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Summary report of operational communications working group
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Published Date:
1973
Source:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 202-217Series:Language:English - File Format:
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Main Document Checksum:urn:sha256:b33734c1a36faaf403e1aa27f4879401e2d096828c8c00ae1ce89e51d10ecbf8
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Personal Author:Rankin, DavidConference Authors:Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines)Published Date:1973Source:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 92-94Series:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of MinesDescription:Three -dimensional boundary value problems are difficult to solve. Indeed, while the separation of the scalar wave equation can be effected in 11 diff...
Personal Author:Jones, F. W.Conference Authors:Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines)Published Date:1973Source:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 86-91Series:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of MinesDescription:The perturbation of alternating electromagnetic fields by three-dimensional structures is considered. The general model is that of a semi-infinite con...
Personal Author:Farstad, Arnold J.Conference Authors:Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines)Published Date:1973Source:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 62-72Series:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of MinesDescription:The use of radio signals for underground communications was considered as early as the mid-1920's [1] - [4] . However, early experiments did not produ...
Personal Author:Dolphin, Lambert ; Bollen, Robert ; ...Conference Authors:Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines)Published Date:1973Source:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 168Series:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of MinesDescription:An electromagnetic sounder developed for an archaeological application in Egypt has been successfully tested in a California dolomite mine. Chambers i...
Personal Author:Fontaine, J. ; Demoulin, B. ; ...Conference Authors:Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines)Published Date:1973Source:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 130-139Series:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of MinesDescription:To realize a radiowave communication along mine galleries a few kilometers long without repeater, we show that it is possible to use a coaxial cable b...
Personal Author:Parkinson, Howard E.Conference Authors:Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines)Published Date:1973Source:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 1-8Series:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of MinesDescription:In 1969, new coal mine health and safety legislation was enacted in the United States. As a result of this legislation, the Department of Interior, Bu...
Personal Author:Wait, James R.Conference Authors:Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines)Published Date:1973Source:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 9-14Series:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of MinesDescription:It is the purpose of this paper to review theoretical model concepts in through- the -earth transmission of electromagnetic waves. While the subject i...
Personal Author:Adams, John W.Conference Authors:Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines)Published Date:1973Source:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 169Series:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of MinesDescription:The present status of the National Bureau of Standards program is that many magnetic tapes of analog data have been recorded in four major mines. Each...
Personal Author:Gabillard, R. ; Dubus, J. P. ; ...Conference Authors:Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines)Published Date:1973Source:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 121-129Series:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of MinesDescription:We present an electromagnetic method taken from the well known radiogoniometer that allows us to locate at the surface of the ground the vertical axis...
Personal Author:Emslie, Alfred G. ; Lagace, Robert L. ; ...Conference Authors:Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines)Published Date:1973Source:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 38-48Series:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of MinesDescription:This paper is concerned with the theoretical study of UHF radio communication in coal mines, with particular reference to the rate of loss of signal s...
Personal Author:Geyer, Richard G.Conference Authors:Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines)Published Date:1973Source:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 20-33Series:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of MinesDescription:One aspect of a program to improve the chances of survival following coal mine disasters is the development of a communications system which will allo...
Personal Author:Delogne, P. ; Deryck, L. ; ...Conference Authors:Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines)Published Date:1973Source:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 48-53Series:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of MinesDescription:So far as the propagation of electromagnetic waves is concerned, an underground tunnel behaves like a pipe or hollowed waveguide. Waves propagate in t...
Personal Author:Lewis, Richard L.Conference Authors:Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines)Published Date:1973Source:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 98-103Series:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of MinesDescription:This is a discussion of the application of the zonal harmonic series to problems involving dipole sources in the vicinity of spherical boundaries. The...
Personal Author:Franceschetti, GiorgioConference Authors:Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines)Published Date:1973Source:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 162-167Series:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of MinesDescription:Explicit expressions are presented for the input admittance and effective height of several buried metal antennas, namely: (i) prolate spheroidal; (ii...
Personal Author:Starkey, D. B.Conference Authors:Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines)Published Date:1973Source:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 140-148Series:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of MinesDescription:nvestigation into the expressions of the field produced by a loop over a conducting half space or in an infinite conducting half space are well docume...
Personal Author:Bannister, Peter R. ; Williams, Frederick J. ; ...Conference Authors:Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines)Published Date:1973Source:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 162-167Series:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of MinesDescription:During the last week in March and the first week in April, 1973, the Naval Underwater Systems Center measured the 76 Hz magnetic field strength (in Wi...
Personal Author:Goddard, Arthur E.Conference Authors:Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines)Published Date:1973Source:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 54-61Series:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of MinesDescription:Radio propagation measurements were conducted in a coal mine at UHF (200 to 1000 MHz) and VLF (1 to 50 kHz) to characterize the transmission loss of i...
Personal Author:Farstad, Arnold J.Conference Authors:Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines)Published Date:1973Source:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 171-177Series:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of MinesDescription:The Location Group conversed in the Petroleum Room of the Green Center with the purpose of addressing the following list of topics in light of the Bur...
Personal Author:Hill, D. A. ; Wait, J. R. ;Conference Authors:Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines)Published Date:1973Source:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 81-85Series:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of MinesDescription:The feasibility of locating a buried vertical magnetic dipole source (horizontal loop) from surface measurements of the vertical and horizontal magnet...
Personal Author:Moffatt, David L.Conference Authors:Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines)Published Date:1973Source:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 112-120Series:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of MinesDescription:Considerable current interest is evident[l,2] in the use of transient electromagnetic methods for subsurface remote sensing. A transient method is dis...
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Personal Author:Rankin, DavidConference Authors:Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines)Published Date:1973Source:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 92-94Series:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of MinesDescription:Three -dimensional boundary value problems are difficult to solve. Indeed, while the separation of the scalar wave equation can be effected in 11 diff...
Personal Author:Jones, F. W.Conference Authors:Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines)Published Date:1973Source:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 86-91Series:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of MinesDescription:The perturbation of alternating electromagnetic fields by three-dimensional structures is considered. The general model is that of a semi-infinite con...
Personal Author:Farstad, Arnold J.Conference Authors:Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines)Published Date:1973Source:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 62-72Series:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of MinesDescription:The use of radio signals for underground communications was considered as early as the mid-1920's [1] - [4] . However, early experiments did not produ...
Personal Author:Dolphin, Lambert ; Bollen, Robert ; ...Conference Authors:Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines)Published Date:1973Source:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 168Series:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of MinesDescription:An electromagnetic sounder developed for an archaeological application in Egypt has been successfully tested in a California dolomite mine. Chambers i...
Personal Author:Fontaine, J. ; Demoulin, B. ; ...Conference Authors:Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines)Published Date:1973Source:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 130-139Series:Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of MinesDescription:To realize a radiowave communication along mine galleries a few kilometers long without repeater, we show that it is possible to use a coaxial cable b...Exit Notification/Disclaimer Policy
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