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14 cards from this deck
NDT using electromagnetic induction to detect flaws in non-ferrous materials
Non-ferrous materials (no iron)
Aluminium, copper, zinc
Circular electrical currents induced in conductive material by magnetic field
Iron rod, copper coil, oscilloscope
Current through coil makes iron rod an electromagnet
Flaws in material cause fluctuations in magnetic field shown on oscilloscope
Works on non-ferrous materials
Non-contact testing
Immediate feedback
Testing aluminium aircraft components
Only works on materials that conduct electricity
Best for surface and near-surface defects
Skilled operators needed to interpret readings
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