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CAS IR Grid
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过程工程研究所 [3]
长春光学精密机械与物... [1]
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OAI收割 [6]
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期刊论文 [5]
会议论文 [1]
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2019 [1]
2014 [1]
2013 [2]
2012 [1]
2010 [1]
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Calibration method of center of rotation under the displaced detector scanning for industrial CT
期刊论文
OAI收割
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2019, 卷号: 922, 页码: 326-335
作者:
Lin, Qiang
;
Yan, Min
;
Meng, Fanyong
;
Sun, Liang
;
Tang, Bin
  |  
收藏
  |  
浏览/下载:49/0
  |  
提交时间:2019/04/03
Computed tomography
Projection center of rotation
Displaced detector scanning mode
Crystal Fine Structure and Optical Rotatory Angle Study on Spin Superfluidity of Intermolecular N+H center dot center dot center dot O- Hydrogen Bond Electron Cooper Pairing onto D-, L-, and DL-Valine Optical Lattices
期刊论文
OAI收割
ACTA PHYSICO-CHIMICA SINICA, 2014, 卷号: 30, 期号: 4, 页码: 608-622
作者:
Wang Wen-Qing
;
Zhang Yu-Feng
;
Gong Yan
  |  
收藏
  |  
浏览/下载:18/0
  |  
提交时间:2019/04/09
X-ray Crystal Fine Structure
Optical Rotatory Angle
Clockwise And counterClockwise Rotation Of Nh3 -> Co2
Intermolecular n+h Center Dot Center Dot Center Dot o(-)Hydrogen BOnd On Lattice Surface
Electron Cooper Pairing
SpIn Superfluidity In superconductIng State
D-
L- And dL-valine Crystal
Center of rotation automatic measurement for fan-beam CT system based on sinogram image features
期刊论文
OAI收割
NEUROCOMPUTING, 2013, 卷号: 120, 期号: 0, 页码: 250-257
作者:
Yang, Min
;
Pan, Jing
;
Zhang, Jianhai
;
Song, Sung-Jin
;
Meng, Fanyong
收藏
  |  
浏览/下载:24/0
  |  
提交时间:2015/05/05
Sinogram features
Computed tomography
Center of rotation
Image cross correlation
Automated Recovery of the Center of Rotation in Optical Projection Tomography in the Presence of Scattering
期刊论文
OAI收割
IEEE JOURNAL OF BIOMEDICAL AND HEALTH INFORMATICS, 2013, 卷号: 17, 期号: 1, 页码: 198-204
作者:
Dong, Di
;
Zhu, Shouping
;
Qin, Chenghu
;
Kumar, Varsha
;
Stein, Jens V.
收藏
  |  
浏览/下载:45/0
  |  
提交时间:2015/08/12
Center of rotation
optical projection tomography (OPT)
parallel reconstruction
scattering
A new method to determine the center of rotation shift in 2D-CT scanning system using image cross correlation
期刊论文
OAI收割
NDT & E INTERNATIONAL, 2012, 卷号: 46, 期号: 0, 页码: 48-54
作者:
Yang, Min
;
Gao, Haidong
;
Li, Xingdong
;
Meng, Fanyong
;
Wei, Dongbo
收藏
  |  
浏览/下载:23/0
  |  
提交时间:2013/10/26
Computed tomography
Center of rotation
Image cross correlation
Artifacts
Gimbal displacement error analysis on an electro-optical seeker (EI CONFERENCE)
会议论文
OAI收割
Optical Design and Testing IV, October 18, 2010 - October 20, 2010, Beijing, China
作者:
Zhang X.
;
Zhang X.
;
Zhang X.
收藏
  |  
浏览/下载:32/0
  |  
提交时间:2013/03/25
It is essential to analyze the gimbal displacement errors for a seeker due to the importance for cueing of targets and tracking for the final approach. Otherwise
for a seeker electro-driven with a concentric glass dome
the large errors will decrease the picking
pointing
and tracking precision rooted from the displacement errors existing between the rotation center of the optical system and the gimbal. And the gimbaled camera system displacement errors are never eliminated but reduced due to the geometric errors consists of geometric tolerances of gimbal structure
manufacture
installation and vibration coming from working environment. In this paper
the gimbal displacement errors in an electro-optically stabilized platform resulting from geometric errors and environment errors were analyzed and shown in detail. The mathematical modal of the gimbal displacement errors created based on multi-body dynamics demonstrated the connection between the gimbal displacement errors and the stabilized platform. Taking a visible light image seeker as a case
the diameter is 120mm
and the geometric tolerances came from the values of primary design and the vibration data came from the environmental vibration test on the pitch-yaw seeker
and at the same time
the errors resulting from installation were considered too. Based on calculating
the maximum gimbal displacement error will reach to 0.2mm for pitching angle smaller than 40 and yawing angle smaller than 60. However
the critical parts have been found out according to the probability theory and the reliability analysis successfully used in the paper
and finally
the maximum gimbal displacement error reduced to 0.1mm
which is acceptable corresponding to the picking
pointing and tracking precision for an optical imaging seeker. 2010 Copyright SPIE - The International Society for Optical Engineering.