Volume 25 Issue 3
May  2005
Turn off MathJax
Article Contents
WANG Wenqing, XIAO Zuo. A Method to Correct the Characteristic Curve of a Langmuir Probe and the Possibility to Measure Plasma Electron Temperature Through Ion-Acoustic Waves[J]. Chinese Journal of Space Science, 2005, 25(3): 204-207. doi: 10.11728/cjss2005.03.20050308
Citation: WANG Wenqing, XIAO Zuo. A Method to Correct the Characteristic Curve of a Langmuir Probe and the Possibility to Measure Plasma Electron Temperature Through Ion-Acoustic Waves[J]. Chinese Journal of Space Science, 2005, 25(3): 204-207. doi: 10.11728/cjss2005.03.20050308

A Method to Correct the Characteristic Curve of a Langmuir Probe and the Possibility to Measure Plasma Electron Temperature Through Ion-Acoustic Waves

doi: 10.11728/cjss2005.03.20050308 cstr: 32142.14.cjss2005.03.20050308
  • Received Date: 2004-06-01
  • Rev Recd Date: 2005-03-15
  • A proper method is proposed in this paper to eliminate the additional electric current by electrons with high energy in the Langmuir V-I characteristic curve when plasma consists of two groups of electrons at different temperatures and under the condition that Te>>Ti. The study showed that after this correction the result of electron temperature measured is more reasonable. Another method to obtain electron temperature using Ion-Acoustic Wave speed was also studied in this paper. The ion-acoustic wave in this experiment was excited by either tone-burst test wave method or by CW test wave method. The comparison of the electron temperature of the plasma using the above correction method with that calculated from ion-acoustic wave (IAW) speed shows that the average error of electron temperatures from IAW speed Te (about 0.1 eV) is much smaller than that from Langmuir V-I characteristic curve (about 0.44eV, after the above mentioned correction). It can be concluded that to make an additional correction is a good way to raise the accuracy of electron temperature measurement while using IAW method seems better in certain cases.

     

  • loading
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article Views(2490) PDF Downloads(1415) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return