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Narrowband impedance matching layer for high efficiency thickness mode ultrasonic transducers

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1 Author(s)
Toda, M. ; Meas. Specialty Inc., Norristown, PA, USA

A new matching layer design concept has been proposed for narrow band continuous wave (CW) devices. The structure is different from well-known wideband design, A high power transducer structure was designed and fabricated with PVDF-TrFE to operate at 1.4 MHz. A maximum power output of 6-9 W/cm2 with conversion efficiency of 30-35% was observed

Published in:

Ultrasonics Symposium, 2001 IEEE  (Volume:2 )

Date of Conference:

2001