A study of the transduction mechanisms of electromagnetic acoustic transducers (EMATs) on pipe steel materials
- Submitting institution
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Brunel University London
- Unit of assessment
- 12 - Engineering
- Output identifier
- 057-110457-3646
- Type
- D - Journal article
- DOI
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10.1016/j.sna.2015.03.034
- Title of journal
- Sensors And Actuators, A: Physical
- Article number
- -
- First page
- 154
- Volume
- 229
- Issue
- -
- ISSN
- 0924-4247
- Open access status
- Out of scope for open access requirements
- Month of publication
- April
- Year of publication
- 2015
- URL
-
-
- Supplementary information
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-
- Request cross-referral to
- -
- Output has been delayed by COVID-19
- No
- COVID-19 affected output statement
- -
- Forensic science
- No
- Criminology
- No
- Interdisciplinary
- No
- Number of additional authors
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3
- Research group(s)
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4 - Sensors & Digital Systems
- Proposed double-weighted
- No
- Reserve for an output with double weighting
- No
- Additional information
- Electromagnetic acoustic transducers are used as noncontact method for non-destructive testing of pipe steel as well as other electrically conducting materials. The main advantage of EMAT compared to PZT-based transducers is that it does not require a couplant and avoids the cost of surface preparation. The novel modelling strategy is capable of decoupling, quantifying and numerically compares Dynamic Lorentz Force, Static Lorentz force and Magnetostrictive Force operating simultaneously to determine critical excitation current to generate the desired acoustic wave. This finding was used by TWI to design practical EMAT for defect detection in coated pipes info@twi-innovation-network.com.
- Author contribution statement
- -
- Non-English
- No
- English abstract
- -