Practical gas analysis using tunable diode laser spectography
By Ian Fraser, Rand Technical Services
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Electricity+Control, March 2013 (pages 46 - 47)
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There is a growing awareness of the need to eliminate, or at least reduce, emissions from chemical combustion and other processes in industry. In addition, many processes require accurate gas measurement to prevent adverse effects on the process. From this arises a requirement to accurately detect and measure the amount of a specific gas in a multiple gas environment. This has always presented a challenge to the instrument engineer. Traditionally, a variety of probes of various kinds have been used for gas measurement. All difficulties with measuring devices can be overcome by the use of Tunable Diode Laser Spectroscopy (TDLS).
- There is a growing awareness of the need to eliminate, or at least reduce, emissions from chemical combusion and other processes in industry.
- In order to quantify emission reduction, it is necessary to undertake very accurate gas analysis.
- Tunable laser spectroscopy provides a viable means of accurately detecting gases, and has been shown to work exceptionally well at a South African steel plant.