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Experimental setup of continuous ultrasonic monitoring for corrosion assessment

Suchato, Nutthawut; Kalashnikov, Alexander; Light, Roger; Sharples, Steve

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Nutthawut Suchato

Alexander Kalashnikov

Roger Light

Steve Sharples


The paper is devoted to the ultrasonic monitoring of accelerated corrosion. In order to achieve non-uniform corrosion (high surface roughness), passivation was applied to the corroding surface. A dedicated electronic multiplexed four channel front end was developed in order to feed the amplified waveforms from several transducers to the recording instrument. The experiment was conducted using two 5 MHz and two 10 MHz ultrasonic transducers all operating in the pulse echo mode. The transducers were excited in turn using gated bursts, and the received echoes were multiplexed and amplified before being digitized by a high accuracy ultrasonic instrument. Application of adaptive cross correlation to the recorded data allowed continuous thickness estimation of the non-uniformly corroded surface whilst cross correlation method gave unsatisfactory results.

Conference Name 2017 IEEE International Ultrasonics Symposium
Acceptance Date Jun 6, 2017
Online Publication Date Nov 2, 2017
Deposit Date Sep 6, 2017
Publicly Available Date Nov 2, 2017
Peer Reviewed Peer Reviewed
Keywords On-uniform corrosion; Electroplating current; Accelerated corrosion; Ultrasonic monitoring; Ultrasonic thickness estimates
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