Multi-axis force sensing soft artificial skin

    公开(公告)号:US09797791B2

    公开(公告)日:2017-10-24

    申请号:US14438792

    申请日:2013-10-22

    Abstract: A sensor including a layer having viscoelastic properties, the layer comprising a void, the void filled with a fluid; and optionally, a more rigid sensing element embedded within the layer. When a force is applied to a surface of the sensor, the shape of the void changes, causing the electrical resistance of the fluid in the void to change. When included, the more rigid sensing element can bear upon the void to cause the electrical resistance of the fluid in the void to change. A direction and intensity of the force can be determined by measuring the change of the electrical resistance of different voids positioned about the sensing element. The layer can be an elastomer, preferably silicone rubber. The fluid can be a conductive liquid, preferably Eutectic Gallium Indium. The sensing element can be plastic and can have a “Joystick” shape. The voids can take the form of channels or microchannels having a predefined pattern and/or shape.

    REVERSIBLE FORCE MEASURING DEVICE
    50.
    发明申请

    公开(公告)号:US20170276555A1

    公开(公告)日:2017-09-28

    申请号:US15621924

    申请日:2017-06-13

    Inventor: Geoffrey K. Rowe

    CPC classification number: G01L1/04 G01G5/003 G01G5/04 G01L1/02 G01L5/243

    Abstract: A reversible force measuring device for ascertaining the magnitude and/or direction of an applied load and having a cavity containing an indicating material such as a fluid, with the cavity configured such that when a load is applied to the device, it causes a reversible volumetric change to the cavity. This change causes the indicating material to move in or out of the cavity in a quantity which corresponds to the magnitude and/or direction of the applied load. By measuring the movement of the indicating material, a user can determine the magnitude and/or direction of the applied load. The device may include a component which generates an electrical signal from the measured movement and transmits this signal to another device to control the tensioning of one or more fastener components and or make other analytical measurements by combining this measurement with other measurements like torque and or angle.

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