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Mining Publication: Hybrid Fiber-Optic Electrochemical Carbon Monoxide Monitor
Keywords: Carbon monoxide Fiber optic systems Monitoring U.S. Bureau of Mines
Original creation date: January 1992
Authors: JE Chilton, CR Carpenter
Report of Investigations - January 1992
Download PDF Document (1.44 MB)
NIOSHTIC2 Number: 10011454
U.S. Department of the Interior, Department of the Interior, Bureau of Mines, Report of Investigations 9423, 1992:1-13
The U.S. Bureau of Mines has developed an intrinsically safe carbon monoxide (CO) monitoring system for mines by coupling a Fiber-Optic Data Telemetry (FODT) system with a prototype electrochemical CO monitor. The CO monitoring system can be used in a coal mine as one component of an early fire warning system. This system may be used in belt haulage entries when the entries are used for supplying ventilation air to working places. The FODT accepts a 0.1- to 1.1-V analog signal from the monitor and converts it to pulses (0 to 5 V ) at frequencies from 1.1 to 11 Khz that drive a light-emitting diode (LED). An electrically nonconducting fiber-optic cable carries the LED signal to a remote receiver. The receiver analyzes the incoming light signal and displays the measured CO concentration in parts per million. This report discusses the performance of the fodt system and characteristics of the CO monitor such as response times, linearity, and temperature and pressure effects.
Image of publication Hybrid Fiber-Optic Electrochemical Carbon Monoxide MonitorReport of Investigations - January 1992
Download PDF Document (1.44 MB)
NIOSHTIC2 Number: 10011454
U.S. Department of the Interior, Department of the Interior, Bureau of Mines, Report of Investigations 9423, 1992:1-13
See Also
CO Migration from Trench Blasting in Amherst, New York
Coal-Dust Explosion Tests in the Experimental Mine 1919 to 1924, Inclusive
History of the Mining Program
Monitoring and Removal of CO in Blasting Operations
Optically Powered Remote Gas Monitor
Proceedings of Thru-The-Earth Electromagnetics Workshop
Remote Fiber-Optic Methane Monitor
Remote Monitoring of Mine Seismicity and Earthquakes Using Radio Telemetry, Computers, and the Internet
Safer Mine Hoisting With Conveyance Position and Load Monitoring
Smoke, Carbon Monoxide, and Hydrogen Chloride Production from the Pyrolysis of Conveyor Belting and Brattice Cloth
Page last reviewed: July 16, 2015
Page last updated: July 16, 2015
Content source: National Institute for Occupational Safety and Health, Mining Program
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