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2022-08-08
Research on Characteristics of Planar Coil Based on Grounding Grid Breakpoint Magnetic Coupling Detection Method
By
Progress In Electromagnetics Research C, Vol. 122, 121-139, 2022
Abstract
Magnetic coupling detection method, as one of the methods of solving grounding grid breakpoint location problem, has the problem that the size of the transmitting coil is too large to be easily applied to the actual environment detection. In order to reduce the size of the transmitting coil and ensure the effect of breakpoints detection, this paper studies the characteristics of the planar coil based on the method of grounding grid breakpoint magnetic coupling detection. Firstly, a mathematical model of the planar coil magnetically coupled detection grounding grid breakpoint system under high frequency is established. After analyzing the model, factors of affecting the breakpoint detection effect and the high frequency characteristics of the system are derived. Secondly, a simulation model of the magnetically coupled detection grounding grid is established by using HFSS software. The influence of the line width, side length, number of turns and turn spacing of the transmitting coil on the detection effect is studied in detail. Besides, according to the law, the coil size optimization design is carried out. At last, the experimental platform is built to verify the reliability of the simulation and theory. The results show that the detection effect decreases as the line width and side length of the planar coil decrease, but the effect of line width change is small. Increasing the number of turns and turn spacing can improve the coupling coefficient to increase the detection effect, but when the distortion region is located after the parallel resonance point, the distributed capacitance will greatly inhibit the detection effect.
Citation
Weihua Chen, Zhiquan Ye, Shiwei Jin, Shuai Wang, and Haitao Hou, "Research on Characteristics of Planar Coil Based on Grounding Grid Breakpoint Magnetic Coupling Detection Method," Progress In Electromagnetics Research C, Vol. 122, 121-139, 2022.
doi:10.2528/PIERC22041106
http://www.jpier.org/PIERC/pier.php?paper=22041106
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