纳秒脉冲电晕放电衰减研究

建立了线－板结构脉冲电晕放电实验模型，研究了沿电晕线的纳秒脉冲电晕放电对其自身波头幅值、波头形状的衰减特性，用高灵敏度紫外光－可见光成像系统摄取了单次纳秒脉冲电晕波电图像并进行了分析。研究表明，纳秒脉冲电晕放电对其自身波头幅值的衰减在电晕线前段的下降具有指数型快速衰减的趋势，且首端所加电压幅值越高，这种衰减越严重。

Research on attenuation and distortion of nanosecond pulse corona discharge

A corona discharge model of line\|to\|plate type is set up for the application development of nanosecond pulse corona discharge plasma technology in the field of environment pollution control. The attenuation and distortion of the amplitude of the wave front and the discharge image as well as the waveform along the corona wire are investigated. The results show that the wave front amplitude decreases sharply due to the corona not so far from the beginning of the corona wire. The higher the pulse amplitude applied to the beginning of the corona wire, the more serious the decreasing of the wave front amplitude. The sharp attenuation of the corona along the wire has to be considered in designing a real nanosecond pulse corona discharge reactor for getting higher reacting efficiency.