The distinctive feature of remote field eddy current method is the ability of detecting defects on the external (with respect to the eddy current transducer) side of the tested object, which is impossible for the classical eddy current method due to the limited eddy current penetration depth. The basics of the method were considered, the distinctive features were presented, and the advantages and disadvantages of remote field eddy current testing of metals were pointed out. A numerical simulation with the subsequent analysis of the obtained results has been carried out, the probe design for remote field eddy current testing is given. The influence of various factors on the change in the added voltage of the eddy current probe in the presence of a defect in the external wall of the tube was considered. Expressions that determine the optimal ratio of the diameters of the probe and the tested product were obtained. The values of the test parameters and the limiting wall thickness of the tested ferromagnetic product were determined.

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