桁架式超声雾化栽培器的雾滴沉降和根际温湿度变化规律
桁架式超声雾化栽培器的根域雾场及温度场对雾化栽培效果的影响极大,甚至决定了雾培的成败。应用NI PCI-6110数据采集卡在Labview平台上,构建了温湿度的实时采集系统;以PIC16F877A芯片为核心构建了喷雾控制系统;应用四因素五水平的二次回归正交旋转组合设计试验方法,研究了出风口面积、室内温度、雾化率和喷雾时间对桁架式雾化栽培器栽培管道内雾滴沉积量、温度和湿度变化的影响,建立了雾滴沉积量和温湿度的二次回归模型,为该型雾化栽培器实现根际雾场以及温湿度最优控制提供了试验依据。结果表明:喷雾时间、雾化率以及出风口面积和室内温度的交互作用对上下管道内雾滴沉积量的影响显著;出风口面积,室内温度...
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Published in | 农业工程学报 Vol. 29; no. 6; pp. 185 - 192 |
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Main Author | |
Format | Journal Article |
Language | Chinese |
Published |
江苏大学现代农业装备与技术省部共建教育部重点实验室/江苏省重点实验室,镇江 212013
2013
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Subjects | |
Online Access | Get full text |
ISSN | 1002-6819 |
DOI | 10.3969/j.issn.1002-6819.2013.06.023 |
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Summary: | 桁架式超声雾化栽培器的根域雾场及温度场对雾化栽培效果的影响极大,甚至决定了雾培的成败。应用NI PCI-6110数据采集卡在Labview平台上,构建了温湿度的实时采集系统;以PIC16F877A芯片为核心构建了喷雾控制系统;应用四因素五水平的二次回归正交旋转组合设计试验方法,研究了出风口面积、室内温度、雾化率和喷雾时间对桁架式雾化栽培器栽培管道内雾滴沉积量、温度和湿度变化的影响,建立了雾滴沉积量和温湿度的二次回归模型,为该型雾化栽培器实现根际雾场以及温湿度最优控制提供了试验依据。结果表明:喷雾时间、雾化率以及出风口面积和室内温度的交互作用对上下管道内雾滴沉积量的影响显著;出风口面积,室内温度、雾化率和喷雾时间对上下管道内温度影响显著;出风口面积和室内温度的交互作用对上管道内温度影响显著;出风口面积,室内温度和喷雾时间对上下管道内湿度的影响显著。 |
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Bibliography: | 11-2047/S Gao Jianmin, Huang Guizhen, Yin Wenchu, Lu Daipeng, Li Junyi, Liu Changjian (Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education & Jiangsu Province, Jiangsu University, Zhenjiang 212013, China) spraying; temperature; humidity control; truss; deposition of spraying droplets Temperature and humidity in root zone were crucial even vital factors that influence aeroponic efficiency of truss ultrasonic atomization cultivator. A real time acquisition system of temperature and humidity based on Labview with data acquisition card NI PCI-6110 and a spray control system with micro computer unit PIC16F877A were developed. How these factors of the wind outlet area, temperature in truss tube, atomization rate and spray time influenced the deposition of spraying droplets, temperature and humidity in cultivation pipes of truss ultrasonic atomization cultivator were investigated. Quadratic regression rotation combination orthogonality experiment design of four factors and five levels w |
ISSN: | 1002-6819 |
DOI: | 10.3969/j.issn.1002-6819.2013.06.023 |