High-Precision Large-Displacement Measuring Method with Walking Pattern


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详细

A method for measuring large displacements >800 mm with a precision of 0.0094% and an accuracy of 0.0125%, realizing the principle of measurement with walking pattern and utilizing two analog high-precision small displacement sensors as the measuring unit is presented. A self-tuning fuzzy PID controller with high adaptability is used to make two identical measuring subsystems work coordinately for reaching a large displacement measurement. A series of tests are conducted to verify the effectiveness of the method. The results show that this method has a good performance. The influence of the mechanical deformation on measuring precision is discussed, and the functional relationship between mechanical structural deformation and measuring error is found in the experiment. A feasible compensation scheme is built to eliminate the error caused by mechanical deformation.

作者简介

Yong Sang

School of Mechanical Engineering, Dalian University of Technology

编辑信件的主要联系方式.
Email: sangyong@dlut.edu.cn
中国, Dalian City

Yuebang Dai

School of Mechanical Engineering, Dalian University of Technology

Email: sangyong@dlut.edu.cn
中国, Dalian City

Hongkun Li

School of Mechanical Engineering, Dalian University of Technology

Email: sangyong@dlut.edu.cn
中国, Dalian City

Weiqi Sun

School of Mechanical Engineering, Dalian University of Technology

Email: sangyong@dlut.edu.cn
中国, Dalian City

Xudong Wang

School of Mechanical Engineering, Dalian University of Technology

Email: sangyong@dlut.edu.cn
中国, Dalian City

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