Thermal power plant High Pressure Feedwater Heater (HPH) tubing is usually inspected and measured for thickness by ultrasonic immersion testing with an intemally inserted probe. The tube to be inspected is flooded with water and the ultrasonic sensor is inserted then drawn through the length of the tube. In traditional inspections the minimum wall thickness of each tube is recorded and the possibility of continued usage is interpreted. But in recent years, in order to reduce maintenance costs, achieve mor...
英字タイトル:
High-speed Tube Wall-Thickness Measurement System