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Technologically advanced, fully-digital ultrasonic wall-thickness measurement systems coupled with Internet of Things (IoT) back-haul data communication schemes, including cellular, are enabling transportable,accurate and cost-effective corrosion-monitoring systems.
Recent technological advances in precision fully-digital ultrasonic wall-thickness measurement systems coupled with IoT (Internet of Things) back-haul data communication schemes are enabling accurate and more cost-effective corrosion monitoring systems that can compete with older and more traditional methods. Comparisons show improved data accuracy of permanently-installed sensors in lieu of larger quantities of manually-taken spot data is presented. This paper will include the design principles used in the creation of this next-generation platform end-user input used to refine the design and recent installation and operational experiences.
Key words: Ultrasonic thickness measurement, UT, TML, CML, Corrosion, Erosion, Corrosion Rate, Non-intrusive, Wall thickness monitoring, IoT, M2M.
Permanently installed transducers have improved the precision of ultrasonic inspection by orders of magnitude and provide an accurate non-invasive alternative to other corrosion monitoring methods.
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The authors will demonstrate that deploying only a modest number of point measurement devices in an area of elevated localized corrosion risk will provide the best possible combination of probability of detection (POD) as well as ongoing wall thickness monitoring for localized corrosion attack.
This trial demonstrated that ultrasonic monitoring can be applied to detect changes in real-life corrosion rates in a short time (3 weeks). This short feedback time can be used to give advanced warnings on corrosion issues on bends, T-pieces or other areas.