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对阀门定位器位置反馈系统的精度分配和计算进行了全面的分析研究，介绍了系统误差分析，随机误差分析，误差的计算以及用于角行程执行机构的精度。
The precision analysis and calculation of valve positioner position feedback system are comprehensively analyzed. The system error analysis, random error analysis, error calculation and the accuracy of the actuator for the angular stroke are introduced.