Magnetostrictive vehicle weight sensor
    1.
    发明授权
    Magnetostrictive vehicle weight sensor 失效
    磁致伸缩车辆重量传感器

    公开(公告)号:US07152491B2

    公开(公告)日:2006-12-26

    申请号:US11111437

    申请日:2005-04-22

    IPC分类号: G01L5/00 G01L3/00

    摘要: A vehicle seat weight sensing system includes a plurality of sensors mounted below a seating surface of a vehicle seat. Each sensor includes a tubular inner wall about which are coiled an activation coil and a detection coil. All of the weight of the seating surface is borne by the inner walls of the sensors. The activation coil induces a current in the tubular inner wall which is detected by the detection coil. Stress in the inner wall alters the signal detected by the detection coil. Analysis of the wave form of the signal indicates the amount of stress applied to the tubular inner wall and the weight upon the vehicle seating surface. A fastener connecting to vehicle seat components passes through the tubular inner wall and retains the sensors in the vehicle seat.

    摘要翻译: 车辆座椅重量感测系统包括安装在车辆座椅的座面下方的多个传感器。 每个传感器包括一个管状内壁,围绕这些管状内壁缠绕一个激活线圈和一个检测线圈。 座面的所有重量都由传感器的内壁承受。 激活线圈引起管状内壁中由检测线圈检测到的电流。 内壁的应力改变了检测线圈检测到的信号。 信号波形分析表明施加到管状内壁上的应力和车辆座椅表面上的重量。 连接到车辆座椅部件的紧固件穿过管状内壁并将传感器保持在车辆座椅中。