河北大学学报(自然科学版) ›› 2021, Vol. 41 ›› Issue (6): 661-665.DOI: 10.3969/j.issn.1000-1565.2021.06.005

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等离子体中在极板上运动的介质颗粒的带电量测量

郭志强,孙文涛,蔡雅文,张宁,张顺欣,贺亚峰   

  • 发布日期:2021-12-08
  • 通讯作者: 贺亚峰(1978—)
  • 作者简介:郭志强(1993—),男,河北邢台人,河北大学在读硕士研究生,主要从事尘埃等离子体方向研究.
    E-mail:775916701@qq.com
  • 基金资助:
    国家自然科学基金资助项目(11975089);河北省自然科学基金资助项目(A2021201003)

Measurement of electric charge of dielectric particles moving on plate in plasma

GUO Zhiqiang, SUN Wentao, CAI Yawen, ZHANG Ning, ZHANG Shunxin, HE Yafeng   

  1. College of Physics Science and Technology, Hebei University, Baoding 071002, China
  • Published:2021-12-08

摘要: 采用直流放电产生均匀等离子体,研究下极板上运动的带电颗粒的带电量问题.通过分析带电的介质颗粒发生碰撞运动时的碰撞轨迹,进而得到颗粒运动的相对速度等参量,最终求得颗粒的带电量Q,Q为106~107 e.实验结果对深入研究尘埃等离子体中带电颗粒的各种复杂运动提供了依据.

关键词: 等离子体, 颗粒碰撞, 带电量

Abstract: The charge of charged particles moving on the bottom plate is studied by using DC discharge to produce uniform plasma. The relative velocity of particle motion and other parameters are obtained by analyzing the collision trajectory of charged particles, and the charged quantity of particles is obtained. The experimental results provide a basis for further study of the complex motion of charged particles in dusty plasma.

Key words: plasma, particle collision, charge

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