Title :
Characteristics of wide-band planar ultrasonic transducers using plane and edge wave contributions
Author :
Kramer, S.M. ; McBride, Stuart L. ; Mair, H. Doug ; Hutchins, David A.
Author_Institution :
Ont. Hydro Res. Div., Toronto, Ont., Canada
fDate :
3/1/1988 12:00:00 AM
Abstract :
The transient pressure fields of ideal planar ultrasonic transducers may be described in terms of plane and edge wave contributions. Based on this concept, a technique is developed which allows characterization of wideband unfocused transducers by a single measurement close to the transducer face. This method is examined experimentally for both polyvinylidene difluoride and commercial PZT transducers. Also investigated is the effective radiated frequency of these devices.<>
Keywords :
ultrasonic transducers; PVDF; PZT; edge wave; plane wave; wide-band planar ultrasonic transducers; Acoustic pulses; Acoustic transducers; Biomedical transducers; Frequency; Physics; Piezoelectric transducers; Pistons; Shape; Ultra wideband technology; Ultrasonic transducers;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
