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TUBE INSPECTION

REMOTE FIELD EDDY CURRENT TESTING (RFET)

Remote Field Eddy Current Technique(RFET) . is based on the transmission of an electrromagnetic field through the tube material.The exciter coil generates eddy currents at low frequency in the circumferential direction.The Electromagnetic field transmits through the thickness and travels on the outer diamter.A receiver coil that is placed in the remote field zone of the exciter picks up this field.In this Zone,the wall current source dominates the primary field directly from the exciter.The RFET is generally used for detection of wall loss in Carbon Steel Tubes.

Tube Inspection with Remote Field Testing:

  • Boilers
  • Feed water heaters
  • Air coolers
  • Carbon steel heat exchangers