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Effect of Pressure on Deep-Ocean Thermometers

  • A. PeruzziEmail author
  • S. Ober
  • R. Bosma
TEMPMEKO 2016
  • 130 Downloads
Part of the following topical collections:
  1. TEMPMEKO 2016: Selected Papers of the 12th International Symposium on Temperature, Humidity, Moisture and Thermal Measurements in Industry and Science

Abstract

A laboratory experiment was devised and performed to investigate the pressure dependence of Sea-Bird Electronics SBE35 and SBE3 deep-ocean thermometers. The thermometers were mounted in a massive brass comparator together with a calibrated standard platinum resistance thermometer. The measurements were performed in a pressure chamber in the pressure range 0.1 MPa to 60 MPa. The results showed that both the investigated SBE35 and SBE3 thermometers are pressure dependent, with a pressure sensitivity of +41 \(\upmu \)K\(\cdot \)MPa\(^{-1}\) and \(-77\) \(\upmu \)K\(\cdot \)MPa\(^{-1}\), respectively. Nevertheless, the results obtained in only one individual device per model (one SBE35 and one SBE3) cannot be generalized and further investigations of a larger number of devices per model are needed.

Keywords

Deep-ocean thermometers Pressure effect Thermistors 

Notes

Acknowledgements

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, LLC 2017

Authors and Affiliations

  1. 1.VSL, Dutch Metrology InstituteDelftThe Netherlands
  2. 2.NIOZ, Royal Netherlands Institute for Sea ResearchTexelThe Netherlands

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