Magnetostrictive Sensor for Generating and Detecting Plate Guided Waves

[+] Author and Article Information
Hegeon Kwun, Sang Young Kim

 Southwest Research Institute, 6220 Culebra Road, San Antonio, Texas 78238-5166

J. Pressure Vessel Technol 127(3), 284-289 (Mar 07, 2005) (6 pages) doi:10.1115/1.1991874 History: Received February 24, 2005; Revised March 07, 2005

The development of a magnetostrictive sensor for generating and detecting guided waves in ferromagnetic plate is described. The sensor consists of a channel-shaped core and coils wound around the core along its length. It is shown that the sensor is capable of generating and detecting both the symmetric and antisymmetric Lamb wave modes and the shear horizontal wave modes in plates. It is also found that the beam pattern produced by the sensor follows the pattern expected for a line source in a two-dimensional medium.

Copyright © 2005 by American Society of Mechanical Engineers
Topics: Sensors , Waves , Probes , Signals
Your Session has timed out. Please sign back in to continue.



Grahic Jump Location
Figure 6

Beam pattern data for a 100 kHz SH0 wave generated by a 116 mm long MsS probe: (a) Along the central axis, z, of the probe and (b), (c), and (d) across the sample width at different z values. Circles are experimental data, and the lines are calculated based on the diffraction theory.

Grahic Jump Location
Figure 5

Shear horizontal (SH) mode data: (a) Detected signals and (b) a time-frequency representation of the detected signals

Grahic Jump Location
Figure 3

Lamb wave mode data: (a) Detected signals and (b) a time-frequency representation of the detected signals

Grahic Jump Location
Figure 2

Sensor arrangements on plate sample: (a) For investigation of wave modes generated and detected and (b) for investigation of beam patterns

Grahic Jump Location
Figure 1

General configuration of MsS design for guided wave generation and detection in plates

Grahic Jump Location
Figure 4

Calculated dispersion curves for Lamb and shear horizontal (SH) wave modes in 6.35 mm thick steel plate



Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In