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Aries Marine and Engineering Services

Remote Field Eddy Current Testing (RFET)

Remote Field Eddy Current Testing (RFET)

Remote Field Eddy Current Testing (RFET) is one of several electromagnetic testing methods based on the transmission of an eddy current through the tube material. This NDT technique is mainly used to find defects in steel pipes and tubes.

Aries Marine & Engineering Service use Remote Field Eddy Current Testing for finding defects in ferromagnetic components. This technique is best for detection and sizing of corrosion and mechanical damage in the tubes.

Aries Marine is capable to perform testing Remote Field Eddy Current Testing services to power plants, oil and gas refineries, on shore & offshore pipe lines and other industrial facilities.

Remote Field Eddy Current Testing Process

An alternating current is passed through a coil in order to create an alternating magnetic field which is used to induce a eddy current field into the material under test. Discontinuities such as fatigue cracks will interrupt the flow of eddy currents and alter the terminal impedance of the test coil. The amplitude and phase of the received signal can be interpreted to ascertain the severity and exact location of any discontinuities found.

The advantages of Remote Field Eddy Current Testing:

  • Requires no contact with the test subject
  • Large area of testing coverage
  • High sensitivity to distinct wall thickness variance