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24 lines
1.4 KiB
24 lines
1.4 KiB
Testing via Electrical Conductivity
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As the name suggests, electrical conductivity provides information on
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how well a material conducts electricity. This non-destructive method
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provides information regarding the microstructure, mechanical properties
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and changes in composition. In industries such as aerospace, aluminum
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processing and precious metals, this plays a crucial role. The
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SIGMASCOPE® SMP350 is used, for example, for testing on aircraft wings.
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It was specially developed for measuring the electrical conductivity of
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non-ferrous metals or non-magnetizable metals in accordance with DIN EN
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2004-1 and allows conclusions to be drawn about the hardness and
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strength of heat-treated materials, among other things. The conductivity
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of aluminum alloys for anodizing processes can also be measured easily
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and non-destructively. The phase-sensitive eddy current method is used
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for the measurement.
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With the SIGMASCOPE® GOLD B and C hand-held gauges, you can test
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non-destructively one of the most precious materials: gold. The density
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of the base material tungsten is almost exactly the same as the density
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of gold – but the electrical conductivity of both differs significantly.
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This type of non-destructive material testing takes advantage of this
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fact. For example, the measurement of electrical conductivity in
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accordance with DIN 50994 allows the immediate detection of
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counterfeits.
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