DocumentCode
3227738
Title
Metal-polymer multilayer absorber for ultrasonic transducers
Author
Toda, Minoru ; Thompson, Mitchell
Author_Institution
Meas. Specialties Inc., Hampton, VA, USA
fYear
2011
fDate
18-21 Oct. 2011
Firstpage
840
Lastpage
843
Abstract
Details of a metal-polymer multilayer absorber for ultrasonic transducers have been investigated. Multiple copper layers with pre-applied adhesive provided attenuation of 220dB/cm with an impedance of 4MRayl and a velocity of 890m/s at 3MHz. These results agreed with design theory and it was shown that the attenuation was high enough to be useful as a backing absorber ultrasonic transducers in the MHz range made with piezoelectric ceramic materials.
Keywords
conducting polymers; copper; multilayers; ultrasonic transducers; Cu; adhesive; frequency 3 MHz; impedance; metal-polymer multilayer absorber; piezoelectric ceramics; ultrasonic transducers; Acoustics; Attenuation; Copper; Impedance; Mathematical model; Nonhomogeneous media; backing absorber; desgn theory; metal-polymer; multilayer;
fLanguage
English
Publisher
ieee
Conference_Titel
Ultrasonics Symposium (IUS), 2011 IEEE International
Conference_Location
Orlando, FL
ISSN
1948-5719
Print_ISBN
978-1-4577-1253-1
Type
conf
DOI
10.1109/ULTSYM.2011.0205
Filename
6293289
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