基于机器视觉的细水雾液滴尺寸测量与分析  

Measurement and Analysis of Water Mist Droplet Size Based on Machine Vision

作　　者：袁江涛[1,2] 杨立[1] 王小川[1] 张健[1] 金仁喜[2] 

机构地区：[1]海军工程大学船舶与动力学院,湖北武汉430033 [2]海军潜艇学院,山东青岛266071

出　　处：《光学学报》2009年第10期2842-2847,共6页Acta Optica Sinica

基　　金：国防预研基金(101050202)资助课题

摘　　要：为了满足科研与工程中对细水雾液滴尺寸测量的高精度低成本要求,对雾滴尺寸的机器视觉测量方法进行了深入研究。在自行建立的高压喷雾系统与雾滴采集装置上对细水雾液滴进行了采样,用显微镜及其CCD相机对雾滴样本进行了图像采集,用图像处理软件对采集的雾滴图像进行了处理与分析,测量并统计了5966个雾滴,得到了雾滴尺寸的频谱分布和累积分布以及雾滴平均直径和特征直径,将测量结果与相位多普勒粒子分析仪(PDPA)的测量结果进行了比较。结果表明,机器视觉方法可测量的最小雾滴直径约4.39μm;机器视觉测量结果与PDPA测量结果相当接近,两种方法测得的细水雾液滴平均直径和特征直径的相对误差均在5%以内,雾滴尺寸均匀度指数的相对误差为0.27%。In order to meeting the demand of measuring the water mist droplet size with high accuracy and low cost,the machine vision measuring technique for the droplet size was studied in depth. The water mist droplets were sampled in self-building high pressure spraying system and droplets collecting device,the photos of the droplets sample were taken by the microscope and its CCD camera,the droplets sample photos were processed and analysed using the image processing software. The total number of the measured and counted droplets was 5966. The droplet size spectral,cumulative distribution and the droplet mean and indicated diameter were obtained. The machine vision measuring results were compared with the PDPA measuring results. Results indicate that the minimum droplet which the machine vision technique can be used to measure is 4.39 μm,and the machine vision results are close to the PDPA measuring results.The relative errors of the water mist droplet mean and indicated diameter are less than 5%,and that of the droplet size dispersion coefficient is 0.27%.

关 键 词：图像处理 雾滴尺寸 机器视觉 图像采集 

分 类 号：TP302[自动化与计算机技术—计算机系统结构]