Reducing the influence of human factors on the reliability of manual ultrasonic weld inspection

摘要

Because the reliability of low-cost manual ultrasonic testing is limited by human factors, it cannot compete with radiographic inspection of welded joints, in spite of the higher attainable flaw sensitivity. To minimise these human factors, a new 'I~2- Sonic' manual ultrasonic testing procedure has been developed. The principles, the results obtained and some new concepts are discussed.