Immersion Multi-zone Ultrasonic Inspection System of Large-diameter Special Billets
An immersion ultrasonic inspection system has been developed for the inspection of round billets. The diameters of the billets are up to 450mm. In order to detect the defects at different depth inside the billets with the same sensitivity, full-body testing of billets is carried out using multi-zone longitudinal wave inspection and shear wave inspection techniques. Eight transducers have been carefully designed to cover the inspection of different depths. The transducer fixture has been specially designed to adjust water distance and angle of the transducers with different diameters and focal length and keep them constant even with the harsh industrial environment. In order to improve the test speed and resolution, multi-channel parallel digital ultrasonic instrument based on VXI bus and GE-developed ultrasonic electronics, UTxx, is used as test electronics to drive ultrasonic transducers. The system software with imaging software has been designed to display real-time C-scan images with different kinds of graphical representation and evaluation ways. The detailed design of the ultrasonic inspection system will be presented. In addition, the test results of the system on large-diameter billets will also be provided.
Ultrasonic testing Immersion tank Image processing Billet
Jianhua JIN Xueying LIU Maxim KRUSCHINSKI Diamond HAN
GE Sensing & Inspection Technologies;5F Hongcao Building, 421 Hongcao Road, Shanghai 200233, China Fushun Special Steel Co., Ltd; Fushun, China GE Sensing & Inspection Technologies; Alzenau, Germany;
国际会议
第十七届世界无损检测会议(17th World Conference on Nondestructive Testing)
上海
英文
1528-1536
2008-10-25（万方平台首次上网日期，不代表论文的发表时间）