Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2002.05a
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- Pages.172-175
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- 2002
The induced discharge characteristics in atmosphere adopting a pulsed $CO_2$ laser
펄스형 $CO_2$ 레이저를 이용한 기중 침 대 침 전극간의 유도방전 특성
- Jung, Yong-Ho (Dept. of Electrical Engineering PNU) ;
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Choi, Jin-Young
(Dept. of Electrical Engineering PNU) ;
- Lee, Yu-Soo (Dept. of Electrical Engineering PNU) ;
- Chung, Hyun-Ju (Dept. of Electrical Engineering PNU) ;
- Song, Gun-Ju (Dept. of Electrical Engineering PNU) ;
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Kim, Hee-Je
(Dept. of Electrical Engineering PNU)
- 정용호 (부산대학교 전기공학과) ;
-
최진영
(부산대학교 전기공학과) ;
- 이유수 (부산대학교 전기공학과) ;
- 정현주 (부산대학교 전기공학과) ;
- 송건주 (부산대학교 전기공학과) ;
-
김희제
(부산대학교 전기공학과)
- Published : 2002.05.11
Abstract
The technique of induced discharge by a pulsed CO2 laser is being applied to control electrical discharge path, material processing, triggered lightning for protecting the power equipments. In this paper, we have investigated about the characteristics of the induced discharge at atmospheric conditions by using a plasma channel, which is produced when a pulsed CO2 laser radiation is focused by a focusing mirror as a trigger source. A plasma channel produced by laser radiation has an effect on decreasing the threshold voltage and inducing the discharge in both needle electrodes. We have confirmed a delay time between a produced plasma channel and an electrical discharge after laser radiation. We provided the decreased voltage lower than the natural discharge voltage between electrode type of needles and was induced the discharge by forming a plasma channel between them. In this research we could understand the time delay of induced discharge by laser radiation, and the characteristics of the discharge cause by the decrease in the threshold voltage, and the polarity effect by changes of plasma channel positions between two electrodes.
Keywords