The Characterisation of Piezoelectric and Electrostrictive Materials for Underwater Acoustic Transducers

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Authors
  1. Mukherjee, B.K.
  2. Sherrit, S.
  3. Yang, G.
Corporate Authors
Royal Military Coll of Canada, Kingston ONT (CAN) Dept of Physics;Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
Underwater acoustic transducers are used extensively in Anti-Submarine Warfare and Mines Countermeasures. The majority of these transducers are based on the use of piezoelectric and electrostrictive materials as the active material in the transducer. These materials are also important for th eactive methods of sound absorption that are being considered for underwater stealth. Since the materials are non-linear and lossy, the design of the various devices requires a good and precise knowledge of the dielectric, elastic and piezoelectric/electrostrictive properties of the materials under the actual conditions of the particular application (e.g. high power, pre-stress, etc.,). The importance of such a precise knowledge of the properties has increased with the development of software, such as PZFlex, which can model piezoelectric materials/transducers and their vibrations very accurately if precise material parameters are provided. TRUNCATED
Report Number
DREA-SR-1999-162-PAP-36 — CONTAINED IN CA000150
Date of publication
01 Oct 1999
Number of Pages
20
DSTKIM No
CA000186
CANDIS No
511910
Format(s):
Hardcopy;Document Image stored on Optical Disk

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