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Spreading characteristics of arc-assisted laser welding filler metals for welding-brazing butt joint between aluminum alloy and galvanized steel 期刊论文
Hanjie Xuebao/Transactions of the China Welding Institution, 2016, 卷号: 37, 期号: 1, 页码: 1-5
作者:  Fan, Ding;  Wang, Bin;  Li, Chunling;  Huang, Jiankang;  Yu, Shurong
收藏  |  浏览/下载：13/0  |  提交时间：2020/11/14
基于预约申请量的图书借期动态调整模型的建立 期刊论文
2014
韩闯; 向琳艳; 陈江帆
收藏  |  浏览/下载：4/0  |  提交时间：2016/05/17
Numerical Monitoring Surface Deformation Induced by Complicated Hydraulic Fractures 其他
2014-01-01
Yan Xin; He Yi-Yuan; He Chuan; Hu Tian-Yue
收藏  |  浏览/下载：3/0  |  提交时间：2017/12/03
PHASE CONSTITUENTS AND MICROSTRUCTURE OF Ti(3)Al/Fe(3)Al + TiN/TiB(2) COMPOSITE COATING ON TITANIUM ALLOY 期刊论文
Surface review and letters, 2011, 期号: 3, 页码: 103-108
作者:  Li, Jianing;  Chen, Chuanzhong;  Zhang, Cuifang
收藏  |  浏览/下载：1/0  |  提交时间：2019/12/23
Station mode for attitude determination of small-multi-target with high speed (EI CONFERENCE) 会议论文
2010 International Conference on E-Product E-Service and E-Entertainment, ICEEE2010, November 7, 2010 - November 9, 2010, Henan, China
Li M.; Wang J.; Zhao L.
收藏  |  浏览/下载：25/0  |  提交时间：2013/03/25
A key problem of attitude measurement of small-multi-target with high speed is how to decide the optimum of the CMOS stations. A multi-CMOS station mode is designed in this paper  multiple CMOS videos were placed on two parallel sides in measurement system  every two CMOS form an intersection viewing field  multiple viewing field join to cover shooting range  which can augment Effective Viewing Field(EVF)  increase capture ratio of objects with high speed and measurement precision of small objects. When an object passes through the joint area  it will be imaged separately on each CMOS focal plane. Multiple CMOS videos were triggered synchronously  a sequence of image information was extracted  the target attitude was confirmed by digital image processing technology. The merit of station mode is low cost  large measurement scope  extending freely and so on. 2010 IEEE.  
Linearity measurement for image-intensified CCD (EI CONFERENCE) 会议论文
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China
Zhao Y.; Zhang L.; Yan F.; Gu Y.; Wan L.
收藏  |  浏览/下载：23/0  |  提交时间：2013/03/25
To the characteristic of the ultraviolet CCD (UV ICCD)  technique of the linearity measurement of the UV ICCD camera is studied based on the theory of radiometry. Approach of linearity measurement is discussed  and a kind of measurement system of the UV ICCD has been developed based on the method of neutral density filter. It is very important that the transmittance of the filter is independent of the wavelength in the method of neutral density filter. Black metal screen mesh with different transmittance is used in our system  and calibration of the filters' transmittance in different working positions has been done. Meanwhile  to assure the uniform of the received radiation on the target of the detector at any test points  an integrating sphere is placed behind the neutral filter to balance light. The whole measurement system mainly consists of a deuterium lamp with high stabilization  the attenuation film with transmission  integrating sphere  optical guide and electro-shift platform. Auto control is realized via special software during the test. With this instrument  the linearity of the UV ICCD was measured. Experimental results show that the nonlinearity of the UV ICCD under fixed-gain is less than 2% and the uncertainty of measurement system is less than 4%. 2010 Copyright SPIE - The International Society for Optical Engineering.  
Ball and field line detection for placed kick refinement 会议论文
作者:  Ying, Li;  Guizhong, Liu;  Xueming, Qian
收藏  |  浏览/下载：5/0  |  提交时间：2019/12/18
Manufacturing and testing of the line-array fiber-optic image slicer based on silicon V-grooves (EI CONFERENCE) 会议论文
MEMS/MOEMS Technologies and Applications III, November 12, 2007 - November 14, 2007, Beijing, China
Liang J.; Guo P.; Liang Z.; Zhu Y.; Hou F.; Yao J.
收藏  |  浏览/下载：15/0  |  提交时间：2013/03/25
Linear fiber-optic image slicer is used more and more in spatial exploration and imaging system. In this paper  a plane arranging method of fiber-optic array based on Si-V grooves is established in order to improve the accuracy and reduce the cost of manufacturing. Firstly  the Si-V groove array is micro-machined with anisotropic etching process  then optical fibers are placed in the grooves orderly with plane arranging method. Secondly  the end surfaces of the device are polished  also the linear fiber-optic image slicer is packaged. Finally  some parameters are tested  including structure parameters  transmittivity and vibration test. Experimental results indicate that the maximum error accumulated in 2000 periods of the Si-V grooves is 0.5 m  the error of the height in Si-V grooves is less than 0.15m  the roughness of the end surface is less than 0.9nm. The transmittivity of the linear fiber-optic image slicer that without optical film is 51.46% at the wavelength of 632.8nm. After random vibration experiment  the ratio of the broken fiber increased by 0.1%. While the temperature reached 320C  the stress of epoxy will be 130Mpa  which is close to the limit resistance stress of 139Mpa  some cracks appeared.  
Design of high-resolution fourier transform lens (EI CONFERENCE) 会议论文
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Advanced Optical Manufacturing Technologies, July 8, 2007 - July 12, 2007, Chengdu, China
Zhang L.; Zhong X.; Jin G.
收藏  |  浏览/下载：16/0  |  提交时间：2013/03/25
With the development of optical information processing  high-resolution Fourier transform lens has often been used in holographic data storage system  spatial filtering and observation of particles. This paper studies the optical design method of high-resolution Fourier transform optical lenses system  which could be used in particles observation and holographic data storage system. According to Fourier transform relation between object and its frequency plane and the theory of geometrical optics  the system with working wavelength 532nm and resolution 3 m was designed based on ZEMAX. A multi-configuration method was adopted to optimize the system's lenses. In the optical system  a diaphragm was placed at the system's spectrum plane and the system demanded a low vacuum to cut down the influences of atmosphere and other particles. The result of finite element analysis indicated that the influences of vacuum pumping to optics spacing and mirror surface shape very minor  and the imaging quality not being affected. This system has many advantages  such as simple structure  good image quality and a high resolution of 3 m. So it has a wide application prospect and can be used both in holographic data storage system and particles observation.  
Study of high precision non-contact measurement based on CCD (EI CONFERENCE) 会议论文
4th International Conference on Information Technology and Applications, ICITA 2007, January 15, 2007 - January 18, 2007, Harbin, China
Lin L.; Yun F.
收藏  |  浏览/下载：19/0  |  提交时间：2013/03/25
In this paper a method that measures relatively positionrelationshipquickly and accurately between two vehicles both on a horizontal plane is introduced. When the linear CCD camera placed on the end of manipulator scans two point targets located on the other vehicle  by virtue of the spatial intersection principle and trigonometry theorem  the relative position relationship between the loading vehicles and launching ones can be gotten(i.e. the spatial coordinate parameters of x  y  z and the angle displacement ). At the same time the paper establishes that the measurement error of length is less than 1mm  by analysis of thee rror analysis and the simulation of computer. The angle displacement is less than 3  which satisfies the technical requests. So the vehicle orientation and loading missiles can be both done at the shortest time. It meets the demand of centralization between the measurement and execution. Forboth automatic transshipment and spatial position relationship measurement  the study is valuable. And the manipulator is measure device as well as executive one so that residual inherent error decreases according to identical reference principle. Therefore the measure precision can be improved greatly.  

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