Automatic climate control could be improved by measuring air temperature ultrasonically. Thermal comfort correlates better with bulk air temperature than with the temperature measured by the in-car sensor. The time of flight of an ultrasonic pulse through the air gives the bulk air temperature. In a proof-of-concept experiment, it is accurate to ± 0.5 °C from -40 to+60 °C. Two operational modes are demonstrated: pulse-echo in which a single transducer creates a pulse and detects its return from a reflector, and single-pass in which a source transducer creates a pulse that travels directly to a separate transducer.


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    Titel :

    Ultrasonic Air Temperature Sensing for Automatic Climate Control - Sensor Development


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    SAE 2003 World Congress & Exhibition ; 2003



    Erscheinungsdatum :

    2003-03-03




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Ultrasonic Air Temperature Sensing for Automatic Climate Control - Sensor Development

    Han, T. / Lambert, D. K. / Oberdier, L. M. et al. | British Library Conference Proceedings | 2003


    Ultrasonic air temperature sensing for automatic climate control - sensor development

    Han,T. / Lambert,D.K. / Oberdier,L.M. et al. | Kraftfahrwesen | 2003


    Ultrasonic Air Temperature Sensing for Automatic Climate Control - Vehicle Test

    Partin, Dale L. / Lambert, David K. / Sultan, Michel F. et al. | SAE Technical Papers | 2004


    Ultrasonic Air Temperature Sensing for Automatic Climate Control - Vehicle Test

    Han, T. / Lambert, D. K. / Partin, D. L. et al. | British Library Conference Proceedings | 2004


    Ultrasonic air temperature sensing for automatic climate control - vehicle test

    Han,T. / Lambert,D.K. / Partin,D.L. et al. | Kraftfahrwesen | 2004