外文文献及翻译基于单片机的电子称设计Word下载.docx

外文文献及翻译基于单片机的电子称设计Word下载.docx

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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?

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;

PartVIIoftheelectronicscale

inspectionprocess:

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,withoutprejudicetotheoriginalmechanicalscalestoany

transmissionbearingstructure.Therearepeeled,settozero,thecumulativenumberoftimes,thecumulativeweight（cumulativeamountofvaluation-based）,auto-zeroing,auto-trackingandotherfunctions.Weighingdatacanbedirectlyprintedortransmittedviacomputernetworks,industrialprocessescanimprovethelevelofscaleandproductquality,tradeclearingwiththescalecanimprovethecredibilityofincalculablesocialandeconomicbenefits.

ElectronicScaleisbasicallyasensor,amplifiercircuit,A/Dconversioncircuit,microcontrollercontrolofdisplayparts,switchmatrixcircuit,thekeyboardcircuitandpowercircuit.Weightsensorsignalsareconvertedtoacorrespondingelectricalsignal,afteramplifiedintotheA/Dc