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浏览/检索结果: 共10条,第1-10条 帮助

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FossilMorph: A new tool for fossil automatic measurement and statistical analysis 期刊论文  OAI收割
PALAEOWORLD, 2024, 卷号: 33, 期号: 5, 页码: 1435-1447
作者:  
Zheng, Wen-Tao;  Lou, Zhou-Wei;  Yu, Ye-Feng;  Tang, Qing;  Wang, Xiao-Peng
  |  收藏  |  浏览/下载:11/0  |  提交时间:2025/03/28
SAPM: Self-Adaptive Parallel Manipulator With Pose and Force Adjustment for Robotic Ultrasonography 期刊论文  OAI收割
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2023, 卷号: 70, 期号: 10, 页码: 10333-10343
作者:  
Bao, Xianqiang;  Wang, Shuangyi;  Zheng, Lingling;  Housden, Richard James;  Hajnal, Joseph
  |  收藏  |  浏览/下载:21/0  |  提交时间:2023/11/17
Development and Experiment of an Automatic Measurement Device for Water Coupling by Image Processing 会议论文  OAI收割
Beijing, China, April 22-23, 2018
作者:  
Liu XY(刘晓源);  Chi HD(迟浩东);  Li Z(李正)
  |  收藏  |  浏览/下载:32/0  |  提交时间:2018/12/24
Design of efficient and simple interface testing equipment for opto-electric tracking system 期刊论文  OAI收割
Proceedings of SPIE: 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 2016, 卷号: 9682, 页码: 968212
作者:  
Liu, Qiong;  Deng, Chao;  Tian, Jing;  Mao, Yao
  |  收藏  |  浏览/下载:31/0  |  提交时间:2018/06/14
Research on servo controller for high speed tracking system (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Mechatronic Systems and Automation Systems, MSAS 2011, July 23, 2011 - July 24, 2011, Xi'an, China
作者:  
Li M.
收藏  |  浏览/下载:17/0  |  提交时间:2013/03/25
To meet requirement of swiftness and minimization for the tracking system as well as realize horizontal high accuracy tracking measurement  the automatic servo tracking measurement system has been designed. The two closed loop control  bisection method and compound control have been applied into the system. Experimental results show that the maximum tracking error can be limited to less than 0.5and the regulator time can be 0.04s. The control project resonance frequency should be more than 200Hz and the sample frequency should be more than 400Hz to meet the control accuracy requirement. And these specific mechanical properties indexes are useful to mechanical working to make sure the design can be realization. So the research in this paper has important value to the engineering practice. (2011) Trans Tech Publications.  
Study of high precision non-contact measurement based on CCD (EI CONFERENCE) 会议论文  OAI收割
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:22/0  |  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.  
Large-deformation analysis in microscopic area using micro-moire methods with a focused ion beam milling grating 期刊论文  OAI收割
Optics and Lasers in Engineering, 2007, 卷号: 45, 期号: 12, 页码: 1157-1169
H. Du; H. M. Xie; Z. L. Guo; B. Pan; Q. Luo; C. Z. Gu; H. C. Jiang; L. J. Rong
收藏  |  浏览/下载:42/0  |  提交时间:2012/04/13
Application of linear CCD for position measurement (EI CONFERENCE) 会议论文  OAI收割
ICO20: Optical Devices and Instruments, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Fu Y.;  Liu L.;  Liu L.
收藏  |  浏览/下载:26/0  |  提交时间:2013/03/25
A method that measures relatively position relation between two vehicles fleetly and accurately that are both on a horizontal plane is proposed in the article. When manipulator rotates horizontally  that of angle is less than 26  the linear CCD vidicon that is on the end of manipulator on the loading vehicle scans two point targets that are on the launching vehicle  which satisfies technical requests. So the method is feasible. The research is not only significant for missile of automatic transshipment  and then we can utilize spatial intersection principle and trigonometry theorem to get relatively position relationship. I.e. the coordinate parameters: x  but also is valuable in theoretic research on method of measuring spatial position relationship.  y  z  . Error analysis and the simulation on computer validate: the measurement error of length is less than 0.84mm  
Error analysis and test study of fiber optic gyroscope north-finder (EI CONFERENCE) 会议论文  OAI收割
Advanced Sensor Systems and Applications II, November 8, 2004 - November 12, 2004, Beijing, China
Zhang Z.; Sun J.; Wu K.
收藏  |  浏览/下载:22/0  |  提交时间:2013/03/25
North-finder system is an important application of the inertial technology. It provides true north azimuth information to f all kinds of ground-based equipment. This paper designed a dynamic automatic north-finder based on the modulation output of fiber optic gyroscope (FOG). In this scheme  the sine output signal of the FOG was sampled and disposed  and then the real north of surveyed point on the surface of earth was calculated. The deviation caused by the base tilt was compensated by an accelerator. The output signals of FOG and accelerator were computed combined with the position sampled from increasing encoder by digital signal processor. Successive rotating technique was adopted to modulate the FOG signal periodically. Most of the low frequency part of random gyro drift errors was compensated. The north-finder accuracy was improved compared with the traditional static measuring method. The test result shows the FOG automatic north-finder obtains 2' true north angle accuracies within not more than three minutes  can meet the orientation need of artillery  terrain measurement vehicle  armored car  unmanned drive vehicle  geodetic survey and tunnel exploration.  
桌面式无掩膜光刻系统的研制 学位论文  OAI收割
作者:  
梁鑫
  |  收藏  |  浏览/下载:72/0  |  提交时间:2018/12/26