Survey of electromagnetic and seismic noise related to mine rescue communications. Volume I. Emergency and operational mine communications. Final report, August 1971--December 1973

Technical Report · Tue Jan 01 04:00:00 EST 1974

OSTI ID:7303540

Lagace, R L; Aidala, D A; Emslie, A G; Ginty, J J

Volume I of the report deals with theoretical, experimental, and practical implementation aspects of the U.S. Bureau of Mines programs related to present and planned, emergency and operational, mine communications and miner location systems for underground coal mines. Investigations, evaluations, experiments, and analyses for these programs were made; breadboard and prototype hardware was developed; and assistance was given in the formulation and presentation of technology transfer seminars on mine communications. Major subject areas treated in this volume are: electromagnetic noise and its measurement for mine environments; electromagnetic through-the-earth emergency and operational mine communications and miner location systems; signal propagation characteristics for wireless and guided-wireless radio waves in coal mine tunnels, and for mine hoist shaft and trolley wire communications; a mine pager phone-to-public telephone interconnect; paging and two-way communications with roving miners; technology transfer seminars and a through-the-earth state-of-the-art workshop on electromagnetic mine communications, and selected topics related to the above major areas. (GRA)

• Research Organization: Little (Arthur D.), Inc., Cambridge, MA (USA)
• OSTI ID: 7303540
• Report Number(s): PB-235069/2; ADL-C-73912-(Vol.1)
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
012000* -- Coal
Lignite
& Peat-- Mining
016000 -- Coal
Lignite
& Peat-- Health & Safety
ACCIDENTS
CABLES
COAL MINES
COAXIAL CABLES
COMMUNICATIONS
CONDUCTOR DEVICES
ELECTRIC CABLES
ELECTRICAL EQUIPMENT
ELECTROMAGNETIC RADIATION
EQUIPMENT
MINES
MINING
NOISE
RADIATIONS
SAFETY
SEISMIC NOISE
UNDERGROUND MINING