基于汉宁窗变密度条纹的储罐沉降视觉测量方法  

Vision measurement system for tank settlement using Hanning-window changing density fringes

作　　者：伏喜斌 魏崴 黄学斌 刘东明 钟剑锋[2] 王东 钟舜聪[2] 张焱 FU Xibin;WEI Wei;HUANG Xuebin;LIU Dongming;ZHONG Jianfeng;WANG Dong;ZHONG Shuncong;ZHANG Yan(Xiamen Special Equipment Inspection Institute,Xiamen 361000,China;School of Mechanical Engineering and Automation,Fuzhou University,Fuzhou 350116,China;Xiamen Branch,China Aviation Oil Co.,Ltd.,Xiamen 361000,China;Zhejiang Makepower Co.,Ltd.,Wenzhou 325025,China)

机构地区：[1]厦门市特种设备检验检测院,福建厦门361000 [2]福州大学机械工程及自动化学院,福建福州350116 [3]中国航空油料有限责任公司厦门分公司,福建厦门361000 [4]浙江创力电子股份有限公司,浙江温州325025

出　　处：《应用光学》2024年第1期158-165,共8页Journal of Applied Optics

基　　金：国家自然科学基金(51905102,52275523,52275096);中国博士后科学基金(2019M662226);福建省产业技术开发与应用计划引导性项目(2021H0012);闽江学院福建省信息处理与智能控制重点实验室开放课题(MJUKF-IPIC202005);厦门特检院科研项目(XMTJ2020GL001)。

摘　　要：针对储罐沉降问题,提出一种基于汉宁窗变密度条纹和二维视觉的储罐沉降测量系统。将设计的汉宁窗变密度条纹附于被测储罐的表面,在一定距离处通过远焦成像相机对表面的条纹进行实时采集,再通过特定的图像处理算法对图像进行处理以提取储罐的沉降位移。通过SOLIDWORKS三维建模、运动仿真和图像成像模块模拟了不同条件下储罐沉降的图像序列,对主要的测量性能影响因素、测量可行性和准确性进行了模拟分析。搭建了储罐沉降模拟实验测量系统,对系统的测量性能进行了实验分析。结果表明,本测量方法可实现储罐沉降位移的实时监测,在7.5 m距离外沉降位移测量精度优于10μm。A novel measurement system based on Hanning-window-changing density fringes and two-dimensional vision was proposed for monitoring the tank settlement.The artificial Hanning-window-changing density fringes were attached to the surface of the tested storage tank,and the surface fringes were collected in real time by a far-focus imaging camera at a certain distance,and then the images were processed by a specific image processing algorithm to extract the settlement displacement of the storage tank.The image sequences of tank settlement under different conditions were simulated by SOLIDWORKS 3D modeling,motion simulation and image imaging module,and the main measurement performance influencing factors,measurement feasibility and accuracy were simulated and analyzed.The simulated experimental measurement system of tank settlement was constructed,and its measurement performance was analyzed experimentally.The results show that the proposed system can realize real-time monitoring of the tank settlement displacement,and the measurement accuracy can be better than 10μm at a distance of 7.5 m.

关 键 词：汉宁窗变密度条纹 远焦成像相机 储罐沉降 视觉监测 

分 类 号：TN29[电子电信—物理电子学]