Guided wave has created a structural health monitoring (SHM) technique for inspecting large diameter storage tank floors. Current inspection techniques for storage tank floors require tank shutdown and the tank to be drained of product and cleaned prior to inspection. Prior to shutting down the tank and conducting an inspection, little information is available about the tank floor condition. In some cases, corrosion or other damage causes leaks in the floor which are not detected until product is observed on the ground outside the tank. Therefore, there is a great need for developing a real-time SHM system that can detect damage while the tank is in service. To achieve this, an ultrasonic guided wave tomography SHM approach was developed.

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