Bilateral comparison of radiation thermometers

Project Description

Objective of the project is to perform bilateral intercomparison of radiation thermometers of MIRS/UL-FE/LMK and NPL in the range from 600 °C to 1500 °C. Results will be used to support CMC entries of MIRS/UL-FE/LMK to the BIPM KCDB. 

Final Report 2015-03-16

The project has been completed and the report can be downloaded here>>.

Measurements were performed in both institutions in 2015 in the range from 600 °C to 1500°C.
After the analysis of results the measurements in the range from 600 °C to 1000 °C at NA heat pipe were inconsistent due to different distance of a transfer radiation thermometer from the blackbody aperture. After repeated measurements at the same distance the results were consistent. The analysis of result was presented at TEMPMEKO 2016 and will be sumbitted as an article to the IJT. The details of the analysis of results are described in the following chapters of this report.