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Advanced Ndt Services

Alternating Current Field Measurement(ACFM)

Inspection Services in UAE, Inspection Companies in UAE, Third party Inspection in UAE, Thrid party Inspection Companies in UAE, Lifting Inspection Services in UAE, NDT Inspection in UAE, Ndt Services in UAE, conventional ndt inspection in uae, advanced ndt inspection in UAE, third party inspection services in UAE, rope access ndt inspection services in UAE, inspection company in UAE, Loose gear Inspection in UAE, Chemical Analysis in UAE, corrosion control services in UAE, Level III Services In UAE, QA/QC Services In UAE, Blasting And Painting, Electromagnetic / MFL Inspection, MFL Inspection, Inspection Services In UAE, NDT Company in UAE, NDT Inspection In UAE. Alternating current field measurement (ACFM) is an electromagnetic technique used for the detection and sizing of surface breaking cracks in metallic components and welds. It combines the advantages of the alternating current potential drop (ACPD) technique and Eddy Current Testing (ECT) in terms of defect sizing without calibration and ability to work without electrical contact respectively.
The ACFM probe introduces an electric current locally into the part and measures the associated electromagnetic fields close to the surface. The presence of a defect disturbs the associated fields and the information is graphically presented to the system operator. The ends of a defect are easily identified to provide information on defect location and length. Through wall extent of the flaw plays an important role in determining structural integrity and the same is calculated using mathematical computation thus allowing an immediate evaluation of the implication of the indication. ACFM inspection can be performed through paint and coatings, hence it is considered to be a faster and economic technique than others (E.g. magnetic particle inspection (MPI)

Advantages:

  • Applicable for base material or welds, ferritic or non-ferritic conductive metals.
  • Can be used on hot surfaces, underwater, or in irradiated environments.
  • Provides both depth and length information.
  • Accurate sizing of defects up to 25mm in depth.
  • Requires minimal surface preparation and can be applied over paint and other coatings.
  • Applicable for under water inspection as well as normal inspection.
  • Inspection data can be stored and analysed offline.