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1、滨州学院毕业设计（论文）开题报告题目基于单片机的粮库温湿度智能检测系统的研究系（院）物理与电子科学系年级2009级专业电子信息科学与技术班级1班学生姓名董乃旭学号指导教师李洁职称讲师滨州学院教务处二〇一三年三月AnAutomaticMeasuringSystemBasedonAtmosphericalMeasurementUsedforTemperatureRelayFortemperaturerelay,itisveryimportanttomeasureitstemperaturesforactionandrever
2、sion.Inthispaper,anautomaticmeasuringsystembasedonatmosphericalmeasurementisdiscussed,whichisverysimpleandpreciseinpracticalapplication.Inatmosphericalmeasurement,itiscrucialtodesignafavorabletemperaturefield.Theresistancestoveisdesignedforsimulatingtemperaturefi
3、eld.Theeventemperatureisimprovedbylong-timewarm-upandplacingorifice-boardintestingroom.Accordingtotheenactmentcontrollingtemperaturecurve,thealgorithmoffuzzycontrolisusedtocontrolthetemperatureintemperaturefield.Theregulatingvoltagemodeofdouble-directionBi-direct
4、ionalthyristorsisusedforcontrollingtemperature.Thesystemconsistsoftheconsoleandtheresistancestove，andtheconsoleincludessoftwareplatformandhardwareplatform.Inthissystem,Themethodofgroupingtheresistancewireofresistancestoveaccordingtothepowerisputforward,andtheperf
5、ormanceofresistancestoveisimprovedbasedonthismethod.Themeasuringprecisionisimprovedbyusingtheminimumtwo-multiplicationtocalibratetheerror.Atpresent,thesystemhasbeenpracticallyappliedinmanufacture,whichhasgainedobviouseconomybenefitandwillbewidelyappliedinthefutur
6、e.1.IntroductionThetemperaturerelayisoneofcommonrelays,whichtakesactionwhentheoutsidetemperaturearrivesatthegiventemperature.Thetemperaturerelayperformslotsoffunctions,suchastemperaturecontrol,firealarm,automaticignition,wiringheat-protection,soitiswidelyusedinsc
7、ientificresearch,industryanddefenseindustryetc.Fortemperaturerelay,itisveryimportanttomeasureitstemperaturesforactionandreversion.Butinthecurrentmanufacture,themanualmeasuringmethods,suchasspot-checkmethod,mercuricthermometermethodetc,dominatethemeasuringmethods.
8、Howevertherearesomeinescapableshortcomingsinthesemethods,suchaslowefficiency,largelaborintensityandbadprecisionetc.Thusmeasurementhasbecomethebottleneckofthequ
