Compensation of angular indexing error for precision turntable

被引：2
|
作者：
Wang F.-Q. [1 ,2 ,3 ]
Wang J. [2 ,3 ]
Xie Z.-J. [1 ,3 ]
Liu F.-L. [1 ,2 ,3 ]
机构：
[1] College of Mechanical Engineering, Chongqing University, Chongqing
[2] Key Laboratory of Optoelectronic Technology and Systems, Ministry of Education Chongqing University, Chongqing
[3] Engineering Research Center of Industrial Computed Tomography Nondestructive Testing, Ministry of Education, Chongqing University, Chongqing
来源：
Guangxue Jingmi Gongcheng/Optics and Precision Engineering | 2017年 / 25卷 / 08期
关键词：
Angular indexing error; Error compensation; Precision turntable; Sparse decomposition;
D O I：
10.3788/OPE.20172508.2165
中图分类号：
学科分类号：
摘要：
A compensation method for angular indexing error was introduced based on sparse decomposition to correct the angular indexing error caused by the eccentric and tilt of circular gratings installment in a precision turntable. First, the effect of circular grating installed eccentric and tilt on the angular indexing error was analyzed. Next, according to the characteristics of different orders of error in measuring error of circular grating angle, a compensation model of angular indexing error was built based on the sparse decomposition theory and the harmonic analysis to compensate the angular indexing error of the turntable. Finally, a test platform was established, and the effectiveness of the proposed method was verified to compensate the angular indexing error of a precision turntable. The experimental results show that the proposed method can increase 2 orders of magnitude of the angular indexing accuracy. The maximum value of angular indexing error can be reduced to 0.64″ from 90.85″ through proposed error compensation method. After error compensation with the method, the accuracy of angle positioning can be remarkably improved, meeting the high-accuracy testing requirements of angular displacement of a precision turntable. © 2017, Science Press. All right reserved.
引用
收藏
页码：2165 / 2172
页数：7
相关论文
共 14 条
  • [1] Jiang D.M., Wei L., Yao T.J., Et al., Error analysis and compensation for high accuracy turntable, Navigation and Control, 14, 3, (2015)
  • [2] Guo J.B., Cao H.Y., Wang K.X., Et al., Study on verification and compensation of indexing errors for turntable, China Mechanical Engineering, 25, 7, pp. 894-899, (2014)
  • [3] Zhao R.J., Ma W.L., Improving the accuracy of new-type encoders using error harmonic compensation, Electronic Instrumentation Customer, 16, 3, pp. 69-71, (2009)
  • [4] Ai C.G., Chu M., Sun H.X., Eccentric testing of benchmark circular grating and compensation of angular error, Opt. Precision Eng., 20, 11, pp. 2479-2484, (2012)
  • [5] Mi X.T., Gao S.Y., Effect of eccentric of circular gratings on angular position accuracy of simulator, Journal of Changchun University of Science and Technology (Natural Science Edition), 37, 3, pp. 9-12, (2014)
  • [6] Guo J.B., Cao H.Y., Wang K.X., Et al., Check of indexing error for turntable and establishment of its compensation model, Journal of Tianjin University (Science and Technology), 47, 6, pp. 524-529, (2014)
  • [7] She W.J., Gao L.M., Yang Y.Q., Et al., Calibration and compensation of angular error in laser tracker, Chinese Journal of Scientific Instrument, 36, pp. 52-56, (2015)
  • [8] Feng C.P., Zhu L.Q., Pan Z.K., Et al., New self-calibration method of circular grating eccentric parameters, Chinese Journal of Scientific Instrument, 37, 11, pp. 2459-2464, (2016)
  • [9] Lao D.B., Zhou W.H., Li W.H., Et al., Cylindrical grating angle measurement technology based on genetic algorithm, Infrared and Laser Engineering, 44, 7, pp. 2182-2188, (2015)
  • [10] Kaul S.K., Tickoo A.K., Koul R., Et al., Improving the accuracy of low-cost resolver-based encoders using harmonic analysis, Nuclear Instruments & Methods in Physics Research, 586, 2, pp. 345-355, (2008)
12