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针对“神光Ⅱ”功率平衡控制的要求 ,提出了一种精密测量主放大器角变反镜 (AVM )衰减曲线的方法 ,并建立了一套计算机自动控制的测量装置 ,利用该装置达到了极限相对误差 0 .5 %的测量精度。
Aiming at the requirement of “ShenGuang Ⅱ” power balance control, a method of precise measurement of AVM decay curve is proposed and a set of computer automatic control measuring device is set up. The device reaches the limit Relative error of 0.5% of the measurement accuracy.