Record Display for the EPA National Library Catalog


Main Title Optically Powered Remote Gas Monitor.
Author Dubaniewicz, T. H. ; Chilton, J. E. ;
CORP Author Bureau of Mines, Pittsburgh, PA. Pittsburgh Research Center.
Publisher 1995
Year Published 1995
Report Number BUMINES-RI-9558;
Stock Number PB95-236808
Additional Subjects Gas detectors ; Toxic substances ; Coal mines ; Safety ; Air pollution monitoring ; Optical equipment ; Remote sensing ; Prototypes ; Field tests ; Performance evaluation ;
Library Call Number Additional Info Location Last
NTIS  PB95-236808 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 13p
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 U.S. Bureau of Mines (USBM) 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 deisgn overcomes several problems associated with conventional wire-based systems by providing complete electrical isolation between the remote sensors and the central monitor. The prototype performed well during a two-week field trial in the USBM Pittsburgh Research Center Safety Research Coal Mine.