A型脉冲反射式超声波探伤仪的正确使用

MEASUREMENTEQUIPMENTANDAPPLICATION40IndustrialMeasurement2008Vol18No5A,(,210007)[],TUD201,A,,[];;[]TH878[]B[]1002-1183(2008)05-0040-03[]2008-05-02[](1986-),,,,A,,,TUD201,111TUD201A12[1],,,,,,[2],,,,,,,,,,221,,22:(1),0s;(2);(3);(4),(5),,;(6)A,,,A,A;(7)B,,,B,B;(8),,;(9),,MEASUREMENTEQUIPMENTANDAPPLICATION200818541;(10),1,5920m/s493mm,,,150mm(100mm),,70dB,400,4687m/s,044s,,3%1,1232122,,,,,A,,,2260mm,,,70mm,,,54dB,,227mm,,227mm,331,,:(1),,,,(2)(3),,,;,,(4),,,32,(),,,,,,33(1),50150400,,,,,MEASUREMENTEQUIPMENTANDAPPLICATION42IndustrialMeasurement2008Vol18No5,,,,,,,,,,,,,[2],,(2),:(02~1MHz)(06~4MHz)(2~10MHz),,,25MHz20,34(1),:,,,,[2],,(2),A,A,,,BCALOK4,,A,,[][1][M]:,2004[2],[M]:,1993[:]