Temperature and Density Measurements in an Engine by Pulsed Raman Spectroscopy
Temperature and Density Measurements in an Engine by Pulsed Raman Spectroscopy
- New search for: Smith, J. Ray
- New search for: Smith, J. Ray
Measurements of temperature and nitrogen density and the fluctuations of these quantities have been made in a combusting engine. The measurements were made by applying pulsed, spontaneous laser Raman spectroscopy. This nonintrusive technique demonstrates one cubic millimeter spatial resolution and essentially instantaneous temporal resolution (10−8 second). Densities were determined by measuring the Stokes vibrational scattering of nitrogen, and the temperatures were determined by measuring the ratio of anti-Stokes to Stokes scattering. The diagnostic technique is described and its accuracy analyzed.Temperatures and densities at two locations, over crank angles covering the compression and expansion strokes, for four equivalence ratios are presented. Typical temperature probability distributions are also presented.
Document information
Temperature and Density Measurements in an Engine by Pulsed Raman Spectroscopy
Sae Technical Papers
1980 Automotive Engineering Congress and Exposition ; 1980
1980-02-01
Conference paper
English
Similar titles
Temperature and density measurements in an engine by pulsed Raman spectroscopy
| Automotive engineering | 1980
Pulsed Raman measurements in a stratified charge engine
| AIAA | 1980
Local Temperature Measurements in Flames by laser Raman Spectroscopy
| Automotive engineering | 1976