海水ORP常规流动测量装置计量特性初探

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ORP王爱军,王 聪,马传芳(,300112):,ORP,,ORP5mV,ORP4mV,,:ORP;;;:P71,TB9:B:1003-2029(2007)02-0078-06,ORP(OxidationReductionPotential),,ORP70,,,ORP,,ORP,,(),,ORPORP,,ORP,ORP,,,,:2007-01-151ORPORP(),:E=E0+2.3RTnFlnOxRed(1):E0,mV;R,8.314J/K.mol;F,9.649104c/mol;T,K;n(1),Ox,Red2.3RTFORP,,pHORP,,ORP,(),,,()(),ORP,ORPORP,,:26220076OCEANTECHNOLOGYVol.26,No.2june,2007H22H++2e-E=E0+2.3RT2Fln[H+]H2(2),,,:Eh=E0+Eref(3):Eh,mV;E0(Ag-AgCl),mV;Ereft(Ag-AgCl),mVAg-AgCl11Ag-AgCl()(mV)()(mV)()(mV)()(mV)012345678910+236.6+236.1+235.6+235.1+234.6+234.1+233.6+233.0+232.5+231.9+231.41112131415161718192021+230.8+230.3+229.7+229.2+228.6+228.0+227.4+226.8+226.2+225.6+224.92223242526272829303132+224.3+223.6+223.0+222.3+221.6+221.0+220.3+220.0+219.0+218.3+217.63334353637383940414143+217.0+216.3+215.6+214.9+214.2+213.5+212.8+212.1+211.4+210.6+210.02ORP2.1(1),:01999mV,:0.1mV;(2);(3)Ag-AgCl;(4),,:1000ml;(5)2.22.2.1(pH=4.00,25)10.12g(KHC8H4O4),1000ml(1530min,)2.2.2(pH=6.86,25)3.39g(KH2PO4)3.55g(Na2HPO4),1000ml2.2.3(pH=9.18,25)3.80g,1000ml2.2.4ORP:10g1000ml,pH=1ORP4.00,pH=6.86pH=9.18,,(E0)22.3ORP2.3.1ORP,:(1)2.12.2ORP,pH;(2),,(100792:ORPrp/min)pH,,ORP(E0,0.1mV)(0.1),2min;(3)ORP(E0),(5)pH,pH,2ORP(E0);(4)(4)2minORP(E0)E0E0,E0maxORPE0=E0-E0(4)2.3.2ORP,:(1)2.3.1(1)2.3.1(2),15,3135ORP6,,5minORP(E0,0.1mV)(0.1);(2)E,1(Ag-AgCl)(Eref),(3)(Eh);(3)62.3.3(1)2.3.1(1)2.3.1(2),1531ORP,30s,ORP(E0,0.1mV)(0.1);(2)2.3.2(2)(Eh);(3)Eh(mV)t(min),Eh(mV)t(min)2.42.4.1pHORP2,18,ORP2min,2min2,pH,0.4mV,2.4mV,3mV,5mV2pH()Eo(mV)Eo(mV)(mV)(min)pH=4.1218.3218.9218.50.42pH=6.9017.257.359.0-1.72pH=9.2517.6-78.6-76.2-2.42,ORP,,,2min,,,ORP,,,,,40100mV,,,,,,,,,,pHORP,,ORP,(),ORP,,,ORP2.4.280262.3.2,,ORP,ORP,5min33ORP()Eh(mV)123456(mV)(mV)(%)1418.2469.47470.07470.07471.77472.07473.77471.201.630.343117.95484.41491.11486.21490.09484.99485.89487.122.790.573418.35500.05497.14500.95495.85494.55503.21498.633.320.66ORP,18,3,1434,1.63(mV)3.32(mV);4.310-36.610-3,ORP,,,()()(5min),ORP,ORP,,,,,,ORP,ORP,ORP,3,141.63mV0.34%,2.4.3ORP,,ORPORP,,2:,17.7,1431,,7h,2ORP10hEh(mV)t(min),14,ORP449mV,40minORP539mV,,ORP,100min31,ORP443mV,,ORP,218min544mV,,ORP,14ORP539mV,3h;31ORP544mV,10h,7h,ORP5mV,,ORP,,ORP,,,,Eh(mV)t(min),,ORP,812:ORP3,ORP4pH(E0),,pH,()pH,pH,,pH,pH,,,4(mV)pH152025304227.5223.1218.6214.25170.4164.8159.5154.16113.3106.7100.494.0756.248.641.333.98-0.9-9.4-17.8-26.39-58.0-67.5-76.9-86.4(1)(5)pH:pH=455-0.09(t-25)-E059.1+0.2(t-25)(5):pHpH;t,;E0Ag-AgCl,mV(2)pHt(),4E0;(3)t(),1Ag-AgCl(Eref,mV);(4)E0Eref,(3)(Eh,mV)44.1ORP2min,5mV;ORP,5min,4mV;4.2ORP10h,,;4.3,540mVORP,,,ORP,ORP4.4,ORP,ORP;4.5ORP,pH:[1],HY003.1-91HY/T003.10-91[M].:,1992.[2]..,1989.[3]().SL94-1994,1995.[4]ORPmeasurement,[5].(ORPEh)..8226PrimaryStudyontheMetrologicalPropertiesofseawaterORPNormalFlowMeasuringInstrumentWANGAi-jun,WANGCong,MAChuan-fang(NationalMarineStandardsandMetrologyCenter,Tianjin300112,China)Abstract:Theoxidationreductionpotential(ORP)ofseawateristheimportantparametertoknowtheseawaterelectrochemistrycharacteristicsandprovidethepreventionandrecoveryresolutionsfortheseawaterpollution.Basedonthelargenumbersofexperiments,itisprimarilystudiedonthemetrologicalpropertiesandthemeasuringmethodsofnormalORPmeasuringinstrument.Theresultsshowedthatthevalueerrorandtheprecisionofthemeasuringinstrumentreachedupto5mVand4mVrespectively,indicatingthatitcouldbeoneofthepivotalfoundationsformetrologyverification.Inaddition,thepaperalsointroducessomeotherproblemssuchashowtocalculatethestandardvalueoftheORPstandardsolution.Keywords:ORP;instrument;metrologyproperties(77)TheAnalysisofInertialMeasurementTechnologyAppliedtotheOilorGasWellboreZHANGGui-lian1,ZHOUZhan-xin2,LUMing-bo3(1.PetrochinaDaqingRefining&PetrochemicalCompany,Daqing163411,China;2.CollegeofElectronicsandInformationEngineering,TongjiUniversity,Shanghai200092,China;3.SchoolofInformationScience,HulunbeierCollege,Hulunbeier0210008,China)Abstract:Thedevelopmentofdomesticinertialmeasurementtechnologyusinginoilwellboredrillingwaspresented.Theinertialmeasurementprojectappliedtotheoilorgaswellboresurveryoffshoreonoildrillingplatformwasanalyzed.Atlast,themeasurementtechnologyonfiberopticgyroisexpectedtobethefutureresearchexposure.Keywords:InertialMeasurement;oilorgaswellboresurveryffshore;OilDrillingPlatform;fiberopticgyro832:ORP

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