In order to expand the application of the optical fiber expanded beam interconnection,a low-loss interconnection model was established.A refractive index transiting matching optical path was designed,and the optical fiber end-face was free of coating.Based on the Gaussian beam theory and geometritc error analysis, the insertion loss distribution of each parameter was simulated with the Monte Carlo simulation method.The 16-core expanded beam connector was producted and experimented,And the radom mated insertion loss was greater than the theoretical model 0.2d B due to the increased insertion loss of the FC/APC connector.the results confiremed the the validity of the simulation model and met the requirement that the radom mated insertion loss was less than 0.8d B.The research approach is instructive for the accuracy and coupling efficiency of each momponent of other optical devices..

In order to meet the higher comprehensive requirements for supporting cables of the on-board communication system, the independent research and development of the miniaturized fireproof optical and electrical hybrid cable for the on-board communication system has been carried out. Through miniaturized structure design, optical and electrical transmission performance design under multi stress, tensile strength design and fireproof performance design, the optical and electrical hybrid cable has achieved the outer diameter of 10.3 mm, tensile strength of 2 000 N, compressive strength of 2 000 N/（10 cm）, transient fire resistance of 900～1 000 ℃, repeated retraction and release, and excellent optical and electrical transmission performance under various environmental stresses. The successful development of the optical and electrical hybrid cable provides support for the development of on-board communication system with special requirement of fire resistance in China.

拖曳线列阵在军事及民用领域有着广泛的应用,其水动力学和姿态控制是各种拖曳线列阵系统设计的关键.基于Albow和Schechter方法,建立了拖缆——子阵——连接器的联合水动力模型,并采用有限差分方法和牛顿迭代法求解.以某拖曳线列阵为研究对象,研究分析了不同工况的拖曳深度、拖曳力和俯仰角参数.研究结果表明:随着拖曳速度的变化,拖曳线列阵深度和拖曳力变化很大;不同分段长度的拖曳线列阵的姿态在不同拖曳力下变化不大.该模型可对各种拖缆及拖曳线列阵的拖曳力及水下姿态等做出预判,为绞车及整个拖曳线列阵系统等整体设计提供支撑.

采用统计过程控制(SPC)技术对矩形软波导生产线实施过程控制.采集关键工序波纹管成型的工艺参数数据,通过计算和评价工序能力指数,分析原因,改进工艺,从而提升工序能力指数;通过选择控制图,确保工序稳定受控,并及时对失控状态进行报警,对失控原因分析及采取相应措施,有效保证工艺的一致性和稳定性.

以硫酸、草酸溶液为电解液,采用二次阳极氧化法制备了初始孔径在20~120 nm、孔间距在40~250 nm、孔深在200 nm~80μm范围内的具有高度有序纳米孔阵列的多孔阳极氧化铝（porous anodic alumina,PAA）模板。以PAA模板为基片,采用真空电子束蒸发的方法在PAA模板上制备了具有高度有序的TiO2纳米点阵列。利用场发射扫描电子显微镜和原子力显微镜对其形貌进行了表征。研究表明,所形成的TiO2纳米点阵列具有同其基底PAA模板相同的序列结构。对TiO2纳米点阵列的生长形成机理进行了讨论。

Hermetic window is widely applied to the microwave system.It is simulated using Ansoft HFSS software and CST software,respectively,and their simulated results are compared.The simulated results show that changing variable h a large number of peak values appears in the S_(11) curves of Ansoft HFSS simulation,while consistency is indicated in the S_(11) curves of CST simulation.When higher resolution frequency of Ansoft HFSS is set and simulation is proceeded again,its S_(11) curves are almost similar to those of CST simulation.