基于虚拟仪器的等离子射流温度场测量  

A Measurement Method of Plasma Jet Temperature Field Based on Virtual Instrument

作　　者：林新美[1] 方建成[1] 徐文骥[2] 赵紫玉[1] 

机构地区：[1]华侨大学机电及自动化学院,福建泉州362021 [2]大连理工大学机械工程学院,辽宁大连116024

出　　处：《计量学报》2010年第1期27-31,共5页Acta Metrologica Sinica

基　　金：国家自然科学基金（50675072,50775019）;福建省工业科技重点项目（2008H0028）

摘　　要：结合CCD技术和图像处理技术，进行了基于虚拟仪器的高温射流温度场测量技术的研究。实现了通用图像采集卡在LabVIEW环境下的采集以及射流的实时显示；根据图像的灰度与温度场之间的关系，利用IMAQ Vision视觉软件包中强大的图像处理功能对射流图像进行一系列处理，得到射流温度场的分布图像。研究结果表明，这种测温方法费用低、精度高、操作简单，也可应用于热电站、金属焊接、冶炼等场合的温度场的测量，具有十分广阔的应用前景。Combining CCD technology with image processing analysis, virtual instrument based high-temperature jet measurement technology is proposed. Image acquisition as well as real-time display of the jet is achieved by general image acquisition card under the LabVIEW platform. Then, the relationship between the grayscale and temperature field is established. A powerful image processing system IMAQ Vision is applied to obtain the distribution image of jet temperature field. Experimental results show that the proposed temperature measurement method is low-cost, high accuracy and simple operation, and it has broad application prospects, such as the thermal power plants, metal welding, smelting and other occasions.

关 键 词：计量学 温度场 虚拟仪器 ABEL变换 等离子射流 

分 类 号：TB942[一般工业技术—计量学]