Title :
PIN-PMN-PT single crystal high frequency ultrasound transducers for medical applications
Author :
Zhou, Q.F. ; Zhu, B.P. ; Wu, D.W. ; Hu, C.H. ; Cannata, J.M. ; Tian, J. ; Han, P.D. ; Shung, K.K.
Author_Institution :
Dept. of Biomed. Eng., Univ. of Southern California, Los Angeles, CA
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.
Keywords :
biomedical ultrasonics; phantoms; piezoelectric transducers; ultrasonic transducers; PIN-PMN-PT single crystal high frequency ultrasound transducer; electrical impedance magnitude; insertion loss; lead indium niobate-lead magnesium niobate-lead titanate; medical application; phantom; piezoelectric material; spatial resolution; Biomedical equipment; Biomedical transducers; Frequency; Indium; Magnesium; Medical services; Piezoelectric transducers; Ultrasonic imaging; Ultrasonic transducers; Ultrasonic variables measurement;
Conference_Titel :
Ultrasonics Symposium, 2008. IUS 2008. IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2428-3
Electronic_ISBN :
978-1-4244-2480-1
DOI :
10.1109/ULTSYM.2008.0348
