ORP的测量及数显ORP标定的原理

27120062:JournalofHenanUniversityofScienceandTechnology:NaturalScienceVol.27No.1Feb.2006:(0211062000);(2001513):(1971-),,,;(1960-),,,,.:2005-03-07:1672-6871(2006)01-0018-03ORPORPa,b,a,a(a.;b.,471003):,,ORP:;;;:TH183.3:A0,(ORP)()[1],ORP(ORP),ORP1ORP,,,,()(),[2](NHE),,,,ORP[1],Ox+ne=Red(1)ORPEOx/Red=E0Ox/Red+(0.059/n)lg(AOx/ARed)(2)EOx/RedOx/Red,ORP;Ox;Red;E0Ox/RedOx/Red,;AOx,ARed(=@);ne,,,,,[3]EOx/Red=E0'Ox/Red+(0.059/n)lg(cOx/cRed)(3)E0'Ox/RedOx/Red,;cOx,cRed;n,,,[3]ORP,,,E1=E2=E3=,=E([4])E[4],1mol/LH2SO4,0.100mol/LCe(SO4)0.100mol/LFeSO4[3],Ce4++Fe2+=Ce3++Fe3+,,,,,(3)E0'Fe3+/Fe2++0.059lg[c(Fe3+)/c(Fe2+)]=E0'Ce4+/Ce3++0.059lg[c(Ce4+)/c(Ce3+)]0.1%Fe2+,c(Fe3+)/c(Fe2+)U999/1:E=E0'Fe3+/Fe2++0.059lg[c(Fe3+)/c(Fe2+)]U0.68V+lg999@0.059VU0.86V,,,,,pH[5]2ORPORP(),,1,(ORP),-,[1]1,,-,-,Eind=En-Eref:En=Eind+Eref,En;Eind;Eref-3ORPORP()(KClAg-AgCl),ORP,pH=4.01,,265mV:,C6H4O2#C6H4(OH)2,Q#H2Q,H+,(Pt)[6],Q+2H++2eyH2QQ;H2QE=E0+(RT/2F)ln[A(Q)A2(H+)/A(H2O)],A(Q)A(H2O)(C=1mol/L),E=E0+0.0592lgA(H+)=E0-0.0592pH=(0.6994-0.0592pH)V=(699.4-59.2pH)mV#19#1:ORPORPORP,(KClAg-AgCl)PH=4.01,[7]Ag-AgCl+(pH=4.01)|Pt(S)25eE=E-E(Ag-AgCl)=(699.4-59.2pH)mV-E(Ag-AgCl)(14)KClAg-AgCl,25e199mVE=(699.4-59.2pH)mV-199mV=(500.4-59.2pH)mV(15)pH=4.01,EU265mV(16),(KClAg-AgCl),pH=4.01265mVORP,ORP,,,[8]:(1),0.1mol/L30min,,6h;(2),,6h;(3),,,6hORP:pH=4.01(250mL),250mL,56gKCl,,ORP,,,ORP,,1min,4(),ORPORP():[1],,,.ORP[J].,2003,19(5):20-22.[2]DAVIDG,JEFFM.ORPMeasurementsinWarterandWastewater[J].UltrapureWaterJournal,1993,25(5):26-31.[3],.[J].,2000(6):65-67.[4],,,.DOORPpHSBR[J].,2001,17(4):6-11.[5],.ORPSBR[J].,1997,13(6):6-9.[6],,.[J].:,2005,26(5):95-97.[7],KOCHFA.[J].,1988,4(3):15-18.[8]PAULE,PLISSON-SAUNESM.ProcessStateEvaluationofAltematingOxie-anoxieActivatedSludgeUsingORP,pHandDO[J].WatSciTech,1998,38(3):299-306.#20#:2006College,HenanUniversityofScience&Technology,Luoyang471003,China)Abstract:Thepositionoftheleastsquarecenterforacrosssectionintheabsolutecoordinatesystemisanimportantfactorthataffectscylindricalformerrors.Todeterminethispositionisthebasisonwhichcylindricalformerrorscanberetraced.Atpresent,thereisnoefficientwaytoretracetheeccentricerrormotionofthecenterfromtheseparatedrevolvederrormotion.Sinceone-orderharmoniccomponentofpurerotationerrormotiononlyaffectsthepositionofreconstructedcylinderintheabsolutecoordinatesystemsanddoesnotaffectthevalueofcylindricity,anewmethod,namedcosineregressionpurifying,totaketheleastsquarecentersmotion(i.e.cylindricityreconstructiondatum)outofrotaryerrormotionispresented.Thatis,theeccentricerrormotionisreplacedbytheone-orderharmoniccomponentoftherotationerrormotion.Thetestresultindicatesthatthepositionoftheleastsquarecenterspurifiedbythismethodhasgoodrepeatabilityintheabsolutecoordinatesystems.Thereconstructiondatuminthecylindricitymeasurementcanbeeasilydeterminedbymeansofthismethod.Keywords:Cosine;Regressions;Reconstructiondatum;Leastsquarecenter;Non-cylindricitymeasurementCLCnumber:TH161.5;TG806Documentcode:AArticleID:1672-6871(2006)01-0013-05ORPMeasuringMechanismandCalibrationStandardsandPrinciplesforDigitalORPMeters(18),HONGYana,GUOQiu-Meib,DONGTie-Youa,HANJian-Guoa(a.Food&BioengineerCollege;b.ElectromechanicalEngineeringCollege;HenanUniversityofScience&Technology,Luoyang471003,China)Abstract:Theconcept,calculationandmeasurementoftheoxidizing/reducingpotential(ORP)areanalyzed,andtheapplicationaswellascalibrationprinciplesofdigitalORPmetersareexplainedwithchemicalreactionformulas.Also,thephysicalsignificanceofOPRinenvironmentcontrolandinspectionisdiscussedindetail.Keywords:Oxidizing/reducingpotential;Environmentalprotection;Measurement;CalibrationCLCnumber:TH183.3Documentcode:AArticleID:1672-6871(2006)01-0018-03#TrafficandTransportation,EnergyandPowerEngineering#DesignandSimulationofaLowPowerConsumingRotateElectromagneticActuator(21),,,,,WANGMeng-Hua,YANGTie-Zao,ZHANGBao-Heng(Vehicle&MotivePowerEngineeringCollege,HenanUniversityofScience&Technology,Luoyang471003,China)Abstract:Asthekeypartsinelectronicspeedgovernorsystems,actuatorsaffectthegovernorsystems.performancetoalargeextent.Basedontheanalysisofandcomparisonamongsuchactuatorsasstepelectromotors,directcurrentservoelectromotorsandscaleelectromagnets,thedesignandmathematicmoduleforarotateactuatoroflowpowerconsumingandhighresponseisprovided.Bysimulating,bymeansofMATLAB,thefrequencyandstepresponseofpositionalloopsmadeofcomparativecircuits,PIadjustors,actuators,andsoon,thestabilityandreliabilityoftherotateactuatorisproved.Andbymeasuringtheworkingcurrentoftherotateactuator,itstraitoflowpowerconsumingisalsoverified.Keywords:Dieselengines;Speedcontrollers;Electronfuelregulationsystem;Actuator;Simulation;PowerlossCLCnumber:TK424.31Documentcode:AArticleID:1672-6871(2006)01-0021-03DesignofaNewValveinResonantIntakeSystemsofGasFuelEngines(24),,,,,,,,,GUNing,CHENChuan-Ju,JIAL-iDong,BAIPeng-Fei(Vehicle&MotivePowerEngineeringCollege,HenanUniversityofScience&Technology,Luoyang471003,China)Abstract:Foragasfuelengine,thedecreaseinvolumetricefficiencywillreducetheengine.smaximumtorqu