Spectroscopic studies and rotational and vibrational temperature measurements of atmospheric pressure normal glow plasma discharges in air

振动温度 旋转温度 辉光放电 大气压力 化学 振动能量弛豫 原子物理学 等离子体 大气温度范围 放电 放松(心理学) 分析化学(期刊) 电极 激发态 热力学 心理学 分子 有机化学 物理化学 地质学 物理 海洋学 社会心理学 量子力学 色谱法
作者
David Staack,Bakhtier Farouk,Alexànder Gutsol,Alexander A. Fridman
出处
期刊:Plasma Sources Science and Technology [IOP Publishing]
卷期号:15 (4): 818-827 被引量:183
标识
DOI:10.1088/0963-0252/15/4/027
摘要

DC normal glow (NG) discharges were created in atmospheric pressure air for a pin to plate type geometry. The rotational and vibrational temperatures of the discharge were measured by comparing modelled optical emission spectra with spectroscopic measurements from the discharge. The temperatures were measured as a function of discharge current, ranging from 50 µA to 30 mA, and discharge length, ranging from 50 µm to 1 mm. Rotational temperatures from 400 to 2000 K were measured over this range. Vibrational temperatures vary from 2000 K to as high as 5000 K indicating a non-equilibrium plasma discharge. Spectroscopic measurements were compared using several different vibrational bands of the 2nd positive system of N2, the 1st negative system of and the UV transitions of NO. NO and transitions were also used to determine the electronic temperature and density. The discharge temperature appears to be controlled by two cooling mechanisms: (1) radial conductive cooling which results in an increase in temperature with increasing discharge current and (2) axial cooling to the electrodes which results in a temperature saturation with increase in discharge current. The measured discharge temperature initially increases rapidly with discharge current then becomes nearly constant at a higher discharge current. Thus, radial cooling appears to dominate at lower discharge currents and the axial cooling at higher discharge currents. The vibrational temperature decreases with increasing rotational temperature due to increased vibrational to translation relaxation but the discharge remains non-thermal and stable over the range studied. The discharge appears to have a maximum vibrational temperature at the low current limit of the NG regime.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
5秒前
MC123完成签到,获得积分10
11秒前
shihun发布了新的文献求助10
12秒前
molihuakai应助GY采纳,获得10
24秒前
shihun完成签到,获得积分10
29秒前
ran完成签到 ,获得积分10
35秒前
姬鲁宁完成签到 ,获得积分10
35秒前
蓝胖子完成签到 ,获得积分10
40秒前
流沙完成签到,获得积分10
45秒前
今天也要好好学习完成签到,获得积分10
45秒前
南宫士晋完成签到 ,获得积分10
46秒前
风趣朝雪完成签到,获得积分10
48秒前
kk完成签到,获得积分10
56秒前
荣幸完成签到 ,获得积分10
59秒前
搜集达人应助欣慰若菱采纳,获得30
1分钟前
锂电说完成签到 ,获得积分10
1分钟前
leapper完成签到 ,获得积分10
1分钟前
韩钰小宝完成签到 ,获得积分10
1分钟前
吉吉完成签到,获得积分10
1分钟前
1分钟前
凡凡完成签到,获得积分10
1分钟前
妍宝贝完成签到 ,获得积分10
1分钟前
crystal完成签到 ,获得积分10
1分钟前
Yy完成签到 ,获得积分10
1分钟前
苏222完成签到 ,获得积分10
1分钟前
lyb1853完成签到 ,获得积分10
1分钟前
Tang完成签到,获得积分10
1分钟前
南攻完成签到,获得积分10
1分钟前
香蕉飞瑶完成签到 ,获得积分10
1分钟前
没时间解释了完成签到 ,获得积分10
1分钟前
oyly完成签到 ,获得积分10
1分钟前
Orange应助乔磊采纳,获得10
1分钟前
甜美的秋尽完成签到,获得积分10
1分钟前
2分钟前
2分钟前
乔磊发布了新的文献求助10
2分钟前
2分钟前
2分钟前
2分钟前
ironsilica完成签到,获得积分10
2分钟前
高分求助中
(应助此贴封号)【重要!!请各用户(尤其是新用户)详细阅读】【科研通的精品贴汇总】 10000
Les Mantodea de Guyane Insecta, Polyneoptera 2000
Leading Academic-Practice Partnerships in Nursing and Healthcare: A Paradigm for Change 800
Signals, Systems, and Signal Processing 610
Research Methods for Business: A Skill Building Approach, 9th Edition 500
Research Methods for Applied Linguistics 500
Picture Books with Same-sex Parented Families Unintentional Censorship 444
热门求助领域 (近24小时)
化学 材料科学 医学 生物 纳米技术 工程类 有机化学 化学工程 生物化学 计算机科学 物理 内科学 复合材料 催化作用 物理化学 光电子学 电极 细胞生物学 基因 无机化学
热门帖子
关注 科研通微信公众号,转发送积分 6414019
求助须知:如何正确求助?哪些是违规求助? 8232681
关于积分的说明 17476636
捐赠科研通 5466699
什么是DOI,文献DOI怎么找? 2888499
邀请新用户注册赠送积分活动 1865299
关于科研通互助平台的介绍 1703218