The excitation of Lamb waves in pipes using dry-coupled piezoelectric transducers[J] . D. N. Alleyne,P. Cawley.  Journal of Nondestructive Evaluation . 1996 (1)
The excitation of Lamb waves in pipes using dry-coupled piezoelectric transducers[J] . D. N. Alleyne,P. Cawley.  Journal of Nondestructive Evaluation . 1996 (1)