Novel integrated impedance matching layer

High performance clinical and industrial ultrasonic transducers require an impedance matching layer with controlled acoustic properties for efficient coupling of acoustic energy between the piezoelectric layer and the propagating medium. The principles of operation, design requirements and performance of a novel integrated impedance matching layer are discussed here. This integrated impedance matching layer is a composite of inert lead zirconate titanate (PZT) ceramic and conformal polymer filler material.<
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