二维流场激光成像测量方法

A laser imaging measuring method of 2-D flow field

介绍了利用激光、CCD图像传感器、计算机图像处理技术实现二维流场成像测量的方法与测量系统.运用相关估计和粒子运动轨迹跟踪的理论,提出对流场信号分析、处理和重建的方法.实验结果表明,激光CCD二维流场测量方法具有与流场无接触、无扰动、直观准确、方便快捷的优点,不失为一种十分有效的流场测量手段.

It is introduced in this paper that an imaging measuring method and a system of 2-D flow field by laser, charge coupled device(CCD) sensor and computer. Image signal processing and rebuilding methods of 2-D flow field based on correlative estimation and moving traces of particles theory are designed. The results of experiments have proved that the method has advantages such as precision, operating simply and without touch to and influence on the flow field. It is an effective and useful method to measure 2-D flow field.