Skip to content Skip to navigation
University of Warwick
  • Study
  • |
  • Research
  • |
  • Business
  • |
  • Alumni
  • |
  • News
  • |
  • About

University of Warwick
Publications service & WRAP

Highlight your research

  • WRAP
    • Home
    • Search WRAP
    • Browse by Warwick Author
    • Browse WRAP by Year
    • Browse WRAP by Subject
    • Browse WRAP by Department
    • Browse WRAP by Funder
    • Browse Theses by Department
  • Publications Service
    • Home
    • Search Publications Service
    • Browse by Warwick Author
    • Browse Publications service by Year
    • Browse Publications service by Subject
    • Browse Publications service by Department
    • Browse Publications service by Funder
  • Help & Advice
University of Warwick

The Library

  • Login
  • Admin

Phased electromagnetic acoustic transducer array for Rayleigh wave surface defect detection

Tools
- Tools
+ Tools

Xiang, L., Greenshields, David, Dixon, S. and Edwards, R. S. (Rachel S.) (2020) Phased electromagnetic acoustic transducer array for Rayleigh wave surface defect detection. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 67 (7). pp. 1403-1411. doi:10.1109/TUFFC.2020.2968151 ISSN 1525-8955.

[img]
Preview
PDF
WRAP-phased-electromagnetic-acoustic-transducer-array-Rayleigh-wave-surface-defect-detection-Edwards-2020.pdf - Accepted Version - Requires a PDF viewer.

Download (1885Kb) | Preview
Official URL: http://dx.doi.org/10.1109/TUFFC.2020.2968151

Request Changes to record.

Abstract

A phased electromagnetic acoustic transducer (EMAT) array system has been developed for detection and characterisation of surface breaking defects. An array of four linear coils which are individually controlled are used to generate a Rayleigh wave. The high current electronics combined with the coil designs enables the array to generate either narrowband or broadband signals, and controlling the phase delay between the channels makes it possible to change the ultrasound wavelength without requiring the physical separation of the coils to be changed. Experimental results show that the four-coil phased array is able to generate a wavelength range from 3.0 mm to 11.7 mm. Surface breaking defects were characterised using a transmit-receive set-up with a broadband EMAT detector being used to detect the Rayleigh wave. Machined surface slots with different depths were used for technique validation. The results show that the array is sensitive to surface defects and that a wide depth sensitivity range for defect sizing can be easily achieved by applying phasing to tune the wavelength of operation. A large increase in detection flexibility is immediately shown.

Item Type: Journal Article
Subjects: Q Science > QC Physics
T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Science, Engineering and Medicine > Science > Physics
Library of Congress Subject Headings (LCSH): Rayleigh waves , Acoustic surface waves, Phased array antennas, Acoustic emission testing, Nondestructive testing, Surfaces (Technology) -- Defects
Journal or Publication Title: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Publisher: IEEE
ISSN: 1525-8955
Official Date: July 2020
Dates:
DateEvent
July 2020Published
20 January 2020Available
16 January 2020Accepted
Volume: 67
Number: 7
Page Range: pp. 1403-1411
DOI: 10.1109/TUFFC.2020.2968151
Status: Peer Reviewed
Publication Status: Published
Reuse Statement (publisher, data, author rights): © 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Access rights to Published version: Restricted or Subscription Access
Date of first compliant deposit: 5 February 2020
Date of first compliant Open Access: 19 February 2020

Request changes or add full text files to a record

Repository staff actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics

twitter

Email us: wrap@warwick.ac.uk
Contact Details
About Us