A family of active thermocouples was developed for high temperature exhaust gas temperature measurement. A combination of thermocouple material improvements, package design and integral signal conditioning vastly improve accuracy and durability performance for diesel emission control. Sensors were developed to withstand temperatures from -40 to +1200°C and vibration levels of 30 GRMS with immersion lengths over 85mm. Signal conditioning supplies an interface to engine control units and provides an accuracy of up to ±1% from 500 to 1000°C, depending on output type and sensor construction. Results are presented for accuracy, vibration, high temperature stability and time response. System accuracy factors are discussed for various output types.


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    Titel :

    The Development of Active Thermocouples for Diesel Exhaust Temperature Measurement


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    Powertrains, Fuels and Lubricants Meeting ; 2008



    Erscheinungsdatum :

    2008-10-06




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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