中国科学院机构知识库网格
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Construction and simulation bias study of the guide Tube Calibration System for JUNO 期刊论文  OAI收割
JOURNAL OF INSTRUMENTATION, 2021, 卷号: 16, 期号: 7
作者:  
Guo, YH;  Zhu, KF;  Zhang, QM;  Zhang, FY;  Meng, Y
  |  收藏  |  浏览/下载:26/0  |  提交时间:2023/03/27
An apparatus to measure water optical attenuation length for lhaaso-md 期刊论文  iSwitch采集
Nuclear instruments & methods in physics research section a-accelerators spectrometers detectors and associated equipment, 2018, 卷号: 892, 页码: 122-126
作者:  
Li, Cong;  Xiao, Gang;  Feng, Shaohui;  Wang, Lingyu;  Li, Xiurong
收藏  |  浏览/下载:76/0  |  提交时间:2019/04/23
An apparatus to measure water optical attenuation length for LHAASO-MD 期刊论文  OAI收割
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2018, 卷号: 892, 页码: 122-126
作者:  
LHAASO Collaboration
  |  收藏  |  浏览/下载:23/0  |  提交时间:2019/09/24
Modeling and analysis of dialyte-lens auto-focusing technology for theodolite (EI CONFERENCE) 会议论文  OAI收割
2008 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Applications, November 16, 2008 - November 19, 2008, Beijing, China
Wu L.-T.; Qiao Y.-F.; Wu D.-K.; Cai S.
收藏  |  浏览/下载:29/0  |  提交时间:2013/03/25
In order to realize real-time auto-focusing for theodolite  lens-apart method was designed with the corresponding math model built and analyzed. An Object beam splitted after the first image surface of the theodolite traveled through two dialyte lens and then was imaged on CCD. The distance between two spots when exactly focused was set as the calibration value  and the relationship between defocus distance and spot offset was given. The influence of tracking center shift and divergence angle etc. on focusing accuracy was analyzed. Compared with the traditional focusing method  this scheme has a higher accuracy  faster calculation  higher tolerance for environment temperature and a simpler construction. The experiment result exhibited a resolution higher than 0.056mm  which shows a bright engineering application prospect for this method. 2009 SPIE.