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Eddy Current

Eddy-current testing (also commonly seen as eddy current testing and ECT) is one of many electromagnetic testing methods used in nondestructive testing (NDT) making use of electromagnetic induction to detect and characterize surface and sub-surface flaws in conductive materials.


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Eddy Current

Introduction

Product Features

Eddy current tube detection is a non-destructive method for finding pipe defects that is effective for many different pipe materials and can detect defects that may cause greater problems for heat exchangers and condensers.

Several types of defects in the pipe can be detected using an eddy current detection method:

1.Internal diameter (ID) and outer diameter (OD) pitting

2.cracking

3.Wear (from supporting structures, other pipes and loose parts)

4.Outer diameter and inner diameter erosion

Eddy currents are formed by an alternating magnetic field as an energized A/C coil nears a conductive material.

When there is a defect in the material, the flow of the currents changes and can be detected by measuring the impedance changes that occur in the A/C coil. This method of testing is a very efficient non-destructive method for finding defects in the heat exchanger and condenser tubing.