PolyU Institutional Repository >
Applied Physics >
AP Conference Papers & Presentations >
Please use this identifier to cite or link to this item:
|Title: ||PT/P(VDF-TrFE) hydrophone array|
|Authors: ||Lau, Sien Ting|
Chan, Helen L. W.
|Issue Date: ||2001 |
|Citation: ||2001 IEEE Hong Kong Electron Devices Meeting : proceedings : 30 June, 2001, The Hong Kong Polytechnic University, p. 71-74.|
|Abstract: ||0-3 composite thin films of lead titanate (PT) in poly(vinylidene fluoride-trifluoroethylene) (PT/P(VDF-TrFE)) have been prepared by the spin-coating method.
The piezoelectric coefficients of PT and P(VDF-TrFE) have opposite signs, while their pyroelectric coefficients have the same sign. The two phases of the composite film
are then poled in opposite directions to prepare a piezoelectric film with vanishing pyroelectric response. An 8-element hydrophone array with this composite film
as the sensing elements have been fabricated and characterized. The array has good receiving sensitivity over several MHz. The angular responses of the array
elements are measured and the results are compared to a theoretical model. The acoustical and electrical crosscoupling
between the array elements are also discussed.|
|Rights: ||© 2001 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.|
This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.
|Type: ||Conference Paper|
|Appears in Collections:||MRC Conference Papers & Presentations|
AP Conference Papers & Presentations
All items in the PolyU Institutional Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
No item in the PolyU IR may be reproduced for commercial or resale purposes.