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