陈国营,杨传民,董肖云,陈诚,张小川.数字图像相关技术在大豆蛋白喷涂流速测量中的应用[J].包装工程,2016,37(5):63-67.
CHEN Guo-ying,YANG Chuan-min,DONG Xiao-yun,CHEN Cheng,ZHANG Xiao-chuan.Application of Digital Image Correlation Technique in the Velocity Measurement of Soy Protein Spray[J].Packaging Engineering,2016,37(5):63-67. |
| 数字图像相关技术在大豆蛋白喷涂流速测量中的应用 |
| Application of Digital Image Correlation Technique in the Velocity Measurement of Soy Protein Spray |
| 投稿时间：2015-07-17 修订日期：2016-03-10 |
| DOI： |
| 中文关键词: 数字图像相关 高速摄像机 大豆蛋白喷涂液 流速测量 |
| 英文关键词: digital image correlation technique high-speed cameras soy protein spray coating dispersions velocity measurement |
| 基金项目:天津市自然科学基金 （15JCZDJC34100）；天津市高校发展基金 （20130403） |
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| 中文摘要: |
| 目的 分析蔬菜复合纸制备过程中的喷涂雾化规律， 研究大豆蛋白喷涂液在不同喷涂参数下雾化场速度的变化。方法 首先通过高速摄像机采集多帧连续喷涂图像， 然后对采集的图像序列做相关性分析以获得各图像对之间的相对位移场， 最后结合高速摄像机采集图像参数计算大豆蛋白液喷涂雾化速度场。结果 选取喷头下方10 cm处， 边长为10 cm的正方形区域的雾化颗粒进行分析， 当气压一定时， 大豆蛋白雾化颗粒平均速度随液压的增大而增大； 液压一定时， 随着气压的增大， 大豆蛋白喷雾颗粒平均速度先减小后增大,最后趋于某一稳定值。结论 通过数字图像相关技术对高速摄像机拍摄的雾化场图像进行处理分析， 能够描述大豆蛋白液喷涂雾化场的速度分布特性。通过处理不同喷涂参数下的雾化图像， 得到了喷涂参数对雾化颗粒速度的影响。 |
| 英文摘要: |
| This work was aimed to analyze the law of the spray atomization in the production of the vegetable composite paper, and to study the change in the atomization field′ s speed of the soy protein spraying fluid under different coating conditions. Firstly continuous spray images were collected by high-speed cameras. Then correlation analysis of the collected image sequence was conducted to obtain the relative displacement field of the image pairs. Finally, combined with the images′parameters acquired by the high speed camera, the speed field of the soy protein spraying fluid′ s atomization was calculated. Analysis was conducted with the atomized particles in the square area 10 cm below the nozzle with a side length of 10 cm. At a constant air pressure, the average velocity of soy protein atomized particles increased with increasing hydraulic pressure. At a constant hydraulic, with the increase of air pressure, the average velocity of soy protein atomized particles first decreased and then increased, and finally tended to be stabilized. After analyzing the images of atomization field collected by high-speed camera using the digital image correlation technique, the velocity distribution characteristics of the soy protein spraying fluid atomization field was described Through processing spray images under different spraying parameters, the influence of spraying parameters on atomized particle velocity was obtained. |
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