Title :
Spatial Spectroscopic Diagnostics of Arc Plasmas by Monochromatic Imaging
Author :
Ma, Shuiliang ; Gao, Hongming ; Wu, Lin
Author_Institution :
State Key Lab. of Adv. Welding Production Technol., Harbin Inst. of Technol., Harbin
Abstract :
The monochromatic image of a free-burning arc is acquired with a high-speed camera and narrowband filters. The reconstruction of radial emission coefficients by means of an Abel inversion enables the derivation of the arc temperature. Temperatures obtained from the image are consistent with other measurements. With this technique, the time and spatially resolved properties of arc plasmas can be observed.
Keywords :
arcs (electric); image processing; plasma diagnostics; plasma temperature; transforms; Abel inversion; arc plasma spatial spectroscopic diagnostics; arc temperature derivation; free burning arc monochromatic imaging; high speed camera; narrowband filters; radial emission coefficient reconstruction; Arc discharges; emission coefficient; imaging; narrowband filter; narrowbandfilter; spectroscopy; temperature;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2008.924548
