bullet Sensors & Transducers Journal

    (ISSN 1726- 5479)


2008 e-Impact Factor

25 Top Downloaded Articles

Journal Subscription 2011

Editorial Calendar 2011

Submit an Article

Editorial Board

Current Issue

Special Issue of S&T, February 2011

Sensors & Transducers Journal 2010

Sensors & Transducers Journal 2009

Sensors & Transducers Journal 2008

Sensors & Transducers Journal 2007

2000-2002 S&T e-Digest Contents

2003 S&T e-Digest Contents

2004 S&T e-Digest Contents

2005 S&T e-Digest Contents

2006 S&T e-Digest Contents


Best Articles 2009




Vol. 10, Special Issue, February 2011, pp.13-29



Intelligent Sensor for Non-destructive Tests Applications



National Institute of Research and Development for Optoelectronics,

INOE-2000, 409 Atomistilor Street, P.O. Box MG 5, 77125, Romania

Tel./fax: 4021.4574522, e-mail: qilib@yahoo.com



Received: 1 November 2010   /Accepted: 11 January 2011   /Published: 8 February 2011


Abstract: This paper presents theoretical and experimental research concerning the manufacture of an intelligent piezoceramic sensor for non-destructive tests (NDT) applications in non-metallic materials. The impact-echo method is suitable for determination of flaw in the material structure, based on stress wave propagation. This method could be applied for non-metallic materials with rugged and non-homogeneous structures. The active element of the intelligent piezoceramic sensor for NDT applications is a piezoceramic disc which converts the vibrations into electrical signal, amplified by an amplifier electronic circuit. The radial resonant frequency of the piezoceramic disc is 40.5 kHz, optimum for the ultrasound and low frequency sound vibration propagation into non-metallic materials. The intelligent sensor with piezoceramic disc is composed by: PZT piezoceramic disc, mechanical elements, acoustic attenuation element and amplifier electronic circuit, all together fixed into a cylindrical aluminium case. The advantage of this sensor is the possibility to be controlled by microcontroller.


Keywords: NDT, Impact-echo method, PZT, Piezoceramic disc, Ultrasound


Acrobat reader logo Click <here> or title of paper to download the full pages article (1.24 Mb)






1999 - 2011 Copyright , International Frequency Sensor Association (IFSA). All Rights Reserved.

Home - News - Links - Archives - Tools - Standardization - Patents - Marketplace - Projects - Wish List - Subscribe - Search - Membership - Submit Press Release - Twitter

 Members Area -Sensors Portal -Training Courses - S&T Digest - For advertisers - Bookstore - Forums - Polls - Sensor Jobs - e-Shop - Site Map - Video