Flaw classification by a spectral division of ultrasonic echoes
Tài liệu tham khảo
Klein, 1979, Ultraschallspektroskopische Untersuchungen zur Unterscheidung zwischen Rissen und Poren
Vopilkin, 1978, Experimental investigation of an ultrasonic spectral method of determining the nature of defects, Soviet J NDT, 14, 34
Fitting, 1981, Ultrasonic spectral analysis for nondestructive evaluation, 10.1007/978-1-4613-3126-1
Adler, 1977, Ultrasonic frequency analysis, 1