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http://dx.doi.org/10.4313/JKEM.2017.30.4.253

The Development of Magnetic Field Measurement System of 3 Axis  

Kim, Ki-Joon (Department of Mechatronics Engineering, Incheon National University)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.30, no.4, 2017 , pp. 253-257 More about this Journal
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.
Keywords
Magnetic field; 3 axis; Measurement system; Underground cable; Search coil sensor;
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