Fiber-optic powered remote gas monitor.
Dubaniewicz-TH Jr.; Chilton-JE
Proc SPIE - Optical Engineering Midwest '95, May 18-19, 1995, Chicago, Illinois. Guzik RP, ed. Bellingham, WA: International Society for Optical Engineering (SPIE), 1995 Aug; 2622:285-291
Many mines rely on toxic gas sensors to help maintain a safe and healthy work environment. This report describes a prototype monitoring system developed by the US Bureau of Mines that uses light to power and communicate with several remote electrochemical toxic gas sensors. The design is based on state-of-the-art optical-to-electrical power converters, solid- state diode lasers, and fiber optics. This design overcomes several problems associated with conventional wire-based systems by providing complete electrical isolation between the remote sensors and the central monitor. The prototype accurately monitored three remote gas sensors during a two-week field trial in the USBM Pittsburgh Research Center Safety Research Coal Mine.
Mining; Mining industry; Underground mining; Underground mines; Sensors; Monitors; Monitoring systems; Gas detectors; Gases; Surveillance; Lasers;
Author Keywords: Fiber optics; Sensors; Toxic gases; Surveillance systems; Gas sensors; Safety; Semiconductor lasers
Proceedings of SPIE - Optical Engineering Midwest '95, May 18-19, 1995, Chicago, Illinois