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Lowering the sensory threshold and enhancing the responsivity of biomimetic hair flow sensors by electrostatic spring softening

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    Abstract

    We report improvements in detection limit and responsivity of biomimetic hair flow sensors by electrostatic spring-softening (ESS). Applying a DC voltage to our capacitive flow sensors results in a reduced sensory threshold, which gives an improvement for the flow detection limit of more than 30%. In addition, the mechanical transfer shows large (80% and more) voltage-controlled electro-mechanical amplification of the flow signal for frequencies below the sensor's resonance.
    Original languageUndefined
    Title of host publicationIEEE Sensors 2011
    Place of PublicationUSA
    PublisherIEEE
    Pages829-832
    Number of pages4
    ISBN (Print)978-1-4244-9290-9
    DOIs
    Publication statusPublished - Oct 2011
    Event2011 IEEE Sensors - University of Limerick, Limerick, Ireland
    Duration: 28 Oct 201131 Oct 2011

    Publication series

    Name
    PublisherIEEE
    ISSN (Print)1930-0395

    Conference

    Conference2011 IEEE Sensors
    Country/TerritoryIreland
    CityLimerick
    Period28/10/1131/10/11

    Keywords

    • METIS-285003
    • IR-79391
    • Voltage measurement
    • Sensitivity
    • EWI-21283
    • Mechanical variables measurement
    • Hair
    • Resonant frequency
    • TST-Life like
    • Mechanical sensors

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