介绍了汽车用传感轮及配套的传感器的结构和工作原理，提出了一种面向角度和波形的自动测试方法，并据此设计了自动测试装置，最后以一个实例论证了传感轮测试装置的实用性。

It describes the principle of the sensor wheel and its structure, presents the automatic measure method oriented to the Angle, designs this equipment. The example shows that the device is practical.

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