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Journal of Sensors and Sensor Systems An open-access peer-reviewed journal
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Volume 7, issue 1
J. Sens. Sens. Syst., 7, 421-431, 2018
https://doi.org/10.5194/jsss-7-421-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
J. Sens. Sens. Syst., 7, 421-431, 2018
https://doi.org/10.5194/jsss-7-421-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Regular research article 13 Jun 2018

Regular research article | 13 Jun 2018

Study of different magneto-optic materials for current sensing applications

Sarita Kumari and Sarbani Chakraborty Sarita Kumari and Sarbani Chakraborty
  • Electrical and Electronics Engineering Department, Birla Institute of Technology, Mesra, Ranchi – 835215, Jharkhand, India

Abstract. This article discusses the properties of different diamagnetic and paramagnetic materials for a basic current/magnetic field sensor system set up with different relative orientations of analyzers and polarizers. The paper analyzes linearity ranges of different materials and their sensitivity for different wavelengths. Terbium doped glass (TDG), terbium gallium garnet (TGG), doped TGG and dense flint glass materials are used for analysis based on Faraday's rotation principle. TGG shows high Faraday rotation, temperature stability and high optical quality. Three ranges of the magnetic field have been chosen for performance analysis. The study reveals that doping of praseodymium (Pr3+) on TGG exhibits a better response at 532nm as well as 1064nm wavelengths than TGG. At 632.8nm wavelength, cerium (Ce3+) doped terbium aluminum garnet (TAG) ceramic exhibits better resolution than others. The study has been done for performance analysis of different MO sensors applicable for measurement of various process parameters like current, displacement, and magnetic field.

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This article discusses the properties of different diamagnetic and paramagnetic materials for a basic current/magnetic field sensor system set up with different relative orientations of analyzers and polarizers. The paper analyzes a linearity range of different materials and their sensitivity for different wavelengths. Terbium doped glass, terbium gallium garnet, doped TGG and dense flint glass materials are used for analysis based on the Faraday rotation principle.
This article discusses the properties of different diamagnetic and paramagnetic materials for a...
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