Laser & Optoelectronics Progress, Volume. 60, Issue 5, 0512004(2023)
Phase Laser Ranging System Based on All-Phase Fourier Transform for Manipulator Positioning
Laser distance measurement devices used for the space calibration and positioning of manipulators are easily affected by factors such as the work environment owing to their insufficient ranging accuracies. This leads to inaccurate measurements and shortcomings in the space calibration and positioning of manipulators. This article presents a phase laser ranging system based on the all-phase Fourier transform (apFFT). The proposed system uses the apFFT algorithm for phase discrimination and obtains the real-time measured distance. Compared with the Fourier-transform-based traditional phase laser ranging method, the proposed method can effectively suppress the spectrum leakage caused by various factors in practical applications. The experimental results reveal that the system exhibits good stability and can suppress spectrum leakage. Furthermore, the average positioning accuracy of the proposed system can reach 1 mm, which satisfies the requirements of actual industrial manufacturing.
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Daohua Zhan, Han Wang, Jian Lin, Huiyu Zhong, Yiliang Pan, Xun Chen. Phase Laser Ranging System Based on All-Phase Fourier Transform for Manipulator Positioning[J]. Laser & Optoelectronics Progress, 2023, 60(5): 0512004
Category: Instrumentation, Measurement and Metrology
Received: Jan. 18, 2022
Accepted: Mar. 17, 2022
Published Online: Mar. 6, 2023
The Author Email: Chen Xun (xunchen@gdut.edu.cn)