电机自产生后，便对人类社会的进步与发展起到了不可估量的作用。电机转子是电机核心部件。而它的轴向位移的大小反映很多种电机的异常情况。这些异常情况将影响电机的正常运行甚至造成电机故障甚至损坏。为了避免这种情况的发生，我们要研究电机转子的轴向位移以及如何测量它以更好的控制它。而在实际工作中，电机转子的轴向位移和径向位移往往同时存在，因此我们要同时研究其径向与轴向测量方法。
转子的位置测量分接触式与非接触式。接触式测量一般误差较大，因此使用非接触式测量是更好的选择。
从原理上来说，很多种传感器都能用于非接触式位置测量，但真正能够可靠地应用于工业的只有电感式位置传感器和电涡流式位置传感器。本系统的转子位置测量采用了电涡流传感器。
通过研究电涡流传感器在不同材料时（45#钢和铝）同时存在变距离变面积时的输出特性，来研究采用电涡流传感器实现电机转子轴向位移和径向位移一体化测量的可行性。经过一系列的实验测量与研究后，得出结论：用电涡流传感器对电机转子轴向与径向位移进行一体化测量时可行的。

关键词：转子；位移；电涡流传感器；一体化测量

Since the motor generated and then to human social progress and development has played an invaluable role. Rotor core of the electrical components. And its axial displacement reflect the size of the motor are many anomalies. These anomalies will affect the normal operation of motor or even cause damage to the electrical fault even. To avoid this from happening, we have to study the axial displacement motor rotor and how to measure it to better control it. And in practical work, the rotor of the radial displacement axial displacement and are often co-exist, so we have to study the radial and axial measurement method.Rotor position measurement points contact with the non-contact. General contact measurement error, the use of non-contact measurement is a better choice.
From the principle point of view, is a variety of sensors can be used for non-contact position measurement, but can really reliable only applied to industrial inductive position sensors and eddy current-position sensor. The system of the rotor position using the eddy current measurement sensors.
Through research eddy current sensor in different materials (45 # steel and aluminum) at the same time there changed the area from the variable output characteristics, to explore the use of eddy current sensor to achieve rotor axial displacement and radial displacement measuring the feasibility of integration. After a series of experimental measurements and study, concluded: eddy current sensors on the rotor axial and radial displacement for integration measurements feasible.

Key words: rotor; displacement; eddy current sensors; integrated measurement