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Development of a Continuous Methane Monitor.

Authors
Burough-IG
Source
NTIS: PB/82-244245 :45 pages
Link
NIOSHTIC No.
10002462
Abstract
Two prototype continuous methane monitors capable of being mounted on a mining machine were designed and built for in-mine safety use. The monitors incorporated a nondispersive infrared optical- electronic analyzer design in which the response to the sample gas was achieved by synchronous detection and measurement of the amplitude oscillations of the transmitted energy from an infrared source caused by the pressure modulation of the sample gas within the optical cell. Zero and span stability were to be achieved by the amplitude modulating of the infrared source and using the detected signal to correct for optical-electronic system variation. This design effort was to simplify and reduce the cost of the major components while eliminating the need for daily calibration.
Publication Date
19810101
Document Type
CP; Final Contract Report;
Fiscal Year
1981
NTIS Accession No.
PB82-244245
NTIS Price
A04
Identifying No.
OFR 93-82
NIOSH Division
PRC;
Source Name
NTIS: PB/82-244245
Performing Organization
Andros Analyzers, Inc.
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