Title :
Applications for measurements of shear-wave resonant modes in cylinders
Author :
Alers, George A. ; Johnson, Ward ; Segal, E. ; Auld, B.A.
fDate :
Oct. 31 1994-Nov. 3 1994
Abstract :
An electromagnetic-acoustic transducer (EMAT) of novel design is used to excite and detect only those resonant modes of a cylinder that have a specific, integral number of nodes on the circumference. Because the nodal pattern is fixed and the coupling between the cylinder and transducer is weak, the resonances have very well defined frequencies which allow applications that include measurements of accurate shear wave velocities in commercial alloys, case depth in hardened steel shafts and axial stress in solid cylinders
Keywords :
acoustoelectric transducers; damping; elastic constants; elastic moduli measurement; elastic waves; accurate shear wave velocities; axial stress; case depth; cylinders; electromagnetic-acoustic transducer; integral number; nodal pattern; shafts; shear-wave resonant modes; Acoustic detectors; Acoustoelectric transducers; Cylinders; Mechanical factors;
Conference_Titel :
Ultrasonics Symposium, 1994. Proceedings., 1994 IEEE
Conference_Location :
Cannes, France
Print_ISBN :
0-7803-2012-3
DOI :
10.1109/ULTSYM.1994.401782
