An Improved Variable M/T Method Based on Speed Estimation for Optical Incremental Encoders

Hui Wang and Jian-tao Pu ()
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Hui Wang: Chinese Academy of Sciences
Jian-tao Pu: Beijing Union University

Chapter Chapter 2 in Proceedings of 2012 3rd International Asia Conference on Industrial Engineering and Management Innovation (IEMI2012), 2013, pp 13-20 from Springer

Abstract: Abstract Optical incremental encoders are widely used for the speed measurements in motor servo systems due to low cost and high performance. But it is difficult to use the encoders when wide speed range, high accuracy and extremely short responding time are required at the same time in high performance servo systems. In this paper, an improved variable M/T method is introduced. In this method, both encoder pulse and high frequency clock pulse are counted in a variable interval which ensures the high measurement accuracy in both high speed and low speed. By speed estimation algorithm, the rapid response can be obtained even at very low speed.

Keywords: Optical incremental encoder; Motor servo system; Speed measurement; Variable M/T method (search for similar items in EconPapers)
Date: 2013
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-642-33012-4_2

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DOI: 10.1007/978-3-642-33012-4_2

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