Eddy-current Flaw Detector VD3-81 “EDDYCON” Application for Defect Detection in Oil and Gas Equipment Threaded Joints

The technology for eddy current testing of oil and gas equipment threaded sections is presented in the article, particularly associated with drill pipes and piston compressors. The article shows constructions of special-purpose scanners and ECPs that, being a part of universal flaw detector VD3-81 «EDDYCON», provide thread testing with the detuning from interfering factors such as gap change and ECP skew.