MAGNETIC SENSOR DEVICE
    2.
    发明申请
    MAGNETIC SENSOR DEVICE 有权
    磁传感器装置

    公开(公告)号:US20140028308A1

    公开(公告)日:2014-01-30

    申请号:US14009441

    申请日:2012-05-11

    IPC分类号: G01R33/09

    摘要: A magnetic sensor device includes a first magnet and a second magnet that are disposed on mutually opposing sides of a conveyance path, and one of poles of the first magnet faces an opposite pole of the second magnet. The first magnet and the second magnet generate a cross magnetic field whose strength in a spacing direction, which is orthogonal to a conveying direction, is within a predetermined range. An AMR element is located in a magnetic field in which the strength of the cross magnetic field in the spacing direction is within a predetermined range, and detects, as change in a resistance value, change in the cross magnetic field caused by an object to be detected. A multilayer board outputs the change in the resistance value detected by the AMR element to a processing circuit.

    摘要翻译: 磁传感器装置包括:第一磁体和第二磁体,其布置在输送路径的相对的相对侧上,并且第一磁体中的一个磁极面对第二磁体的相反极。 第一磁体和第二磁体产生与传送方向正交的间隔方向的强度在预定范围内的交叉磁场。 AMR元件位于磁场中,其中间隔方向上的交叉磁场的强度在预定范围内,并且作为电阻值的变化,检测由对象引起的交叉磁场的变化, 检测到。 多层板将由AMR元件检测的电阻值的变化输出到处理电路。