Numerical study and optimal design of the butterfly coil EMAT for signal amplitude enhancement

J Zhang, M Liu, X Jia, R Gao - Sensors, 2022 - mdpi.com
The low energy conversion efficiency of electromagnetic acoustic transducers (EMATs) is a
critical issue in nondestructive testing applications. To overcome this shortcoming, a butterfly …

[HTML][HTML] Induction coil as a non-contacting ultrasound transmitter and detector: Modeling of magnetic fields for improving the performance

D Rueter - Ultrasonics, 2016 - Elsevier
A simple copper coil without a voluminous stationary magnet can be utilized as a non-
contacting transmitter and as a detector for ultrasonic vibrations in metals. Advantages of …

Closed-form shrinkage function based on mixture of Gauss–Laplace distributions for dropping ambient noise

KI Kim, WU Kwak, KH Choe - International Journal of Wavelets …, 2023 - World Scientific
Removing the ambient noise and increasing the signal-to-noise ratio are very important for
detecting defects and corrosions of conductive material by using the electromagnetic …

Effect of coil configuration on conversion efficiency of EMAT on 7050 aluminum alloy

Y Wu, L Han, H Gong, J Yang, W Li - Energies, 2017 - mdpi.com
Compared to traditional ultrasonic detection methods, the electromagnetic acoustic
transducer (EMAT) technique can be applied in many hostile environments such as elevated …

Coupled finite element modelling and transduction analysis of a novel EMAT configuration operating on pipe steel materials

EC Ashigwuike - 2014 - bura.brunel.ac.uk
Electromagnetic Acoustic Transducers (EMATs) are advanced ultrasonic transducers that
generate and detect acoustic waves in an electrically conducting material without making …