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本文提出了一种由阶跃响应求取近似的一阶或二阶滞后传递函数的计算方法。用寻优的方法求取纯滞后时间和时间常数,对一阶纯滞后对象具有较高的精度,对由实验获得对象传递函数具有一定的参考意义。
In this paper, a method of calculating the first-order or second-order hysteresis transfer function from the step response is proposed. Using the optimized method to obtain the pure lag time and the time constant, it has higher precision for the first-order purely lagged object and has certain reference meaning for obtaining the object transfer function from the experiment.