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公开(公告)号：US09310782B2
公开(公告)日：2016-04-12
申请号：US14382221
申请日：2013-02-21
发明人： Yu Zhu , Jinchun Hu , Dengfeng Xu , Yuting Sun , Wensheng Yin , Ming Zhang , Kaiming Yang , Haihua Mu
摘要： A method for measuring the displacement of a planar motor rotor. The measuring method comprises: four magnetic induction intensity sensors are distributed on the planar motor rotor; sampled signals of the four distributed sensors are processed to obtain signals Bsx, Bcx, Bsy and Bcy and magnetic field reference values Bksx, Bkcx, Bksy and Bkcy; and X-direction displacement and Y-direction displacement can be measured respectively according to inequalities (I) and (II) by judgments, wherein Δx and Δy are X-direction displacement resolution and Y-direction displacement resolution respectively, and BM is the magnetic induction intensity amplitude of the magnetic field of said planar motor. The method provided by the invention is simple in calculation, can avoid calculation of a transcendental function and solve the quadrant judgment problem, is favorable to real-time high-speed operation and has a high engineering value. B ksx B cx - B kcx B sx B M 2 ≥ Δ x ( I ) B ksy B cy - B kcy B sy B M 2 ≥ Δ y ( II )
摘要翻译： 一种用于测量平面电动机转子的位移的方法。 测量方法包括：四个磁感应强度传感器分布在平面电机转子上; 处理四个分布式传感器的采样信号以获得信号Bsx，Bcx，Bsy和Bcy以及磁场参考值Bksx，Bkcx，Bksy和Bkcy; 并且可以通过判断根据不等式（I）和（II）分别测量X方向位移和Y方向位移，其中＆Dgr; x和＆Dgr; y分别是X方向位移分辨率和Y方向位移分辨率， BM是所述平面电动机的磁场的磁感应强度振幅。 本发明提供的方法计算简单，可以避免超验函数的计算，解决象限判断问题，有利于实时高速运行，具有很高的工程价值。 B ksx B cx - B kcx B sx B M 2ß≥＆Dgr; x（I）B ksy B cy-B kcy B sy B M 2ß≥＆Dgr; y（II）
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公开(公告)号：US20150097508A1
公开(公告)日：2015-04-09
申请号：US14382221
申请日：2013-02-21
发明人： Yu Zhu , Jinchun Hu , Dengfeng Xu , Yuting Sun , Wensheng Yin , Ming Zhang , Kaiming Yang , Haihua Mu
摘要： A method for measuring the displacement of a planar motor rotor. The measuring method comprises: four magnetic induction intensity sensors are distributed on the planar motor rotor; sampled signals of the four distributed sensors are processed to obtain signals Bsx, Bcx, Bsy and Bcy and magnetic field reference values Bksx, Bkcx, Bksy and Bkcy; and X-direction displacement and Y-direction displacement can be measured respectively according to inequalities (I) and (II) by judgments, wherein Δx and Δy are X-direction displacement resolution and Y-direction displacement resolution respectively, and BM is the magnetic induction intensity amplitude of the magnetic field of said planar motor. The method provided by the invention is simple in calculation, can avoid calculation of a transcendental function and solve the quadrant judgment problem, is favorable to real-time high-speed operation and has a high engineering value. B ksx B cx - B kcx B sx B M 2 ≥ Δ x ( I ) B ksy B cy - B kcy B sy B M 2 ≥ Δ y ( II )
摘要翻译： 一种用于测量平面电动机转子的位移的方法。 测量方法包括：四个磁感应强度传感器分布在平面电机转子上; 处理四个分布式传感器的采样信号以获得信号Bsx，Bcx，Bsy和Bcy以及磁场参考值Bksx，Bkcx，Bksy和Bkcy; 并且可以通过判断根据不等式（I）和（II）分别测量X方向位移和Y方向位移，其中＆Dgr; x和＆Dgr; y分别是X方向位移分辨率和Y方向位移分辨率， BM是所述平面电动机的磁场的磁感应强度振幅。 本发明提供的方法计算简单，可以避免超验函数的计算，解决象限判断问题，有利于实时高速运行，具有很高的工程价值。 B ksxB cx - B kcx B B sx B M 2≥＆Dgr; x（I）B yBsy sy y（II）
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