Browse > Article
http://dx.doi.org/10.5515/KJKIEES.2007.18.5.553

Telemetering System of Extremely Low Frequency Magnetic Field Intensity  

Yoo, Ho-Sang (Department of Electronics and Computer Engineering, Dankook University)
Wang, Jong-Uk (Department of Electronics and Computer Engineering, Dankook University)
Seo, Geun-Mee (Department of Electronics and Computer Engineering, Dankook University)
Gimm, Yoon-Myoung (Department of Electronics and Computer Engineering, Dankook University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.18, no.5, 2007 , pp. 553-562 More about this Journal
Abstract
In this paper, we designed and implemented the system for telemetering ELF(Extremely Low Frequency) magnetic field intensity. The magnetic field measurement system used a 3-axis magnetic field sensor to measure the magnetic field with isotropy and the equalizer to compensate the frequency characteristic in band. By multiplexing three output signals of the magnetic field sensor in time domain, we got the uniform gain and frequency characteristic among three axes. This system was designed that the magnetic field measurement level range was $0.01{\sim}10.0\;uT$ and the measurement frequency band was $40{\sim}180\;Hz$. The control system would access to the magnetic field measurement system with RF and the maximum access distance was 1.0 km. We confirmed that the measurement level error of the fabricated system was within 5 %. The fabricated system was installed to a golf practice range where a high voltage power transmission line was crossed.
Keywords
Magnetic Field; Telemeter; ELF(Extremely Low Frequency); Isotropic; Exposure;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 김윤명, 김정호, '생체실험용 극저주파 자기장 발생장치의 설계', 한국전자파학회논문지, 14(8), pp. 871-877, 2003년 8월
2 단국대학교, '극 저주파 3축 자계 측정용 소형 프로브 개발', 산업자원부, 2004년
3 ICNIRP, Guidelines, 'Guidelines for limiting exposure to time-varing electric, magnetic, and electromagnetic fields', 1997
4 산업자원부, '전기설비 기술기준', 고시 제2005-1호, 2005년
5 Bruce Carter, 'An audio circuit collection, part 2', Analog Application Journal, Feb. 2001
6 김윤명, 신철재, 홍의석, 이영철, 양승인 옮김, 전자기학, 청문각, 1998년
7 구본철, 유재성, 김윤명, '고주파 자계 환경내(內)에서의 페라이트 코어의 자계 해석', 춘계 마이크로파 및 전파전파학술대회 논문집, 국민대학교, pp. 549-552, 2007년 5월
8 정보통신부, '전자파 인체 보호 기준', 고시 제2001-88호, 2001년
9 정보통신부, '신고하지 아니하고 개설할 수 있는 무선국용 무선기기', 고시 제2005-29호, 2005년
10 한국전자파학회 전자장과 생체관계 연구회, 'www.emf.or.kr'