光纤收发的空气差分吸收光谱测量方法研究(4)

发布时间:2021-06-07

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,,,,WEIYonieGENGXiaouanCHENBoLIUCuicuiCHENWenliangjjg

,H,1.SchoolofMechanicalEnineerinebeiUniversitfTechnoloTianin00130,China 3ggyogyj

,Tianin00457,China2.TianinShareshineScience&Technoloo.Ltd. 3jjgyC

,犃犫狊狋狉犪犮狋hedifferentialoticalabsortionsectroscostemispresentedtomonitorairpollutantssuchasSONOetc. Tppppysy2,2,Thesstememlosareflectivetelescoetocollimatelihtsourceandfocusabsorbedliht.Acombinedtransmittinndreceivypypgggainiberbundleissettothefocusofaconcavemirror.AXenonlamorksasthelihtsource.Thelihtiscouledintothegfpwggp

,,transmittiniberandthencollimatedbthereflectivetelescoesstem.Afterabsorbedbthepollutantsthelihtisreflectedgfypyyg,bramidmirrorfarawahetelescoe.Thentheabsorbedlihtisincidentontheconcavemirrorthesecondtimeandfoyapyytpgcusedonthefocalplaneaain.Thereceiviniberinducesthelihtwhichcarriestheinformationofthemeasuredgasintoaggfgsectrometer.WecangettheconcentrationofthepollutantsbOASalorithm.ExerimentalresultsshowthattheproosedpyDgppmethodcanbeadotedtomeasuresomepollutantsinairqualitonitorin.pymg

;;A犓犲狑狅狉犱狊ifferentialoticalabsortionsectroscoTransmitreceivefibersirqualitonitorin Dppppyymg狔

()ReceivedJan.12,2013;accetedAr.18,2013  pp

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