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Journal of the Korean Institute of Illuminating and Electrical Installation Engineers

ISO Journal TitleJ Korean Inst. IIIum. Electr. Install. Eng.
Title A Study on the Performance Evaluation of Magnetic Sensors for Shielding Low-Frequency Magnetic Fields
Authors Hak-Yun Choi ; Hee-Jung Roh
DOI http://doi.org/10.5207/JIEIE.2023.37.4.069
Page pp.69-74
ISSN 1225-1135
Keywords Active shielding; AMR; Fluxgate; Magnetic noise; SQUID
Abstract In this paper, a comparative analysis of performance was conducted using three different types of sensors, namely magnetoresistive sensor, a fluxgate, and a SQUID sensor, for shielding a low-frequency magnetic field. A three-axis Helmholtz coil was designed and manufactured for the purpose of sensing and canceling out the magnetic field. Additionally, Dewar was utilized to install the SQUID sensor, which operates in a superconducting state.