A Sub-millikelvin Calibration Facility in the Range 0 \(^{\circ }\)C to 30 \(^{\circ }\)C

  • R. BosmaEmail author
  • A. Peruzzi
  • R. Van Breugel
  • C. Bruin-Barendregt
Part of the following topical collections:
  1. TEMPMEKO 2016: Selected Papers of the 13th International Symposium on Temperature, Humidity, Moisture and Thermal Measurements in Industry and Science


A new sub-millikelvin calibration facility for the range 0 \(^{\circ }\)C to 30 \(^{\circ }\)C is described, that allows calibration of customer thermometers, other than standard platinum resistance thermometers, with an uncertainty lower than 1 millikelvin. The improvements with respect to the traditional calibration facility are reported with particular emphasis on the temperature control (better than 0.2 mK), resistance measurement and calibration procedure. The new facility was validated by using 6 standard platinum resistance thermometers and the calibration uncertainty in the range from 0 \(^{\circ }\)C to 30 \(^{\circ }\)C amounted to 0.31 mK–0.35 mK. To demonstrate the potentiality of this facility, two oceanographic thermometers, Sea-Bird Electronics SBE 3 and SBE 35, were calibrated with an expanded uncertainty of 0.8 mK (\(k=2\)).


Calibration Deep ocean thermometer Sub-millikelvin 



This work was performed in the frame of the European Metrology Research Programme (EMRP) Joint Research Project ENV58 “MeteoMet2”. The EMRP is jointly funded by the EMRP participating countries within EURAMET and the European Union.


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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  1. 1.VSL, Dutch Metrology InstituteDelftThe Netherlands

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