The measurement principle of selective frequency balance method with input circuits of inductance and capacitance for PD detection is analyzed in detail in this paper.
文中以电感电容为输入电路，全面分析了用选频平衡法测量局部放电的原理。
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This article introduces the method of humidity control used with Philips humidity-sensitive capacitance sensor, and the basic principle, measuring circle, work frequency, response time etc.
By theory analysis of divider transfer function of magnitude-frequency characteristics and phase-frequency characteristics, a new method equalizing stray capacitance could be conclude.