公开(公告)号：US5186059A

公开(公告)日：1993-02-16

申请号：US640685

申请日：1991-01-14

申请人： Renshiro Ishino ,  Shigeo Yoshimura ,  Mutsumi Sunahata ,  Taro Saito ,  Yasuo Tanizaki

发明人： Renshiro Ishino ,  Shigeo Yoshimura ,  Mutsumi Sunahata ,  Taro Saito ,  Yasuo Tanizaki

IPC分类号： G01L3/10

CPC分类号： G01L3/102 ,  G01L3/103

摘要： A torque sensor shaft for a non-contacting torque sensor including magnetically anisotropic portions formed on the surface of the shaft. Absolute value of angle of inclination of the anisotropic directions of the magnetically anisotropic portions is set lower than 40 degree so as to permit reduction of stress components in the anisotropic directions from their level in the case where the absolute value of the angle is 45 degree. By such angle setting it is possible to prevent possible decrease in sensor sensitivity and, in addition, to obtain good improvement in the point of magnetic saturation due to torque applied, thereby to obtain an improved dynamic range.

摘要翻译： 一种用于非接触转矩传感器的转矩传感器轴，包括形成在轴的表面上的磁各向异性部分。 磁各向异性部分的各向异性方向的倾斜角的绝对值设定为低于40度，从而允许在角度的绝对值为45度的情况下从各向异性方向的应力分量减小。 通过这样的角度设定，可以防止传感器灵敏度的可能降低，并且另外由于施加扭矩而获得对磁饱和点的良好改善，从而获得改善的动态范围。