Force-transmitting mechanism with a separate lever arm extending to a position sensor

    公开(公告)号:US09958344B2

    公开(公告)日:2018-05-01

    申请号:US15423107

    申请日:2017-02-02

    CPC classification number: G01L1/20 G01D5/26 G01G7/02 G01G21/244

    Abstract: The force-transmitting mechanism (400) includes a parallel-motion guide mechanism with a movable parallel leg (440), a stationary parallel leg, and at least two parallel-guiding members (450), wherein the parallel legs and the parallel-guiding members are connected to each other by flexure pivots and the movable parallel leg is constrained to the stationary parallel leg in guided mobility by the parallel-guiding members. The force-transmitting mechanism further includes a force-transmitting lever (480) which is pivotally supported on a fulcrum pivot (490) arranged on the stationary parallel leg, with a first lever arm (481) having a force-transmitting connection to the movable parallel leg by way of a coupling member (470), and a second lever arm (482) to which a measurement transducer (410) can be attached through a force-transmitting connection. The second lever arm includes a first partial lever arm (482A) and a second partial lever arm (482B), wherein the first partial lever arm is designed to receive the compensation force generated by the measurement transducer, and the second partial lever arm is designed for the detection of a displacement of the pivotally supported force-transmitting lever relative to a null reference of a position sensor (420).

    MONITORING A STRUCTURE FOR DAMAGE
    16.
    发明申请

    公开(公告)号:US20170363557A1

    公开(公告)日:2017-12-21

    申请号:US15536760

    申请日:2015-02-02

    Applicant: BAE SYSTEMSPLC

    CPC classification number: G01N27/20 G01L1/20 G01M5/0033 G01M5/0083

    Abstract: A structure to be monitored for damage and a method of monitoring the structure for damage are provided. The structure has a coating thereon, the coating defining a surface having characteristics which vary in a predetermined manner with damage to the structure. The surface has a series of conductive tracks applied thereto and in intimate contact therewith such that the said predetermined variation of the surface characteristics will vary the resistance of the series of conductive tracks in a predetermined manner in order to determine both location and extent of damage.

    Piezoresistive Device
    18.
    发明申请

    公开(公告)号:US20170350772A1

    公开(公告)日:2017-12-07

    申请号:US15538862

    申请日:2015-12-23

    CPC classification number: G01L1/18 G01L1/20 G01L1/205 H01B1/24

    Abstract: The present invention relates to piezoresistive devices and pressure sensors incorporating such devices. At its most general, the invention provides a piezoresistive device, comprising a piezoresistive material positioned between an upper conductive layer and a lower conductive layer, wherein the piezoresistive material comprises carbon nanoparticles (most preferably graphene nanoplatelets, graphene or carbon nanotubes) dispersed in a polymer matrix material. The invention also relates to methods of manufacturing and using such devices.

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