Apparatus for measuring the thickness of clad material
    1.
    发明授权
    Apparatus for measuring the thickness of clad material 失效
    用于测量包层材料厚度的装置

    公开(公告)号:US5349860A

    公开(公告)日:1994-09-27

    申请号:US882455

    申请日:1992-05-12

    IPC分类号: G01N29/07 G01N29/10

    摘要: An apparatus for measuring the thickness of a clad material having an outer mother metal and an inner clad metal. The apparatus includes a transmitter crystal and a receiver crystal of a double crystal angle-type probe which contact the outer surface of the mother metal, for receiving a first echo from the boundary surface of the mother metal and clad metal, and for receiving a second echo from the inner, bottom surface of the clad metal. The apparatus further includes an amplifier for amplifying the echo signals, a detector for detecting the zero-crossing points of the echoes, a zero point determining circuit, a calculator for calculating the periods from a zero point in time to the zero-crossing points, and a calculator for calculating the thickness of the clad material and clad metal based on the calculated periods.

    摘要翻译: 一种用于测量具有外母金属和内包层金属的复合材料的厚度的装置。 该装置包括接触母金属外表面的双晶角型探针的发射晶体和接收晶体,用于从母金属和复合金属的边界面接收第一回波,并接收第二 从复合金属的内部,底部表面回波。 该装置还包括用于放大回波信号的放大器,用于检测回波的过零点的检测器,零点确定电路,用于计算从零点到过零点的周期的计算器, 以及用于基于计算的周期计算包层材料和复合金属的厚度的计算器。