Apparatus for determining location of an element of magnetizable
material in a construction structure
    1.
    发明授权
    Apparatus for determining location of an element of magnetizable material in a construction structure 失效
    用于确定构造结构中的可磁化材料的元件的位置的装置

    公开(公告)号:US5296807A

    公开(公告)日:1994-03-22

    申请号:US830140

    申请日:1992-01-31

    CPC分类号: E04C5/00 G01V3/15

    摘要: An apparatus for locating magnetizable material (5, 6) within a structure (4) includes a scanning head (1) with a permanent magnet (28) for producing a magnetic field in the structure (4). Two field plates (30, 31), adjacent one another on only one pole face of the permanent magnet (28), are interconnected by a differential circuit and measure the magnetic field of the magnet disturbed by the magnetizable material (5, 6). The differential values measured by the pair of field plates form a differential measured signal for establishing, after differentiation, the location of the magnetizable material (5, 6) within the structure (4). The location of the magnetizable material (5, 6) within the structure can be shown on a monitor (7) of an evaluation unit (3).

    摘要翻译: 一种用于在结构(4)内定位可磁化材料(5,6)的装置包括具有用于在结构(4)中产生磁场的永磁体(28)的扫描头(1)。 在永磁体(28)的仅一个极面上彼此相邻的两个场板(30,31)通过差分电路互连,并测量由可磁化材料(5,6)干扰的磁体的磁场。 由一对场板测量的微分值形成差分测量信号,用于在微分之后建立结构(4)内可磁化材料(5,6)的位置。 结构内的可磁化材料(5,6)的位置可以显示在评估单元(3)的监视器(7)上。