Piezocomposite technology: an innovative approach to the improvement of N.D.T. performance using ultrasounds

The ever-increasing need for improved performance and adaptation to particular inspection conditions calls for the development of new ultrasound sensor technologies, such as Piezocomposite 1-3 technology. This technology makes use of piezoelectric elements in the form of composites made up of cerami...

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Bibliographic Details
Published in:E-journal of Nondestructive Testing 2002-05, Vol.7 (5), p.1-6
Main Authors: Poguet, J, Fleury, G, Guey, J L, Conche, P
Format: Article
Language:English
Online Access:Get full text
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Summary:The ever-increasing need for improved performance and adaptation to particular inspection conditions calls for the development of new ultrasound sensor technologies, such as Piezocomposite 1-3 technology. This technology makes use of piezoelectric elements in the form of composites made up of ceramic micro-rods embedded in a polymer matrix. This article will describe the structure of these piezocomposite materials and their most important electroacoustic and mechanical characteristics. A certain number of applications that can benefit from this technology will also be presented. These applications make use of a large number of different types of sensors in the 200 kHz to 20 MHz frequency range, in particular immersion sensors with high electroacoustic performance (sensitivity, signal / noise ratio, damping), focused sensors with very high lateral resolution, high temperature sensors, and multi-element or phased array sensors.
ISSN:1435-4934
1435-4934