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Implementation of open-path measurement techniques

Abstract : For a long time INERIS has carried out metrological tests on automatic devices used in air quality monitoring networks. In France the standard text NF X 20-300 drives the evaluations in terms of the following metrological features : response time, linearity, limits, drift, ... In order to apply this text, the instruments have been fed with reference mixtures of gases in several reproducible concentrations. Compliance with this requirement is quite easy to obtain, in the case of conventional techniques, but the problems remain with optical remote sensing instruments. Indeed, it is impossible to manufacture a measurement cell as long as the optical path (greater than 100 meters). This difficulty can be solved by using the Beer-Lambert law indicating that the product of the concentration by the distance is a constant value.
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Submitted on : Wednesday, April 9, 2014 - 4:52:59 PM
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  • HAL Id : ineris-00976280, version 1



Véronique Tatry, Nathalie Bocquet, Tamara Menard, Michel Nomine. Implementation of open-path measurement techniques. International Conference "Air Quality in Europe : Challenges for the 2000s", May 1999, Venise, Italy. pp.165. ⟨ineris-00976280⟩



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