Title :
A comb transducer for mode control in guided wave NDE
Author :
Rose, J.L. ; Pelts, S.P. ; Quarry, M.J.
Author_Institution :
Dept. of Eng. Sci. & Mech., Pennsylvania State Univ., University Park, PA, USA
Abstract :
Investigations of the characteristics of an ultrasonic comb transducer have been performed for a range of transducer parameters. A numerical model, providing a time domain wave propagation solution for the field generated by a transducer on an elastic plate, is presented. The ability of mode selection and isolation is demonstrated, which is of practical significance in NDE
Keywords :
modelling; ultrasonic materials testing; ultrasonic propagation; ultrasonic transducers; US comb transducer; elastic plate; guided wave NDE; mode control; mode isolation; mode selection; nondestructive evaluation; numerical model; time domain wave propagation solution; transducer parameters; ultrasonic comb transducer; Bandwidth; Boundary conditions; Design optimization; Equations; Fourier transforms; Frequency domain analysis; Geometry; Numerical models; Pulse generation; Ultrasonic transducers;
Conference_Titel :
Ultrasonics Symposium, 1997. Proceedings., 1997 IEEE
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-4153-8
DOI :
10.1109/ULTSYM.1997.661757
