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Study of generation characteristics of glow-type atmospheric-pressure plasma jet based on DC discharge in air 被引量:2
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作者 Wenzheng LIU qingtian zheng +2 位作者 Mingchao HU Luxiang ZHAO Zhiyi LI 《Plasma Science and Technology》 SCIE EI CAS CSCD 2019年第12期40-49,共10页
In order to form an atmospheric-pressure plasma jet without airflow, a needle–ring electrode structure is proposed in this paper. When heteropolar potentials are applied to a needle and a ring, a marked electric fiel... In order to form an atmospheric-pressure plasma jet without airflow, a needle–ring electrode structure is proposed in this paper. When heteropolar potentials are applied to a needle and a ring, a marked electric field strength enhancement around the needle’s pointed end has been found. When the same potential is applied to both the needle and the ring, the lateral electric field strength for the needle can be weakened. By using the above two methods, an increase of the difference between the pointed end electric field strength and the lateral one is achieved and stable plasma jets are formed. A symmetrical space electric field distribution is established at the pointed end of the needles when several sets of heteropolar needle–ring electrodes are uniformly arranged, which is conducive to forming a uniform array plasma jet. Under DC discharge conditions, a safe and stable plasma jet of high density and an array plasma jet are successfully achieved. 展开更多
关键词 DC discharge space electric field ATMOSPHERIC-PRESSURE air plasma JET array JET
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