Title :
Theory of curved clamped PVDF acoustic transducers
Author_Institution :
Measurement Specialities Inc., Norristown, PA
Abstract :
Differential equations in the cylindrical coordinate system have been solved to calculate vibration mode of a curved, clamped, piezoelectric multi-layer film. Type-I has two clamps at straight ends with uniform film curvature and type II has the same two clamps with non-uniform curvature in which the radii are different for the central region and for side regions near clamps. Results of numerical calculations on various unique features of acoustic transducers were presented
Keywords :
acoustic transducers; piezoelectric materials; piezoelectric thin films; polymer films; vibrational modes; curved clamped PVDF acoustic transducers; curved clamped piezoelectric multi-layer film; cylindrical coordinate system; differential equations; nonuniform curvature; vibration mode; Acoustic transducers; Clamps; Frequency; Microphones; Partial differential equations; Piezoelectric films; Piezoelectric transducers; Polymer films; Resonance; Ultrasonic imaging;
Conference_Titel :
Ultrasonics Symposium, 1999. Proceedings. 1999 IEEE
Conference_Location :
Caesars Tahoe, NV
Print_ISBN :
0-7803-5722-1
DOI :
10.1109/ULTSYM.1999.849180
