In order to comprehend operational principle and characteristics of organic static induction transistor , chapter three expatiates operational principle and characteristics of junction field effect transistor and static induction transistor 为了理解有机静电感应三极管的工作原理和特性，第三章阐述了结型场效应三极管和静电感应三极管的工作原理和特性。
Next , basing on discrete electric potential , plots the distributing figure of the electic potential and electic field , and analyzes relationship between the operational characteristics of static induction transistor and the structure parameter and bias voltage 其次依据求得的离散电位值，绘制相应的电位分布图形和电场分布图形。最后通过对图形的分析，解析有机静电感应三极管的工作特性与器件结构参数和所加偏压的关系。
The main work of this thesis analyzes the organic static induction transistor ' s operational mechanism , and researchs the change of gate length , change of gate - drain distance and change of electric channel breadth for operational characteristics influence of organic static induction transistor 本论文的主要工作是解析有机静电感应三极管的工作机理，并研究了栅极长度变化、栅漏极间距变化和导电沟道的宽度变化对有机静电感应三极管工作特性的影响。
This thesis probes beneficially into numerical calculating and analyzing of the two - dimension model of organic static induction transistor by adopting finite element method , and builds theory foundation for further analyzing systematically operational mechanism of organic static induction transistor and optimizing design of structure parameters for the future 本论文应用有限元法对有机静电感应三极管二维模型的数值计算及解析进行了有益的探索，为今后进一步系统性解析有机静电感应三极管的工作机理和进行结构参数的优化设计构筑了理论基础。
This article solves some theoretical problems of electrostatic suspension based on optoelectronic feedback control . the mechanism of electrostatic induction of conductive suspended objects ( cso ) and electrostatic polarization of insulting suspended objects ( iso ) was theoretical discussed . the equations of charge density on the surface of suspended object caused by electrostatic field were developed . we further provided the equations describing the quantitative relationship of electrostatic forces verses the electrode voltages , the electrode area , the suspending gap , and the electric characteristic of suspended object . these equations show that the inducted surface charge density of cso is greater than the polarized surface charge density of iso , as a result , the electrostatic force acting on cso is larger than that acting on iso , as already proved by the experimental results of measured electrostatic forces . this work provided the theoretical equations and the mathematical models for effectively realizing the optoelectronic feedback control of electrostatic suspension 本文主要讨论光电反馈式静电悬浮的理论问题.研究在静电场作用下导电悬浮体的静电感应机制和绝缘悬浮体的静电极化机理，推导出悬浮体表面的感应电荷或极化电荷的计算公式，以及作用于悬浮体上的静电悬浮力的计算公式，在理论上揭示了静电力与电极电压、电极面积、悬浮间距及悬浮体电学特性等因素之间的关系.结果表明，导电悬浮体表面的感应电荷量比绝缘悬浮体表面的极化电荷量多，因此前者所受的静电悬浮力比后者大，但两者均可实现静电悬浮，这些结论与实验结果完全符合.本文工作为实现静电悬浮的光电反馈控制提供了理论依据
The research content and achievements of this thesis are as follows . it provided a theoretical discussion about the mechanism of the electrostatic suspension , including the mechanism of electrostatic induction and polarization , as well as the behavior of electrostatic force acting on the suspended objects 本文的主要研究工作内容、研究特色和创新之处包括：在理论上，全面系统地揭示了静电悬浮的机理，即静电极与悬浮体之间的静电感应或极化机理及静电力的作用规律。
