A capacitance sensor includes a switch control unit that performs a first switching process that turns on a first switch and then repeatedly performs a second switching process that complementarily switches off and on second and third switches that are respectively connected to second and third capacitors; an obtaining unit that calculates, as a sensor output value, a number of times the second switching process is repeated until a magnitude relationship reverses between an intermediate potential and a reference potential; a calculation unit that calculates a sensor output corrected value obtained by correcting the sensor output value such that a resolution becomes uniform; and a determination unit that determines whether a detection target exists from a magnitude relationship between a sensor output difference value and a determination threshold value.


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    Titel :

    Capacitance sensor


    Beteiligte:
    KODA SATOSHI (Autor:in)

    Erscheinungsdatum :

    2023-07-11


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE , Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / E05F DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION , Vorrichtungen zum Bewegen der Flügel in die Offen- oder Schließstellung / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / H03K PULSE TECHNIQUE , Impulstechnik



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