应用光学, 2016, 37 (2): 308, 网络出版: 2016-04-12   

激光扫描测头视觉系统结构参数优化

Structural parameters optimization of laser scanning probe visual system
段良君 1,2,*祝连庆 1,2娄小平 1,2刘超 1,2
作者单位
1 北京信息科技大学 光电测试技术北京市重点实验室, 北京 100192
2 北京信息科技大学 光电信息与仪器北京市工程研究中心, 北京 100192
摘要
线结构光视觉测量系统是激光扫描测头的重要组成部分, 为了提高激光扫描测头的测量精度及可靠性, 提出一种线结构光视觉系统结构参数优化设计方法。分析了影响该测量系统整体测量精度的因素以及该测量系统的结构误差模型, 并建立了应用于激光扫描测头的结构约束条件, 通过该约束条件建立了结构参数优化仿真系统, 进而得到仿真优化后的结构参数, 即最优结构参数, 并设计实测实验验证其合理性。测得优化后的线结构光视觉系统测量空间点间距相对误差为0.019 8 mm, 本文结果表明优化方法的有效性, 并具有较好的精度。
Abstract
Line-structured light vision measurement system is an important part of laser scanning probe, and its structural parameters affect the measurement accuracy and reliability of the probe directly. In this study, the line-structured light vision system used in the field of laser scanning probe was researched. The relations between the structural parameters and overall accuracy were analyzed, and an optimization design method was proposed based on the simulation system, and then verified experimentally. The experiment results show that the relative error of two spatial points distance is 0.019 8 mm in the optimized system, and the approach in this study can meet demands of accuracy measurement in the field of majority detection applications.
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段良君, 祝连庆, 娄小平, 刘超. 激光扫描测头视觉系统结构参数优化[J]. 应用光学, 2016, 37(2): 308. Duan Liangjun, Zhu Lianqing, Lou Xiaoping, Liu Chao. Structural parameters optimization of laser scanning probe visual system[J]. Journal of Applied Optics, 2016, 37(2): 308.

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