Li Xue-Chen, Zhao Na, Liu Zhi-Hui
College of Physics Science and Technology, Hebei University, Baoding 071002, China.
Guang Pu Xue Yu Guang Pu Fen Xi. 2009 Feb;29(2):297-9.
In the present study, a device of water electrodes was used to get different discharge modes in air and Ar respectively, including stochastic filament mode, hexagon pattern mode and homogeneous diffusion mode. By comparing the waveforms of light emission and current for the three different modes, the relationship between the waveforms of light emission and current in dielectric barrier discharge was investigated. Research results show that the waveforms of light emission and current are similar when the discharge signal is very strong. However, the discharge current signal can not be discerned from the displacement current when the discharge current is very weak, because the current signal includes discharge current and displacement current. Under this circumstance, discharge dynamics can be investigated by studying the waveform of light emission. In addition, the light emission signal of single filament was obtained because spatial resolved measurement can be easily realized for the light emission signal measurement. Consequently, the research results indicate that it is a good method to investigate the discharge dynamics by analyzing the waveform of light emission in dielectric barrier discharge.
在本研究中，使用了一种水电极装置，分别在空气和氩气中获得不同的放电模式，包括随机丝状模式、六边形图案模式和均匀扩散模式。通过比较三种不同模式下的发光波形和电流波形，研究了介质阻挡放电中发光波形与电流波形之间的关系。研究结果表明，当放电信号非常强时，发光波形和电流波形相似。然而，当放电电流非常弱时，放电电流信号无法与位移电流区分开来，因为电流信号包括放电电流和位移电流。在这种情况下，可以通过研究发光波形来研究放电动力学。此外，由于发光信号测量可以很容易地实现空间分辨测量，因此获得了单丝状的发光信号。因此，研究结果表明，通过分析介质阻挡放电中的发光波形来研究放电动力学是一种很好的方法。
