In system, the validity of feedback speed measurement method and accuracy of feedbackelements affect control performance greatly.
系统中速度反馈测量方法的正确性以及反馈元件的测量精度对控制系统的控制性能影响很大。
2
The results show that this method can efficiently restrain the rate ripple of the table caused by the periodic errors of position feedbackelements, and can raise the rate stability of tables.
结果表明：该方法能够有效地抑制位置反馈元件周期性误差导致的速率波动，提高转台的速率平稳性。
3
Therefore, gathering feedback on each element is a theme that pervades all elements.