通过对光栅角编码器测角原理和偏心误差产生原因的分析，建立了偏心误差模型。
An eccentricity error mathematic model was built up based on the measurement principle of the optical angular encoder and error analysis.
通过对光栅角编码器测角原理和偏心误差产生原因的分析，建立了偏心误差模型。
An eccentricity error mathematic model was built up based on the measurement principle of the optical angular encoder and error analysis.
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