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pro vyhledávání: '"M G Silk"'
Autor:
M. G. Silk
Publikováno v:
International Metals Reviews. 27:28-50
The factors which influence the ability of ultrasonic techniques to detect and size defects in metals are considered. To do this the theory of the interaction between defects and elastic waves must be introduced but this is presented in a largely des
Publikováno v:
Journal of Physics E: Scientific Instruments. 14:1313-1319
For most purposes the requirements for an ideal ultrasonic probe are high efficiency, compact pulse shape and reproducibility in construction. For many practical applications the requirements of high efficiency (giving good signal-to-noise ratio) are
Autor:
M. G. Silk
Publikováno v:
Metal Science. 15:559-565
For many years it seemed both convenient and accurate to ignore metallurgical texture in carrying out practical non-destructive testing. That this was a false simplification was shown up dramatically in recent studies of the austenitic weld. Large va
Autor:
M G Silk
Publikováno v:
Journal of Physics E: Scientific Instruments. 16:879-887
The linear model of the ultrasonic transducer has been extended to allow for the effects of diffraction, poor bonding and the various shapes of calibration reflectors. In this way the predictions of the model are brought closer into line with the pra