Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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The Development of Magnetic Field Measurement System of 3 Axis

3축 자계 측정 시스템의 개발

  • Kim, Ki-Joon (Department of Mechatronics Engineering, Incheon National University)
  • 김기준 (인천대학교 메카트로닉스공학과)
  • Received : 2017.02.10
  • Accepted : 2017.02.15
  • Published : 2017.04.01
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Abstract

Nowadays, it is increasingly important to detect whether cables are live for the operator's safety if there is a sudden power failure. It is especially hard to detect the electrical field of an underground line because of shielding. This paper on detection of live-line states in cables studied the detection characteristics of the change in the magnetic field and axis as the frequency, voltage, and distance at the same load are changed using 3 axes. A search coil type was used as a magnetic field sensor with non-contact. We found that magnetic fields decrease proportionally to the square of the distance and the decrease of rated voltage with load effected to magnetic field. The magnetic field was detected by 3-axis sensors given correct proximity, but appeared as noise components beyond a distance of 2 cm.

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References

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