Starlight emergence angle error analysis of star simulator

2015 ◽  
Author(s):  
Jian Zhang ◽  
Guo-yu Zhang
2016 ◽  
Vol 45 (12) ◽  
pp. 1217009
Author(s):  
胡国军 Hu Guojun ◽  
朱精果 Zhu Jingguo ◽  
刘汝卿 Liu Ruqing

2016 ◽  
Vol 45 (12) ◽  
pp. 1217009
Author(s):  
胡国军 Hu Guojun ◽  
朱精果 Zhu Jingguo ◽  
刘汝卿 Liu Ruqing

2013 ◽  
Vol 773 ◽  
pp. 58-61
Author(s):  
Shi Hai Yang ◽  
Ke Qi Zhang ◽  
Zhong Zhuang ◽  
Min Rui Xu ◽  
Min Jian Cao ◽  
...  

DC bias widely exists in power system. In order to analyze its influence on metering current transformer (MCT), a new digital simulation model based on Preisach theory is constructed firstly. Using this digital model, the ratio error and angle error of a running MCT are calculated under different levels of DC bias. Simulation results show that the current DC bias in power system has only little influence on the error of MCT.


2014 ◽  
Vol 716-717 ◽  
pp. 998-1001
Author(s):  
Sheng Lin ◽  
Ling Xuan Zhang ◽  
Ji Ming Shao ◽  
Chong Feng Zhang

The calibration error of a calibration machine will affect the precision of the six-axis force sensor directly. Aiming at the calibration machine with three force sources, calibration errors of the six-axis force sensor for docking system are analyzed to improve measurement precision. The loading position error and angle error of loading axis are researched on alternatively. The error in the calibration direction and the additional error in other directions are studied on. Analysis results will provide important reference for calibration of the six-axis force sensor.


Author(s):  
Yongmeng Zhang ◽  
Xuezhong Wu ◽  
Yulie Wu ◽  
Xiang Xi ◽  
Yi Tao
Keyword(s):  

2021 ◽  
Author(s):  
Hong-tao Yang ◽  
Mei Shen ◽  
Jingjing Cheng ◽  
Mengyao Zhang ◽  
Tingting Hu ◽  
...  

2011 ◽  
Vol 328-330 ◽  
pp. 551-555
Author(s):  
Cong Gui Chen ◽  
Liang Bin Hu ◽  
Feng Wei Yuan ◽  
Yao Bin Hu

According to the requirements of dynamic design for high-speed and heavy-loading marine gear, in view of slotting processing advantages, modification profile slotting cutter used to achieve modify high-speed and heavy-loading marine gear, and the modification profile of slotting cutter designed to the profile which consists of multiple segments of different profile shape profile angle, the modification profile angles of slotting cutter corresponding sections of involutes deduced using the profile angle error analysis theory, modification profile of slotting cutter precision designed based on engagement principle of slotting gear.


1999 ◽  
Vol 173 ◽  
pp. 185-188
Author(s):  
Gy. Szabó ◽  
K. Sárneczky ◽  
L.L. Kiss

AbstractA widely used tool in studying quasi-monoperiodic processes is the O–C diagram. This paper deals with the application of this diagram in minor planet studies. The main difference between our approach and the classical O–C diagram is that we transform the epoch (=time) dependence into the geocentric longitude domain. We outline a rotation modelling using this modified O–C and illustrate the abilities with detailed error analysis. The primary assumption, that the monotonity and the shape of this diagram is (almost) independent of the geometry of the asteroids is discussed and tested. The monotonity enables an unambiguous distinction between the prograde and retrograde rotation, thus the four-fold (or in some cases the two-fold) ambiguities can be avoided. This turned out to be the main advantage of the O–C examination. As an extension to the theoretical work, we present some preliminary results on 1727 Mette based on new CCD observations.


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