An inductive ABS speed and position sensor has been realized, based on an arrangement of batch-fabricated microcoils in a differential transformer configuration. The position of a metallic toothed wheel is measured with a precision of +/- 2 micron in a 0 to 3.2 kHz bandwidth and at a distance of 0 to 2 mm, with a transformer power consumption of less then 50 mW. Both the differential sensor approach and the ratiometric analysis allow for position detection that is insensitive to target speed, target distance and sensor temperature. The AC excitation allows the frequency to be adapted to the target material and to measure down to zero speed.


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    Titel :

    Microcoil speed and position sensor for automotive applications


    Weitere Titelangaben:

    Ein Mikrospulensensor für Geschwindigkeits- und Positionsmessungen in Kraftfahrzeugen


    Beteiligte:
    Coulon, Y. de (Autor:in) / Bourgeois, C. (Autor:in) / Lambilly, H. de (Autor:in) / Bergqvist, J. (Autor:in) / Rudolf, F. (Autor:in) / Roze, P. (Autor:in) / Biton, P. (Autor:in)


    Erscheinungsdatum :

    1996


    Format / Umfang :

    6 Seiten, 9 Bilder, 3 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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