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    Non-vibrating Capacitance Probe For Wear Monitoring

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    5974869.pdf (414.2Kb)
    Date
    11/2/1999
    Author
    Danyluk, Steven
    Zharin, Anatoly
    Zanoria, Elmer
    Reid, Lennox
    Hamall, Kenneth M.
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    Abstract
    A non-vibrating capacitance probe for use as a non-contact sensor for tribological wear on a component. The device detects surface charge through temporal variation in the work function of a material. A reference electrode senses changing contact potential difference over the component surface, owing to compositional variation on the surface. Temporal variation in the contact potential difference induces a current through an electrical connection. This current is amplified and converted to a voltage signal by an electronic circuit with an operational amplifier.
    URI
    http://hdl.handle.net/1853/57316
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