Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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An Experimental Study on the Effects of Spark Plug on the Strength of Electromagnetic Waves Radiating at the Spark Ignition System

불꽃 점화시스템에서 복사되는 전자파의 세기에 스파크 플러그가 미치는 영향에 대한 실험적 연구

  • Choe, Gwang-Je (Department of Electrical & Electronic Engineering, Halla University) ;
  • Jho, Shi-Gie (School of Mechanical and Automotive Engineering, Halla University) ;
  • Jang, Sung-Kuk (School of Mechanical and Automotive Engineering, Halla University)
  • 최광제 (한라대학교 전기전자공학과) ;
  • 조시기 (한라대학교 기계자동차공학부) ;
  • 장성국 (한라대학교 기계자동차공학부)
  • Published : 2007.11.01
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Abstract

This paper, we analyzed that the measured data of the radiated power spectrum of electromagnetic waves and the standing wave ratio(SWR) of the spark plug cable and spark plug. The measured data are the power strength of the electromagnetic waves radiated from the spark ignition system, the measured frequency ranges are 110 to 610MHz. The results show that the strength of radiated power spectrum and bandwidth have relation to the SWR of the the spark plug cable and spark plug, and the SWR of them is different because of the characteristics of resistor at the spark plug is different with the manufacturers. From the analyzed results, it can be concluded that the less SWR is little, the less maximum level of power spectrum is weak and bandwidth above the reference level is small.

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References

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