超声波相控阵技术原理及特点

:20080221:(1977-),,,超声波相控阵技术原理及特点TheoryandFeaturesofUltrasonicPhasedArrayTechnology刘长福,张彦新,李中伟,陈二松,张广兴(河北省电力研究院,石家庄050021):介绍超声波相控阵技术的原理,分析该技术的独特优势,即:对工件的检测更具针对性,可以明显提高缺陷检出率及检测速度同时展望了该技术在无损检测领域广阔的应用前景:超声波相控阵;聚焦声束;成像;电子扫查Abstract:Thispaperintroducesthetheoryofultrasonicphasedarrayinspectiontechnology,andanalyzethesuper-iorites,suchasthepertinenceofinspectionforthework-piece,andthedisfigurementcheckoutrateandspeedad-vance,atthesametime,describesaprospectofthewideap-plicationforegroundofthistechnologyinNDT.Keywords:ultrasonicphasedarray;focusedbeams;ima-ging;electroniclinearscan:TG441:A:10019898(2008)030029031,,,2:,,,,2060,;6070,,,,;,,,2,,,,,,,1(a),,,256[1],,,,,1(b)1(c),,,,,[2]#29#Vol.27No.3河北电力技术273Jun.2008HEBEIELECTRICPOWER200861(,/PRF0)PRF,,,,,22(),,,,,3,,3(a)(b)(c)33,,3a.,(focallaw),,,,,,,b.,,,,,;,,,,,c.,,,4,,#30#Vol.27No.3河北电力技术273Jun.2008HEBEIELECTRICPOWER200861mm43,A,A,,A,,ABCD,/0,,,,,,ABC,420mm,64,43,11)16,45b~70b,50mm,;240)55,45b~70b,50mm,;364,60b,50mm,3,,355,1,,2,,,5,,,:[1],.[J].,2002,(2):6971.[2]WustenbergH,ErhardA,SchenkG.Somecharacteristicpa-rametersofultrasonicphasedarrayprobesandequipments[J/OL].:戈文江下期要目改性季氨盐杀菌性能评价火力发电厂锅炉外部定期检验探讨多元统计方法在焊工评价体系表中的应用#31#Vol.27No.3河北电力技术273Jun.2008HEBEIELECTRICPOWER20086