,(,518055)[]2004-03-01;[]2004-03-10[](1968-),,,,,[],,,[];;[]TH93[]B[]1002-1183(2004)06-0033-03PrincipleandoperationofdustparticlecounterCHENCheng2xin,LIMing2zhao(ShenzhenInstituteofMetrologyandQualityInspection,Shenzhen518055,China)Abstract:Thispaperpresentsthemeasurementprinciplesandgeneraloperationofopticaldiscretedustparticlecounter1Itpro2videthebasisforchoosingandusingdustparticlecounter,italsoprovidethebasisformaintainandcalibration1Keywords:particle;counter;principle,,,,(DAPC),01110m,(CNC),1,,,,,,,,,,,,1:1,,,2,,,,,,,22332004146METROLOGYTESTTECHNOLOGY&VERIFICATION©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[1],,,,(9070),213,,,,,,214,,,2183L/min2813L/min(,011cfm1cfm),Fed-Std-209E(2813L/min),215,013m,216,(),,,,,013m69mV,015m531mV,110m701mV,100mV,013m015m,,013m,69mV,015m,531mV,,,,,3:(cumulative)(differential),43IndustrialMeasurement2004Vol114No16METROLOGYTESTTECHNOLOGY&VERIFICATION©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(),,,20min,40%,20%4[2],,,,,,[][1].[M].:,2003.[2]JJG547-1988,[S].[:](,213004)[]2004-01-13;[]2004-02-03[](1956-),,,,,[],,3,[];;[]TB93[]B[]1002-1183(2004)06-0035-02CalculationprogramofcubagelistforhorizontalmeterpotwithellipsoidcopCHENGuo2rong(ChangzhouPeakChemicalIndustryCo.Ltd,Changzhou213004,China)Abstract:Thecalculationofcubagelistforhorizontalmetalpotwithellipsoidcopinvolvesmanyformulaswithsigns,andcom2putingisverycomplicated.Forgettheresultaccuratelyandquickly,ithasbeentodeducetotheformulaandweaveprogram.Incomputing,inputthreeparameters,thenthecubagelistcanbegotimmediately.Keywords:Standardcloseover;ellipsoidcop;cubagelist,,,a,b,,,a,,aD/21,DL1,L2,h,bhD/4,ba12532004146METROLOGYTESTTECHNOLOGY&VERIFICATION©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.