7 December 2004 Progress in reducing size and cost of trace gas analyzers based on tunable diode laser absorption spectroscopy
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Proceedings Volume 5586, Advanced Environmental, Chemical, and Biological Sensing Technologies II; (2004); doi: 10.1117/12.580938
Event: Optics East, 2004, Philadelphia, Pennsylvania, United States
Abstract
Trace gas analysis by near-infrared Tunable Diode Laser Absorption Spectroscopy (TDLAS) has evolved over the past decade from a laboratory specialty to an accepted, robust, and reliable industrial process monitoring and control technology. Early industrial-quality TDLAS analyzers occupied full instrumentation racks and frequently cost several hundred thousands of dollars to purchase and install. The technology has now been refined to the point where complete TDLAS analyzers are available in lightweight battery-operated packages similar to a smoke detector that cost a few thousand dollars. This paper summarizes the current state-of-the-art in near-IR TDLAS sensors, focusing on miniature low-cost devices, and some of their applications.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M. B. Frish, R. T. Wainner, B. D. Green, J. Stafford-Evans, M. C. Laderer, M. G. Allen, "Progress in reducing size and cost of trace gas analyzers based on tunable diode laser absorption spectroscopy", Proc. SPIE 5586, Advanced Environmental, Chemical, and Biological Sensing Technologies II, (7 December 2004); doi: 10.1117/12.580938; http://dx.doi.org/10.1117/12.580938
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KEYWORDS
Sensors

Absorption

Process control

Control systems

Oxygen

Signal processing

Gases

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