Title :
Influence of Encoder Eccentricity on Speed Measurement and Elimination Approach
Author :
Zhao Rentao ; Zhang Zhifang ; Tie Jun
Author_Institution :
Univ. of Sci. & Technol. Beijing, Beijing, China
Abstract :
Regarding the common problem of eccentricity in the installation process of an incremental photoelectric encoder, a computing model of actual speed is derived and a calculating method of high-precision speed measurement is presented in the paper. Simulation results verify the effectiveness of the simplified model. In addition, the paper elaborates how to online identify eccentricity and the initial angle. And on the basis of the continuous model, a discrete model, based on the traditional speed detection structure of a digital control system, is further derived. The model is simple and practical, with a high application value.
Keywords :
encoding; photoelectric devices; velocity measurement; digital control; elimination approach; encoder eccentricity; incremental photoelectric encoder; speed detection; speed measurement; Computational modeling; Digital control; Equations; Fluctuations; Mathematical model; Time frequency analysis; Velocity measurement; Digital control; Relative eccentricity; Speed correction;
Conference_Titel :
Network Computing and Information Security (NCIS), 2011 International Conference on
Conference_Location :
Guilin
Print_ISBN :
978-1-61284-347-6
DOI :
10.1109/NCIS.2011.111
