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长春光学精密机械与物... [6]
数学与系统科学研究院 [1]
上海应用物理研究所 [1]
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会议论文 [6]
期刊论文 [2]
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Analysis and optimization of high-power pulse transformer for SXFEL
期刊论文
OAI收割
NUCLEAR SCIENCE AND TECHNIQUES, 2019, 卷号: 30, 期号: 7, 页码: —
作者:
Liu, YF
;
Matsumoto, H
;
Gu, M
;
Zhou, XX
;
Wu, YH
  |  
收藏
  |  
浏览/下载:32/0
  |  
提交时间:2019/12/30
RISE-TIME
DESIGN PROCEDURE
Application of interferometry measurement in large-scale optic-electrical theodolite (EI CONFERENCE)
会议论文
OAI收割
2012 International Conference on Sensors, Measurement and Intelligent Materials, ICSMIM 2012, December 26, 2012 - December 27, 2012, Guilin, China
作者:
Sun Z.
收藏
  |  
浏览/下载:49/0
  |  
提交时间:2013/03/25
Interferometry is a very important method in high accuracy measurement for optical system. This article briefly introduced the conception of interferometry and took a product of 4D Technology as an example to carry on the measurement. A large-scale optic-electrical Theodolite in assemblage was measured
and its primary mirror was 400mm in diameter. With the analysis of the results
some micro adjustments of the mechanical structure proceed
and it made the system perform better. The final results of the whole system is 1.061 in P-V value and 0.1136 in RMS value (=632.8nm)
this meets the demand of optical design and practical application. The result demonstrates that interferometry is a good way to be utilized and optimize in the procedure of assemble. (2013) Trans Tech Publications
Switzerland.
Technology on fabrication of precise SiC aspherical mirror (EI CONFERENCE)
会议论文
OAI收割
2011 International Conference on Materials and Products Manufacturing Technology, ICMPMT 2011, October 28, 2011 - October 30, 2011, Chengdu, China
Zhang Z.
收藏
  |  
浏览/下载:31/0
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提交时间:2013/03/25
This paper represents a technique to produce the large size optical aspherical mirror by using reaction-bonded silicon carbide to meet the material requirements of the space used mirrors
based on the characters comparison of all types mirror material. Techniques are described in this paper
including the bonding procedure of silicon carbide to form a mirror shape
the CCOM technology for aspheric grinding
polishing on a home-developed tool -FSGJ-2
and the aspheric profilometry. A specialized Offner Null lens is also developed to measure the aspherical mirror with laser interferometer. With the technology depicted in the paper
a 502mm 298 mm off-axis SiC aspherical mirror is successfully made with a surface accuracy better than 1/50rms
the final result meets the design requirement. (2011) Trans Tech Publications.
A design on a control method of a new type of focal plane shutter (EI CONFERENCE)
会议论文
OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
Xue L.
;
Ming L.
;
Zheng L.-N.
;
Zhou J.-F.
;
Zhang H.-W.
;
Zhang J.-C.
收藏
  |  
浏览/下载:38/0
  |  
提交时间:2013/03/25
In order to ensure appropriate exposure time
and no exposure while electric charge is transferring after taking a photograph
it is necessary to have the shutter mechanism cooperate with CCD for area CCD aerial cameras. The ground object illumination has a wide range which is from 4000Lx to 100000Lx
so a shutter which is high efficient and a continuous stepless adjustment are also required. This paper introduces the fundamental principle
structural design and control procedure about this new focal plane shutter. Under the control of DSP
the velocity of shutter curtain governed by the shutter motor can be not only precisely controlled
but also the durability and the reliability are increased. The experiment results have shown that this new shutter has the higher stability of movement
long life span with more than 105 operating times
a wide range of exposure time from1/ 50s to 1/ 320s(depending on the slit width)and the exposure error is less than 10%. With the CCD gain adjustment
the performance of this shutter is fully satisfied with the requirements of area CCD aerial cameras. 2010 IEEE.
Robust stabilization for a class of uncertain system with time-varying state delay (EI CONFERENCE)
会议论文
OAI收割
2009 ETP/IITA World Congress in Applied Computing, Computer Science, and Computer Engineering, ACC 2009, August 8, 2009 - August 9, 2009, Sanya, China
作者:
Zhang T.
收藏
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浏览/下载:21/0
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提交时间:2013/03/25
The robust stabilization of uncertain system with time-varying state delay is studied. Based on Lyapunov-Razumkhin approach
the robust controller is designed by solving a set of LMIs. In the controller design procedure there are not any requirements for the derivative of the delay
which allows fast time-varying delay. Numerical example shows the effectiveness of the proposed method. 2009 ETP.
Manufacturing and testing of 1-m class SiC aspherical mirror (EI CONFERENCE)
会议论文
OAI收割
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Large Mirrors and Telescopes, July 8, 2007 - July 12, 2007, Chengdu, China
作者:
Li Z.
;
Li Z.
;
Zhang X.
;
Zhang X.
;
Zhang X.
收藏
  |  
浏览/下载:28/0
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提交时间:2013/03/25
A 1-m class off-axis SiC aspherical mirror was polished up to 13nm rms with CCOS. The lightweight mirror structure design
CCOS procedure
as well as interferometic test set up are be presented in the paper. In addition
the residual surface error of SiC mirror is analyzed and approach to improve the surface quality is discussed.
Research on long focal length On-axis TMA system for high-resolution remote sensing (EI CONFERENCE)
会议论文
OAI收割
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Advanced Optical Manufacturing Technologies, July 8, 2007 - July 12, 2007, Chengdu, China
作者:
Zhang L.
;
Zhang L.
收藏
  |  
浏览/下载:29/0
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提交时间:2013/03/25
TMA (Three Mirror Anastigmatic) is popular to the design of space-based optical system. This paper describes the characteristics of the on-axis TMA optical system. An on-axis TMA system with 13m focal length is designed and analyzed. To solve the initial configuration parameters
Cassagrain structure is confirmed firstly
and then the tertiary mirror. Based on initial configuration parameters
automatic optimization is executed in ZEMAX program
and design result with excellent image quality is acquired
which shows the procedure we choosed with good advantage of computer processing. As the distortion of the design reaches 1%
its influences on TDICCD brushing camera are discussed. The source of distortion is analyzed and correcting methods are considered. Zero focal power corrector is chosen to correct the distortion
and the corrected distortion is less than 0.02%. The research on on-axis TMA system in this paper makes a foundation for farther high-resolution remote sensing applications.
Some issues in the design of EWMA charts
期刊论文
OAI收割
COMMUNICATIONS IN STATISTICS-SIMULATION AND COMPUTATION, 2000, 卷号: 29, 期号: 1, 页码: 207-217
作者:
Chan, LK
;
Zhang, J
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收藏
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浏览/下载:27/0
  |  
提交时间:2018/07/30
EWMA charts
control chart design procedure
Shewhart charts