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中文摘要：
针对磁悬浮轴承用位移传感器,通过Matlab编程仿真,分析了位移传感器的类型、安装方式以及安装位置对传感器测量误差的影响。研究结果表明：无论选择什么类型的位移传感器,只要传感器形成的检测平面与电磁铁形成的控制平面轴向存在偏差,都将引入测量误差,但传感器外置产生的测量误差要小于传感器内置产生的测量误差;电涡流、光电和激光传感器采用差动安装时,可消除传感器的测量误差,能真实反映转子的位移量,但电感式传感器由于结构方面的原因,即使采用差动安装还会引入测量误差;位移传感器的安装精度也将影响到传感器的测量误差。研究结果为更合理地选用和安装磁悬浮轴承用位移传感器,提高主动磁悬浮轴承的性能提供了理论依据。
英文摘要：
By using Matlab simulation, the influence of the types, installation method and installation position of the displacement sensor for active magnetic bearing （AMB） on the measuring error is obtained. Results show that as long as the axial alignment error of the detection plane formed by the sensor and the control plane formed by electromagnet exists, the measurement errors will be introduced no matter what type of the sensor is chosen. The measurement error with the inner sensor is more than that with the outer sensor. By installing certain types of sensors differentially, such as eddy-current, optical and laser sensor, the measurement error can be eliminated so that the real displacement of the rotor can be obtained. However, because of the special structure of inductive sensor, the measurement error still exists even though using the differential installation method. The mounting accuracy of the displacement sensors also affects the measurement error. The study provides a theoretical foundation for choosing and installing AMB displacement sensors, thus improving the performance of AMB.
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