雾滴粒径测量技术及激光粒度分析仪测量不确定度评定*

doi:10.13733/j.jcam.issn.20955553.2021.11.07

中国农机化学报 ›› 2021, Vol. 42 ›› Issue (11): 37-42.DOI: 10.13733/j.jcam.issn.20955553.2021.11.07

• 设施农业与植保机械工程 • 上一篇下一篇

雾滴粒径测量技术及激光粒度分析仪测量不确定度评定^*

陈彬, 张井超, 于庆旭, 谭本垠, 夏敏, 刘燕

农业农村部南京农业机械化研究所,南京市,210014

收稿日期:2021-09-20 修回日期:2021-10-08 出版日期:2021-11-15 发布日期:2021-11-15
通讯作者: 刘燕,女,1973年生,江苏如皋人,硕士,副研究员;研究方向为植保施药技术与装备。E-mail: 1225265080@qq.com
作者简介:陈彬,男,1994年生,安徽阜阳人,硕士,助理工程师;研究方向为农业机械智能化检测技术与装备。E-mail: 1129422672@qq.com
基金资助:
*中国农业科学院基本科研业务费专项(S202016、S202117);江苏省现代农机装备与技术示范项目(NJ2019—22)

Current status and uncertainty evaluation of pesticide droplet particle size measurement technology based on laser particle size analyzer

Chen Bin, Zhang Jingchao, Yu Qingxu, Tan Benyin, Xia Min, Liu Yan

Nanjing Institute of Agricultural Mechanization, Ministry of Agriculture and Rural Affairs, Nanjing, 210014, China

Received:2021-09-20 Revised:2021-10-08 Online:2021-11-15 Published:2021-11-15

摘要/Abstract

摘要： 雾滴粒径是评价植保机械雾化性能及作业质量的重要指标,是实现精准施药,农药零增长目标的关键技术参数。农药使用技术中的生物最佳粒径理论、雾滴飘移模型和雾滴蒸发沉积模型等重要理论的研究都与雾滴粒径的大小相关。本文针对各种雾滴粒径测试技术进行了总结分析,对植保机械常用圆锥雾系列喷头喷孔直径分别为Φ0.3 mm、Φ0.7 mm、Φ1.0 mm、Φ1.3 mm、Φ1.6 mm,采用激光粒度分析仪测量雾滴粒径的结果不确定度进行了评定,分析测量过程中的各项不确定度来源。结果表明当包含概率为95%时,其测量结果的最小扩展不确定度为6.63%,最大扩展不确定度为9.18%,平均扩展不确定度为7.38%。激光粒度分析仪测量雾滴粒径结果是准确可靠的,能满足植保机械雾滴粒径测试需求。

关键词: 植保机械, 雾滴粒径, 激光粒度分析仪, 扩展不确定度

Abstract: The droplet size is an important indicator of performance evaluation of plant protection spray and work quality machinery. It is the key technical parameters to achieve pesticides zero-growth and precision spraying. The study of best biological particle size in pesticide use and the study of immersion models and fog droplets evaporation deposition models are related to the size of the fog droplet size. This paper summarizes the various fog droplets test techniques. The fog droplet diameter of Φ0.3 mm, Φ0.7 mm, Φ1.0 mm, Φ1.3 mm, and Φ1.6 mm are measured and evaluated. Analysis of the sources of uncertainty during the measurement process were performed. The results show that when the inclusion probability is 95%, the minimum expanded uncertainty of the measurement results is 6.63%, the maximum expanded uncertainty is 9.18%, and the average expanded uncertainty is 7.38%. The laser particle size analyzer is accurate and reliable in measuring the particle size of the droplets, which can meet the needs of the droplet particle size testing of plant protection machinery.

Key words: plant protection machine, droplet size, laser particle size analyzer, expansion uncertainty

中图分类号:

陈彬, 张井超, 于庆旭, 谭本垠, 夏敏, 刘燕. 雾滴粒径测量技术及激光粒度分析仪测量不确定度评定^*[J]. 中国农机化学报, 2021, 42(11): 37-42.

Chen Bin, Zhang Jingchao, Yu Qingxu, Tan Benyin, Xia Min, Liu Yan. Current status and uncertainty evaluation of pesticide droplet particle size measurement technology based on laser particle size analyzer[J]. Journal of Chinese Agricultural Mechanization, 2021, 42(11): 37-42.

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雾滴粒径测量技术及激光粒度分析仪测量不确定度评定^*

Current status and uncertainty evaluation of pesticide droplet particle size measurement technology based on laser particle size analyzer

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