Determination of temperature and concentration of molecular nitrogen,oxygen and methane with coherent anti-stokes raman scattering |
| |
Authors: | T Dreier B Lange J Wolfrum M Zahn |
| |
Institution: | (1) Physikalisch-Chemisches Institut der Universität, Im Neuenheimer Feld 253, D-6900 Heidelberg, Fed. Rep. Germany;(2) Present address: Daimler Benz AG, Abt. E6t, D-7000 Stuttgart, FR Germany |
| |
Abstract: | Temperature and concentration measurements by Coherent Anti-Stokes Raman Scattering (CARS) of molecular nitrogen, oxygen and methane were carried out. A comparison of corrected thermocouple and CARS temperature measurements in a high-temperature furnace up to 2000 K is presented. The temperature dependent CARS spectra of N2 and O2 are evaluated by a simulation program. Agreement between CARS and thermocouple temperatures is obtained within 40 K for N2 and 80 K for O2. Good agreement is found between measurements and calculations of the decrease of CARS intensity with temperature. Various quick-fit methods for N2-and O2-temperature measurements from temperature sensitive spectral parameters were tested. Temperature dependent CARS spectra of thev
1-fundamental of methane are recorded and the methane CARS intensity as function of temperature is measured. |
| |
Keywords: | 33 20 37 70 42 65 |
本文献已被 SpringerLink 等数据库收录! |
|