超高速碰撞2024-T4铝靶产生等离子体的朗缪尔双探针诊断

唐恩凌; 相升海; 杨明海; 张薇; 贺丽萍; 赵新颖

doi:10.11858/gywlxb.2012.03.013

超高速碰撞2024-T4铝靶产生等离子体的朗缪尔双探针诊断

doi: 10.11858/gywlxb.2012.03.013

沈阳理工大学装备工程学院，辽宁沈阳 110159

详细信息

通讯作者:
唐恩凌 tangenling@126.com

计量
- 文章访问数: 6963
- HTML全文浏览量: 451
- PDF下载量: 552
出版历程
- 收稿日期: 2011-05-05
- 修回日期: 2011-11-14
- 发布日期: 2012-06-15

Double-Langmuir Probe Diagnostics of Plasma Produced by Hypervelocity Impact 2024-T4 Aluminum Target

School of Equipment Engineering, Shenyang Ligong University, Shenyang 110159, China

摘要

摘要: 有些等离子体，本身并不存在电极和参考点，而该电极或参考点是提供偏压朗缪尔探针所必需的。为了获得超高速碰撞所产生等离子体的特征参量，建立了一种新的静电探针诊断技术，该技术不需要扫描频率，其探针可用于测量与时间相关的电子温度、电子密度。该诊断系统基于双通道电路，电流和电压谱通过数字示波器同步输出。研究的主要目的是，应用双朗缪尔探针诊断2024-T4铝弹丸超高速碰撞2024-T4铝靶时产生的瞬态等离子体。
- 超高速碰撞 /
- 等离子体 /
- 双朗缪尔探针 /
- 电子温度 /
- 电子密度
Abstract: In some types of plasma, there did not exist an electrode or reference point. The electrode or reference point was needed when applying a bias voltage to a Langmuir probe. To acquire thecharacteristic parameters of transient plasma generated by hypervelocity impact, diagnostic system was established. The new electrostatic probe diagnostic system utilizing the double-Langmuir probe was given, in which no voltage and frequency sweep was required. This method can measure electron temperature and electron density as a function of time. This new instrument was based on a double-channel circuit, the current and voltage spectra were obtained from the probe synchronously by a digital oscilloscope. The aim of this work was to apply the double-Langmuir probe diagnostic system to time-dependent plasmas generated by 2024-T4 aluminum projectile hypervelocity impact 2024-T4 aluminum target.
- hypervelocity impact /
- plasma /
- double-Langmuir probe /
- electron temperature /
- electron density

HTML全文

参考文献(14)

Harano T, Machida Y, Fukushige S, et al. Preliminary study on sustained arc due to plasma excited by hypervelocity impact of space debris on the solar array coupon [J]. Int J Impact Eng, 2006, 33: 326-334.

Tang E L, Zhang Q M, Zhang J. Preliminary study on magnetic induction intensity induced by plasma during hypervelocity impact [J]. Chinese Journal of Aeronautics, 2009, 22(4): 387-392.

Tang E L, Zhang Q M, Zhang J. Preliminary study on diagnostic techniques for transient plasma generated by hypervelocity impact [J]. Plasma Sci Tech, 2008, 10(6): 735-738.

Boedo J A, Gray D, Conn R W, et al. On the harmonic technique to measure electron temperature with high time resolution [J]. Rev Sci Instrum, 1999, 70(7): 2997-3006.

Chiodini G, Riccardi C, Fontanesi M. A 400 kHz, fast-sweep Langmuir probe for measuring plasma fluctuations [J]. Rev Sci Instrum, 1999, 70(6): 2681-2688.

Ritz C P, Powers E J, Rhodes T L, et al. Advanced plasma fluctuation analysis techniques and their impact on fusion research [J]. Rev Sci Instrum, 1988, 59(8): 1739-1744

Crawford D A, Schultz P H. Laboratory investigations of impact-generated plasma [J]. J Geophys Res, 1991, 96(E3): 18807-18817.

Vayakis G. A model of the effect of plasma turbulence on time delay measurements by reflectometry [J]. Fusion Eng Des, 1997, 34-35: 519-523.

Vayakis G. Anomalous transport in the tokamak edge [D]. London: Oxford University, 1991.

Sharda T, Misra D S, Avasthi D K. Hydrogen in chemical vapour deposited diamond films [J]. Vacuum, 1996, 47(11): 1259-1264.

Kasaba Y, Hayakawa H, Ishisaka K, et al. Evaluation of DC electric field measurement by the double probe system aboard the geotail spacecraft [J]. Advances in Space Research, 2006, 37(3): 604-609.

Liu C J, Wang J X, Yu K L, et al. Floating double probe characteristics of non-thermal plasmas in the presence of zeolite [J]. Journal of Electrostatics, 2002, 54(2): 149-158.

Garcia L A, Restrepo E, Jimnez H, et al. Diagnostics of pulsed vacuum arc discharges by optical emission spectroscopy and electrostatic double-probe measurements [J]. Vacuum, 2006, 81(4): 411-416.

Lawrence T B. Langmuir probe measurements in the plume of a plused plasma thruster [D]. Worcester: Worcester Polytechnic Institute, 2002.

施引文献

资源附件(0)

访问统计