Visualization of plasma flow structure of plasma by analysis of uncertainty of plasma radiation/24th SPPT/

0357936 - ÚFP 2011 RIV CZ eng O - Ostatní výsledky
Chumak, Oleksiy - Hrabovský, Milan
Visualization of plasma flow structure of plasma by analysis of uncertainty of plasma radiation/24th SPPT/.
2010
Grant CEP: GA ČR GA202/08/1084
Výzkumný záměr: CEZ:AV0Z20430508
Klíčová slova: DC arc * image proseccing * information entropy
Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech

Předneseno na konf.: 24th Symposium on Plasma Physics and Technology,Prague,14.06.-17.06.2010,str.131,:This work presents new principle of jet images processing for visualisation of plasma jet fluctuations. Result of the method is an image that shows space distribution of plasma jet fluctuations. The procedure is based on statistical processing of sequence of photographic images. Shannon entropy (as defined by information theory) is calculated from the brightness distribution for every point of images of jet. Entropy indicates uncertainty of brightness value and its space distribution shows areas of fluctuations with different levels of intensity. Taking images with various filters and different exposure times allows investigation of fluctuations in particular range of radiation spectrum at chosen temporal range.
Trvalý link: http://hdl.handle.net/11104/0196102