Tomographic Measurements of Temperature Fluctuations in an Air Plasma Cutting Torch

被引：2
作者：
Hlina, Jan [1 ]
Sonsky, Jiri [1 ]
Gruber, Jan [1 ]
机构：
[1] Czech Acad Sci, Inst Thermomech CAS, Vvi, Dolejskova 5, Prague 18200 8, Czech Republic
来源：
PLASMA CHEMISTRY AND PLASMA PROCESSING | 2017年 / 37卷 / 03期
关键词：
Cutting arc; Air plasma; Tomography; Temperature distribution; Fluctuation;
D O I：
10.1007/s11090-017-9794-x
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A tomographic optical system and method based on evaluations of plasma radiation in a wavelength range of 559-601 nm were used to acquire temperature distributions in an air plasma cutting torch in planes perpendicular to the arc axis with a time resolution of 1 mu s. The derived frequency spectra and distributions of temperature fluctuations represented by standard deviations have shown significant variations in distributions of instabilities, depending on the time scales which are taken into account. The results confirmed the decisive role of arc current ripple modulation in the arc temperature fluctuations.
引用
收藏
页码：689 / 699
页数：11
相关论文
共 26 条
  • [1] Chvala F, 2006, ACTA TECHNICA CSAV, V51, P317
  • [2] High-speed imaging in plasma arc cutting: a review and new developments
    Colombo, V.
    Concetti, A.
    Ghedini, E.
    Dallavalle, S.
    Vancini, M.
    [J]. PLASMA SOURCES SCIENCE & TECHNOLOGY, 2009, 18 (02)
  • [3] Influence of configuration and operating conditions on the electric arc instabilities of a plasma spray torch: role of acoustic resonance
    Coudert, J. F.
    Rat, V.
    [J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2008, 41 (20)
  • [4] Pending problems in thermal plasmas and actual development
    Fauchais, P
    Vardelle, A
    [J]. PLASMA PHYSICS AND CONTROLLED FUSION, 2000, 42 : B365 - B383
  • [5] Experimental study of an oxygen plasma cutting torch: I. Spectroscopic analysis of the plasma jet
    Girard, L
    Teulet, P
    Razafinimanana, M
    Gleizes, A
    Camy-Peyret, F
    Baillot, E
    Richard, F
    [J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2006, 39 (08) : 1543 - 1556
  • [6] New approaches in thermal plasma technology
    Heberlein, J
    [J]. PURE AND APPLIED CHEMISTRY, 2002, 74 (03) : 327 - 335
  • [7] Tomographic optical emission spectroscopy of a high enthalpy air plasma flow
    Hermann, Tobias
    Loehle, Stefan
    Fasoulas, Stefanos
    Andrianatos, Andreas
    [J]. APPLIED OPTICS, 2016, 55 (36) : 10290 - 10298
  • [8] Multi-directional optical diagnostics of thermal plasma jets
    Hlina, J.
    Chvala, F.
    Sonsky, J.
    Gruber, J.
    [J]. MEASUREMENT SCIENCE AND TECHNOLOGY, 2008, 19 (01)
  • [9] Asymmetry and Frequency Characteristics of Instabilities in a Thermal Plasma Jet
    Hlina, Jan
    Gruber, Jan
    Sonsky, Jiri
    [J]. IEEE TRANSACTIONS ON PLASMA SCIENCE, 2012, 40 (11) : 2795 - 2799
  • [10] Two-Dimensional Complex FFT Analysis of Oscillations in a Thermal Plasma Jet
    Hlina, Jan
    Sonsky, Jiri
    Gruber, Jan
    Sekeresova, Zuzana
    [J]. IEEE TRANSACTIONS ON PLASMA SCIENCE, 2011, 39 (11) : 2848 - 2849
123