Multicomponent gas analyzers based on tunable diode lasers

Conference · Tue Dec 31 04:00:00 EST 1996

OSTI ID:492277

Stepanov, E V; Zyrianov, P V; Khusnutdinov, A N; Kouznetsov, A I; Ponurovskii, Y Ya ^[1]

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1. Russian Academy of Science, Moscow (Russian Federation). Inst. of General Physics

A family of multicomponent gas analyzers based on tunable diode lasers (TDL) are presented including: an open optical path 3-component gas analyzer for monitoring atmosphere pollution; a 4-gas component analyzer with a multipass cell, a multichannel TDL system with multipass cell and MIR fiber optics delivery, and a multichannel TDL analyzer for breath content gas analysis. A4B6 tunable diode lasers of different spectral region from 4 to 12 micron were used in every channel of the analyzers to obtain atmospheric transmission spectra and to measure concentration of studied gases. Main gaseous atmospheric pollutants like CO, NO, NH{sub 3}, CH{sub 4}, SO{sub 2}, etc. and some of breath gases could be measured at ppb concentration level in real time with these systems depending on customers requirements. The analyzers are driven by IBM compatible PC. The first results on field monitoring tests as well as on their application to human exhalation content analysis and human exposure monitoring are presented.

• OSTI ID: 492277
• Report Number(s): CONF-960848--; ISBN 0-8194-2223-1
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
AIR POLLUTION MONITORING
AIR POLLUTION MONITORS
AMMONIA
CARBON MONOXIDE
DESIGN
FIELD TESTS
LASER SPECTROSCOPY
METHANE
NITRIC OXIDE
SULFUR DIOXIDE