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

Abstract

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.