Novel spring-mass matching layer fabrication

Spring-mass matching layers consisting of a thin polymer layer ("massless spring") covered by a metal layer ("incompressible mass") can be designed to achieve any desired acoustic impedance and act as an equivalent λ/4 matching layer. In this paper, we present a fabrication proce...

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Bibliographic Details
Published in2015 IEEE International Ultrasonics Symposium (IUS) pp. 1 - 4
Main Authors Gorostiaga, M., Wapler, M. C., Wallrabe, U.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2015
Subjects
Acoustics
commercial foils
Fabrication
Impedance
matching layer
Metals
PDMS
Polymers
spin-coating
spring-mass
Springs
Transducers
UV laser
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Summary:Spring-mass matching layers consisting of a thin polymer layer ("massless spring") covered by a metal layer ("incompressible mass") can be designed to achieve any desired acoustic impedance and act as an equivalent λ/4 matching layer. In this paper, we present a fabrication process of these matching-layers based on spin-coated PDMS as spring layer and stainless steel commercial foils as mass layer.
DOI:10.1109/ULTSYM.2015.0366