상세정보
학술대회
A Method of Evaluating Magnetic Field Strength by Correction between Uniform and Non-uniform Field in Near-Field
- 발행일
- 201611
- 출처
- Global Electromagnetic Compatibility Conference (GEMCCON) 2016, pp.1-3
- 협약과제
- 16ZR1100, 무선 E-zone 및 다차원 에너지 집적기술 개발, 조인귀
- 초록
- This paper describes a new method for predicting the magnetic field strength in near-field for complex exposure situations. The measurement of the exposure level for compliance tests at sites close to a current source in the low frequency range is restricted by an abrupt gradient distribution in the field strength, non-uniform characteristics, and spatial averaging of adjacent field values. By applying the concept of calculating the induced current density on or in a human body, the magnetic field strength in near-field can be determined using the measured field strength obtained in far-field. This calculation uses the magnetic flux densities from a current source of infinite line type and the coupling factors determined beforehand. The calculated magnetic field strengths are compared with measurement values. The maximum difference is no more than 0.0174 A/m.
- KSP 제안 키워드
- Coupling Factor, Current source, Far-field, Gradient distribution, Human body, Induced current density, Line type, Magnetic Flux, Magnetic field(MF), Magnetic field strength, Non-uniform characteristics