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Error analysis of friction drive elements
Guomin Wang; Shihai Yang; Daxing Wang
Source PublicationAdvanced Optical and Mechanical Technologies in Telescopes and Instrumentation
PagesVol.7018 4B-1-9
Conference Date2008-6-23
Conference PlaceMarseille, France
Funding OrganizationThe International Society for Optical Engineering
Friction drive is used in some large astronomical telescopes in recent years. Comparing to the direct drive, friction drive train consists of more buildup parts. Usually, the friction drive train consists of motor-tachometer unit, coupling, reducer, driving roller, big wheel, encoder and encoder coupling. Normally, these buildup parts will introduce somewhat errors to the drive system. Some of them are random error and some of them are systematic error. For the random error, the effective way is to estimate their contributions and try to find proper way to decrease its influence. For the systematic error, the useful way is to analyse and test them quantitively, and then feedback the error to the control system to correct them. The main task of this paper is to analyse these error sources and find out their characteristics, such as random error, systematic error and contributions. The methods or equations used in the analysis will be also presented detail in this paper.
KeywordFriction Drive Drive System Error Error Analysis Error Calculation
Subject Area天文技术与方法
Document Type会议论文
Recommended Citation
GB/T 7714
Guomin Wang,Shihai Yang,Daxing Wang. Error analysis of friction drive elements[C]:SPIE,2008:Vol.7018 4B-1-9.
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