Modeling and Simulation of Pulsed Electroacoustic Measurement Method
Modeling and Simulation of Pulsed Electroacoustic Measurement Method
复制标题
脉冲电声测量方法的建模与仿真
DOI：
10.1109/jsyst.2013.2292452
复制
发表时间：
2014
影响因子：
4.4
通讯作者：
C. C. Reddy
中科院分区：
文献类型：
--
作者：
J. S. Chahal;C. C. Reddy
脉冲电声（PEA）法是测量电介质中电荷的一种常用方法。在这种方法中，脉冲高压产生与电荷成比例的声波。声波在被压电换能器感知并转换成电信号之前，要穿过几个材料层。由于声波在其路径上有多次反射，对声波的直接分析将是复杂的。在本文中，我们提出了由电和声电路组成的PEA方法的物理模型的仿真。利用该方法的PSpice模型，作者试图解决一些与设计相关的问题，这些问题在早期的作品中似乎没有报道过。将声波与传输线中的波传播进行类比，实现了声电路。与改进的Leach换能器模型一样，压电换能器也被建模为传输线，不同的是，在这种情况下，换能器吸收声信号而不是产生声信号。在可能的情况下，近似的理论方程被用来与模拟进行比较，并发现在这些情况下匹配得很好。
Pulsed electroacoustic (PEA) method is a very popular method for measurement of charge in dielectrics. In this method, an acoustic wave proportional to charge is generated by a pulsed HV. The acoustic wave traverses several material layers before being sensed and converted to electrical signal by a piezoelectric transducer. Due to multiple reflections in its path, a direct analysis of traveling acoustic wave would be complex. In this paper, we have proposed simulation of the physical model of the PEA method consisting of electrical and acoustic circuits. Using PSpice model of the method, authors have tried to address some design-related issues, which appear to have not been reported in earlier works. The acoustic circuit has been realized using analogy between acoustic wave and wave propagation in electric transmission line. The piezoelectric transducer is also modeled as a transmission line as in modified Leach's transducer model, except that, in the present case the transducer absorbs acoustic signal instead of generating. Approximate theoretical equations have been used to compare with simulations, wherever a comparison is possible, and found to match well in those cases.
直流场下线板电极系统空间电荷信号的PEA法
DOI：
--
发表时间：
2007
期刊：
影响因子：
--
作者：
N.J.Florous;K.Saitoh;M.Koshiba;M.Fukuma
通讯作者：
M.Fukuma