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1、南京工程学院毕业设计文献资料翻译（原文及译文）原文名称：AMeasuringInstrumentForMultipointSoilTemperatureUnderground课题名称：多点测量地下温度的仪器设计学生姓名：赵锴学号：240082439指导老师：李茂富所在院系：康尼学院专业名称：通信工程2011年3月南京AMeasuringInstrumentForMultipointSoilTemperatureUndergroundChengWang,ChunjiangZhao*,XiaojunQiao,ZhilongXuNationalEngineeringRese
2、archCenterforInformationTechnologyinAgriculture,Beijing,P.R.China,100097Abstract：Anewmeasuringinstrumentfor10pointssoiltemperaturesin0–50centimetersdepthundergroundwasdesigned.SystemwasbasedonSiliconLaboratories’MCUC8051F310,singlechipdigitaltemperaturesensorDS18B20,andotherperipheralci
3、rcuits.Itwassimultaneouslyabletomeasure,memoryanddisplay,andalsoconveydatatocomputerviaastandardRS232interface.Keywords:Multi-pointSoilTemperature;Portable;DS18B20;C8051F3101、IntroductionThetemperatureofsoilisavitalenvironmentalfactor,whichdirectlyinfluencestheactivityofmicroorganismsan
4、dthedecompositionoforganicsubstances.Itcanaffectrootsabsorbingwaterandmineralelements.Italsoplaysanimportantroleinthegrowthrateandrangeofroots.Statistically,rootsofmostplantsarewithin50centimetersunderground,soitbecomesverysignificanttomeasurethesoiltemperatureofdifferentdepthinthisleve
5、l.TheSoilTemperatureMeasuringInstrumentsusednowadaysmainlyfallintothreetypes,thefirsttypeisthemeasuretemperaturebymakinguseoftherelationshipbetweenthesoiltemperatureandthetemperature-sensitiveresistor.Beforeusingthissortofinstruments,thesystemparametersneedtobeadjusted;itisinconvenientt
6、orepairwhenthesystemrunsintotrouble.Thesecondtypeisnon-contactSoilTemperatureMeasuringInstrumentwhichuseinfraredraytomeasuretemperature,thissortofinstrumentsisquiteexpensive.Thethirdtypeisinstrumentmeasuretemperaturebymakinguseofdigitalthermometer,atthepresenttime,thissortofinstrumentsc
7、anonlymeasureonepointofsoiltemperature,andthedatacannotbestoredortransmitted.Inall,theproductsmentionedabovecanhardlybecomepopularfortheyareeithercostlytooexpensiveorfunctionallytoosimple.Soanewkindofcheaperandmoreadvancedinstrumentisrequiredtobeinvented.2、MaterialsAndMethodThi
