The digital and grating instrument isanew kind of instrument for measurement of angle.
数字光栅测角仪是一种新型的角度计量仪器。
By analyzing the principle of grating auto testing, a general design of the instrument was given.
通过对光栅自动测试仪的基本测试原理进行分析，给出了测试仪的总体设计方案。
Then, the key technologies in the realization of the grating auto testing instrument are introduced particularly.
并详细介绍了光栅自动测试仪的软硬件实现中所用到的关键技术。
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