Lau, S.T., Lam, K.H., Chan, H.L.W., Choy, C.L., Luo, H.S., Yin, Q.R. and Yin, Z.W. (2005) Piezoelectric PMN-PT fibre hydrophone for ultrasonic transducer calibration. Applied Physics A: Materials Science and Processing, 80(1), pp. 105-110. (doi: 10.1007/s00339-004-2908-3)
Full text not currently available from Enlighten.
Abstract
A newly developed ceramic fibre hydrophone with an active element as small as 0.25 mm in diameter is described in this work. Lead magnesium niobate-lead titanate (PMN-PT) ceramic fibre with a nominal composition of 0.65Pb(Mg1/3Nb2/3)O3-0.35PbTiO3 was fabricated by an extrusion method. PMN-PT single crystals were ground to a powder form and then mixed with poly(acrylic) acid to form a homogenous slurry. The fibre was extruded by pressing the slurry through a spinneret and then sintering at 1250 °C for crystallization. The electrical characteristics of the PMN-PT fibre were evaluated by measuring the relative permittivity and the impedance spectrum. A piezoelectric PMN-PT fibre hydrophone was fabricated and its sensitivity, angular response, and spatial resolution were evaluated. The fibre hydrophone provides good spatial resolution, angular response and receiving sensitivity.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | UNSPECIFIED |
| Authors: | Lau, S.T., Lam, K.H., Chan, H.L.W., Choy, C.L., Luo, H.S., Yin, Q.R., and Yin, Z.W. |
| College/School: | College of Science and Engineering > School of Engineering > Systems Power and Energy |
| Journal Name: | Applied Physics A: Materials Science and Processing |
| Publisher: | Springer |
| ISSN: | 0947-8396 |
| ISSN (Online): | 1432-0630 |
University Staff: Request a correction | Enlighten Editors: Update this record
Deposit and Record Details
Deposit and Record Details