最新推荐基于单片机的电子电子秤的设计外文文献.docx
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最新推荐基于单片机的电子电子秤的设计外文文献.docx
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最新推荐基于单片机的电子电子秤的设计外文文献
原文
ElectronicScales
Electronicscalesareweighingtechnologyinanewtypeofinstrumentiswidelyusedinvariousoccasions.Electronicscalesandmechanicalscaleshavemoresmallsize,lightweight,simplestructure,lowpriceandpracticalvalueofstrong,convenientmaintenanceandsooncanbeinavarietyofenvironmentalwork,theweightofthesignalcanbeRemote,theweightofdisplayiseasytoimplementdigital,easy-to-computernetwork,productionautomation,higherlaborproductivity.Scalelabelsinthesupermarketisintheapplicationoffacevalue.Asmalllabelcontains:
name,price,weight,etc.11listinthissmallelectroniclabel.Greatlyacceleratedtheuseoflabelmachinesalespace,butalsoconvenientforcustomers.Topbarcodelabelshavemanyremarkablefeaturesofscale,Ethernetfeaturemakesthemanagementmoreconvenient.
ElectronicScaleClassification(scalescanbedividedintomechanicalandelectronictype)
1.Howitworks:
electronicworksinelectroniccomponents(weighingsensor,ADconversioncircuit,microcontrollercircuits,displaycircuit,keyboardcircuitry,communicationsinterfacecircuits,regulatedpowersupplycircuitcircuit.
2.usingthefunction:
electronicweighingtheuseofmodernsensortechnology,electronicsandcomputertechnologyintegration,electronicweighingdevices,inordertomeetandsolvereallife's"fast,accurate,continuous,automatic"weighingrequirements,whileeffectivelyeliminatinghumanerror,tomakeitmoreinlinewiththemanagementoflegalmetrologyandindustrialproductionprocesscontrolapplications.
3.Threehealthscalesareweighingtheuseoffeaturesinacategory(dividedintomechanicalandelectronic),inexpensive,itcanhelppeopletoeffectivelymonitortheirownbodyweightchanges,newproductsalsocandetecttheirfatcontent,butalsoSomehuman-orientedsubsidiaryfunctions.Maynotbepartofmeasuringequipment.
4.ElectronicScaleisameasurementofthestatecompulsorytestapparatus,andhisqualifiedproductsaretestindexingthevalueofDvaluesofeandsubdivisionstandards,issubjecttotheprotectionofthenationalmetrologyproducts.Intheelectronicweighingthereisacategorycalled"humanscale"products,whichcantestinthemeasurementsector,weighingveryprecise.
Blockdiagraminterpretationoftheprincipleofelectronicbalance
Thefirstpartoftheelectronicscaleprincipleblockdiagram:
ProgramK/B(button)↑Fx→Sensors→OPZoom→A/Dconverter→CPU→→displaydriverdisplaymemory
WorkflowNote:
Whenanobjectonthepanwhenthepressurefacilitiestothesensorthatoccurreddeformation,sothatresistancetochange,whiletheuseofexcitationvoltagechanges,theoutputofachangeinanalogsignal.ThissignalamplificationbytheamplifieroutputtotheADC.ConvertedtofacilitatetheprocessingofthedigitalsignaloutputtotheCPUoperatorcontrol.CPUunderthekeyboardcommandsandprogramoutputtodisplaythisresult.Untiltheshowsucharesult.
Thesecondpartofthescaleoftheclassification:
1.Accordingtoprinciplesofpoints:
E-scalemechanicalscalemechanicalandelectricalintegrationscales2.Accordingtothefunctionssub:
CountingScalesWeighingScalePricingScale3.Purpose:
IndustrialCommercialScalesSpecialScalesBalance
Thethirdpartofthescaletypes:
1.ThefullnameofthedesktopScalereferstothevolumeoflessthan30Kgelectronicscale2.Thefullnameofplatformscalereferstothevolumewithinthe30-300KgElectronicScale3.Loadometerfullnamereferstothevolumeofmorethan300KgElectronicScale4.PrecisionBalance
4thPartoftheaccuracyofclassification:
IClass:
Specialscalesprecision≥1/10WanIIlevel:
high-precisionscale1/10000≤precisionof"1/100,000III:
theaccuracyofscale1/1000≤precisionof"1/10000ClassIV:
CommonScale1/100≤precisionof"1/1000.
PartVofprofessionalterminology:
1.Maximumweighing:
anelectronbalance,excludingtareweight,themaximumloadcanweigh;2.Minimumweigh:
aelectronicscalesbelowthevaluethatwouldhaveoccurredwhenarelativelyerror;3.safeload:
120%ofthenormalweighingrange;4.Ratedload:
normalweighingrange;5.permissibleerror:
classtestwhenthemaximumdeviation;6.asenseofquantity:
asingleelectronicscalescanshowthesmallestscale;usually"d"torepresent;7.analyticcapacity:
afunctionwithacountoftheelectronicscales,candistinguishthesmallestscale;8.Resolution:
acountingfunctionwithanelectronicscale,theinternalcapacityofaResolutionofaparameter;9.Warm-uptime:
ascaleusedtoachievethetargetsofthetime;10.Accuracy:
Thefullnameofasenseofvolumeandvolumeratios;11.electronicscaleuseofenvironmentaltemperature:
-10degreesCelsiusto40degreesCelsius12.platformscaleThetablesize:
25cmX30cm30cmX40cm40cmX50cm42cmX52cm45cmX60cm
PartVIelectronicscalefeatures:
1.Toachievelong-distanceoperations;2.Toachieveautomaticcontrol;3.Figuresshowthatanintuitive,reducehumanerror;4.Highaccuracyandresolutionstrong;5.Weighingrangeiswide;6.uniquefeatures:
buckleweight,withholdingweight,zero,accumulated,warning,etc.;7.maintenancesimple;8.sizeissmall;9.installation,calibrationsimple;10.specialindustry,canbeaccessedbytheprinterorcomputer-driven;11.Intelligentelectronicscale,quickreaction,highefficiency;PartVIIoftheelectronicscaleinspectionprocess:
1.First,theoverallexamination:
whetherthewearandtear;2.Whethertheboot:
thebootsequenceisfrom0to9inturnshowsthatfiguresarevague,canzero;3.Whetherthebacklight;4.withtheweighttestsinweighing;5.chargersisintact,canuse;6.partsarecomplete;PartVIIIsensortype:
1.Resistive:
affordable,highaccuracy,widelyused;2.Capacitive:
smallsize,lowprecision;3.Maglev-style:
specialhigh-precision,highcost;4.Hydraulicformula:
thecurrentthemarkethasbeeneliminated;DisplayType:
1.LCD(liquidcrystaldisplay):
freeelectricity,energy-saving,withbacklight;2.LED:
freeelectricity,powerconsumption,verybright;3.Lamp:
electricity,powerconsumption,high;K/B(button)type:
1.filmbutton:
contacttype;2.mechanicalbuttons:
madeupofmanyindividualcombinationsofkeystogether;sensorcharacteristics:
1.ratedload;2.outputsensitivity;3.non-linear;4.hysteresis;5.repeatable;6.creep;7.12:
00outputeffects;8.ratedoutputtemperature;9.12:
00input;10.inputimpedance;11.outputimpedance;12.InsulationResistance;13.toallowexcitationvoltage;(5-18V)
PartIXsensordamagedphenomenon:
1.Weighingnotallowed;2.Showsnoreturntozero;3.Showsthenumberofbouncetojudgethesensor+E,-E,+S,-S1.Thefirsttouseresistanceprofilemeasurement4-line22Thisresistancevalue,atotalof6groups.Thecaseof400-450,comparedwithEurope+E,-E;ifitis350inEurope,comparedto+S,-S;forthe290inEurope,comparedtoR-arm;2.+E,-Eterminatedonthe+1.5Vvoltage
Sensorcorrectlytoexertapressure,suchastheoutput+_Sincrease,thentheredtablepensas+S,thecontrary-S;10thpartofthehigh-precisioncountingscalefeatures:
1.Kg/Ibunitconversionfunctions;2.12:
00displayrangeadjustmentfunction(GLHseriesdoesnot)3.Samplingspeedadjustmentfunction;4.Thereare10groupsmemoryfunctionsinglet;5.maybeatthesametimetheweight,quantity,thecumulativefunction(GLHonlythenumberofcumulative)6.cansettheweight,themaximumamountofwarningfunction;7.automaticzerotracking,temperaturelinearcorrection;8.deductionofwithholdingheavyweightandfunction;9.Standbyfunction;10.thereiszeroshowszerotrackingrangeandscope;11.thereisthebatteryvoltagecontroltolimitthefunction;Electronicscalesareweighingtechnologyinanewtypeofinstrumentiswidelyusedinvariousoccasions.Electronicscalesandmechanicalscaleshavemoresmallsize,lightweight,simplestructure,lowpriceandpracticalvalueofstrong,convenientmaintenanceandsooncanbeinavarietyofenvironmentalwork,theweightofthesignalcanbeRemote,theweightofdisplayiseasytoimplementdigital,easy-to-computernetworking,processautomationofproductionandimprovelaborproductivity.ElectronicScalealsohasanautomaticzerotracking,overloaddisplayofself-extinguishingcharacteristics.
Mechanicalscales,floorscale/landinthevalue(carvalue),weigh-bridgesandotherfittedforce-sensitivesensorsandmicrocomputer-controlledintelligentweighinginstrumentsbecomeintelligentdigitalelectricalandmechanicalbalance(orthemechanicalandelectricaldual-usescales),toimprovethemechanicalbalanceofthemeasurementaccuracy,withlowcost,highreliability,simpleinstallationandsoon,withoutprejudicetotheoriginalmechanicalscalestoanytransmissionbearingstructure.Therearepeeled,settozero,thecumulativenumberoftimes,thecumulativeweight(cumulativeamountofvaluation-based),auto-zeroing,auto-trackingandotherfunctions.Weighingdatacanbedirectlyprintedortransmittedviacomputernetworks,industrialprocessescanimprovethelevelofscaleandproductquality,tradeclearingwiththescalecanimprovethecredibilityofincalculablesocialandeconomicbenefits.
ElectronicScaleisbasicallyasensor,amplifiercircuit,A/Dconversioncircuit,microcontrollercontrolofdisplayparts,switchmatrixcircuit,thekeyboardcircuitandpowercircuit.Weightsensorsignalsareconvertedtoacorrespondingelectricalsignal,afteramplifiedintotheA/Dconvertedintopulsesweight,throughtheSCMunderthecontroloftheanalogvoltagesignals
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