|本期目录/Table of Contents|

基于多线激光扫描的叶片轮廓快速测量系统标定方法(PDF)

《纳米技术与精密工程》[ISSN:1672-6030/CN:12-1351/O3]

期数:
2017年6期
页码:
532-537
栏目:
出版日期:
2017-11-15

文章信息/Info

Title:
Calibration Method for Fast Detection System of Blade Profile Based on Multiple Line Laser Scanning
文章编号:
1672.6030(2017)06.0532.06
作者:
刘博文 陈世利 杨毅 王金桥 丁航
精密测试技术及仪器国家重点实验室(天津大学), 天津 300072
Author(s):
Liu Bowen Chen Shili Yang Yi Wang Jinqiao Ding Hang
State Key Laboratory of Precision Measuring Technology and Instruments(Tianjin University), Tianjin 300072, China
关键词:
叶片轮廓测量 线激光扫描测量 全局标定
Keywords:
blade profile measurement line laser scanning measurementglobal calibration
分类号:
TP273.2
DOI:
10.13494/j.npe.20150096
文献标识码:
A
摘要:
针对现今叶片轮廓测量时,在保证测量精度的前提下提高测量速度的需求,结合工程经验与线激光扫描快速准确的特点,本文提出一种以多个线激光扫描传感器为主体的叶片轮廓快速测量系统,该系统由3个位置固定的线激光扫描传感器完成叶片轮廓测量.在理论上3个传感器测量坐标系之间的旋转矩阵中的未知参数是确定的,故这3个坐标系之间不存在由相对运动引起的直线度误差与定位误差等,主要存在由于安装产生的垂直度误差与平移误差等人为因素误差,因此本文提出并推导了该测量系统坐标系全局标定数学模型,并给出了标定过程与标定结果,通过实际测量叶片轮廓验证了该系统与测量机的测量对比误差为±0.03 mm,测量周期不超过10 s,满足实际测量要求.
Abstract:
In this paper, a rapid measuring system of blade profile based on multiple line laser scanning sensors is proposed and studied combining engineering experience and fast and accurate characteristics of line laser scanning, to meet the need of fast measurement speed on the premise of accuracy. The system consists of three fixed line laser scanning sensors to complete the measurement of blade profile. Theoretically, the unknown parameters in the rotation martrix between the coordinate systems are determined by the coordinate systems of the three sensors.So there is no linear error or position error caused by relative motion between the three coordinate systems, and the main factors of error are the perpendicularity of the installation and the error of translation.Therefore,this paper presents and deduces the global calibration mathematical model of the coordinate system of the measurement system. The calibration process and calibration results are given and the measurement error of the system is verified by measuring the blade profile.Finally, the contrast error between the system and the measuring machine is ± 0.03 mm and the measurement period shall not exceed 10 s by experiment, satisfying the actual measurement requirements.

参考文献/References

备注/Memo

备注/Memo:
收稿日期: 2017-07-11. 基金项目: 国家自然科学基金资助项目(61473205);天津市科技支撑计划资助项目(14ZCZDGX00003). 作者简介: 刘博文(1990—), 男, 硕士研究生. 通讯作者: 陈世利,副教授,slchen@tju.edu.cn.
更新日期/Last Update: 2017-12-21