Time-resolved tomographic measurements of temperatures in a thermal plasma jet

J Hlína (1) , J Šonský (1)

1 Institute of Thermomechanics (Prague, Czech Republic)

Temperatures in a thermal plasma jet were measured using an experimental set-up providing time-resolved scans of plasma optical radiation near 650 nm from 4 directions. The acquired data were used for reconstructions of time-resolved temperature distributions in measurement planes perpendicular to the plasma jet axis. The plasma torch was fed by the d.c. power source with a substantial ripple voltage modulation which leads to significant differences between the temperature distributions according to the actual phase of the arc current.

Mots clés: Thermal plasma jet; optical diagnostics; temperature distribution.; temperature distribution

J Hlína, J Šonský. Time-resolved tomographic measurements of temperatures in a thermal plasma jet. Journal of Physics D: Applied Physics, 2010, 43 (5), pp.55202. ⟨10.1088/0022-3727/43/5/055202⟩. ⟨hal-00569752⟩