Jpn. J. Appl. Phys. 51 (2012) 07GB05 (2 pages) |Previous Article| |Next Article| |Table of Contents|
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Brief Note
Imaging of Acoustic Waves in Piezoelectric Ceramics by Coulomb Coupling
Anowarul Habib,
Amit Shelke1,
Mieczyslaw Pluta2,
Tribikram Kundu1,
Ullrich Pietsch, and
Wolfgang Grill2
Department of Solid State Physics, University of Siegen, ENC, D-57072 Siegen, Germany
1Department of Civil Engineering, University of Arizona, Tucson, AZ 85721, U.S.A.
2Institute of Experimental Physics II, University of Leipzig, Linnéstr. 5, D-04103 Leipzig, Germany
(Received November 19, 2011; accepted January 30, 2012; published online July 20, 2012)
The transport properties of bulk and guided acoustic waves travelling in a lead zirconate titanate (PZT) disc, originally manufactured to serve as ultrasonic transducer, have been monitored by scanned Coulomb coupling. The images are recorded by excitation and detection of ultrasound with local electric field probes via piezoelectric coupling. A narrow pulse has been used for excitation. Broadband coupling is achieved since neither mechanical nor electrical resonances are involved. The velocities of the traveling acoustic waves determined from the images are compared with characteristic velocities calculated from material properties listed by the manufacturer of the PZT plate.
URL:
http://jjap.jsap.jp/link?JJAP/51/07GB05/
DOI: 10.1143/JJAP.51.07GB05
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