Paper Title:
An Active Piezo Array Sensor for Elastic Wave Detection
  Abstract

This paper describes an array sensor of piezoceramic PZT discs with flexible covering layers, which is designed to detect surface elastic waves in structures, such as Rayleigh waves. The sensor is distinguished from conventional “passive” sensors for elastic waves detection because it possesses an ability to actuate an “active” pulse. This indicates that the function of active pulse generation ensures the diagnosis of the structures, where the sensor attached or embedded into, can be accomplished in a smart way including an easy inspection of faults. Actually the sensor has been inspired from human sensory systems in order to apply for smart structure sensing. They utilized 6mm diameter and 0.25mm thick PZT discs for the active array sensor. The performance of the sensor was demonstrated at various experiments of some metal and composite structures that the sensor can be applied for the health monitoring of the advanced smart structure system.

  Info
Periodical
Key Engineering Materials (Volumes 297-300)
Edited by
Young-Jin Kim, Dong-Ho Bae and Yun-Jae Kim
Pages
2004-2009
DOI
10.4028/www.scientific.net/KEM.297-300.2004
Citation
Y. S. Lee, D. J. Yoon, S. I. Lee, J. Kwon, "An Active Piezo Array Sensor for Elastic Wave Detection ", Key Engineering Materials, Vols. 297-300, pp. 2004-2009, 2005
Online since
November 2005
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Jong Woong Kim, Sun Kyu Park, Seung Boo Jung
Abstract:Ball shear test was investigated in terms of effects of important test parameters, i.e. shear height and shear speed, with an experimental...
851
Authors: Jian Ping Xing, Juan Li, Lei Zhou, Jian Ming Li, Nan Yuan Qiu
Abstract:The characters of metal oxide gas sensing nano-thin films are studied. The formula of the dynamical thickness effect characteristic time is...
1341
Authors: Xiao Ning Zhang, Qing Wang
Abstract:This paper presents a simulation method on shielding effectiveness(SE). The method is completely general and able to optimize shielding...
1613
Authors: Zhen Yin, Hua Li, Bang Fu Wang, Ke Feng Song
Innovative Design Methodology
Abstract:Based on FEM, a new type of ultrasonic elliptic vibrator design method was proposed, the ultrasonic elliptic vibration was achieved by the...
341
Authors: Xin Chun Guan, Hui Li, Hui Gang Xiao, Guo Fu Qiao, Jin Ping Ou
Chapter 1: Smart Materials, Sensors, Actuators, MEMS
Abstract:In this paper, some smart sensors or material used to make the smart sensors, such as piezoresistance composite, piezoelectric polymer,...
9