Systems and methods for measuring an operating current and an operating voltage of an inductive proximity sensor in an improved manner. The proposed method is to measure and process the sensing parameters in a ratiometric way. A proximity sensing electronics unit receives an input signal from a proximity sensor that was derived by dividing the sensor's current by the sensor's supply voltage which produces that operating current. The division result, i.e., the quotient, is properly scaled to represent the sensor's state. The circuitry ratiometrically determines its operation status by eliminating common mode effects and variations of sensor state thresholds, allowing additional sensing parameters and health status to be measured and monitored without extending the operational range of the sensor.


    Access

    Download


    Export, share and cite



    Title :

    Method of ratiometric proximity sensing


    Contributors:
    SHI FONG (author)

    Publication date :

    2021-07-06


    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 / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen



    RATIOMETRIC PROXIMITY SENSING METHOD

    SHI FONG | European Patent Office | 2021

    Free access

    METHOD OF RATIOMETRIC PROXIMITY SENSING

    SHI FONG | European Patent Office | 2021

    Free access

    Method of Ratiometric Proximity Sensing

    SHI FONG | European Patent Office | 2021

    Free access

    Proximity Sensing

    Automotive engineering | 1983


    PROXIMITY SENSING SYSTEMS AND THEIR CONTROL

    AITIDIS ILIAS | European Patent Office | 2020

    Free access