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1. 发明授权

US06532832B2 Magnetoelastic torque transducer for improved torque measurement 失效
标题翻译：用于改进扭矩测量的磁弹力矩传感器
公开(公告)号：US06532832B2
公开(公告)日：2003-03-18
申请号：US09955109
申请日：2001-09-19
申请人： Roozbeh Shahcheraghi , Jarl Sobel , Kent Blomkvist , Hans Ling
发明人： Roozbeh Shahcheraghi , Jarl Sobel , Kent Blomkvist , Hans Ling
IPC分类号： G01L302
CPC分类号： G01L3/102 , G01L3/105
摘要： A torque transducer for measuring torque transmitted in a rotating as well as a stationary shaft. The torque transducer comprises a transducer shaft 1 arranged with a cylinder-shaped magnetoelastic region 2 fixed to the cylindrical periphery of the transducer shaft, which cylinder-shaped magnetoelastic region is permanently magnetized in the azimuthal direction. The transducer shaft with the cylinder-shaped magnetoelastic region is surrounded by a winding 4 which is supplied by an alternating current. Further, the winding is connected to a phase-sensitive detector 5. According to the present invention, a magnetic and non-linear ferromagnetic material 3′ is arranged in physical contact with the cylinder-shaped magnetoelastic region 2. The advantages are that the transducer shaft is manufactured independently of the magnetic properties of the shaft material and may substantially consist of a ferromagnetic material.
摘要翻译：用于测量在旋转和固定轴中传递的扭矩的扭矩传感器。扭矩传感器包括一个传感器轴1，该传感器轴1设置有固定在换能器轴的圆柱形周边上的圆柱形磁弹性区域2，该圆柱形磁弹性区域在方位角方向上被永久地磁化。具有圆柱形磁弹性区域的传感器轴被由交流电提供的绕组4包围。此外，绕组连接到相敏检测器5.根据本发明，磁性和非线性铁磁材料3'被布置成与圆柱形磁弹性区域2物理接触。优点是换能器轴独立于轴材料的磁特性制造，并且可以基本上由铁磁材料组成。

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