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Electromagnetic technique for locating boreholes.

Authors
Sacks-HK
Source
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 8302, 1978 Jan; :1-14
NIOSHTIC No.
10001248
Abstract
The Bureau of Mines has developed hardware for electromagnetic (EM) detection and location of miners trapped in underground coal mines. This report describes a technique for using the developed equipment for locating uncased boreholes underground. Results of several field and laboratory experiments are described.
Keywords
Mining-industry; Electromagnetic-energy; Electromagnetic-fields; Electromagnetic-radiation; Underground-mining; Radio-waves; Coal-mining; Emergency-response; Mine-rescue
Publication Date
19780101
Document Type
IH; Report of Investigations
Fiscal Year
1978
NTIS Accession No.
PB-288191
NTIS Price
A03
Identifying No.
RI-8302
NIOSH Division
PRC
Source Name
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 8302
State
PA
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