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| Research of the Time Grating Turntable Automatic Calibration System |
| ZHANG Tian-heng,WANG Pei-yi,WU Liang,SUO Long-bo |
| Engineering Research Center of Mechanical Testing Technology and Equipment, Ministry of Education, Chongqing University of Technology |
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Abstract An automatic measurement method is proposed to measur error time grating turntable, identify parameters of model and compensating error. The system adopts home-made numerical control box combining with embedded technology. The high precision grating is used as reference meter, and the double closed-loop control structure is formed with double micro-controller and PC to achieve high-precision positioning system. The undetermined parameters, 8 on poles and 20 within poles, are identified by the Fourier transform, to obtain coefficients of identifying error model and to realize the real-time online error compensation. Experimental results show that the double closed-loop control system and parameter identification of Fourier transform, can improve the accuracy and the efficiency of calibration, and the accuracy of the time grating turntable is up to 2.4 ″.
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Received: 13 November 2014
Published: 10 December 2015
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［1］彭东林,刘小康,张兴红,等.时栅位移传感器原理与发展历程［J］.重庆理工大学学报(自然科学版),2010, 24(10):40-45.
［2］周立功. 嵌入式系统开发与应用［M］.北京:北京航天航空大学出版社,2012,75-76.
［3］高忠华, 陈锡侯, 郑方燕,等. 时栅角位移传感器误差修正及其测试系统［J］.仪表技术与传感器,2012,(9):75-77.
［4］杨继森, 张静,万文略.基于双闭环结构的线切割机自动分度加工控制系统研究与设计［J］.组合机床与自动化加工技术,2010,(7):40-43.
［5］向平, 张晋,高洁. 基于ARM 的太阳跟踪装置闭环控制系统设计［J］.工业仪表及自动化装置,2010,(2):24-26.
［6］杨玉含, 周召发, 孙立江,杨志勇. 基于闭环控制的自动转位系统设计［J］.仪表技术,2011,(5):13-15.
［7］彭东林, 刘小康,张兴红,等. 谐波修正法及高精度时栅位移传感器［J］. 仪器仪表学报, 2006, 27(1):31-33. |
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2016, Vol. 37 
