OM便携式紫外臭氧检测仪:2BTechhastakenthenextstepinminiaturizationofUV-basedozonemonitorsbydevelopingthePersonalOzoneMonitoror"POM".ThePOMhasdimensionsof4x3x1.5inchesandweighsonly0.75lb(340g).IthasabuiltinGPSsothatozonemeasurementsmaybeloggedcontinuouslyalongwithgeographiclocation.Byfoldingtheopticalpathintheshapeofa"U",itwas*sibletoachievethesamepathlengthinthePOMasintheModels202,205and106-Landthush*esimilarprecisionandaccuracy(~2ppb).Personalex*uremonitoringforstudiesofhealtheffectsofairpollutantsHealthandsafetymonitoringatindustrialsitesusingozoneVerticalprofilingusingballoons,kites,RPVsandlightaircraftwherespaceandweightarehighlylimitedLong-termmonitoringatremotelocationswherepowerishighlylimitedUrbanarraysofground-baseddetectorsSpecificationsMeasurementPrincipleUVAbsorptionat254nmLinearDynamicRange2.0ppbto10ppmResolution0.1ppbPrecision(1σ;rmsnoise)Greaterof2.0ppbor2%ofre*gAccuracyGreaterof2.0ppbor2%ofre*gLimitofDetection(2σ)4.0ppbNIST-TraceableCalibrationYesMeasurementInterval10s(Data*eragingoptions:10s,1min,5min,1hr)FlowRate(nominal)~0.8Liter/minFlowRateRequirement>0.5L/minBaselineDrift