The calibration items in the area of high frequency metrology are elaborate technical devices, for example spectrum analysers, that are characterised among other things by a large number of functionalities and measurands that can be displayed. The increasing number of measurands leads to an increasing number of measurands that can be calibrated and accredited, but also to an increasing number of measurands that do not represent true calibration measurands and are instead only determined by reading the numerical display (display measurands).
To resolve this problem, the Sector Committee on High Frequency and Radiation Quantities has drawn up proposals for DAkkS on how for example the calibration and display measurands should be differentiated and which measurands represent actual calibration measurands that can in fact be assessed and accredited. The sector committee has also developed proposals for DAkkS on how for example the many high frequency and radiation measurands should be combined into groups (specific areas of activity) and how the scope and frequency of interlaboratory comparisons for our high frequency laboratories can be included in a single accreditation cycle.
The Sector Committee on High Frequency and Radiation Quantities is a DAkkS committees that advises the “High Frequency and Radiation Quantities” department on an honorary basis, for example on which supplementary criteria and specific requirements are relevant for the technical assessment and accreditation of high-frequency and radiation measurands in Germany. The members of this sector committee include active technical assessors at DAkkS, scientific staff at the National Metrology Institute of Germany (PTB) and heads of calibration laboratories.
Dr. Gerhard Rösel
Rohde & Schwarz Messgerätebau GmbH
Dr. Stefan Kück
Physikalisch-Technische Bundesanstalt (PTB), Braunschweig