Electrical Property Testing of Aircraft components by Eddy-Current Testing


  • Rittichai Phaoniam
  • Somchai Wonthaisong -
  • Jakkrapan Chara


Reference Standard, Eddy-Current Testing, Impedance Signal, Resistivity, Conductivity


The purpose of this research is to study the mechanical properties of materials used as the reference standard in eddy-current testing for aircraft components. They can indicate and identify the material type from the impedance signal, which obviously occurred, and the transformation of the rotating eddy current testing signal changed. The results found that the impedance signal of each material could be classified into two groups; ferromagnetic and non-ferromagnetic, based on the signal characteristics shown on the display screen where the zones were clearly defined. For aircraft components, the uniform impedance signal was compared with the reference standard. The electrical properties of the reference-standard materials and aircraft components received from the impedance signal gave a resistivity of 2.3–35.2 µΩ.cm. and a conductivity of 4.90–53.90 IACS% for aluminum. The titanium had a resistivity between 112.8 and 177 µΩ.cm. and a conductivity between 0.97 and 1.53 IACS%. The electrical properties of both types of materials were consistent with the specific properties of the studied materials.






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