LI Jiangtao^1,2,LI Xiaoguang³,SUN Jian³,LIU Yueqiang³,ZHENG Hao³, ZHANG Xianglei¹,NING Hui³,LI Zirui²

(1.School of Mechanical Engineering,Hebei University of Technology,Tianjin 300401,China;2.College of Mechanical and Electrical Engineering,Wenzhou University,Wenzhou 325035,China;3.Bettersize Instruments Ltd,Dandong 118009,China)

Abstract:In order to improve the measurement accuracy of the insertion electrode and reduce the influence of electric field and Joule heat on the stability of Zeta potential measurement results,multi-physical field numerical simulation of the insertion electrode was carried out to study the influence of the electrode bottom electrode layout on the electric field and temperature distribution in the test area,and the accuracy and stability of the selected electrode were verified by experiments.The results show that when the electrode length is 8 mm,the electrode width is 6 mm,and the electrode spacing is 4 mm,the standard deviation of the test results is smaller.The standard deviation of Zeta potential was 0.98 mV and the insertion electrode has better stability and accuracy.

Keywords:insertion electrode;coupling of electricity and heat;optimization design

中图分类号：TH6                              文献标志码：A

文章编号：1008-5548(2022)04-0134-07

DOI:10.13732/j.issn.1008-5548.2022.04.015

收稿日期： 2022-03-09， 修回日期：2022-05-31，在线出版时间：2022-06-22。

基金项目：国家自然科学基金项目，编号：12072100。

第一作者简介：李江涛(1996—)，男，硕士研究生，研究方向为多物理场仿真及优化。E-mail：1738144236@qq.com。

通信作者简介：宁辉 (1978—),男，博士，研究方向为胶体物理和分析仪器研制。E-mail：hui.ning@bettersize.com。