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Chair of Materials and Surface Engineering
Materials and Surface Engineering
Chair of Materials and Surface Engineering 

Determination of the electrical conductivity of non-ferrous metals

The SIGMASCOP SMP10 from Fischer is a battery-operated hand-held device for measuring electrical conductivity. The measurement is based on the eddy current principle according to DIN EN 2204-1 and ASTM E 1004. The measurement signal evaluation is phase-sensitive. The device has a high measuring accuracy. The tracking of precipitation processes (e.g. with Cu-Cr alloys) have been proven. In aircraft construction, the measuring device is used to check the purity and homogeneity of alloys (Al) (quality assurance). It is also used in scrap sorting.

Technical data:

Measuring range:
0.5 - 65 MS/m or 1 - 112 %IACS
60, 120, 240, 480 kHz

Temperature:
Integrated temperature sensor, optional external temperature sensor or manual temperature input
Consideration of the temperature coefficient of electrical conductivity valid for the material

Device:
Battery-operated hand-held unit, LCD screen, keypad with direct access to the most important measuring functions

Evaluation:
Statistical evaluation of measurement series
Calculation of Cp, Cpk and histogram representation
RS232 interface for data output to printer or PC

Applications:

  • Measurement of the electrical conductivity of non-magnetisable metals (non-ferrous metals)
  • Non-contact measurement up to 0.5 mm paint or plastic layers
  • Determination of changes in composition (e.g. phosphorus content in copper, precipitation processes in Cu-Cr alloys, degree of purity, etc.)
  • Checking the homogeneity of alloys
  • Scrap sorting

Sigmascope SMP10