基于虚拟仪器的等离子射流温度场测量

林新美; 方建成; 徐文骥; 赵紫玉

doi:10.3969/j.issn.1000-1158.2010.01.07

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计量学报 ›› 2010, Vol. 31 ›› Issue (1) : 27-31. DOI: 10.3969/j.issn.1000-1158.2010.01.07

基于虚拟仪器的等离子射流温度场测量

林新美¹,方建成¹,徐文骥²,赵紫玉¹

作者信息 +

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

LIN Xin-mei¹,FANG Jian-cheng¹,XU Wen-ji²,ZHAO Zi-yu¹

Author information +

文章历史 +

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。

Abstract

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.

导出引用

林新美,方建成,徐文骥,赵紫玉. 基于虚拟仪器的等离子射流温度场测量[J]. 计量学报. 2010, 31(1): 27-31 https://doi.org/10.3969/j.issn.1000-1158.2010.01.07

LIN Xin-mei,FANG Jian-cheng,XU Wen-ji,ZHAO Zi-yu. A Measurement Method of Plasma Jet Temperature Field Based on Virtual Instrument[J]. Acta Metrologica Sinica. 2010, 31(1): 27-31 https://doi.org/10.3969/j.issn.1000-1158.2010.01.07

中图分类号： TB942

参考文献

［1］Fang J C , Xu W J. Plasma spray forming ［J］. Journal of Materials Processing Technology, 2002, 129(11): 288-293.
［2］Batkin V. Use of perturbing probes for plasma-jet diagnostics ［J］. Technical Physics, 1997, 42(7): 737-740.
［3］Chen W L T , Heberlein J, Pfender E. Diagnostics of a thermal plasma jet by optical emission spectroscopy and enthalpy probe measurements ［J］. Plasma Chemistry and Plasma Processing, 1994, 14(3): 317-332.
［4］Zaidel A N . Application of holographic interferometry for plasma diagnostics ［J］. Soviet Physics Uspekhi, 1986, 29(5): 447-446.
［5］Gary W J, Richard J.LabVIEW 图像编程［M］. 北京:北京大学出版社, 2002.
［6］杨乐平,等. LabVIEW高级程序设计［M］. 北京:清华大学出版社, 2007.
［7］过增元,赵文华. 电弧和等离子体［M］. 北京:科学出版社, 1986.
［8］Xu J P, Fang J C, Li Z G. Plasma jet imaging by CCD technology in rapid mold manufacturing ［J］. Journal of Materials Processing Technology, 2002,129(1): 250-254.
［9］Haddad G N , Farmer A J D. Temperature determination in a free-burning arc. I. experimental techniques and results in argon ［J］. Journal of Physics D: Applied Physics, 1984, 17(6): 1189-1196.