文献类型：会议论文

英文题名：An Improved Variable M/T Method Based on Speed Estimation for Optical Incremental Encoders

作者：Wang, Hui[2];Pu, Jian-tao[1]

第一作者：Wang, Hui

通讯作者：Pu, JT[1]

机构：[1]Beijing Union Univ, Coll Automat, Beijing, Peoples R China;[2]Chinese Acad Sci, Inst Automat, Beijing, Peoples R China

第一机构：北京联合大学城市轨道交通与物流学院

通讯机构：[1]corresponding author), Beijing Union Univ, Coll Automat, Beijing, Peoples R China.|[1141751]北京联合大学城市轨道交通与物流学院;[11417]北京联合大学;

会议论文集：3rd International Asia Conference on Industrial Engineering and Management Innovation (IEMI)

会议日期：AUG 10, 2012

会议地点：Beijing, PEOPLES R CHINA

语种：英文

外文关键词：Optical incremental encoder; Motor servo system; Speed measurement; Variable M/T method

摘要：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.