환형무전극형광램프의자계분포해석과광학적특성에관한연구

TheMagneticFieldDistributionAnalysisandOpticalCharacteristicsfortheRing-ShapedElectrodelessFluorescentLamp.

  • 조주웅 (원광대전자재료공학과석사과정) ;
  • 이종찬 (금호전기㈜) ;
  • 최용성 (원광대전기전자및정보공학) ;
  • 김용갑 (원광대전기전자및정보공학) ;
  • 박대희 (원광대전기전자및정보공학부)
  • 발행 : 2005.06.01

초록

Recently, the RF inductive discharge or inductively coupled plasma continues to attract growing attention as an effective plasma source in many industrial applications, the best known of which are plasma processing and lighting technology. To the point of lighting sources, the ring-shaped electrodeless fluorescent lamps utilizing an inductively coupled plasma have been objects of interest and research during the last decades, mainly because of their potential for extremely long life, high lamp efficacies, rapid power switching response. In this paper, maxwell 3D finite element analysis program (Ansoft) was used to obtain electromagnetic properties associated with the coil and nearby structures. The electromagnetic emitting properties were presented by 3D simulation software operated at 250 kHz and some specific conditions. The electromagnetic field in the ferrite core was shown to be high and symmetric. An LS-100 luminance meter and a Darsa-2000 spectrum analyzer were used in the experiment. According to data on the lamp tested using high magnetic field ferrite, the optical and thermal wave fields were shown to be high around the ring-shaped electrodeless fluorescent lamp. The optical or light field was high at the center of the bulb rather than around the ferrite core. The light conditions of the bulb were assumed to be complex, depending on the condition of the filler gas, the volume of the bulb, and the frequency of the inverter. Our results have shown coupling between the gas plasma and the field of the light emitted to be nonlinear.

키워드

참고문헌

  1. Brian cook, 'New developments and future trends in high-efficiency lighting', The International Journal of Engineering Education, Vol. 9, pp. 207-217, 2000 https://doi.org/10.1049/esej:20000504
  2. V.A. Godyak, 'Bright idea : Radio-Frequency Light Sources', IEEE Industry Appl. Magazine, pp42-49, 2002 https://doi.org/10.1109/2943.999612
  3. G. G Lister, J. J Curry, J. E Lawler, 'Power balance in highly loaded fluorescent lamps', J. Phys. D Appl. Phys. Vol. 37, pp. 3099-3106, 2004 https://doi.org/10.1088/0022-3727/37/22/007
  4. Y. Aiura, J. E Lawler, 'A study of radial cataphoresis and ion densities in high power density Hg - Ar discharges', J. Phys. D Appl. Phys. Vol. 37, pp. 3093-3098, 2004 https://doi.org/10.1088/0022-3727/37/22/006
  5. Wharmby, D.O., 'Electrodeless lamps for lighting: a review', Science Measurement and Technology, IEE Proceedings A, Vol. 140, pp.465-473, 1993 https://doi.org/10.1049/ip-a-3.1993.0071
  6. V. A. Godyak, K. Ohata., 'Radio Frequency Light Sources', Industry Applications Conference, Conference Record of the 2002 IEEE, Vol. 5, pp. 3281-3288, 2000 https://doi.org/10.1109/IAS.2000.882636
  7. 구선근, 박기준, 추장희, '전구내 Nal 첨가에 의한 무전극 황전등의 특성 변화', KIEE, Vol.48C, n.11, pp.724-729, 1999
  8. 추장희, 구선근, 박기준, 이영우, '무전극 황망전등에서 고압 이원자 황($S_2$)의 자체 역전 효과', KIEE11, Vol. 49C, n. 11, pp. 609-615, 2000
  9. 정수현, 이종섭, 홍종국, 채홍인, 윤만순, 임기조, 'CCFL 구동용 압전 변압기의 특성', KIEE Vol. 49C, n. 5, pp. 259-264, 2000
  10. Engen Statnic, 'Engineering Limits for Inductively Coupled Fluorescent Electrodeless Lamps', Proceeding of the 10th International Symposium on the Science and Technology of Light Soureces, pp. 334-336, 2004
  11. R. B. Piejak, V. A. Godyak, B. M. Alexandrovich, 'A simple analysis of an inductive RF discharge', Plasma Sources Science Technology, Vol. 1, pp.179-186, 1992 https://doi.org/10.1088/0963-0252/1/3/006
  12. J. T. Gudmundsson, M. A. Lieberman, 'Magnetic induction and plasma impedance in a cylindrical inductive discharge', Plasma Sources Science Technology, Vol. 6, pp.540-550, 1997 https://doi.org/10.1088/0963-0252/6/4/012
  13. I. M. EI-Fayoumi, I. R. Jones, 'The electromagnetic basis of the transformer model for an inductively coupled RF plasma source', Plasma Sources Science Technology, Vol. 7, pp.179-185, 1998 https://doi.org/10.1088/0963-0252/7/2/012
  14. Eugen Statnic and Valentin Tanach, 'A new approach to the evaluation of the discharge parameters of the electrodeless fluorescent lamps', Plasma Sources Science and Technolgy. 13, pp. 515-521, 2004 https://doi.org/10.1088/0963-0252/13/3/018
  15. J. R. Coaton and A. M. Marsden, 'Lamp and Lighting', New York: John Wiley & Sons, pp216-226, 1997
  16. 이진우, '低壓放電램프의 電氣的 特性 모델링', 서울대 박사학위 논문, 1990