Abstract
The existing research direction focuses on non-metallic magnetic field sensors based on Faraday effect. The relationship between the structure and performance of such sensors is not clear. Therefore, this paper simulates the structural parameters of non-metallic magnetic field sensors based on Faraday effect. The main structures include magneto-optical crystals, polarizers and polarizers. The effects of the length of magneto-optical crystals, the initial angle between polarizers and polarizers, and the material of magneto-optical crystals on the range and sensitivity of magnetic flux leakage sensors are compared and analyzed. It is concluded that as the length of magneto-optical crystals decreases, the range increases, and the maximum range is 4 T when the initial angle between polarizers and polarizers is 45°. The range of magneto-optical crystal material TGG is 42.5% larger than that of TSAG, and the corresponding sensitivity is 60.3% smaller. In practical engineering, the selection of non-metallic magnetic field sensors with appropriate structural parameters is conducive to the use in scenarios requiring large range and high sensitivity.
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Acknowledgements
This research was funded by the Science and Technology Project of SGCC (No. 5206002000D6, Research on key technologies of leakage magnetic field and stress field sensing for power transformer transparency).
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Huang, M., Lv, H., Zhang, L., Qi, B. (2024). Structural Parameters on the Performance of Magnetic Field Sensor Based on Faraday Effect. In: Dong, X., Cai, L. (eds) The Proceedings of 2023 4th International Symposium on Insulation and Discharge Computation for Power Equipment (IDCOMPU2023). IDCOMPU 2023. Lecture Notes in Electrical Engineering, vol 1100. Springer, Singapore. https://doi.org/10.1007/978-981-99-7393-4_39
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DOI: https://doi.org/10.1007/978-981-99-7393-4_39
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