Detection of corrosion fatigue in boiler tubes using a spike EMAT pulser
作者： Daniel T. Mac Lauchlan , Paul J. Latimer
DOI:
关键词: Materials science 、 Acoustics 、 Electromagnetic acoustic transducer 、 Electromagnetic coil 、 Amplitude 、 Corrosion fatigue 、 Boiler (power generation) 、 Reflected waves 、 Structural engineering 、 Boiler tube
摘要: A method of detecting damage in a ferromagnetic workpiece such as boiler tube positions pair EMAT coils adjacent to the at non-zero angle with respect one another. spike pulse is applied for generating horizontally polarized shear wave which capable being reflected by flaw, and amplitude from any flaw received other coil analyzed compared predetermined percent an calibration standard establish presence flaw.
lens.org 参考文章(7)
Robert B. Thompson, Christopher M. Fortunko, Ultrasonic inspection of a cylindrical object ,(1978)
Gerhard Hubschen, Wilhelm Repplinger, Hans-Jurgen J. Salzburger, Non-destructive, non-contact ultrasonic material ,(1982)
Paul J. Latimer, Daniel Thomas Maclauchlan, Detection of Corrosion Fatigue Cracks in Membrane Boiler Tubes ,(1994)
Robert B. Thompson, Ultrasonic shear wave transducer ,(1979)
George A. Alers, Robert B. Thompson, Carmine F. Vasile, Nondestructive testing utilizing horizontally polarized shear waves ,(1979)
Jonathan David Buttram, Wayne Meredith Latham, Emat measurement of ductile cast iron nodularity ,(1995)
William Bert Spillman, Distributed structural characteristic detection system using a unidirectional acoustic waveguide Journal of the Acoustical Society of America. ,vol. 103, pp. 1698- ,(1995) , 10.1121/1.423114