OFR-86-78 Further Analytical Investigations Of Electromagnetic Fields In Mine Environments - Analysis Of Radio Frequency Transmission In A Semi-Circular Mine Tunnel Containing Two Axial Conductors
- Organization:
- The National Institute for Occupational Safety and Health (NIOSH)
- Pages:
- 273
- File Size:
- 34108 KB
- Publication Date:
- Jan 1, 1978
Abstract
We present an analysis of the propagation in a uniform tunnel of semi -circular cross section that contains two axial conductors. In particular, we show that, even if one of these conductors has high ohmic loss, one of the two propagating modes has relatively low attenuation. This corresponds to the situation where an unloaded dedicated wire is used to improve radio frequency communication in a mine tunnel that contains a heavily loaded trolley wire.
Citation
APA: (1978) OFR-86-78 Further Analytical Investigations Of Electromagnetic Fields In Mine Environments - Analysis Of Radio Frequency Transmission In A Semi-Circular Mine Tunnel Containing Two Axial Conductors
MLA: OFR-86-78 Further Analytical Investigations Of Electromagnetic Fields In Mine Environments - Analysis Of Radio Frequency Transmission In A Semi-Circular Mine Tunnel Containing Two Axial Conductors. The National Institute for Occupational Safety and Health (NIOSH), 1978.