A rod-shaped magnet (4) is mounted on a rotating unit (2). The rod-shaped magnet has end surfaces (4d) which are oriented in a rotating direction and are magnetized to different magnetic poles. An angle detecting unit (10) including magnetoresistive elements (Rc1, Rc2, Rs1, Rs2) is disposed so as to be offset in a radial direction of a revolution path of the magnet from the revolution path and is configured to detect a change in angle of rotation of the rotating unit by detecting a leakage magnetic field in the vicinity of a side surface (4c) of the magnet. Two position detecting units (20A, 20B) each include magnetoresistive elements (Rx) and are configured to detect a change in orientation of a magnetic field in the direction of a tangent to the revolution path when facing the rod-shaped magnet and produce a switch output.


    Access

    Download


    Export, share and cite



    Title :

    Rotation detector


    Additional title:

    Rotationsdetektor
    Détecteur de rotation


    Contributors:

    Publication date :

    2016-01-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE , Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES



    ROTATION DETECTOR

    MOCHIDA TEPPEI | European Patent Office | 2019

    Free access

    ROTATION DETECTOR

    MOCHIDA TEPPEI / ISHIKURE NOBUYUKI | European Patent Office | 2019

    Free access

    ROTATION DETECTOR

    TAKAHASHI TORU / NISHIKAWA KENTARO / FUKUSHIMA YASUYUKI et al. | European Patent Office | 2016

    Free access

    ROTATION DETECTOR

    FUJITA TOSHIHIRO / OZAWA TAKAHARU / MIYAJI SHUHEI et al. | European Patent Office | 2018

    Free access

    Rotation detector

    ONODERA TAKASHI / NAKAMURA TOKUO / NOGUCHI TAKAFUMI | European Patent Office | 2016

    Free access