This paper presents a method based on strain theory to test temperature stress of seamless rail. An easy-to-design interface circuit can measure very small-percentage capacitance variations of the differential capacitive sensor, which measure the strain of rail. The output voltage of the interface circuit is a linear function of capacitance change. The simulation results using SPICE show a good correspondence with the theoretical analysis. A sensitivity of 1.34x1012 V/F was given according to the simulation results.


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    Titel :

    Application of capacitive displacement sensor to testing temperature stress of seamless rail


    Beteiligte:
    Li, Xu (Autor:in) / Ding, Jiexiong (Autor:in)


    Erscheinungsdatum :

    2004


    Format / Umfang :

    5 Seiten, 10 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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