage corresponding to the rotation angle of the rotor (5) interlinked with the magnetic field that is magnetically excited with the magnetic excitation coil (4b, 4d), and a reference detecting coil (8) for detecting changes in the electromagnetic properties in the reference detector (7). The stator (3) is provided in the proximity of and facing the plate face of the disc member of the rotor (5) with substantially the same external shape. A plurality of fan-shaped magnetic excitation coils (4b, 4d) and angle detecting coils (4a, 4c) are provided alternately along the plate face of the stator (3), and the reference detecting coil (8) is provided in a corresponding location on the stator (3) corresponding to the disposition location of the reference detector (7) on the rotor (5).
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • KYUSHU UNIVERSITY
  • 発明者(英語)
  • SASADA ICHIRO
  • TANAKA KOHEI
国際特許分類(IPC)
指定国 National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IS JP KE KG KN KP KR KZ LA LC LK LR LS LT LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN TD TG
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