The First 20 years of the A.C. field Measurement Technique
The A.C. Field Measurement technique was originally developed as a non-contacting version of the A.C. Potential Drop technique, with the aim of accurately measuring the depth of surface-breaking fatigue cracks at welds underwater. Since the publication of the modelling work that made ACFM possible in 1988, the technique has expanded into many diverse applications, both underwater and on dry land. This paper describes the evolution of ACFM equipment from the first commercial systems produced in 1991 for underwater inspection of welded offshore structures, to the current sophisticated, semi-automated array systems for inspecting drill-string threads, storage tank welds, and rails.
ACFM underwater rail threads
Dr Martin LUGG
TSC Inspection Systems 6 Mill Square, Wolverton Mill, Milton Keynes, MK12 5RB, UK
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
2034-2041
2008-10-25（万方平台首次上网日期，不代表论文的发表时间）