A small, low-cost piezoresistive acceleration sensor suitable for automotive applications such as advanced breaking control and suspension control systems has been developed. A piezoresistive semiconductor sensor has such advantages as high output linearity, long-term output repeatability and DC response a piezoelectric sensor doesn't feature. One drawback, however, is that piezoresistive characteristics are quite temperature sensitive: Such that temperature dependence of DC offset and span have to be compensated with a certain electrical circuit. With 1 mV/Vs/G, the low sensitivity of the acceleration sensor (Vs:bridge voltage, G:gravitational acceleration), the temperature shift of DC offset represented in terms of the sensitivity becomes relatively high. For this reason, we have used a new temperature compensation circuit including a voltage supply sensitive to temperature and a compensation resistor, achieving about 3 % offset temperature error per 1.5 G full scale in the operating temperature range from -30 Cel to 85 Cel.


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    Titel :

    Piezoresistive acceleration sensor for automotive applications


    Weitere Titelangaben:

    Piezoresistiver Beschleunigungssensor für Anwendungen in Kraftfahrzeugen


    Beteiligte:
    Tsugai, M. (Autor:in) / Bessho, M. (Autor:in) / Araki, T. (Autor:in) / Onishi, M. (Autor:in) / Sesekura, T. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1992


    Format / Umfang :

    6 Seiten, 9 Bilder, 2 Tabellen, 7 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Piezoresistive Acceleration Sensor for Automotive Applications

    Tsugai, Masahiro / Onishi, Masayoshi / Bessho, Mikio et al. | SAE Technical Papers | 1992


    Piezoresistive acceleration sensor for automotive applications

    Tsugai,M. / Bessho,M. / Araki,T. et al. | Kraftfahrwesen | 1992


    Tri-Axial Piezoresistive Acceleration Sensor for Automotive Applications

    Kobayashi, Tadashi / Kunimi, Takeshi | SAE Technical Papers | 1993


    Tri-axial piezoresistive acceleration sensor for automotive applications

    Kunimi,T. / Kobayashi,T. / Akebono Brake Industry,JP | Kraftfahrwesen | 1993


    Piezoresistive silicon accelerometer for automotive applications

    Seidel, H. / Fritsch, U. / Gottinger, R. et al. | Tema Archiv | 1993