Quasistatic magnetic and electric field stress/strain gages
    1.
    发明授权
    Quasistatic magnetic and electric field stress/strain gages 失效
    准静态磁场和电场应力/应变计

    公开(公告)号:US07533575B2

    公开(公告)日:2009-05-19

    申请号:US11702422

    申请日:2007-02-05

    CPC分类号: G01L1/125

    摘要: Magnetic or electric field sensors are mounted against a material surface and used for stress, strain, and load monitoring of rotating components such as vehicle drive trains. The stationary sensors are mounted at multiple locations around the component and used assess the stress on the component at multiple rotational positions. The sensor response is typically converted into a material property, such as magnetic permeability or electrical conductivity, which accounts for any coating thickness that may be present between the sensor and mounting surface. The sensors are not in direct contact with the rotating component and are typically mounted on an annular material or ring that encircles the rotating component. Measurements of the annular material properties, such as the stress, are related to the stress on the rotating component and discrete features on the component. As a particular example, the rotating component is a planetary gear system, with sensors mounted on the ring gear and the discrete features are carrier plate posts. The sensors are preferably mounted at equal distances around the circumference of the component. The sensors and instrumentation may be removable and reusable for monitoring of additional components.

    摘要翻译: 磁场或电场传感器安装在材料表面上,用于对诸如车辆传动系的旋转部件进行应力,应变和负载监测。 固定式传感器安装在组件周围的多个位置,用于评估组件在多个旋转位置的应力。 传感器响应通常被转换成诸如磁导率或导电性的材料性质,其考虑了传感器和安装表面之间可能存在的任何涂层厚度。 传感器不与旋转部件直接接触,并且通常安装在环绕旋转部件的环形材料或环上。 环形材料特性(如应力)的测量与旋转部件上的应力和部件上的离散特征有关。 作为具体示例,旋转部件是行星齿轮系统,其中传感器安装在齿圈上,并且分立的特征是承载板柱。 传感器优选地围绕部件的圆周以相等的距离安装。 传感器和仪器可能是可拆卸的,可重复使用,用于监控附加部件。