Reference standard conductivity measurement

Reference standards for checking and setting up conductivity measurement

Optimum measurement results. Appropriate conductivity standards are used to check and set up the conductivity measurement with the SIGMATEST. The better the quality of this reference standard, the better the final measurement result. Therefore, the raw material must already meet various requirements, e.g. a homogeneous material structure.

As a standard FOERSTER offers conductivity standards traceable to an AC measurement of the NPL (National Physical Laboratory). This measurement is the closest to eddy current testing and provides the best readings when all measurement uncertainties are considered. FOERSTER continues to offer standards based on a DC measurement by the PTB (Physikalisch-Technische Bundesanstalt) on request. 

Product highlights

Your advantages at a glance

  • Highest measurement accuracy through high-quality, homogeneous reference standards
  • Traceability to NPL (AC) measurements for optimal eddy-current calibration
  • Compatible with both AC (NPL) and DC (PTB) conductivity standards
  • Minimised measurement uncertainty thanks to AC standards aligned with the eddy-current principle
  • Direct transfer of primary to secondary standards with consistent measurement electronics
  • Stable, reproducible results even with challenging material conditions
  • Future-proof calibration with AC-based standards

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