A MICROPHONE APPARATUS
    1.
    发明申请

    公开(公告)号:WO2022043029A1

    公开(公告)日:2022-03-03

    申请号:PCT/EP2021/072045

    申请日:2021-08-06

    Abstract: A microphone apparatus comprising: a casing; a composite material located within the casing, the composite material comprising at least in part conductive particles, the composite material configured to alter an internal impedance based on a surface disturbance transmitted by an acoustic wave, and wherein the microphone apparatus is configured to be coupled to a surface that transmitted the acoustic wave.

    STRAIN SENSOR COMPRISING A VISCOUS PIEZORESISTIVE ELEMENT

    公开(公告)号:WO2018197355A1

    公开(公告)日:2018-11-01

    申请号:PCT/EP2018/060171

    申请日:2018-04-20

    Abstract: A strain sensor comprises a viscous piezoresistive element embedded or encapsulated within a solid, flexible, resilient packaging element, and contact means contactable from the exterior of the strain sensor and defining an electrical path through or along at least a portion of the viscous piezoresistive element, the resistance of the electrical path varying with deformation of the strain sensor. The invention allows the high gauge factor of a viscous piezoresistive material to be taken advantage of in a practical device by containing the material within a packaging element. The packaging element ensures a consistent output response as a function of deformation of the strain sensor and enables the strain sensor to detect time-varying forces due to the resilient nature of the packaging element.

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