数字光栅测角仪是一种新型的角度计量仪器。
The digital and grating instrument isanew kind of instrument for measurement of angle.
为了使光栅测角系统获得较高的分辨率，通常采用鉴相式电子细分。
In order to achieve high resolution in grating angles measuring system, phase fine division is adopted generally.
本文通过光栅衍射给出了用最小偏向角测光波波长的方法。
The paper proposes a method of measuring wave length of light wave by using minimum deviation angle based on raster.
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