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zeige Details Porter, F. M., Greenhalgh, D. A., ... A study of CARS nitrogen thermometry at high pressure
in: Applied physics , ISSN 1432-0649, Vol. 51 (1. 1990), p. 31-38
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1990
Abstract The accuracy of CARS N2 thermometry has been assessed using carefully measured experimental data at high pressures for the temperature range 295 to 870 K and pressure range 1–20 bar. Excellent agreement between calculated and experimental spectra was achieved using statistically based fitting laws to model rotational relaxation. Temperature errors of within ±60 K were achieved using the MEG fitting law, and within ±30 K using an extension to the model (XMEG). Results of separate ab initio IOS calculations with ECS corrections for rotational relaxation gave good overall agreement but did not model the structure of the motionally narrowed spectra as well as the empirical models. The various models were also compared with some complementary data measured by DLR, Stuttgart in their high pressure burner for pressures up to 40 bar. This study also investigated the sensitivity of CARS thermometry to pressure; in certain regions a significant reduction in sensitivity was found. Other key factors investigated include nonlinearities in the intensified diode array detector.
Copyright: Copyright 1990 Springer-Verlag
beteiligte Personen: Porter, F. M. , Greenhalgh, D. A. , Stopford, P. J. , Williams, D. R. , Baker, C. A.
Format: Elektronisch
Erschienen: 1990.
Serie: Springer Online Journal Archives 1860-2000 [Dig. Serial]
Schlagwörter:
URL: http://dx.doi.org/10.1007/BF00332321

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