Evaluation of the self‐heating effect in a group of thermometers used in meteorological and climate applications.

A procedure for the metrological evaluation of the self‐heating effect in resistance thermometers is reported. This procedure is applied to different designs of resistance thermometers, used for meteorological and climate applications. The study of the self‐heating effect variation with the applied electrical current, temperature and different surrounding environments is described, as well as the influence of wind speed on the self‐heating effect. Variation of the standard deviation of the thermometer resistance mean with the applied electrical current, at different temperatures and with different external environments. [ABSTRACT FROM AUTHOR]