基于线激光扫描的核电换热板厚度测量方法研究

doi:10.3969/j.issn.1000-1158.2022.12.06

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摘要为实现核电换热板厚度尺寸的现场快速检测,搭建了面向复杂薄壁零件厚度测量的线激光三维测量系统,针对线性导轨与传感器相向排列特点的位姿标定方法进行了研究,建立核电换热板三维数字化模型,并针对换热板表面曲率缓变的结构特点,提出基于点点距离与空间聚类的厚度尺寸计算方法,实现核电换热板厚度尺寸高效计算。实验结果表明:系统测量精度优于0.15mm,检测时间≤2min,计算的换热板平均厚度0.9921mm,可满足企业现场(测量精度优于0.2mm、检测时间≤ 5min)检测要求。

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	刘杰
	郑雪松
	杨斌
	王刚
	李文龙

关键词 ：计量学, 厚度测量, 核电换热板, 线激光扫描, 位姿标定

Abstract：In order to realize the on-site rapid detection of the thickness and size of the nuclear power heat exchange plate, a line laser three-dimensional measurement system is builded for the thickness detection of complex thin-walled parts. According to the digital model and the constantly changeable surface curvature of the heat exchange plate, the thickness calculation method based on the distance between points and the spatial clustering is proposed to realize the efficient calculation of its thickness. The experimental result shows that the measurement accuracy of the system is better than 0.15mm, the inspection time is less than 2min, and the calculated average thickness of the heat exchange plate is 0.9921mm, which can meet the enterprises on-site (measurement accuracy is better than 0.2mm, inspection time ≤5min) inspection requirements.

Key words： metrology thickness measurement nuclear heat exchange plate line laser scanning pose calibration

收稿日期: 2021-09-01 发布日期: 2022-12-28

PACS:

TB96

基金资助:国家自然科学基金 (52075203);湖北省重点研发计划(2021BAA054);武汉市科技计划 (2020010601012173)

通讯作者: 李文龙(1980-),山东青岛人,华中科技大学教授,从事三维视觉测量与误差计算方面研究。Email:wlli@mail.hust.edu.cn E-mail: wlli@mail.hust.edu.cn

作者简介: 刘杰(1981-),湖南常德人,武汉商学院讲师,从事视觉测量与智能计算方面研究。Email:ljhustsoft@sohu.com

引用本文:

刘杰,郑雪松,杨斌,王刚,李文龙. 基于线激光扫描的核电换热板厚度测量方法研究[J]. 计量学报, 2022, 43(12): 1561-1567.
LIU Jie,ZHENG Xue-song,YANG Bin,WANG Gang,LI Wen-long. Research on Thickness Measurement Method of Nuclear Heat Exchanger Plate Based on Line Laser Scanning. Acta Metrologica Sinica, 2022, 43(12): 1561-1567.

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http://jlxb.china-csm.org:81/Jwk_jlxb/CN/10.3969/j.issn.1000-1158.2022.12.06 或 http://jlxb.china-csm.org:81/Jwk_jlxb/CN/Y2022/V43/I12/1561

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