Sophian, A., Edwards, R.S., Tian, G.Y. and Dixon, S. (2005) Dual-probe methods using pulsed eddy currents and electromagnetic acoustic transducers for NDT inspection. Insight, 47 (6). pp. 341-345. ISSN 1354-2575
Abstract

In this article, the introduction of a new NDT system that utilises two different non-contact techniques in a complementary mode, namely Electromagnetic Acoustic Transducers (EMATs) generating surface ultrasonic waves, and Pulsed Eddy Current (PEC) sensors, is reported. Being non-contact, both lend themselves to automatic on-line inspection that can benefit inspection of materials during the manufacturing process and whilst in service. This paper also highlights other potential benefits and presents some preliminary experimental results

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