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| Fluctuation characteristics of arc voltage and jet flow in a non-transferred dc plasma generated at reduced pressure | |
Pan WX(潘文霞) ; Guo ZY(郭志颖); Meng X(孟显); Huang HJ(黄河激); Wu CK(吴承康)
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| Source Publication | Plasma Sources Science and Technology
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| 2009-10-06 | |
| Volume | 18Issue:4Pages:045032 |
| ISSN | 0963-0252 |
| Abstract | A torch with a set of inter-electrode inserts between the cathode and the anode/nozzle with a wide nozzle exit was designed to generate plasma jets at chamber pressures of 500–10 000 Pa. The variation of the arc voltage was examined with the change in working parameters such as gas flow rate and chamber pressure. The fluctuation in the arc voltage was recorded with an oscilloscope, and the plasma jet fluctuation near the torch exit was observed with a high-speed video camera and detected with a double-electrostatic probe. Results show that the 300 Hz wave originated from the tri-phase rectified power supply was always detected under all generating conditions. Helmholtz oscillations over 3000 Hz was detected superposed on the 300 Hz wave at gas flow rates higher than 8.8 slm with a peak to valley amplitude lower than 5% of the average voltage value. No appreciable voltage fluctuation caused by the irregular arc root movement is detected, and mechanisms for the arc voltage and jet flow fluctuations are discussed. |
| Subject Area | 电磁流体力学和等离子体动力学 |
| DOI | 10.1088/0963-0252/18/4/045032 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000270680700032 |
| WOS Keyword | ATMOSPHERIC-PRESSURE ; TORCH ; LAMINAR ; BEHAVIOR |
| WOS Research Area | Physics |
| WOS Subject | Physics, Fluids & Plasmas |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/28737 |
| Collection | 等离子体与燃烧中心(2009-2011) |
| Corresponding Author | Pan WX(潘文霞) |
| Recommended Citation GB/T 7714 | Pan WX,Guo ZY,Meng X,et al. Fluctuation characteristics of arc voltage and jet flow in a non-transferred dc plasma generated at reduced pressure[J]. Plasma Sources Science and Technology,2009,18,4,:045032. |
| APA | 潘文霞,郭志颖,孟显,黄河激,&吴承康.(2009).Fluctuation characteristics of arc voltage and jet flow in a non-transferred dc plasma generated at reduced pressure.Plasma Sources Science and Technology,18(4),045032. |
| MLA | 潘文霞,et al."Fluctuation characteristics of arc voltage and jet flow in a non-transferred dc plasma generated at reduced pressure".Plasma Sources Science and Technology 18.4(2009):045032. |
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