A potentially low-cost, frequency-output vibrating-diaphragm absolute pressure sensor has been developed which shows promise as an automotive manifold absolute pressure (MAP) sensor. The sensor output is stable within ± 1% of value from 25°C to 50°C and within ± 3% of value from -40°C to +80°C. It is insensitive to humidity and gasoline vapor variations. It requires no reference pressure and is therefore immune to errors due to a leaky reference chamber or material creep associated with a pressure differential.


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    Title :

    Ported-Enclosure Vibrating-Diaphragm Pressure Sensor


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE International Congress and Exposition ; 1981



    Publication date :

    1981-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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