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The Phased Array Ultrasonic Testing Calibration Block for the Circumferential Scan Located at Tapered Weld and System for Measuring the Position of refracting angle and twisting angle using thereof
The Phased Array Ultrasonic Testing Calibration Block for the Circumferential Scan Located at Tapered Weld and System for Measuring the Position of refracting angle and twisting angle using thereof
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机译：锥形焊缝周向扫描相控阵超声测试校准块及利用其测量折射角和扭转角位置的系统
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摘要
PURPOSE: A phased array calibration block for an ultrasonic flaw detection for a circumferential direction inspection of a welding portion arranged on an inclined surface and a system for measuring a location of an angle of refraction and twisting using the same are provided to obtain reflective waves with respect to an angle of refraction and twisting generated in any location on 3D so that a correcting operation performing before, in the middle of, and after an inspection and the accurate inspection are possible. CONSTITUTION: A phased array calibration block(410) for an ultrasonic flaw detection for a circumferential direction inspection of a welding portion arranged on an inclined surface comprises a long time axis correction part(430), a short time axis correction part(440), and a curvature probe contact surface(420). The long time axis correction part takes a length corresponding to a distance in which a correction is required as a first radius. The short time axis correction part takes the length corresponding to a distance in which the additional correction is required as a second radius. The curvature probe contact surface has a curvature same with the curvature of a test piece.
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