Title :
Finite element analysis on impedance matching layer thickness
Author :
Draheim, Mark R. ; Cao, Wenwu
Author_Institution :
Mater. Res. Lab., Pennsylvania State Univ., University Park, PA, USA
Abstract :
A 0-3 alumina-HYSOL epoxy composite was made with the volume fraction of alumina varied from 0 to 40% and the physical properties were measured. These properties were used as input values for the matching layer properties in a finite element model of a 5 MHz PZT-5H transducer. The thickness of the matching layer was varied and corresponding transmitted power into the water was calculated and compared to that of the quarter wave length thickness matching. The optimum matching layer thickness for this model was found to be 11% less than λ/4
Keywords :
acoustic impedance; acoustic transducers; finite element analysis; piezoelectric transducers; ultrasonic transducers; 0-3 alumina-HYSOL epoxy composite; 5 MHz; Al2O3; PZT; PZT-5H transducer; PbZrO3TiO3; finite element model; impedance matching layer thickness; Acoustic measurements; Acoustic propagation; Acoustic transducers; Composite materials; Finite element methods; Impedance matching; Material properties; Pulse measurements; Ultrasonic transducers; Volume measurement;
Conference_Titel :
Applications of Ferroelectrics, 1996. ISAF '96., Proceedings of the Tenth IEEE International Symposium on
Conference_Location :
East Brunswick, NJ
Print_ISBN :
0-7803-3355-1
DOI :
10.1109/ISAF.1996.598201
