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中文摘要：
采用组合电极结构产生常压等离子体射流,对直流（DC）脉冲辅助射频放电进行试验研究.在每个射频脉冲产生之前,引入一个微秒级DC脉冲放电,通过采集放电电流和电压曲线以及时间分辨放电图像,研究这种组合放电的电学特性及时空分布.结果表明,在射频放电脉冲中间引入微秒级DC脉冲放电之后,使射频放电脉冲起辉电压从3.86kV降低到1.61kV,提高了常压脉冲射频放电的稳定性,可为常压射频放电在工业上的连续化应用提供技术依据.
英文摘要：
The direct current （DC） pulse assisted atmospheric-pressure radio-frequency（RF） plasma jet generated with the combined electrode configuration was studied. The sub-microsecond DC pulsed discharge was introduced between the pulse-modulated RF discharge bursts. The discharge characteristics and spatio-temporal evolution were investigated through the current voltage characteristics and time resolved imaging. The results show that the introduced DC pulse discharge assists the ignition of RF discharge burst by reducing the ignition voltage of RF discharge burst from 3.86 kV to 1.61 kV. It provides the way to achieve the stable atmospheric RF discharge bursts for potential applications in industries.
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