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there is .no avai1able measurement technique for transient sin:mltaneous tempera旬 re and concentrationdistributions.Thispaperap1iedthenewtechnique.l) ofcombininginfraredray absorptionmethodwithrealtimeholographicj.nterferometrytomicroclimatewithinandwithout cloth.，anddiscuseditsusefulnesbyevaluatingpasingcharacteristicofheatandvaporthrough clothfromtheobtainedresults.
2EXPE~MENTALAPPARATUSANDPROCEDURÆ
This measurement technique is characterized by combining in企ared ray (which is hereafter abreviatedtoIR)absorptionmethodwithrealtimeholographicinterferometry (whichishereafter abreviatedtoIl).Theprinciples2)ofthismeasurementtechniquedependontheatenuationof radiationintensityofIRduetothe，vaporabsorptionandthevariationofrefractiveindexofphase objectduetothechangesoftempera旬 reandconcentration.IR.ahsorptionD;lethodgivesthe concentration value at any local point from Lambert-Be er's law. The tempera旬 re value is calculated bysubstitutingthisconcentrationonefortheLorenz-Lorenzequation.
Theopticalsetupusedinthispapぽ isshowninFigユWesettheisothermalyheatedblack- paintedcoperplateat80degreCelsius'toemitIR.TheradiationintensitywasmeasuredwithIR camerahavingtheresolutionof12bi.tTheabsorptioncoeficientwasdeterminedbyvolumepercent ofthesaturatedvaporat1iquidtemperatureandthetempera印 resratiomeasuredwithIRcameraof thecasewithoutliquidtothatwithone.He-Negaslaserhaving30mW wasusedforthelightsource ofIl.Thetestsectionisshownin.Fig.3.Thetestsectionhasathre-storiedstructure.Bottomisthe parttokep1iquidtemperatureconstantbycirculatingbrine企omtheconstanttemperaturebath. Middlepartistheliquidcontainerhaving60mmofwidth，160mmoflengthand5mmofdepth. Upperpartisthemeasuringregion.Shuterwasmounted企om1mmupward企omliquidsurfacein theverticaldirection.，Methanolwasusedforspontaneouslyevaporatingliquid. Liquidtemperature wassetatabout40degreCelsius.Themainpurposeofthispaperistoveri今 thistechnique's usefulnesformicroclimatewithinclothing.Therefore，weusedtheporousfilmofthatspecification isclearratherthanthec10thsuchasco社onandnylonetcthatiseasytodeformundertheloadof muchtensioninthispaper.Thespecificationofporousfilmsusedinthispaperisshownintable1.
Copperplate
IRcamera Fig.2Opticalse加 p
h在:Miπor L:Lens S:Spatialfilter
2
