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Temperature measurements in a laminar plasma jet generated at reduced pressure
Meng X(孟显); Pan WX(潘文霞); Wu CK(吴承康)
Source PublicationVacuum
AbstractDouble electrostatic probe method and Boltzmann-plot method are applied to measure the electron temperature and the excitation temperature of a DC laminar argon plasma jet generated at reduced pressure. Attempts are also made to measure the gas temperature by using a pair of WRe-5/26 thermocouple. Experimental results show that the measured excitation temperature at the jet center increases with the vacuum chamber pressure and the arc current, but is appreciably lower than the measured electron temperature, indicating that the plasma jet under study is evidently deviated from the LTE state. The temperature indicated by the thermocouple probe is much lower than the measured excitation temperature and electron temperature. Theoretical analysis shows that the thermocouple method intended for gas temperature measurement contains very large errors due to rarefied-gas heat transfer effects, and thus is unsuitable for this purpose.
KeywordLaminar Plasma Jet Reduced Pressure Temperatures Measurement Heat Transfer
Indexed BySCI ; EI
WOS IDWOS:000287350700004
WOS Research AreaMaterials Science ; Physics
WOS SubjectMaterials Science, Multidisciplinary ; Physics, Applied
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorMeng X(孟显)
Recommended Citation
GB/T 7714
Meng X,Pan WX,Wu CK. Temperature measurements in a laminar plasma jet generated at reduced pressure[J]. Vacuum,2011,85(7):734-738.
APA 孟显,潘文霞,&吴承康.(2011).Temperature measurements in a laminar plasma jet generated at reduced pressure.Vacuum,85(7),734-738.
MLA 孟显,et al."Temperature measurements in a laminar plasma jet generated at reduced pressure".Vacuum 85.7(2011):734-738.
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