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The progression of corrosion can be studied using continuous ultrasonic monitoring. A test rig was developed to artificially accelerate corrosion, and to ultrasonically monitor it on a real sample [1]. However, the corroded samples mostly underwent uniform corrosion, with low amounts of roughness. Non-uniform corrosion, or high surface roughness, prevents reliable ultrasonic thickness estimates. To...
Conservation of precious metallic works of art requires an in situ monitoring of the conditions of the objects and of the protecting coatings employed for their restoration. In this paper a simple diagnostic tool based on digital photography and 2D-FFT imaging processing is proposed that is used for monitoring the corrosion process occurring on metal surfaces. The proposed approach has been tested...
This paper gives a review of acoustic and ultrasonic optical fiber sensors (OFSs). The review covers optical fiber sensing methods for detecting dynamic strain signals, including general sound and acoustic signals, high-frequency signals, i.e., ultrasonic/ultrasound, and other signals such as acoustic emissions, and impact induced dynamic strain. Several optical fiber sensing methods are included,...
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