ULTRASONIC STRESS MEASURING APPARATUS
    1.
    发明申请
    ULTRASONIC STRESS MEASURING APPARATUS 审中-公开
    超声应变测量装置

    公开(公告)号:US20080047347A1

    公开(公告)日:2008-02-28

    申请号:US11843375

    申请日:2007-08-22

    IPC分类号: G01H5/00

    摘要: After a probe control means causes a longitudinal wave probe to carry out transmission and reception, it slides a shear wave probe to the same position. The probe control means rotates the shear wave probe at each predetermined angle and rotates it 180° while causing it to carry out the transmission and the reception at each rotating position. A measured data analyzer 16 calculates the constant of texture induced anisotropy in a test piece from echo data when both the probes carry out the transmission and the reception. With this arrangement, it is possible to measure the residual stress of a material, in which both texture induced anisotropy and residual stress induced anisotropy mixedly exist with pinpoint accuracy by separating only the texture induced anisotropy from the material.

    摘要翻译: 探头控制装置使纵波探头进行发射和接收后,将剪切波探头滑动到同一位置。 探头控制装置以每个预定角度旋转剪切波探头,并使其旋转180°,同时使其在每个旋转位置执行发送和接收。 测量数据分析器16当两个探头进行发送和接收时,从回波数据计算测试片中纹理感应各向异性的常数。 通过这种布置,可以通过仅从材料中分离纹理诱导的各向异性来测量材料的残余应力,其中结构诱导的各向异性和残余应力诱导的各向异性两者以精确的精度混合存在。