The state observer observes the precise load torque, rotor position and speed with only a low accuracy position sensor.
状态观测器可以利用较低精度的位置传感器来准确观测负载转矩、转子位置和转速。
The utility model has the advantages of steady operation state, low cost, high degree of automation, small work load, and no impact on health of the sampling person.
运行状态稳定，成本低，自动化程度高，工作量小，不会影 响采样人员的健康；
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