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Waveform generator for (EM) location of trapped miners.

Authors
Collins Radio Group Rockwell International
Source
Cedar Rapids, IA: U.S. Department of the Interior, Bureau of Mines, OFR-9-75, :1-25
NIOSHTIC No.
10008001
Abstract
This report describes a circuit for driving a low-frequency loop antenna from a miner's cap lamp battery. The circuit is a miniature waveform generator and is part of the electromagnetic (em) trapped miner location system. Two engineering models were designed, constructed, and tested, and 50 final production units were fabricated using discrete component construction. A final discrete potted printed circuit configuration was developed that is now ready for field testing.
Keywords
Accident-prevention; Injury-prevention; Coal-miners; Coal-workers; Mine-disasters; Mine-rescue; Miners; Disaster-prevention; Personal-protective-equipment; Safety-equipment; Safety-measures; Safety-monitoring; Safety-research
Publication Date
19740101
Document Type
CP; Final Contract Report
Fiscal Year
1974
NTIS Accession No.
PB-240481
NTIS Price
A03
Identifying No.
OFR-9-75
NIOSH Division
PRC
Source Name
Cedar Rapids, IA: U.S. Department of the Interior, Bureau of Mines, OFR-9-75
State
PA; IA
Performing Organization
Collins Radio Group, Rockwell International
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