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    Sound-resonance hydrogen sensor

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    Downloads: 541
    Date
    2003-06-01
    Author
    Dong, Shuxiang
    Bai, Feiming
    Li, Jiefang
    Viehland, Dwight D.
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    Abstract
    A hydrogen sensor is reported in which a small piezoelectric-sound-resonance-cavity (PSRC) is used as the sensing element. Detection utilizes sound resonance and acoustic property differences between H-2 and air as a sensing mechanism. Changes in H-2 concentration result in a shift of the sound-resonance state of the PSRC. Preliminary experiments have demonstrated a sensitivity limit of 8 ppm, a fast response time similar to1.5 second, and detection capabilities over a broad concentration range 10(-5) < n < 0.2. (C) 2003 American Institute of Physics.
    URI
    http://hdl.handle.net/10919/25275
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    • Scholarly Works, Materials Science and Engineering (MSE) [377]

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