直流离子流场发生装置优化设计

发布时间：2018-04-29 11:57

本文选题：直流离子流场 + 边缘效应　；参考：《电子科技大学学报》2017年06期

【摘要】：直流离子流场发生装置对电场传感器在离子流场环境下的测试标定具有重要作用,传统直流离子流场发生装置体积较大难于满足新型电场传感器研制和便携式现场应用,对此该文研究了一种缩小尺寸直流离子流场发生装置。基于理论计算和有限元仿真对装置尺寸、结构等关键参数进行了优化设计。采用在平行板边缘处等分电位的方法减少了边缘效应影响,有效增大了平行板间均匀电场区域,减小了均匀性误差。实验结果表明,在电晕丝电压7 kV时离子流场内不同位置离子流电流强度的相对平均偏差仅为1.66%,说明缩小尺寸的直流离子流场发生装置能够提供均匀的离子流场环境。
[Abstract]:The DC ion flow generator plays an important role in the measurement and calibration of the electric field sensor under the ion flow field environment. It is difficult for the traditional DC ion field generator to meet the needs of the development of the new electric field sensor and the portable field application. In this paper, a reduced size DC ion field generator is studied. Based on theoretical calculation and finite element simulation, the key parameters such as device size and structure are optimized. The method of equipartition potential at the edge of parallel plate reduces the effect of edge effect, effectively increases the uniform electric field area between parallel plates, and reduces the uniformity error. The experimental results show that the relative average deviation of ion current intensity at different positions is only 1.66 when the corona wire voltage is 7 kV, which indicates that the DC ion flow field generator with reduced size can provide a uniform ion flow field environment.
【作者单位】：中国科学院电子学研究所传感技术国家重点实验室;中国科学院大学电子电气与通信工程学院;
【基金】：国家自然科学基金重大科研仪器设备研制专项(61327810);国家自然科学基金(61302032)
【分类号】：TP212

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