传感器 外文翻译 外文文献 英文文献 分布是温度传感器Word文档格式.docx

传感器 外文翻译 外文文献 英文文献 分布是温度传感器Word文档格式.docx

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TypicalproductshaveAD590AD592,TMP17,LM135,etc.jAnalogintegratedtemperaturecontroller.Analogintegratedtemperaturecontrollermainlyincludetemperaturecontrolswitch,programmabletemperaturecontroller,atypicalproducthaveLM56,AD22105andMAX6509.Someincreasestrengthtypeintegratedtemperaturecontroller（forexampleTC652/653）alsocontainstheA/Dconverterandcuregoodsequence,thisprocesswiththeintelligenttemperaturesensorsomesimilarities.Butitisnotitssystem,workbymicroprocessingdevicecontrol,thisisthemaindifferencebetween.Intelligenttemperaturesensor.intelligenttemperaturesensor（alsocalleddigitaltemperaturedegreessensor）isinthemid1990slaunch.Itismicroelectronicstechnology,computertechnologyandthedynamictestingtechnology（ATE）crystallization.Intelligenttemperaturesensorinternalcontaintemperaturesensor,A/Dconverter,signalprocessor,memory（orregisters）andinterfacecircuit.Someproductsstilltakemultiplexer,centralcontrolsystemdevice（CPU）,randomaccessmemory（RAM）andreadonlymemory（ROM）.Intelligenttemperaturesensorischaracteristicoftemperaturedataandrelevantcanoutputthetemperaturecontrolofthequantity,adaptationvariousmicrocontroller（MCU）;

Thedevelopmenttrendofthetemperaturesensor.Inthe21stcentury,thetemperaturesensorisheadedinhighprecision,multi-function,bus,standardization,highreliabilityandsafety,developmentofvirtualsensorandnetworksensor,researchmonolithictemperaturemeasuringsystemandotherhigh-techdirectiondeveloprapidly.Sensorsintheapplicationtemperaturecontrollingsystem.Currentmarketexistsmainlysinglepointandmoretwotemperaturemeasurement.Forsinglepointtemperaturefoundmentinstrument,mainlyadoptsthetraditionalanalogintegratedtemperaturesensor,whichheatresistance,thermocouplesensorsmeasuringaccuracy,highmeasurementrange,andgotthegeneralapplication.Thisproductistemperaturemeasuringrange℃~200mostlybetween800℃,resolution12th,andleastdistinguishabletemperaturein0.001~0.01between.CabinLEDdisplaymodule,showsrangingfrom4to16.Someinstrumentsalsohasmemoryfunction,canstoreseveralhundredtoafewthousandsetsofdata.Thisinstrumentcanbeverygoodmeetasingleusersingle-pointmeasurementneeds.Moretemperaturemeasurement,relativeandsinglepointmeasurementprecisionhascertaingap,althoughrealizedthemulti-channeltemperaturemeasurementandcontrol,butthepriceisexpensive.Inviewofthepresentmarketsituation,proposedthistopiccansatisfyrequirements,scalableandcost-effectivesingle-chipmulti-channeltemperaturemeasuringsystem.ThroughthefirsttemperaturesensorDS18B20acquisition,andthenthroughtheC51SCMprocessinganddisplayedonthedigitaltube,canbecollectedindoororagreenhousearoundindifferentlocationsofthetemperature,withfourdigitaltubetodisplay.Thefirstdigitalpipedisplayacquisitioniswhichway,whichchannel.Threedigitalpipedisplayaftertheacquisitionchannelbytemperature,accurateto0.1degrees.

AT89C51isa4KbytesFLASHMemory（ErasableProgrammableandFPEROM-FLASHforthecampaignswith）lowvoltage,high-performanceCMOSeightmicroprocessors,commonlyknownasthemicrocontroller.AT89C2051isa2Kbyteswithflashmemorycanbeerasedprogrammableread-onlymemory,SCMcaneraseread-onlymemorycanberepeatederased1000times.ThisdeviceadoptsATMELhigh-densitynon-volatilememorymanufacturingtechnologymanufacturing,andindustrialstandardMCS-51instructionsetandoutputtubecompatible.Duetothemultifunctional8bitsCPUandwillbeflashingonsinglechipcombinationofmemory,ATMELAT89C51isakindofhighefficientmicrocontroller,AT89C2051isastreamlinedversion.AT89C51microcontrollerasmanyembeddedcontrolsystem.Arrangeappearanceandpinasshowninfigure"

1-2"

shown

1-2AT89C51pinsfigure

Majorfeatures:

·

andMCS-51compatible

4KbytesprogrammableFLASHmemory

life:

1000write/wipecycle

dataretentiontime:

10years

thestaticjob:

0Hz-24MHz

level3programmemorylock

128x8bitsinternalRAM

32programmableI/Olines

two16timer

5interruptsource

programmableserialchannels

lowpowerconsumptionofidleandpowerlostmode

pieceinsideoscillatorandclockcircuit

Tubefeetexplains:

VCC:

powersupplyvoltage.

GND:

grounded.

P0Mouth:

P0mouthaeightleakleveltwo-wayI/Omouthopen,everyfootcanabsorb8TTLgatecurrent.WhenthepipemouthP0feetfirstwrite1,definedashighresistanceinput.P0canbeusedforexternalprogramdatastorage,itcanbedefinedastheeighthdata/address.InFIASHprogramming,P0mouthasthesource-codeinputport,whenFIASHcheck,thesource-codeP0output,whenP0externalmustbepulled.

P1mouth:

mouthisaninternalP1providepull-upresistors8-bittwo-wayI/Omouth,P1mouthbuffercanreceive4TTLgatecurrentoutput.P1mouthtubefeet,wasthenwrite1forhigh,pullupinsidecanbeusedasinput,P1mouthbeexternalpulldownforlowelectricityatordinarytimes,willoutputcurrent,thisisduetointernalpullupsake.InFLASHprogrammingandcalibration,P1mouthaseighthaddresstoreceive.

P2mouth:

foraninternalP2mouthonthe8-bitpull-upresistorstwo-wayI/Oport,P2mouthtoreceive,theoutputbuffer4TTLgatecurrent,whenP2mouthiswritten"

1"

itstubefeetareinternalpull-upresistors,andpushasinput.Andsoastheinput,P2mouthfeetareexternaldowntube,willoutputcurrent.Thisisduetointernalpullupsake.P2mouthwhenusedexternalprogrammemoryor16addressexternaldatamemoryaccess,P2mouthhighoutputaddresseight.Inagivenaddress"

itusinginternalandexternal8addressadvantage,whenforreadingandwritingdatamemory,P2whenthespecialfunctionregistersmouthoutputofcontent.P2mouthinFLASHprogrammingandthecalibrationeightaddresswhenreceivinghighsignalandcontrolsignals.

P3mouth:

P3mouthpipeis8feetwithinternalpull-upresistorstwo-wayI/Oport,mayreceivefourTTLgatecurrentoutput.WhenP3mouthwriting"

theyareinternalandhighlevel,andusedasinput.Asinput,duetoexternaldrop-downforlowlevel,P3mouthwilloutputcurrent（ILL）thisisduetopullup'

ssake.

RST:

resetinput.WhenoscillatorresetdevicetokeepRSTfeethighleveltwomachinecycletime.

ALE/PROG:

whenaccessexternalstorage,addresslatchallowstheoutputlevelofthepositionforlatchaddressbyte.DuringtheFLASHprogramming,thispinforinputprogrammingpulse.Inpeacetime,theALEwithaconstantfrequencycycleoutputisthepulsesignal,thefrequenciesofthe1/6oscillatorfrequency.Soitcanbeusedagainstexternaloutputpulseorusedfortimingpurpose.Howeveritis:

wheneverusedforexternaldatastorage,willskipaALEpulse.IfyouwanttobantheALEoutputcanbeinSFR8EHaddressfor0.Atthistime,onlybyperformingtheALEMOVX,MOVCinstructionisALEtotakeeffect.Inaddition,thepinswereslightlyup.IfmicroprocessorinexternalexecutionALE,buyabanisinvalid.

/PSEN:

externalprogrammemorychoiceofcommunicationnumber.Byexternalprogrammemoryinduringtheinstructionfetch,eachmachinecycletwice/PSENeffective.Butonavisittoexternaldatastorage,thetwoeffective/PSENsignalswillnotappear.

/EA/VPP:

when/EAkeeplowlevelsinthisperiod,theexternalprogrammemory（0000H-FFFFH）,whetherhaveinternalprogrammemory.Noteencryptionmethod1,/EAwillRESETforinternalfocus;

When/EAendkeephighelectricityatordinarytimes,internalprogrammemoryhere.DuringtheFLASHprogramming,thispinisalsousedVPP12Vprogrammingpower（on）.

XTAL1:

theinvertingoscillatoramplifierinputandinputtotheinternalclockoperatingcircuit.

XTAL2:

fromreverseoscillatoroutput.

KeilVision2isaboutthe8051seriesMCUKeilcompanyofdevelopmenttoolscanbeusedtocompileCsourcecode,assemblerssourceprogram,connectionandrelocationtargetfilesandlibraries,genbuilt:

documents,debuggingpurposesprocedure,etc,itisakindofintegrationofdocumentmanagementcompileenvironment.Itintegratesdocumenteditingprocessing,compileconnection,projectmanagement,window,toolscitedandsoftwarecopytruedebuggingandotherfunctions,isprettypowerfuldevelopmenttool.Inkeilinsidecompile,thep