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Effect of arc current modulation on plasma jet fluctuations in plasma spraying torch
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SYSNO ASEP 0330835 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Effect of arc current modulation on plasma jet fluctuations in plasma spraying torch Title Vliv modulace obloukového proudu na fluktuace proudu plazmatu v nástřikovém plazmatronu Author(s) Kopecký, Vladimír (UFP-V) RID
Hrabovský, Milan (UFP-V) RIDSource Title Proceedings of the 19th International Symposium on Plasma (ISPC). - Bochum : Ruhr-University Bochum, 2009 / von Keudell A. ; Winter J. ; Böke M. ; Schulz-von der Gathen V. - ISBN 978-0-471-72001-0 Pages p1.5.16-p1.5.16 Number of pages 4 s. Publication form flash - flash Action International Symposium on Plasma Chemistry - ISPC /19./ Event date 26.07.2009-31.07.2009 VEvent location Bochum Country DE - Germany Event type EUR Language eng - English Country DE - Germany Keywords Oscillations of plasma jet ; current ripple ; boundary layer instability ; frequency spectra Subject RIV BL - Plasma and Gas Discharge Physics R&D Projects GA202/08/1084 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20430508 - UFP-V (2005-2011) Annotation Plasma jet fluctuations were analyzed on the basis of diagnostics with an array of high frequency photodiodes for dc plasma torch equipped by rectifier with current ripple 30 kHz. Generation of boundary instability with the current modulation frequency and its harmonics was proved using fast Fourier transformation, contour plots and phase portraits. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2010
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