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Journal Article
Experimental Assessment of a Three-Axis Magnetic Induction Sensor for Magnetic Field Communication
- Authors
- Jang-Yeol Kim, In-Kui Cho, Hyun Joon Lee, Jung Hoon Oh, Kye-Seok Yoon, Jae-Ho Lee
- Issue Date
- 2025-07
- Citation
- Journal of Sensor Science and Technology, v.34, no.4, pp.251-260
- ISSN
- 1225-5475
- Publisher
- Korean Sensors Society
- Language
- English
- Type
- Journal Article
- Abstract
- A novel three-axis magnetic induction (MI) sensor is proposed as a receiving element for mid-to-long-range magnetic field communication in harsh environments, such as underwater and underground conditions. The sensor provides omni-directional reception of transmitted signals without requiring orientation information of the transmitter, effectively overcoming the directional limitations of single-or two-axis MI sensors. It achieves an equivalent magnetic noise spectral density (EMNSD) less than 0.5 pT/ √Hz at 20 kHz, enabling the detection of weak magnetic fields for reliable communication. A communication test was conducted using quadrature phase-shift keying (QPSK) modulation scheme in a laboratory setting to evaluate its feasibility. Experimental results confirmed successful reception and demodulation of both textual and image data signals at 20 kHz, with a maximum data rate of 12 kbps achieved for text transmission.
This work is distributed under the term of Creative Commons License (CCL)
(CC BY NC)
(CC BY NC)
