Shear-type vibration-ultrasonic composite sensor and measuring device

    公开(公告)号:US11841342B2

    公开(公告)日:2023-12-12

    申请号:US17891742

    申请日:2022-08-19

    IPC分类号: G01N29/24 G01N29/09 G01N29/04

    摘要: The present disclosure discloses a shear-type vibration-ultrasonic composite sensor and a measuring device. In the shear-type vibration-ultrasonic composite sensor, a metal matching layer includes an insulating layer arranged on a lower surface and a supporting pillar arranged on an upper surface, the metal matching layer is in contact with a to-be-detected object via the insulating layer, a first negative electrode face of a first normal piezoelectric element is attached to one side of the metal matching layer, a first positive electrode face of the first normal piezoelectric element is attached to a second positive electrode face of a second normal piezoelectric element, a second negative electrode face is attached to a first surface of a backing block, and a second surface of the backing block is provided with a metal housing.