An Explanation of the Echo-to-Echo Measurement Technique

摘要

The thickness of the coating is usually not important to the client when performing thickness surveys. Oftentimes, reports will indicate thickness values in excess of nominal because they include the coating, even in the face of known internal corrosion. The technician should be aware of all the techniques available to them, and the limitations, and attempt to utilise them appropriately. The techniques illustrated are meant for informational purposes and are not intended to be used in lieu of the procedures one has been instructed to use.