Open AccessResearch on Accuracy Analysis and Motion Control of Two-axis Non-magnetic Turntable Based on Ultrasonic Motor Journal
Author(s) -
Zhuo Wang,
Xin-tong Wang,
Tao Wang,
Hongwen Ma
Publication year - 2020
Publication title -
mechanika
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.205
H-Index - 23
eISSN - 2029-6983
pISSN - 1392-1207
DOI - 10.5755/j01.mech.26.3.23453
Subject(s) - gyroscope , calibration , control theory (sociology) , servomotor , accuracy and precision , motion control , ultrasonic motor , position (finance) , process (computing) , test bench , servo , rotation (mathematics) , engineering , computer science , simulation , acoustics , computer vision , artificial intelligence , control (management) , robot , physics , mechanical engineering , stator , finance , quantum mechanics , economics , aerospace engineering , operating system
In the calibration process of the positioner, in order to obtain the accurate angular position information of each axis of the turntable, it is necessary to test the rotation accuracy of the turntable higher than the accuracy of the target gyroscope, in order to achieve the test and calibration of the positioner. Therefore, this paper uses the non-magnetic technology to carry out research on the pointing accuracy and motion control of the turntable. At the same time, the influence of grating installation error on precision detection is analysed. The influence of steady-state error of turntable on the motion accuracy of turntable is analysed. Finally, the influence of servo control parameters on the dynamic performance of turntable and the influence on steady-state error are analysed. The test of the corner positioning accuracy of the turntable is carried out. The positioning accuracy and motion control parameters of the two-axis precision non-magnetic turntable are obtained, and the PID adjustment is introduced to make the accuracy index of the non-magnetic turntable meet the requirements. The turntable can realize a non-magnetic working environment and can achieve the high precision required by the index under the driving of the ultrasonic motor.