Browse > Article
http://dx.doi.org/10.4283/JMAG.2013.18.1.043

Pulsed Ferrite Magnetic Field Generator for Through-the-earth Communication Systems for Disaster Situation in Mines  

Bae, Seok (Department of Electrical and Computer Engineering and MINT Center, The University of Alabama)
Hong, Yang-Ki (Department of Electrical and Computer Engineering and MINT Center, The University of Alabama)
Lee, Jaejin (Department of Electrical and Computer Engineering and MINT Center, The University of Alabama)
Park, Jihoon (Department of Electrical and Computer Engineering and MINT Center, The University of Alabama)
Jalli, Jeevan (Department of Electrical and Computer Engineering and MINT Center, The University of Alabama)
Abo, Gavin S. (Department of Electrical and Computer Engineering and MINT Center, The University of Alabama)
Kwon, Hyuck M. (Department of Electrical Engineering and Computer Science, Wichita State University)
Jayasooriya, Chandana K.K. (Department of Electrical Engineering and Computer Science, Wichita State University)
Publication Information
Journal of Magnetics / v.18, no.1, 2013 , pp. 43-49 More about this Journal
Abstract
A pulsed ferrite magnetic field generator (FMFG) was designed for the use in the 1000 m long through-the-earth (TTE) communication system for mining disaster situations. To miniaturize the TTE system, a ferrite core having 10,000 of permeability was used for the FMFG. Attenuation of the magnetic field intensity from the FMFG (200-turn and 0.18 m diameter) was calculated to be 89.95 dB at 1000 m depth soil having 0.1 S/m of conductivity. This attenuation was lower than 151.13 dB attenuation of 1 kHz electromagnetic wave at the same conditions. Therefore, the magnetic-field was found to be desirable as a signal carrier source for TTE communications as compared to the electromagnetic wave. The designed FMFG generates the magnetic field intensity of $1{\times}10^{-10}$ Tesla at 1000 m depth. This magnetic field is detectable by compact magnetic sensors such as flux gate or magnetic tunneling junction sensor. Therefore, the miniature FMFG TTE communication system can replace the conventional electromagnetic wave carrier type TTE system and allow reliable signal transmission between rescuer and trapped miners.
Keywords
ferrite helical loop antenna; through-the-earth (TTE) communication; ferrite magnetic field generator (FMFG); disaster in mine;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Y. Fukuda, S. Nagata, and K. Echizenya, J. Magn. Magn. Mater. 279, 325 (2004).   DOI   ScienceOn
2 S. Macmillan, Earth's magnetic field, Geophysics and Geochemistry, in Encyclopedia of Life Support Systems (EOLSS), Developed under the Auspices of the UNESCO, Eolss Publishers, Oxford, UK (2006).
3 http://www.cdc.gov/niosh/mining/statistics/disall.htm; Statistics data by NIOSH, 2009.
4 S. Yarkan, S. Güzelgoz, H. Arslan, and R. R. Murphy, IEEE Communications Surveys & Tutorials 11, 125 (2009).   DOI   ScienceOn
5 W. H. Schiffbauer and J. F. Brune, Symposium on the Capabilities and Availability of Wireless Communication and Tracking Systems for Underground Coal Mines (2006).
6 T. D. Barkand, N. W. Damiano, and W. A. Shumaker, in Proc. IEEE 41st IAS Annual Meeting, pp. 955-958 (2006).
7 J. T. Weaver, Electromagnetic Induction in Thin Sheet Conductivity Anomalies at the Surface of the Earth, Proceeding of the IEEE 67, 1044 (1979).   DOI   ScienceOn
8 C. Portela, J. B. Gertrudes, M. C. Tavares, and J. P. Filho, IEEE/PES Transmission and Distribution Conference and Exposition, Latin America (2004) pp. 941-946.
9 T. J. Sabaka, N. Olsen, and M. E. Purucker, Geophys. J. Int. 158, 521 (2004).
10 C. Bianchi and A. Meloni, Annals of Geophysics 50, 435 (2007).
11 L. A. Dorado and V. Trainotti, IEEE Antennas and Propagation Magazine 49, 58 (2007).   DOI   ScienceOn
12 S. Gotoh, T. Kawano, and N. Soga, Frequency Dependence of the Complex Initial Permeability of MnZn ferrite, Kawasaki Steel Technical Report No. 39, pp. 62-68 (1998).
13 D. B. Large, L. Ball, and A. J. Farstad, IEEE Trans. Comm. 21, 194 (1973).   DOI
14 http://www.varismine.com; Smart Com System by VARIS Mine Technology Ltd. (2009).
15 J. Welsh, Survivable Leaky Feeder Communication System, Presented at the 2009 Workshop of NIOSH (2009).
16 H. Traunmuller and A. Eriksson, The Frequency Range of the Voice Fundamental in the Speech of Male and Female Adults, Retrieved from (1995).
17 G. Leucci, Ground penetrating radar: The Electromagnetic Signal Attenuation and Maximum Penetration Depth, Scholarly Research Exchange, Article ID 926091 (2008).
18 L. J. Chu, J. Appl. Phys. 19, 1163 (1948).   DOI
19 M. Sato, Anti-personnel Landmine Detection for Humanitarian Demining, Springer London (2009) pp. 19-26.
20 H. Friis, Proc. IRE 34, 254 (1946).   DOI
21 D. Ghosh, H. S. Moon, and T. K. Sarkar, IEEE Antennas and Propagation Society International Symposium (APS), 1 (2008).
22 A. Edelstein, J. Phys.: Condens, Mater. 19, 165217 (2007).   DOI   ScienceOn
23 S. Tumanski, Meas. Sci. Technol. 18, R31 (2007).   DOI   ScienceOn