利用实时光学图像特征提取法测量液相扩散系数

杨瑞芬; 翟影; 孙丽存; 孟伟东; 普小云

doi:10.3788/OPE.20152311.3026

您当前的位置：

首页 >

文章列表页 >

利用实时光学图像特征提取法测量液相扩散系数

现代应用光学 | 更新时间：2020-08-13

- 利用实时光学图像特征提取法测量液相扩散系数
- Measurement of liquid diffusion coefficient by extracting and analyzing features of diffusion images
- 光学精密工程 2015年23卷第11期页码：3026-3032
- 作者机构：
  
  云南大学物理科学技术学院,云南昆明,650091
- 作者简介：
- 基金信息：
  
  国家自然科学基金资助项目(No.11164033,No.61465014)();云南省应用基础研究基金资助项目(No.2011FA006)();云南省高校科技创新团队支
- DOI：10.3788/OPE.20152311.3026
  中图分类号： TP391.4;TQ021.4
- 收稿日期：2015-07-05，
  
  修回日期：2015-08-24，
  
  纸质出版日期：2015-11-25
- 稿件说明：
移动端阅览
杨瑞芬, 翟影, 孙丽存等. 利用实时光学图像特征提取法测量液相扩散系数[J]. 光学精密工程, 2015,23(11): 3026-3032

YANG Rui-fen, ZHAI Ying, SUN Li-cun etc. Measurement of liquid diffusion coefficient by extracting and analyzing features of diffusion images[J]. Editorial Office of Optics and Precision Engineering, 2015,23(11): 3026-3032
杨瑞芬, 翟影, 孙丽存等. 利用实时光学图像特征提取法测量液相扩散系数[J]. 光学精密工程, 2015,23(11): 3026-3032 DOI： 10.3788/OPE.20152311.3026.

YANG Rui-fen, ZHAI Ying, SUN Li-cun etc. Measurement of liquid diffusion coefficient by extracting and analyzing features of diffusion images[J]. Editorial Office of Optics and Precision Engineering, 2015,23(11): 3026-3032 DOI： 10.3788/OPE.20152311.3026.

摘要

介绍了一种利用非对称液芯柱透镜结合实时光学图像特征提取方法测量液相扩散系数(

)的方法。该方法基于图像采集系统的软件开发工具包对采集系统进行二次开发

并用自编应用软件对图像中特定区域进行亮度及宽度的特征提取。然后

依据图像特征自动寻找出实验所选液体折射率薄层清晰成像点的位置并记录该位置随时间的变化关系。最后

根据Fick第二定律计算出液相扩散系数。采用这种方法

实验研究了室温(25℃)条件下乙二醇在纯水中的扩散过程

测得其扩散系数

=1.16410

-5

与文献报导值的相对误差为0.34%。与直接观察测量法相比较

此方法实现了测量的自动化

避免了人为主观判断误差

具有测量快速、准确

计算耗时短

实验测量结果稳定的特点。

Abstract

A measuring method for liquid diffusion coefficients(

) was proposed by an asymmetric liquid-core cylindrical lens combined with an feature extracting method of optical images in real time automatically. Based on the Software Development Kit provided by a CMOS camera used

the application codes were programmed to extract and analyze the features of the brightness and width of a diffusion image. On the image features

the focal position corresponding to a specific liquid layer with a certain refractive index was found out

and the curve of focal positions varied with diffusion time was recorded automatically. Finally

the diffusion coefficient was calculated by using Fick's second law on the acquired experimental data. With the proposed method

the diffusion process of ethylene glycol with pure water was researched at the room temperature(25℃) and the measured diffusion coefficient(

) is 1.16410

-5

the relative error is only 0.34% that of the literature value. As compared with traditional direction observation method

the obtained results demonstrate that the method avoids the error caused by reading focal position with human eye

implements measurement automation and is characterized by higher measuring speeds and accuracy

shorter computing time and stable measuring results.

关键词

Keywords

references

赵长伟, 马沛生. 药物类水溶液扩散系数及相关热力学性质的测定与研究[D]. 天津:天津大学, 2003. ZHAO CH W, MA P SH. Measurement and Study on Diffusion Coefficient and Thermodynamic Property Aqueous Medicaments Solutions[D]. Tianjin:Tianjin University, 2003.(in Chinese)

马友光, 朱春英, 何明霞, 等. 氨基酸在水溶液中扩散系数的实验研究[J]. 激光技术, 2005, 29(2):145-147. MA Y G, ZHU CH Y, HE M X, et al.. The experimental study about the diffusivities of amino acids in aqueous solution[J].Laser Technology, 2005, 29(2):145-147.(in Chinese)

赵长伟, 马沛生, 何明霞. 液相扩散系数测定方法的近期研究进展[J]. 化学工业与工程, 2002, 19(5):374-379. ZHAO CH W, MA P SH, HE M X. Recent research and development of the liquid diffusion coefficient[J].Chemical Industry and Engineering, 2002, 19(5):374-379.(in Chinese)

李强. 液体折射率及液相扩散系数的测量方法研究[D]. 云南:云南大学,2013. LI Q. Study on the Measurement of Liquids Refractive Index and Liquid Diffusion Coefficient[D]. Yunnan:Yunnan University, 2013.(in Chinese)

LI Q, PU X Y, YANG R F, et al.. Measurement of diffusion coefficient of liquids by using an asymmetric liquid-core cylindrical lens:Observing diffusion process directly[J]. Chinese Physics Letters, 2014, 31(5):054203-1-4.

贾永红. 数字图像处理[M]. 武汉:武汉大学出版社, 2010. JIA Y H. Digital Image Processing[M]. Wuhan:Wuhan University Press, 2010.(in Chinese)

俞海, 郭荣鑫, 夏海廷,等. 数字图像相关法在WC/Cu 复合材料线膨胀系数测量中的应用[J]. 光学精密工程,2013,10(21):2696-2703. YU H, GUO R X, XIA H T,et al.. Application of digital image correlation method in measuring linear expansion coefficient of WC/Cu composites[J]. Opt. Precision Eng., 2013,10(21):2696-2703.(in Chinese)

李永红,程耀辉,隋海洋. 基于SDK的软件设计方法[J]. 科技情报开发与经济, 2006, 16(6):228-230. LI Y H, CHENG Y H, SUI H Y. A method of software design based on SDK[J]. Scientific Technology Information Development & Economy, 2006, 16(6):228-230.(in Chinese)

李强, 普小云. 用毛细管成像法测量液相扩散系数-等折射率薄层测量方法[J]. 物理学报, 2013, 62(9):094206. LI Q, PU X Y. Measuring the diffusion coefficient of liquids by capillary imaging method:equivalent refractive index method[J].Acta Physica Sinica, 2013, 62(9):094206.(in Chinese)

王学娟, 罗海波, 魏永旺, 等. 一种采用HOG特征的直线段提取方法[J]. 红外与激光工程, 2013,42(2):513-518. WANG X J, LUO H Y, WEI Y W,et al.. Extracting line segments method with HOG feature[J]. Infrared and Laser Engineering,2013, 42(2):513-518.(in Chinese)

彭皓. 局部不变特征提取算法的研究及其在图像识别中的应用[J]. 电子测量技术,2009,32(2):136-139. PENG H.Local invariant descriptor applied in image recognition[J]. Electronic Measurement Technology, 2009, 32(2):136-139.(in Chinese)

梁万国,罗森林,周思永,等. 彩虹全息图的假彩色编码方法[J]. 光学技术,1997, 11(6):5-11. LIANG W G, LUO S L, ZHOU S Y, et al..Pseudo color coding methods in the rainbow holography[J]. Optical Technology, 1997, 11(6):5-11.(in Chinese)

杨旭. 遥感影像的自适应阈值法水陆分割研究[J]. 科技资讯,2013(5):42-43. YANG X. Study on the adaptive threshold method of remote sensing image based on water and land segmentation[J].Science & Technology Information,2013(5):42-43.(in Chinese)

汪鲁才, 易锡年, 陈小天, 等. 自适应连续多级分区与初始阈值估计的快速模板匹配方法[J]. 红外与激光工程, 2013, 42(4):1106-1111. WANG L C, YI X N, CHEN X T, et al.. Fast template matching algorithm based on AMSP and initial threshold estimation[J]. Infrared and Laser Engineering,2013,42(4):1106-1111.(in Chinese)

李平, 魏仲慧, 何昕, 等. 采用多特征融合的多视点目标识别[J]. 光学精密工程, 2014, 12(22):3365-3376. LI P, WEI ZH H, HE X,et al.. Object recognition based on shape feature fusion under multi-views[J]. Opt. Precision Eng., 2014,12(22):3365-3376.(in Chinese)

蔡菲, 蔡珣, 史同广, 等. 一种基于形状特征的图像检索方法[J]. 计算机软件与应用,2005, 22(12):98-99. CAI F, CAI X, SHI G T, et al.. An image retrieval method based on shape feature[J].Computer Applications and Software, 2005, 22(12):98-99.(in Chinese)

BAYER C H, KING C J. Liquid diffusivities in the glycol water system[J]. Journal Physic Chemistry, 1966, 70(8):2499-2503.

浏览量

506

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

激光共焦干涉面形快速高精度自动测量

激光差动共焦透镜中心偏的自动测量

子孔径拼接干涉的快速调整及测量

三角形方向阈值鉴别的自动测量

切割钢丝波高波长自动测量系统