【摘要】：為解決雙環(huán)入滲儀只能測(cè)定原狀土的滲透速度,而無(wú)法測(cè)定原狀土入滲濕潤(rùn)鋒的運(yùn)移規(guī)律和入滲過(guò)程中不同高度的土壤水分含量等問(wèn)題,提出了一種基于頻域反射法土壤水分傳感器測(cè)量原狀土入滲濕潤(rùn)鋒運(yùn)移規(guī)律和不同高度土壤水分含量的方法,采用arduino mega 2560單片機(jī)開發(fā)板采集土壤水分傳感器檢測(cè)得到的數(shù)值,設(shè)計(jì)了圓盤式底座的原狀土入滲性能檢測(cè)裝置,土壤水分傳感器安裝在檢測(cè)裝置上,arduino mega 2560單片機(jī)開發(fā)板能夠根據(jù)檢測(cè)得到的數(shù)據(jù)判定原狀土入滲濕潤(rùn)鋒的運(yùn)移的位置,并根據(jù)控制策略驅(qū)動(dòng)檢測(cè)裝置,使土壤水分傳感器進(jìn)入下一位置進(jìn)行檢測(cè),也能夠?qū)υ瓲钔寥霛B過(guò)程中不同位置的土壤水分含量進(jìn)行連續(xù)檢測(cè)。為研究原狀土的入滲過(guò)程中濕潤(rùn)鋒的運(yùn)移規(guī)律和水分遷移提供參考。
[Abstract]:In order to solve the problem that the infiltration velocity of undisturbed soil can only be measured by double ring infiltration instrument, but the migration law of wetting front and the soil moisture content of different height in infiltration process can not be measured, etc. A method based on frequency domain reflection method is proposed to measure the moisture front migration law and soil moisture content of different heights in undisturbed soil. The values of soil moisture sensor are collected by using arduino mega 2560 single chip computer development board. A device for detecting the infiltration performance of undisturbed soil with disc base is designed. The soil moisture sensor is installed on the, arduino mega 2560 single chip computer development board to determine the position of the wet front movement of the undisturbed soil based on the measured data. According to the control strategy, the detection device is driven to make the soil moisture sensor enter the next position to detect, and the soil moisture content in different positions in the infiltration process of undisturbed soil can also be continuously detected. It provides a reference for studying the migration law of wetting front and water migration in the infiltration process of undisturbed soil.
【作者單位】： 昆明理工大學(xué)現(xiàn)代農(nóng)業(yè)工程學(xué)院;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(51379004,51009073) 云南省應(yīng)用基礎(chǔ)研究面上項(xiàng)目(2013FB024) 昆明理工大學(xué)學(xué)科方向團(tuán)隊(duì)項(xiàng)目(14078216)
【分類號(hào)】：S152.7

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