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rc parallel circuit
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In this paper,body leakage current relative sensitivity is drawn into and body leakage current relative sensitivity curve is aquired from Dalziel's reserching conclusion in body sensory current. Comparing this curve to the resistance current division ratio amptitude characteristic curve in RC parallel circuit, an analytical function approach to the body leakage current relative sensitivity is led out. After body equivalent sensory current is drawn into, its numerical approximation is led out. Then, the...

In this paper,body leakage current relative sensitivity is drawn into and body leakage current relative sensitivity curve is aquired from Dalziel's reserching conclusion in body sensory current. Comparing this curve to the resistance current division ratio amptitude characteristic curve in RC parallel circuit, an analytical function approach to the body leakage current relative sensitivity is led out. After body equivalent sensory current is drawn into, its numerical approximation is led out. Then, the function of input impedence of leakage current measuring circuit is given out. And the significance of the study is pointed.

本文在Dalziel进行的人体对电流感知特性的研究基础上引入了人体相对感知程度概念,得到了人体相对感知程度曲线,通过与RC并联网络的电阻分流系数幅频特性曲线比较,引申出人体相对感知程度的解析逼近。在明确人体等效感知电流的含义后,给出了其数值逼近。最后,解释了泄漏电流测试电路输入阻抗的作用,并指出了本研究的意义。

A new method of studying frequency characteristics of powder EL devices is reported. The method is based on the principles as follows. For a RC parallel circuit, at frequency f1:Where I1, the total current, and I1c,L1R,I1R are the capacitive current and conductive current, respectively. Similarly, when the frequency is raised to f2:For an ideal RC parellel circuit, the values of capacitance and resistance arc independent of frequency. For this reason,From (1) , (2) , (3) and ( 4 ) , the dependences...

A new method of studying frequency characteristics of powder EL devices is reported. The method is based on the principles as follows. For a RC parallel circuit, at frequency f1:Where I1, the total current, and I1c,L1R,I1R are the capacitive current and conductive current, respectively. Similarly, when the frequency is raised to f2:For an ideal RC parellel circuit, the values of capacitance and resistance arc independent of frequency. For this reason,From (1) , (2) , (3) and ( 4 ) , the dependences can be derived as follows: According to ( 5 ) and (6) , I1 and I2 are measured, I1C and IIR can be obtained.For a real RC parallel circuit, the values of capacitance and resistance are dependent on frequency.But when a suitable small AAAAAAAAAf(AAAAAAf = f2-f1) is taken, it can be considered that the values of R and C are constant in the region of AAAAAAAAAAf. Therefore, (5 ) and (6) are available.A powder EL device operated under AC voltage can be considered as a RC parallel circuit including conductive current IR and capacitive current IC. Thus above principles can be used for measuring loss current, no-loss current, loss angle, efficiency and their dependences on frequency in powder EL devices.The results of measurement confirm that the new method is reasonable.The error is analyzed.

提出了一种简单的研究粉末电致发光(EL)器件频率特性的新方法.用这种方法可以使用最少和最一般的设备条件很方便地测量粉末EL器件的有功电流、无功电流、损耗角和发光效率等重要参量及其随频率的变化特性.也可用来简单快速地测量介质和电容器的损耗特性. 试验并论证了方法的合理性,可行性及其物理依据.分析了方法的系统误差及随机误差.

In this paper, Chua's circuit is modified by adding an RC parallel circuit into the L-arm in Chua's circuit. The bifurcation, control and synchronization of the modified Chua's circuit have been studied by computer simulation.

在蔡氏电路的L臂上加入RC并联电路,用数值模拟研究这种变型蔡氏电路的分岔,控制和同步特性.

 
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