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从理论上探讨了磁阻率效应，叙述了精密角位移传感器的工作原理及结构设计。传感器的分辨率已达０．０１°，通过可靠性寿命试验，传感器的失效率λ（ｔ）＜１×１０－７／ｈ。
The magneto-resistivity effect is discussed in theory, and the working principle and structure design of the precision angular displacement sensor are described. Sensor resolution has reached 0.01 °, by the reliability of life test, the sensor failure rate λ (t) <1 × 10-7 / h.