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密閉空間霧滴沉積狀態(tài)參數(shù)的顯微圖像解析
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    摘要:

    針對(duì)植保機(jī)械噴霧取樣技術(shù)存在的不足，提出了利用顯微圖像結(jié)合數(shù)字圖像處理技術(shù)對(duì)密閉空間中霧滴的沉積狀態(tài)參數(shù)進(jìn)行取樣和分析的方法。利用該方法對(duì)棚室內(nèi)霧滴覆蓋率、沉積密度和均勻性等參數(shù)進(jìn)行了試驗(yàn)和分析。試驗(yàn)結(jié)果表明，隨距離增加，霧滴覆蓋率先上升后下降，而霧滴沉積密度的變化趨勢(shì)正好相反；棚室內(nèi)距地面高度0.4～0.8m范圍內(nèi)，霧滴的覆蓋率和沉積密度基本不隨高度變化。用霧滴覆蓋率、沉積密度和均勻性來表示整個(gè)噴霧場(chǎng)霧滴的沉積狀態(tài)是有效、可行的。

    Abstract:

    In order to solve the problems of sampling technology in spraying, a new measurement method of using micrograph combining with digital image processing technology for spraying deposition parameters analysis and sample in airtight space was given. With this method, the parameters of spraying deposition in entire spraying field could be analyzed, such as spraying coverage, droplets density, spraying uniformity and etc. During the experiment, it was found that with the increasing distance, droplet spraying coverage rose firstly and then declined, but the droplets density was of the opposite trend. The spraying coverage and droplets density would not change at the height of 0.4～0.8m on the ground. It is feasible to describe the droplets deposition in the spraying field by using the spraying coverage, droplets density and spraying uniformity.

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邱白晶,沙俊炎,湯伯敏,吳昊,李佐鵬.密閉空間霧滴沉積狀態(tài)參數(shù)的顯微圖像解析[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2008,39(2):55-58.[J]. Transactions of the Chinese Society for Agricultural Machinery,2008,39(2):55-58.

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