Applied Physics B

, Volume 53, Issue 1, pp 23–29

Temperature measurement by single-shot dual-line CARS in low-pressure flows

  • M. Péalat
  • M. Lefebvre
Article

DOI: 10.1007/BF00325478

Cite this article as:
Péalat, M. & Lefebvre, M. Appl. Phys. B (1991) 53: 23. doi:10.1007/BF00325478

Abstract

A CARS method, adapted for diagnostics in low-pressure unsteady flows is described. The technique employs two narrow-band dye lasers and a single-frequency pump laser. Single-shot rotational temperature is obtained from the ratio of the intensities of two isolated Q lines. Temperature-measurement accuracy is discussed. The advantage of referencing the CARS signals from the flow in a cell filled with the same gas is shown. Demonstrative experiments are performed using N2 at pressures of 102–103 Pa.

PACS

07.60 82.80 
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Copyright information

© Springer-Verlag 1991

Authors and Affiliations

  • M. Péalat
    • 1
  • M. Lefebvre
    • 1
  1. 1.Office National d'Etudes et de Recherches AérospatialesChâtillon CedexFrance

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