强流射频四极加速器耦合单元的物理设计研究

 用二维程序SUPERFISH 和三维程序MAFIA对射频四极加速器进行了计算机模拟。通过模拟，确定了射频四极加速器中工作模的射频电场的分布, 完成了射频四极加速器的耦合单元、调谐块和起始单元的设计。设计耦合单元必须使射频四极加速对干扰不敏感。对设计的方案进行了讨论和分析。     

电解等离子体法制备Al2O3陶瓷层及其特性研究

利用电弧喷铝并重熔后进行电解等离子体处理(EPP)的方法在Q235钢基体上制备出呈冶金结合的Al2O3陶瓷层.利用XRD,SEM和EDS等手段对陶瓷层的成分和显微组织进行了分析,测定了陶瓷层的耐蚀性能和耐磨性能.实验结果表明,陶瓷层主要由α-Al2O3,γ-Al2O3,θ-Al2O3以及一些非晶相组成,组织致密,耐蚀性能和耐磨性能良好.     

平面圆电流在远处任一点激发的磁场

文章用普通物理的方法计算了平面载流圆线圈在远处任意一点激发的磁场。     

Deposition of TiN Films by Novel Filter Cathodic Arc Technique

A straight magnetic filtering arc source is used to deposit thin films of titanium nitride. The properties of the films depend strongly on the deposition process. TiN films can be deposited directly onto heated substrates in a nitrogen atmosphere or onto unbiased substrates by condensing the Ti^＋ ion beam in about 300 eV N2^＋ nitrogen ion bombardment. In the latter case, the film stoichiometry is varied from an N：Ti ratio of 0.6-1.1 by controlling the arrival rates of Ti and nitrogen ions. Meanwhile, simple models are used to describe the evolution of compressive stress as function of the arrival ratio and the composition of the ion-assisted TiN films.     

微惯性仪表技术的研究与发展

论述了当前国内外微惯性仪表设计和制造技术的研究与发展，强调了对相关基础理论研究的重要性，提出了计算机集成微制造单元的概念。     

Preparation and Microstructure of Tantalum Nitride Thin Film by Cathodic Arc Deposition

Tantalum nitride （TAN） thin films are achieved on Si（111） and SS317L substrates by cathodic vacuum arc technique, which is rarely reported in the literature. The crystal structure, composition and surface morphology of the films are characterized by x-ray diffraction （XRD）, x-ray photoelectron spectroscopy （XPS）, auger electron spectroscopy, and atomic force microscopy, respectively. The influence of substrate negative bias on crystal structure, composition, surface morphology of the TaN films is systematically studied. At the substrate bias of 0 V and -50 V, the amorphous TaN film is obtained. As the bias increases to -100 V, cubic TaN phase can be found. Stoichiometric TaN with hexagonal lattice preferred （300） orientation is prepared at a bias of -200 V. Combine the XRD and XPS results, the binding energy value of 23.6eV of Ta 4f（7/2） is contributed to hexagonal TaN. Compared to other techniques, TaN thin films fabricated by cathodic vacuum arc at various substrate biases show different microstructures.     

一种新型的单陀螺多加速度计捷联惯导系统

在无陀螺捷联方案的基础上，提出了单陀螺多加速度计的捷联方案。中详细推导了角速度和加速度的解算方法，并以智能炮弹为背景，进行了仿真，得到了误差曲线，并指出了应注意的问题。     

差动式电感传感器最小电磁吸力矩的优化设计

本文采用复形法对某型船用挠性陀螺仪的差动式电感传感器进行了最小电磁吸力矩的优化设计，找出线圈匝数和激磁电压的最优值。研究表明，采用合适的线圈匝数和激磁电压，可使电磁吸力矩减小一个数量级以上，从而大大减小挠性陀螺仪的漂移。     

非线性Mohr－Coulomb体边坡的极限荷载

本文根据拟线性偏微分方程组的特征线理论，求得无重双曲、抛物Ｍｏｈｒ－Ｃｏｕｌｏｍｂ体边坡极限荷载的解析解．用两参数的双曲线和抛物线可以较好拟合由实验提供的破坏曲线．由其解发现屈服准则和坡角对极限荷载影响很大，理想塑性体的极限荷载也非最小．