Two wavelength-CARS thermometry of hydrogen
| Autor: | O. M. Stel'makh, A A Ilyukhin, Valery V Smirnov, D. N. Kozlov, W. Clauss, K. A. Vereschagin |
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| Rok vydání: | 1996 |
| Předmět: |
Quantum optics
Work (thermodynamics) Materials science Temperature sensitivity Physics and Astronomy (miscellaneous) Hydrogen General Engineering General Physics and Astronomy chemistry.chemical_element Atmospheric temperature range Spectral line Wavelength Nuclear magnetic resonance chemistry Thermometer Atomic physics |
| Zdroj: | Applied Physics B Laser and Optics. 62:279-285 |
| ISSN: | 1432-0649 0946-2171 |
| DOI: | 10.1007/bf01080956 |
| Popis: | In this work, we present the results of two-wavelength (2λ)-CARS thermometry of hydrogen at temperatures from 300–1200 K. The choice of the pair of spectral lines for the 2λ-CARS thermometer with respect to optimal temperature sensitivity within a given temperature range was analysed. Software was developed to process the experimental data and calculate the temperature. In the experiments, temperature and density were measured in a heated cell using single-shot and averaged CARS intensities in the pure rotationalS branch. The accuracy achieved and its dependence on measured temperature values and on the number of averaged shots was analysed. |
| Databáze: | OpenAIRE |
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