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本文叙述了目前脉冲式零位光栅在定位精度方面,理论上存在的不足之处,提出了一种新型的零位光栅,即差分式零位光栅。
This paper describes the current pulse zero grating in the positioning accuracy, the theoretical shortcomings, proposed a new type of zero grating, that is, differential zero grating.