ECT Eddy Current Tubing Inspection Testing,Eddy Current Flaw Detector,Eddy Current Analysis
Eddy Current Testing (ECT)
Eddy Current Testing
(ECT) is the most commonly used method, but limited too non-ferromagnetic, and slightly magnetic alloys (Monel 400).
(ECT) is the most commonly used method, but limited too non-ferromagnetic, and slightly magnetic alloys (Monel 400).
The Eddy Current technique is based on the induction of an electromagnetic field in the tube being examined and can detect various forms of internal and external damage.
The purpose of this application is to detect I.D. and O.D. degradation such as cracking, corrosion, erosion, pitting, fretting and gradual wall loss generally found in non-ferromagnetic tubing.
Eddy Current Testing (ECT) - How it works
Two coils are excited with an AC current, producing an alternating magnetic field around them.
The magnetic field penetrates the tube material and generates opposing AC currents in the material. These currents are called “eddy currents”.
Any defects that change the eddy current flow will change the impedance of the coils in the probe.
