Next Article in Journal
Spatial and Temporal Analysis on the Distribution of Active Radio-Frequency Identification (RFID) Tracking Accuracy with the Kriging Method
Next Article in Special Issue
A Novel Wireless and Temperature-Compensated SAW Vibration Sensor
Previous Article in Journal
Design and Application of Quadrature Compensation Patterns in Bulk Silicon Micro-Gyroscopes
Article Menu

Export Article

Open AccessArticle
Sensors 2014, 14(11), 20439-20450; doi:10.3390/s141120439

An Efficient Algorithm Embedded in an Ultrasonic Visualization Technique for Damage Inspection Using the AE Sensor Excitation Method

1
College of Aerospace Engineering, Chongqing University, Chongqing 400044, China
2
Department of Mechanical Engineering, Chiba University, Chiba 263-8522, Japan
3
JAL Engineering Co. Ltd., Haneda Airport Ota, Tokyo 144-0041, Japan
4
Japan Aerospace Exploration Agency, Osawa Mitaka, Tokyo 181-0015, Japan
*
Author to whom correspondence should be addressed.
Received: 5 September 2014 / Revised: 17 October 2014 / Accepted: 23 October 2014 / Published: 29 October 2014
(This article belongs to the Special Issue Acoustic Waveguide Sensors)
View Full-Text   |   Download PDF [4701 KB, uploaded 29 October 2014]   |  

Abstract

To improve the reliability of a Lamb wave visualization technique and to obtain more information about structural damages (e.g., size and shape), we put forward a new signal processing algorithm to identify damage more clearly in an inspection region. Since the kinetic energy of material particles in a damaged area would suddenly change when ultrasonic waves encounter the damage, the new algorithm embedded in the wave visualization technique is aimed at monitoring the kinetic energy variations of all points in an inspection region to construct a damage diagnostic image. To validate the new algorithm, three kinds of surface damages on the center of aluminum plates, including two non-penetrative slits with different depths and a circular dent, were experimentally inspected. From the experimental results, it can be found that the new algorithm can remarkably enhance the quality of the diagnostic image, especially for some minor defects. View Full-Text
Keywords: visualization technique; Lamb waves; kinetic energy; diagnostic image visualization technique; Lamb waves; kinetic energy; diagnostic image
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Liu, Y.; Goda, R.; Samata, K.; Kanda, A.; Hu, N.; Zhang, J.; Ning, H.; Wu, L. An Efficient Algorithm Embedded in an Ultrasonic Visualization Technique for Damage Inspection Using the AE Sensor Excitation Method. Sensors 2014, 14, 20439-20450.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top