CO2 laser photoacoustic spectrometry - Sensitivity and drift analysis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27650%2F13%3A86087423" target="_blank" >RIV/61989100:27650/13:86087423 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27200/13:86087423

Výsledek na webu

<a href="http://dx.doi.org/10.1117/12.2020407" target="_blank" >http://dx.doi.org/10.1117/12.2020407</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2020407" target="_blank" >10.1117/12.2020407</a>

Jazyk výsledku

angličtina

Název v původním jazyce

CO2 laser photoacoustic spectrometry - Sensitivity and drift analysis

Popis výsledku v původním jazyce

We reported trace gas measurements performed by the eddy correlation technique and we determined the time domain stability criterion for laminar and turbulent flows measured in the street canyon model. The preliminary evaluation of the instrument performance was utilized by in situ measurements of CH3OH light pollutant concentrations. Further, the instrument has been adapted to in situ measurements of C2H5OH trace gas concentrations. We have determined optimal averaging times for C2H5OH measured by CO2laser PAS at static operation connected to wind tunnel. The Allan and Hadamard variance methods were used for stability analysis. Dependence of both values of Allan and Hadamard variances on different degrees of flow turbulence was evaluated for the sample pollutant C2H5OH. The approach used in the study of the influence of turbulence on the optimal averaging time for minimum detectable concentrations has been described. Several measurement series were made to determine the optimum integ

Název v anglickém jazyce

CO2 laser photoacoustic spectrometry - Sensitivity and drift analysis

Popis výsledku anglicky

We reported trace gas measurements performed by the eddy correlation technique and we determined the time domain stability criterion for laminar and turbulent flows measured in the street canyon model. The preliminary evaluation of the instrument performance was utilized by in situ measurements of CH3OH light pollutant concentrations. Further, the instrument has been adapted to in situ measurements of C2H5OH trace gas concentrations. We have determined optimal averaging times for C2H5OH measured by CO2laser PAS at static operation connected to wind tunnel. The Allan and Hadamard variance methods were used for stability analysis. Dependence of both values of Allan and Hadamard variances on different degrees of flow turbulence was evaluated for the sample pollutant C2H5OH. The approach used in the study of the influence of turbulence on the optimal averaging time for minimum detectable concentrations has been described. Several measurement series were made to determine the optimum integ

Druh

D - Stať ve sborníku

CEP obor

BH - Optika, masery a lasery

OECD FORD obor

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Projekt

<a href="/cs/project/EE2.3.30.0016" target="_blank" >EE2.3.30.0016: Příležitost pro mladé výzkumníky</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of SPIE - The International Society for Optical Engineering. Volume 8788

ISBN

978-0-8194-9604-1

ISSN

0277-786X

e-ISSN

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Počet stran výsledku

8

Strana od-do

1-8

Název nakladatele

SPIE

Místo vydání

Bellingham

Místo konání akce

Mnichov

Datum konání akce

13. 5. 2013

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000323493700068