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航空施藥中霧滴沉積傳感器系統(tǒng)設計與實驗
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國家高技術(shù)研究發(fā)展計劃(863計劃)資助項目(2012AA101901),、北京市自然科學基金資助項目(4121001)和北京市農(nóng)林科學院青年科研基金資助項目(QNJJ201217)


Development of a Deposit Sensing System for Aerial Spraying Application
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    摘要:

    基于變介電常數(shù)電容器原理設計霧滴沉積傳感器及檢測系統(tǒng),由此實現(xiàn)對航空施藥中霧滴地面沉積量的快速獲取。通過實驗, 分析建立了傳感器對電導率487μS/cm,、25mS/cm霧滴的沉積量測量線性回歸方程,,決定系數(shù)R2分別為0.9923和0.9544,。利用M-18B型飛機和AU-5000型噴霧機,,對系統(tǒng)進行了應用測試,,結(jié)果表明:與水敏紙圖像分析方法對比,,2種方法獲得的霧滴地面沉積量分布曲線擬合度可達0.9146,,樣點單位面積沉積量的相對測量誤差分布在10%~50%之間。

    Abstract:

    Deposit distribution pattern is an important index in aerial applications. A sensor with variable dielectric capacitor and network system is developed to measure the deposit volume near real-timely in aerial spraying application. The linear regression equations of output voltage and deposit volume with electric conductivity 487μS/cm and 25mS/cm are built by experiment with linear correlation coefficients of 0.9923 and 0.9544, respectively. The system is field tested in a spraying operation using aircraft M-18B and with nozzles AU-5000. The test result indicates that comparing with measurement method of water sensitive paper imagine analysis, the fitting degree of distribution pattern curve is 0.9146 and the relative measurement errors of deposit volume are in 10%~50%.

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張瑞瑞,陳立平,蘭玉彬,徐剛,闞杰,張東彥.航空施藥中霧滴沉積傳感器系統(tǒng)設計與實驗[J].農(nóng)業(yè)機械學報,2014,45(8):123-127. Zhang Ruirui, Chen Liping, Lan Yubin, Xu Gang, Kan Jie, Zhang Dongyan. Development of a Deposit Sensing System for Aerial Spraying Application[J]. Transactions of the Chinese Society for Agricultural Machinery,2014,45(8):123-127.

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  • 收稿日期:2013-12-03
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  • 在線發(fā)布日期: 2014-08-10
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