Electromagnetic location system for trapped miners

@inproceedings{Nessler1999ElectromagneticLS,
  title={Electromagnetic location system for trapped miners},
  author={N. Nessler},
  booktitle={Optics & Photonics},
  year={1999}
}
Electromagnetic signals in very low frequency range (VLF, below 10kHz) can penetrate rock sufficiently in order to locate a miner with nearly no disturbance of the field structure, if the near field condition is fulfilled. The relevant solutions of Maxwell's equations for a magnetic dipole (transmitting antenna to be carried by the miner) in a dissipative medium then are independent of the medium. From these equations the magnetic field strength at any point of reception can be calculated. The… CONTINUE READING

Citations

Publications citing this paper.
SHOWING 1-5 OF 5 CITATIONS

Mine Safety Technology and Training Commission

VIEW 2 EXCERPTS
CITES BACKGROUND
HIGHLY INFLUENCED

Localization in 2D Using Beacons of Low Frequency Magnetic Field

  • IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
  • 2013
VIEW 3 EXCERPTS
CITES BACKGROUND

Localization in 3-D Using Beacons of Low Frequency Magnetic Field

  • IEEE Transactions on Instrumentation and Measurement
  • 2013
VIEW 1 EXCERPT
CITES BACKGROUND

References

Publications referenced by this paper.
SHOWING 1-9 OF 9 REFERENCES

A physe difference of arrival technique for locating trapped miners , IEEE southeastcon

G. HopkinsW.
  • 1983

Trapped miner through the earth communication in coal mines

D. Kavels, J. FarstadA.
  • Proc . Ofthe 4 th wvu Conf . on Coal Mines Electrotechnology
  • 1978

Electromagnetic direction fmding experiments for location oftrapped miners

G. OlsenR., J. FarstadA.
  • IEEE Trans . Geosci . Electron .
  • 1973

Theoretical and experimental studies of VLF and LF waves , Scientific report , US - Governm

W. Bitterlich
  • 1971