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Mining Publication: Remote Fiber-Optic Methane Monitor
Keywords: Fiber optic systems Methane Methane monitors Monitoring
Original creation date: January 1992
Authors: TH Dubaniewicz, JE Chilton
Report of Investigations - January 1992
Download PDF Document (1.17 MB)
NIOSHTIC2 Number: 10011221
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 9407, 1992 Jan; :1-8
Fiber-optic technology is progressing rapidly, including the development of fiber-optic sensors for many applications. These sensors have the advantages of high sensitivity, light weight, small size, high bandwidth, and freedom from electromagnetic influences. The U.S. Bureau of Mines is investigating the use of fiber-optic technology to monitor mine atmospheres. This report describes a methane monitor based on differential absorption of infrared light. The monitor can detect methane concentrations as low as 0.2 Vol pct as far away as 2 km via fiber-optic cable. The upper range is 100 vol pct methane. Since the system requires no electrical power within the mine, it is intrinsically safe.
Image of publication Remote Fiber-Optic Methane MonitorReport of Investigations - January 1992
Download PDF Document (1.17 MB)
NIOSHTIC2 Number: 10011221
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 9407, 1992 Jan; :1-8
See Also
Adapting Remote Methane Leak Detector (RMLD) to Coal Miner Rescue
Evaluating Performance Characteristics of Machine-Mounted Methane Monitors by Measuring Response Time
Evaluation of Person-Wearable Methane Monitors
Factors Affecting the Location of Methanometers on Mining Equipment
Ignition of Methane-Air Mixtures by Laser Heated Small Particles
Lasers
Methane Detection and Monitoring
Methane Emission Rate Studies in a Northern West Virginia Mine
Methane-Air Mixtures Ignited by CW Laser-Heated Targets on Optical Fiber Tips: Comparison of Targets, Optical Fibers, and Ignition Delays
Remote Methane Sensors
Use of a Test Box to Measure Response Times for Machine-Mounted Monitors
Page last reviewed: September 21, 2012
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
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