The ultrasonic IRIS option is used to inspect a wide range of materials, including ferrous, nonferrous, and nonmetallic tubing. This technique detects and sizes wall loss resulting from corrosion, erosion, wear, pitting, cracking, and baffle cuts. Olympus digital IRIS inspection technology is used extensively as a prove-up technique for remote field testing, magnetic flux leakage, and eddy current inspections. The system uses an immersion pulse echo technique in which a stream of water is used to spin a turbine containing the transducer. The turbine rotates a mirror, set at 45 degrees, to reflect the ultrasonic pulses radially into the tube wall. Reflections from the inner and outer walls of the tube follow the same path back to the transducer. The time interval between the first echo (the inner wall) and the second echo (the outer tube wall) measures the tube’s wall thickness. One hundred percent of the tube is inspected through a helical path, which is created when the transducer head traverses through the tube.

Application:

• Boiler Gen Bank tubes

• Feed Water Heaters

• Air Coolers

• Heat Exchanger