Effect of Pressure on Deep-Ocean Thermometers

  • A. PeruzziEmail author
  • S. Ober
  • R. Bosma
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 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.


Deep-ocean thermometers Pressure effect Thermistors 



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.


  1. 1.
    IPCC, 2013: Climate change 2013: The Physical Science Basis. Contribution of Working Group I to the 5 th Assessment Report of the Intergovernamental Panel on Climate Change, Cambridge University Press, Cambridge, UK and New York, NY, USA, p. 1535Google Scholar
  2. 2.
    C. Wunsch, Global ocean integrals and means, with trend implications. Annu. Rev. Mar. Sci. 8, 1–33 (2016)ADSCrossRefGoogle Scholar
  3. 3.
    G. Budeus, W. Schneider, In-situ temperature calibration: a remark on instruments and methods, in International WOCE Newsletter, No. 30, WOCE International Project Office, Southampton, UK, pp. 16–18 (1998)Google Scholar
  4. 4.
    H. Uchida, K. Ohyama, S. Ozawa, M. Fukasawa, J. Atmos. Ocean. Technol. 24, 1961–1967 (2007)Google Scholar
  5. 5.
    H. Uchida, T. Nakano, J. Tamba, J.V. Widiatmo, K. Yamazawa, S. Ozawa, T. Kawano, J. Atmos. Ocean. Technol. 32, 2199–2210 (2015)Google Scholar
  6. 6.
    R. Bosma, A. Peruzzi, R. van Breugel, C. Bruin-Barendregt, A sub-millikelvin calibration facility in the range 0 \(^\circ \)C to 30 \(^\circ \)C, Int. J. Thermophys (this conference)Google Scholar

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

Personalised recommendations