Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/24261
Title: High-frequency PIN-PMN-PT single crystal ultrasonic transducer for imaging applications
Authors: Chen, Y
Lam, KH
Zhou, D
Cheng, WF
Dai, JY 
Luo, HS
Chan, HLW 
Issue Date: 2012
Publisher: Springer
Source: Applied physics. A, Materials science & processing, 2012, v. 108, no. 4, p. 987-991 How to cite?
Journal: Applied physics. A, Materials science & processing 
Abstract: A high-frequency (∼60 MHz) ultrasonic transducer with a [001]-oriented 0.27Pb(In 1/2Nb 1/2)O 3-0.45Pb(Mg 1/3Nb 2/3)O 3-0.28PbTiO 3 (PIN-PMN-PT) piezoelectric single crystal as an active element has been fabricated and characterized. The poled PIN-PMN-PT single crystal has thickness mode electromechanical coefficient k t of 0.56 and piezoelectric constant d 33 of 1550 pC/N. The -6 dB bandwidth of the transducer is 73 % and the insertion loss at its centre frequency is -20 dB. With the study as a function of temperature, the PIN-PMN-PT transducer shows better thermal stability than the binary single crystal transducer. Furthermore, the transducer was evaluated using a 30-μm aluminum wire phantom image, in which the -6 dB axial and lateral resolutions are found to be 26 μm and 127 μm, respectively. Ultrasonic images of fish eyes were obtained with the 60-MHz transducer. It is shown that the high-sensitivity transducer can produce the images with high signal-to-noise ratio and good contrast.
URI: http://hdl.handle.net/10397/24261
ISSN: 0947-8396
EISSN: 1432-0630
DOI: 10.1007/s00339-012-7009-0
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