Abstract
High frequency ultrasonic transducers were fabricated using lead indium niobate-lead magnesium niobate-lead titanate (0.24PIN-0.44PMN-0.32PT) as the active piezoelectric material. The measured center frequency and bandwidth of the device were 35 MHz and 48 % respectively. The electrical impedance magnitude was 71 Omega and phase was - 38deg. Insertion loss was measured to be 15 dB. A phantom which consists of 20-mum tungsten wires was imaged to assess spatial resolution of the transducer.
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