A5049247255- Calibration and Measurement Techniques
- Scientific Measurement and Uncertainty Evaluation
- Nuclear Physics and Applications
- Radiative Heat Transfer Studies
- Advanced Sensor Technologies Research
- Atmospheric Ozone and Climate
- Advanced Electrical Measurement Techniques
- Monetary Policy and Economic Impact
- Scientific Research and Discoveries
- Metallurgical Processes and Thermodynamics
- Solar Radiation and Photovoltaics
- Climate Change Policy and Economics
Conservatoire National des Arts et Métiers
2007-2022
National Metrology Institute of the Republic of Moldova
2007-2008
Laboratoire National de Métrologie et d'Essais
2006
The triple point of water serves to define the kelvin, unit thermodynamic temperature, in International System Units (SI). Furthermore, it is most important fixed Temperature Scale 1990 (ITS-90). Any uncertainty realization contributes directly measurement over wide temperature range from 13.8033 K 1234.93 K. Consultative Committee for Thermometry (CCT) decided at its 21st meeting 2001 carry out a comparison cells and charged BIPM with organization. Water 20 national metrology institutes...
This report presents the results of EUROMET regional key comparison corresponding to CCT-K3 and covering temperature range from 83.8058 K (triple point Ar) 692.77 (freezing Zn).
Main text This report describes the Key Comparison of Consultative Committee for Photometry and Radiometry CCPR-K1.a.2017 Spectral Irradiance in wavelength range 250 nm to 2500 nm. Tungsten quartz halogen lamps FEL type (1000 W) were used as artefacts. Each participant its own set lamps. The star scheme measurements was applied with sequence - pilot participant. Twelve National Metrology Institutes participated comparison. participant's measurement data based on a totally independent...
The comparison EUROMET.T-K4 is the regional extension of CCT-K4: an intercomparison realisations freezing points Al (660.323 ?C) and Ag (961.78 ?C). was organized in four loops with long stem standard platinum resistance thermometers (SPRTs) as travelling standards: One 25 ? thermometer to be used only at point two high temperature SPRTs each loop. Parallel measurements pilot sub-pilots internal using fixed cell. Most HTSPRTs showed a strong drift which mainly due mechanical stress poisoning...
Comparisons of indium freezing point cells have been carried out by the EUROMET TC-THERM group as Projects Nos 391 and 712. The main objective was to establish agreement between realizations within different participating laboratories, identify eliminate possible discrepancies. equipment has made available BNM?INM. Justervesenet coordinated project no 391, while 712 This paper is final report results obtained, including uncertainties in comparisons degrees equivalence laboratories. Main...
Abstract LNE-Cnam has changed its traceability chain for measuring the spectral irradiance of a light source. This facility allows calibration standard lamp based on comparison with high temperature blackbody (HTBB). The reference is determined by HTBB filter radiometer calibrated against our radiant flux reference. scheme differs from one used in former setup, which was mainly International Temperature Scale, ITS-90. Both principles are National Measurement Institutes. Our uses well known...