在信号传感器或信号转换器遇到接地的输入或输出信号时，电流环路信号隔离器减少现场测量难题。
DEVAR current loop signal isolators reduce problems found in field measurements when signal transmitters or converters encounter both input and output signals that may be grounded.
本文用传统的定性方法和函数方法讨论了调频输入的正弦锁相环路方程的周期解。
In this paper, the periodic solution of sinusoidal PPL equation for FW inputs has been discussed with the traditional qualitative method and Lyapunov functions.
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