换热器内管壁厚超声测定系统

(,150001)HY2188,ANULTRASONICTHICKNESSMEASURINGSYSTEMFORHEAT-EXCHANGERPIPESTianHaoYuShisheng(HaperbinInstituteofTechnology)AbstractHY2188ultrasonicthicknessmeasuringsystemforheat2exchangerpipesdevelopedcanbeusedforstatisticallyevaluatingthewallthicknessreductionofaheat2exchangerpipecausedbyerosion.Thesoftware,hardwareandmeasuringmethodofthesystemareintroduced.Andsomemeasuringresultsaregiven.KeywordsHeat2exchangerPipeUltrasonicthicknessgaugeSpectralanalysis,,,,612m1925mm,,,,HY2188,,1(1),122.1,,,,,245,10MHz,,15m;;1452212200012NDTVol.22No.12Dec.2000©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.2,45,,45,2.2,15m(3)32.3,(3)2.4CTS223,,AöD,,080dB2.5PC,8bit,50MHz,2.6,AöD,2.7,AT,(FFT),1024FFT0.5msö2.8486CXö33,23cm(9in)VGA,,AöDFFT3,[1],,,,,[2,3],,,,[4]4BorlandC++,,,,FFT,:(1),(2)(a),,(b)245:©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,,,,(c),,(3),(4),1.03.0mm,0.2mm(5)5HY2188(1,2),(3,4)14ömm10.80.8mm:100%22.01.8mm:30%2.0mm:70%31.0,0.8mm:19%1.0mm:81%42.04m,1.8mm:7%2.0mm:62.3%2.2mm:30.7%5.113,,,1,,0.70.9mm(0.2mm,0.8mm100%);2,,,2.0mm,1.8mm30%,,,0.1mm5.21(4),,,0.8mm40.8mm5.31,2,,,3,44m,,2.0mm,2.1mm(0.1mm),4mömin,,,6HY2188,345:©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.20019,703,:::::A4,,,200:2001331:2001431:2001631:92007316:100076:[phone]:[phone]:[e-mail]:http:ööwjian.top263.net()(1),(2),,(3),0.8mm,(4),(5),,(6),,,,HY2188,,,1,..:,1991.223-2252ParadisL,SerruysY,SaglioR.Ultrasonicsignalpro2cessingforthicknessmeasurementsanddetectionofnear2surfacedefects.MaterialsEvaluation,1986,44(10):1344-13493KinraVK,IyerVR.Ultrasonicmeasurementofthethickness,phasevelocity,densityorattenuationofathin2viscoelasticplate,PartÉ:theforwardproblem.Ultrasonics,1995,33(2):95-1094,.,1997,16(6):21-25:19982032294452212200012NDTVol.22No.12Dec.2000©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.