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Journal Article
Dual Differential Magnetic Induction Sensor for Magnetic Communication in Extreme Environments
- Authors
- Jang-Yeol Kim, Hyun Joon Lee, Jung Hoon Oh, Kye-Seok Yoon, Jae-Ho Lee, In-Kui Cho
- Issue Date
- 2024-11
- Citation
- 센서학회지, v.33, no.6, pp.399-405
- ISSN
- 1225-5475
- Publisher
- 한국센서학회
- Language
- English
- Type
- Journal Article
- Abstract
- This paper presents a novel dual differential magnetic induction (DDMI) sensor designed as a receiving element for magnetic communication in extreme environments, such as underwater and underground conditions. The DDMI sensor, fabricated on a printed circuit board, uses Ni-Zn soft ferrite as a ferromagnetic core, with pickup coils wound around four ferromagnetic cores. The sensor achieved an equivalent magnetic noise spectral density of less than 1 pT/√Hz at 20 kHz, enabling detection of weak magnetic fields for reliable communication. To demonstrate its feasibility, a DDMI sensor-based communication system was implemented and tested using quadra-ture phase-shift keying modulation in a laboratory setting. Successful demodulation at 20 kHz confirmed the sensor’s potential as a robust solution for magnetic communication in harsh environments.
- KSP Keywords
- Communication system, Equivalent magnetic noise, Extreme environments, Induction sensor, Magnetic communication, Magnetic field, Magnetic induction(MI), Ni-Zn, Noise Spectral Density, Robust solution, Soft ferrite
This work is distributed under the term of Creative Commons License (CCL)
(CC BY NC)
(CC BY NC)
