简述了数字式光栅测量系统结构及其角速率测量方法,分析了该系统测量转台角速率的各影响量,评定了其角速率测量不确定度。%The configuration of digital grating measurement system and a measuring method for an-gular rate are described, the influence quantities of this system measuring turntable's angular rate are concretely analyzed. The uncertainty in measurement of angular rate is evaluated.
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