Research on Defect Detection and Accurate Measurement for Stud of Pressure Vessel

Stud of pressure vessel is usually inspected in eddy current testing methods. Through theoretical analysis and experimental data verification, combined with strip signal, Lissajous signal, C-scan signal, and 3D signal of eddy current, the article introduces how to identify defects in fastening stud of pressure vessel using eddy current testing technology, how to measure accurately and judge the direction of defects, and how to use the method proposed in this article during non-destructive testing process.