基于模式分类的喷嘴料液雾滴速度测量研究

测量烟叶加料过程中料液雾滴喷射后的速度变化,为烟叶加料均匀性的评价提供有效数据。实验从喷嘴的轴向面采集喷出的雾滴图像,对采集到的图像进行预处理和图像分割,采用模式分类对分割出的雾滴分类,根据高速相机成像的测量方法计算出每一类雾滴的速度。研究结果表明,由模式分类统计出的数据,其准确率达到95.65%,使用该数据计算出的速度误差为4.6%,两项数据均在规定范围之内。使用高速摄像机获取图像,采用软件计算出雾滴速度,与早期实验方案相比,降低了测量设备价格,实现低成本测量;模式分类的测量方法准确率较高,为后续加料均匀性分析提供可靠的数据,且效率更高,同时为数据测量的智能化打下基础。

Research on Speed Measurement of Nozzle Material Liquid Droplet Based on Pattern Classification

In order to measure the change of velocity after the spray of liquid droplets in the process of tobacco leaf feeding, it provided effective data for the evaluation of the uniformity of tobacco feed. In this experiment, the image of the sprayed droplets were collected from the axial direction of the nozzle, and the collected images were pre-processed and image segmentation. Classifying the segmented droplets by pattern classification, and calculating the velocity of each type of droplet according to the measurement method of high-speed camera imaging. The results shown that the accuracy of the data calculated by the model classification was 95.65%, and the calculated speed error was 4.6%. Both data were within the specified range. The experiment used a high-speed camera to acquire images, and the droplet velocity was calculated by software. Compared with the earlier experimental scheme, reduced measurement equipment prices for low-cost measurements. The measurement method of the pattern classification had higher accuracy, which could provide reliable analysis for subsequent feeding uniformity analysis. The data was more efficient and at the same time played the foundation for the intelligence of data measurement.