中厚板超声波探伤探头的研制

(),,DevelopmentofUltrasonicFlawDetectingProbeforMediumandHeavyPlateZhangNa,TengYongpingandWuJunfang(BeijingJiaotongUniversity)AbstractInthispaper,twomethodsofmakingultrasonicflawdetectingprobefordetectingmediumandheavyplatearedescribedandexperimentalstudyismadeofitssoundfieldcharacteristics,Testresultsshowthattheprobesadoptingthesetwotypesofstructurescanincreasethemaximumdetectingrange,applicabletoultrasonicdetectionofmediumandheavyplate,bothautomaticallyandmanuallyKeywordsUltrasonicdetection,Mediumandheavyplate,Probe1(GBöT2970-91)(JB4730-94):1,,6,,,,TR,,22.1:,,,,,2.212,3D=L-LtgAtgsin-1c3c1sinA(1):A2211120052WIDEANDHEAVYPLATEVol.11.No.1February2005;L;L;c1c3140mm,(1),1A,B1ömmA2.53011.3B5307,5MHz(PZT),,,,,,,,2.33mm80mm,20,2PCSUSC8804,:,2,80%,0dB,,dB,,dB,522.4AB3434,A2.010.3mm,B7.956.0mm,,,,321:AB,,256.0mm,A,B,3A4B,,,,3TR3.1TRTR:,55,,1,2,,,,,5TR3.2TR80mmTR,(1),22ömm15301.6253021,TR5MHz(PZT),,,,TR,,,3.3TR4211TR,,676TR17TR267,129.6mm,216.680mm,,88TR8,,280mm,,,,2,8,1,,,,:,,,,,86dB,44.1,,4.2,,4.3TR,,4.4,,1,,.J.,2001,23(10):4394402.M.:,19823J,H,.M.:,19844,..ö,0115,20035.J.,2003,27(3),,,:20041110521: