High Temperature Shear Horizontal Electromagnetic Acoustic Transducer for Guided Wave Inspection.
Guided Wave Testing (GWT) using novel Electromagnetic Acoustic Transducers (EMATs) is proposed for the inspection of large structures operating at high temperatures. To date, high temperature EMATs have been developed only for thickness measurements and they are not suitable for GWT. A pair of water-cooled EMATs capable of exciting and receiving Shear Horizontal (SH₀) waves for GWT with optimal high temperature properties (up to 500 °C) has been developed. Thermal and Computational Fluid Dynamic (CFD) simulations of the EMAT design have been performed and experimentally validated. The optimal thermal EMAT design, material selection and operating conditions were calculated. The EMAT was successfully tested regarding its thermal and GWT performance from ambient temperature to 500 °C.
Brunel Innovation Centre (BIC), Brunel University, Cambridge CB21 6AL, UK. maria.kogia@brunel.ac.uk.
Maria
M
Kogia
Brunel Innovation Centre (BIC), Brunel University, Cambridge CB21 6AL, UK. tat-hean.gan@brunel.ac.uk.|TWI Ltd., Granta Park, Great Abington, Cambridge CB21 6AL, UK. tat-hean.gan@brunel.ac.uk.
Tat-Hean
TH
Gan
Brunel Innovation Centre (BIC), Brunel University, Cambridge CB21 6AL, UK. wamadeva.balachandran@brunel.ac.uk.
Wamadeva
W
Balachandran
Brunel Innovation Centre (BIC), Brunel University, Cambridge CB21 6AL, UK. makis.livadas@brunel.ac.uk.
Makis
M
Livadas
Brunel Innovation Centre (BIC), Brunel University, Cambridge CB21 6AL, UK. vassiliskappatos@gmail.com.
Vassilios
V
Kappatos
Brunel Innovation Centre (BIC), Brunel University, Cambridge CB21 6AL, UK. istvan.szabo@brunel.ac.uk.
Istvan
I
Szabo
Brunel Innovation Centre (BIC), Brunel University, Cambridge CB21 6AL, UK. abbas.mohimi@brunel.ac.uk.|TWI Ltd., Granta Park, Great Abington, Cambridge CB21 6AL, UK. abbas.mohimi@brunel.ac.uk.
Abbas
A
Mohimi
Brunel Innovation Centre (BIC), Brunel University, Cambridge CB21 6AL, UK. andrew.round94@gmail.com.
Andrew
A
Round
EMAT; Electromagnetic Acoustic Transducers; Guided Wave Testing; high temperature inspection