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Study of tilt axis bearing arrangement for M3S of TMT project 会议论文
7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, AOMATT 2014, April 26, 2014 - April 29, 2014, Harbin, China
Zhao H.; Zhang J.; Yang F.; An Q.; Su Y.; Guo P.
收藏  |  浏览/下载：19/0  |  提交时间：2015/04/27
Performance test of steel tube enclosed thermistors in air temperature measurements (EI CONFERENCE) 会议论文
3rd International Conference on Measuring Technology and Mechatronics Automation, ICMTMA 2011, January 6, 2011 - January 7, 2011, Shanghai, China
Chen H.; Peng J.; Yan F.; Sui Y.; Yang H.
收藏  |  浏览/下载：22/0  |  提交时间：2013/03/25
The performances of two steel tube enclosed precision thermistors are tested in a well controlled air environment to determine if the thermistors have enough accuracy for 0.01C levels of air temperature gradient measurement. Three Fluke's 5641 and three 5610 thermistors were tested for 24 hours in Fluke's 7008 calibration bath in the first step. In the second step  the performances of these two thermistors in steady state and transient state air temperature environments were tested for 8 hours separately. The results illustrate that  two of the 5641s were airproofed in a temperature well controlled tube  when steel tube enclosed precision thermistors are used in air temperature measurement  there are unstable departures from each other with a maximum 8.8 mC in constant air medium and 27 mC in temperature changing air medium. The transient-time errors are too large to show the true amounts of temperature changes for air temperature measurement. 2011 IEEE.  
Influence of spacial temperature distribution on high accuracy interferometric metrology 会议论文
2010
Gu Y. Q.; Miao E. L.; Yan F.; Zhang J. A.; Yang H. J.
收藏  |  浏览/下载：6/0  |  提交时间：2013/03/28
Design of real-time small target detection system for infrared image based on FPGA (EI CONFERENCE) 会议论文
2010 International Conference on Optics, Photonics and Energy Engineering, OPEE 2010, May 10, 2010 - May 11, 2010, Wuhan, China
Qu F.; Liu J.; Xu H.; Ye X.; Yang D.; Wang J.; Piao R.; Wu H.; Sun Q.
收藏  |  浏览/下载：15/0  |  提交时间：2013/03/25
ZnO films growth at different temperature on the substrate of Corning glass by MOCVD (EI CONFERENCE) 会议论文
2009 International Symposium on Liquid Crystal Science and Technology, August 2, 2009 - August 5, 2009, Kunming, China
Tang W.; Yang X.; Wang C.; Zhao C.; Gao X.; Yang J.; Liu B.; Liang H.; Zhao J.; Sun J.; Du G.
收藏  |  浏览/下载：17/0  |  提交时间：2013/03/25
Growth of ZnO films under different oxygen partial pressures by metal organic chemical vapour deposition (EI CONFERENCE) 会议论文
2009 International Symposium on Liquid Crystal Science and Technology, August 2, 2009 - August 5, 2009, Kunming, China
Wang C.; Yang X.; Liu B.; Zhao C.; Tang W.; Yang J.; Gao X.; Liang H.; Zhao J.; Sun J.; Du G.
收藏  |  浏览/下载：19/0  |  提交时间：2013/03/25
Temperature gradients effect on surface test with high precise interferometer 会议论文
2010
Miao E. L.; Gu Y. Q.; Zhang J. A.; Sui Y. X.; Yang H. J.
收藏  |  浏览/下载：24/0  |  提交时间：2013/03/28
Synthesis, morphology and optical properties of SrTiO3:Pr 3+ phosphors (EI CONFERENCE) 会议论文
3rd International Symposium on Functional Materials 2009, ISFM 2009, June 15, 2009 - June 18, 2009, Jinju, Korea, Republic of
Fu Z.; Li W.; Kyoung Yang H.; Kee Moon B.; Chun Choi B.; Hyun Jeong J.
收藏  |  浏览/下载：13/0  |  提交时间：2013/03/25
Influence of spatial temperature distribution on high accuracy interferometric metrology (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
Gu Y.; Miao E.; Yan F.; Zhang J.; Yang H.
收藏  |  浏览/下载：19/0  |  提交时间：2013/03/25
We calculate the influence of temperature change on the refractive index of air  establish a model of air temperature distribution and analyze the effect of different temperature distribution on the high accuracy interferometric metrology. First  a revised Edlen formula is employed to acquire the relation between temperature and refractive index of air  followed by introducing the fixed temperature gradient distribution among the spatial grid within the optical cavity between the reference flat and the test flat of the Fizeau interferometer  accompanied by a temperature change random function within each grid. Finally  all the rays through the air layer with different incident angles are traced by Matlab program in order to obtain the final output position  angle and OPD for each ray. The influence of different temperature distribution and the length of the optical cavity in on the testing accuracy can be analyzed through the RMS value that results from repeatable rays tracing. As a result  the horizontal distribution (vertical to optical axis) has a large effect on the testing accuracy. Thus  to realize the high accuracy figure metrology  the horizontal distribution of temperature must be rigorously controlled as well as to shorten the length of the optical cavity to a large extent. The results from our simulation are of great significant for the accuracy analysis of interferometric testing and the research of manufacturing a interferometer. 2010 Copyright SPIE - The International Society for Optical Engineering.  
Optical characteristic of ion beam sputter deposited aluminum thin films - art. no. 66241B 会议论文
2008
Jin W. H.; Jin C. H.; Zhu H. L.; Liu L.; Yang H. J.
收藏  |  浏览/下载：9/0  |  提交时间：2013/03/28

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