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Study on the Atmospheric Plasma Characteristics of Dielectric Barrier Discharge due to a Variation of the Duty Ratio of Pulse Modulation

펄스변조의 듀티비 변경에 따른 DBD 대기압 플라즈마 특성 연구

  • Park, Jong-in (Department of Electrical and Biological Physics, Kwangwoon University) ;
  • Hwang, Sang-hyuk (Department of Electrical and Biological Physics, Kwangwoon University) ;
  • Jo, Tae Hoon (Department of Electrical and Biological Physics, Kwangwoon University) ;
  • Yun, Myoung Soo (Department of Electrical and Biological Physics, Kwangwoon University) ;
  • Kwak, Hyoung sin (Department of Electrical and Biological Physics, Kwangwoon University) ;
  • Jin, Gi nam (R&D Center) ;
  • Jeon, Buil (Department of Electrical and Biological Physics, Kwangwoon University) ;
  • Choi, Eun Ha (Department of Electrical and Biological Physics, Kwangwoon University) ;
  • Kwon, Gi-Chung (Department of Electrical and Biological Physics, Kwangwoon University)
  • 박종인 (광운대학교 전자바이오물리학과) ;
  • 황상혁 (광운대학교 전자바이오물리학과) ;
  • 조태훈 (광운대학교 전자바이오물리학과) ;
  • 윤명수 (광운대학교 전자바이오물리학과) ;
  • 곽형신 (광운대학교 전자바이오물리학과) ;
  • 진기남 ((주)다오닉스 연구소) ;
  • 전부일 (광운대학교 전자바이오물리학과) ;
  • 최은하 (광운대학교 전자바이오물리학과) ;
  • 권기청 (광운대학교 전자바이오물리학과)
  • Received : 2015.05.13
  • Accepted : 2015.10.06
  • Published : 2015.11.27

Abstract

Atmospheric pressure plasma is used in the biological and medical fields. Miniaturization and safety are important in the application of apply atmospheric plasma to bio devices. In this study, we made a small, pocket-sized inverter for the discharge of atmospheric plasma. We used pulse power to control the neutral gas temperature at which the, when plasma was discharged. We used direct current of 5 V of bias(voltage). The output voltage is about 1 to 2 kilo volts the frequency is about 80 kilo hertz. We analyzsed the characteristics of the atmospheric plasma using OES(Optical emission spectroscopy) and the Current-Voltage characteristic of pulse power. By calculating of the current voltage characteristics, we were able to determine that, when the duty ratio increased, the power that actually effects the plasma discharge also increased. To apply atmospheric plasma to human organisms, the temperature is the most important factor, we were able to control the temperature by modulating the pulse power duty ratio. This means we can use atmospheric plasma on the human body or in other areas of the medical field.

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