The Library
A new electromagnetic acoustic transducer design for generating and receiving S0 lamb waves in ferromagnetic steel plate
Tools
Tools
Tools
He, Jianpeng, Dixon, Steve M., Hill, Samuel Joseph and Xu, Ke (2017) A new electromagnetic acoustic transducer design for generating and receiving S0 lamb waves in ferromagnetic steel plate. Sensors, 17 (5). 1023. doi:10.3390/s17051023
Research output not available from this repository, contact author.
Official URL: http://dx.doi.org/10.3390/s17051023
Abstract
Electromagnetic acoustic transducers (EMATs) are non-contact, ultrasonic transducers that are usually kept within 5 mm from the sample surface to obtain a sufficient signal-to-noise ratio (SNR). One important issue associated with operation on a ferromagnetic plate is that the strong attraction force from the magnet can affect measurements and make scanning difficult. This paper investigates a method to generate fundamental, symmetric Lamb waves on a ferromagnetic plate. A coil-only, low-weight, generation EMAT is designed and investigated, operating at lift-offs of over 5 mm. Another design of an EMAT is investigated using a rectangular magnet with a much higher lift-off than the coil, of up to 19 mm. This results in a much lower force between the EMAT and sample, making scanning the EMAT much easier. View Full-Text
| Item Type: | Journal Article | ||||||
|---|---|---|---|---|---|---|---|
| Divisions: | Faculty of Science > Physics | ||||||
| Journal or Publication Title: | Sensors | ||||||
| Publisher: | MDPI AG | ||||||
| ISSN: | 1424-8220 | ||||||
| Official Date: | 4 May 2017 | ||||||
| Dates: |
|
||||||
| Volume: | 17 | ||||||
| Number: | 5 | ||||||
| Article Number: | 1023 | ||||||
| DOI: | 10.3390/s17051023 | ||||||
| Status: | Peer Reviewed | ||||||
| Publication Status: | Published | ||||||
| Access rights to Published version: | Open Access |
Request changes or add full text files to a record
Repository staff actions (login required)
 |
View Item |
