中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 脉宽调制型变量喷雾系统雾量沉积分布 农业机械学报 2007,38 (12) 76-79
Position: Home > Articles > Study on the Deposit Distribution of the Modulated Variable Rate Spray System Transactions of the Chinese Society for Agricultural Machinery 2007,38 (12) 76-79

脉宽调制型变量喷雾系统雾量沉积分布

作  者：
吴春笃;杜彦生;张伟;张波;陈志刚
关键词：
变量喷雾;脉宽调制;喷雾沉积
摘  要：
通过实验和理论分析建立了雾量分布模型,研究了雾量分布规律。研究表明:喷杆方向沉积变异系数在两喷头之间出现最低,而在两喷头正下方出现极高值;行驶方向的沉积变异系数沿着一定规律周期性变化,其周期与占空比相关;在相同压力的情况下,同一喷头的行驶方向及喷杆方向沉积变异系数的峰值均随着车速的提高而上升,随占空比的上升而下降;在研究范围内(40~60cm),变异系数的峰值随喷头高度的升高而降低;若车速和占空比均相同,110°扇形喷头的雾量分布较80°扇形喷头在时空方向上都更加均匀。
译  名：
Study on the Deposit Distribution of the Modulated Variable Rate Spray System
作  者：
Wu Chundu Du Yansheng Zhang Wei Zhang Bo Chen Zhigang (Jiangsu University)
关键词：
Variable rate spray, PWM, Spray deposit
摘  要：
The spray deposit distribution model was established by way of theoretical analysis and experimental research, and the law of spray deposit distribution was studied. The result showed that the CV (coefficient of variation) value of boom direction at the middle point on the boom between two adjacent nozzles was reduced dramatically. The CV reached its maximum value close to the center of the pattern, directly under the nozzle. The CV value of advancing direction has a periodic change with the cyclic of the duty cycle. Under the same pressure, both boom and advancing direction CV would rise with the acceleration of the tractor and would fall with the increasing of both duty cycle and nozzles height in the researched range (40～60 cm). The flat fan nozzle of 110° would give more uniform deposit distribution than that of 80° at the same advancing speed and duty cycle.

相似文章

导出引用
计量
文章访问数: 8
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46