Visual inspection and routine maintenance are the two keys to ensuring the longevity and safe operation of liquid-containing tanks. When the remaining thickness of a tank wall is in doubt, ultrasonic testing can provide a definitive measurement, either at a given point, or across a broader spectrum of locations.An electronic ultrasonic thickness gauge (UTG) can test the wall thickness of materials, including steel, aluminum and plastic, and determine the effects of corrosion or erosion on any tank structure. Initially, such devices were used inside a tank to ensure that any coating on the tank exterior wouldn’t skew the measurements. The
