Title :
Effect of Sensor Resolution on the Accuracy of Positioning Stage
Author :
Teng Li ; Yanjie Liu ; Lining Sun
Author_Institution :
State Key Lab. of Robot. & Syst., Harbin Inst. of Technol., Harbin, China
Abstract :
Sensor as one of the key parts in positioning stage plays an important role in influencing performance of the system. In this paper, for the typical positioning stage, effects of sensor resolution on the positioning accuracy are discussed. The describing function method which is more formula analysis and phase plane method which is more intuitive graphic description are used separately to analyze the problem. We conclude that with the increase of sensor resolution the accuracy of positioning stage is improved, but when the resolution is up to an extent, the effects of it on accuracy are unobvious. This would guide the selection of sensor in order to harmonize the performance of the whole system.
Keywords :
control nonlinearities; describing functions; position control; sensors; describing function method; formula analysis; intuitive graphic description; nonlinearity; phase plane method; positioning stage accuracy; sensor resolution; Laboratories; Mechatronics; Position measurement; Quantization; Relays; Robotics and automation; Sensor phenomena and characterization; Sensor systems; Signal resolution; System performance; describing function; phase trajectory; positioning stage; sensor resolution;
Conference_Titel :
Measuring Technology and Mechatronics Automation, 2009. ICMTMA '09. International Conference on
Conference_Location :
Zhangjiajie, Hunan
Print_ISBN :
978-0-7695-3583-8
DOI :
10.1109/ICMTMA.2009.580
