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本文介绍一种减少闭环调节系统中的静态误差的方法,即利用自举制作传输零点,理论上可把静态误差调节到零。本方法所能达到的指标与一般开闭环系统相同,但可大大简化同步调节设备,并可用于不适宜使用开闭环系统的场合。在一个强反馈系统中,加入自举零点并不增加稳定性设计的困难。因此原则上这种方法可普遍代替开闭环系统用于各种自动调节场合。文中举了几个例子来讨论本方法在电测中的应用。
This paper presents a method to reduce the static error in a closed-loop regulation system by using a bootstrap to transmit zero points, theoretically adjusting the static error to zero. The method can achieve the same index as the general open-loop system, but it can greatly simplify the synchronous adjustment equipment and can be used in applications that are not suitable for the use of closed-loop system. In a strong feedback system, adding a bootstrap zero does not increase the difficulty of the stability design. Therefore, in principle, this method can generally replace the closed-loop system for a variety of automatic adjustment occasions. The paper cite a few examples to discuss the application of this method in electrical measurement.