A Magnetic Field Canceling System Design for Diminishing Electromagnetic Interference to Avoid Environmental Hazard

• Published in: International journal of environmental research and public health Vol. 19; no. 6; p. 3664
• Main Authors: Song, Yu-Lin, Lin, Hung-Yi, Manikandan, Saravanan, Chang, Luh-Maan
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 19-03-2022; MDPI
• Subjects: Design; Electromagnetic Fields; Electromagnetic interference; Embedded systems; Environmental hazards; Etching equipment; Foundries; Frequency ranges; Health care; Magnetic Fields; Manufacturing; Manufacturing industry; Mathematical models; Noise; Permeability; Power lines; Receivers & amplifiers; Sensors; Systems design; Technology; high-tech facilities; passive magnetic cancelling; active magnetic cancelling; extremely low-frequency magnetic field (ELFMF)
• ISSN: 1660-4601; 1661-7827; 1660-4601
• DOI: 10.3390/ijerph19063664

Electromagnetic interference is a serious and increasing form of environmental pollution, creating many issues in the areas of health care and industrial manufacturing. The performance of high-precision measurement equipment used in health care and the manufacturing industry is sensitive to electromagnetic interference. However, extremely low-frequency magnetic fields (ELFMF), with a frequency range from 3 to 30 Hz, generated by high-power lines have become the main interference source in high-tech foundries. This paper presents a magnetic cancelling system that works by combining active cancelling technology and passive cancelling technology to reduce the ELFMF around high-precision measurement equipment. The simulation and experimental results show the validity and feasibility of the proposed system.