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SPARASCI F., “MeteoMet Work Package 2: Novel methods, instruments and measurements for climate parameters”, EMRP MeteoMet kick-off meeting, Turin, Italie, 12-13 octobre 2011.

SPARASCI F., “MeteoMet Task 2.2: Novel methods and instruments for atmospheric humidity measurement”, EMRP MeteoMet kick-off meeting, Turin, Italie, 12-13 octobre 2011.

GEORGIN E., « Les premiers pas vers la caractérisation des générateurs commerciaux », 15^e Congrès international de métrologie, Paris, France, 3-6 octobre 2011.

GEORGIN E., BONDOUX B. et BONJUS F., « Vers un principe de dilution pour la génération d’air humide au LNE-CETIAT », 15^e Congrès international de métrologie, Paris, France, 3-6 octobre 2011.

MOKDAD S., GEORGIN E., HERMIER Y., SPARASCI F. et HIMBERT M., “Development of a quasi-adiabatic calorimeter for the determination of the water vapor pressure curve”, Review of Scientific Instruments, 83, 075114, 2012, DOI: 10.1063/1.4737627.

MOKDAD S., GEORGIN E., HERMIER Y., SPARASCI F. et HIMBERT M., “Development of a quasi-adiabatic calorimeter for the determination of the water vapour pressure curve”, 9^th International Temperature Symposium, Anaheim, États-Unis, 19–23 mars 2012.

MERLONE A., LOPARDO G., ANTONSEN I., BELL S., BENYON R., BOESE N., VAHIT CIFTCI, DOBRE M., DRNOVSEK J., GEORGIN E., GRUDNIEWICZ E., HEINONEN M., HOLMSTEN M., VON HOLSTEIN-RATHLOU C., JOHANSSON J., DEL CAMPO D., MELVAD C., MERRISON J., MIGAŁA K., RANOSTAJ J., SAATHOFF H., SMORGON D., SPARASCI F., STRNAD R., SZMYRKA-GRZEBYK A. et VUILLERMOZ E., “A new challenge for meteorological measurements: the Meteomet project – Metrology for meteorology”, 9^th International Temperature Symposium, Anaheim, États-Unis, 19–23 mars 2012.

GEORGIN E., « Les mesures de très basses teneurs en humidité », Revue Contrôle Essais Mesures, 39, septembre 2012.

MERLONE A., LOPARDO G., ANTONSEN I., BELL S., BENYON R., BOESE N., DEL CAMPO D., DOBRE M., DRNOVŠEK J., ELKATMIS A., GEORGIN E., GRUDNIEWICZ E., HEINONEN M., HOLSTEIN-RATHLOU C., JOHANSSON J., KLASON P., KNOROVA R., MELVAD C., MERRISON J., MIGAA K., DE PODESTA M., SAATHOFF H., SMORGON D., SPARASCI F., STRNAD R., SZMYRKA-GRZEBYK A. et VUILLERMOZ E., “A new challenge for meteorological measurements: The MeteoMet project - Metrology for meteorology”, AIP Conference Proceedings, 1552, 1030, 2013, DOI: 10.1063/1.4821419.

SPARASCI F., PITRE L., BUÉE B., CAPPELLA A. et GEORGIN E., “A new generation of hygrometers based on microwave resonant cavities: design and preliminary tests”, Tempmeko 2013, Funchal, Madère, Portugal, 14–18 octobre 2013.

FERNICOLA V., GEORGIN E., HERMIER Y., MOKDAD S., ROSSO L. et SPARASCI F., “Progress in determining the equilibrium vapour pressure of liquid water and ice over the temperature range 193 K to 373 K”, 16^th International Conference on the Properties of Water and Steam, University of Greenwich, Londres, Royaume-Uni, 1–5 septembre 2013.

MOKDAD S. et al., “Measurement of saturation vapor pressure of pure water in the temperature range between 193.15 K and 328 K”, 16^th International Conference on the Properties of Water and Steam, University of Greenwich, Londres, Royaume-Uni, 1–5 septembre 2013.

GEORGIN E. et al., « Vers un principe de dilution pour la génération d’air humide au LNE-CETIAT », 16^e Congrès International de Métrologie, Paris, France, 7–10 octobre 2013.

PIERRAT L. et GEORGIN E., « Approche probabiliste pour la propagation d'incertitudes à travers un modèle de constante de temps thermique en régimes de convection naturelle et forcée », 16^e Congrès International de Métrologie, Paris, France, 7–10 octobre 2013.

BELL S. et al., “Status and strategy for moisture in materials metrology in european metrology institutes”, Tempmeko 2013, Funchal, Madère, Portugal, 14–18 octobre 2013.

FERNICOLA V. et al., “A European roadmap for humidity and moisture”, Tempmeko 2013, Funchal, Madère, Portugal, 14-18 octobre 2013.

HEINONEN M. et al., “Towards effective SI traceability for measurements of moisture in solids”, Tempmeko 2013, Funchal, Madère, Portugal, 14–18 octobre 2013.

MERLONE A. et al., “The ‘MeteoMet’ project – metrology for meteorology: challenges and results”, Tempmeko 2013, Funchal, Madère, Portugal, 14–18 octobre 2013.

MOKDAD S., GEORGIN E., HERMIER Y., SPARASCI F. et HIMBERT M., “Vapor pressure of water in the range from − 80 °C to 45 °C”, Tempmeko 2013, Funchal, Madère, Portugal, 14–18 octobre 2013.

None

CAPPELLA A., PITRE L., SPARASCI F. et GEORGIN E., “Differential quasi-spherical resonant cavity hygrometer for atmospheric moisture measurements”, International workshop on Metrology for Meteorology and Climate, Brdo, Slovenie, 15-18 septembre 2014.

SPARASCI F., BELL S., EMARDSON R., FERNICOLA V., FLAKIEWICZ K., GEORGIN E. et JOHANSSON J., “Meteomet WP2 novel methods, instruments and measurements for climate parameters, achievements in the JRP Meteomet”, International workshop on Metrology for Meteorology and Climate, Brdo, Slovenie, 15-18 septembre 2014.

GARCÍA IZQUIERDO C., LOPARDO G., MERLONE A., HÖRHAGER-BERL NORBERT N., GEORGIN E., STRNAD R., RASMUSSEN M., HODZIĆ N., HEINONEN M., BELL S., KLEIN A., DOBRE M., KALEMCI M., BEGEŠ G. et PERUZZI A., “Metrology for terrestrial and surface ECVs involved in METEOMET2”, International workshop on Metrology for Meteorology and Climate, Brdo, Slovenie, 15-18 septembre 2014.

KLEIN A., BELL S., EBERT V., FERNICOLA V., GEORGIN E., HEINONEN M. et SPARASCI F., “Detection techniques for online and on-site monitoring of essential climate variables in the upper atmosphere”, International workshop on Metrology for Meteorology and Climate, Brdo, Slovenie, 15-18 septembre 2014.

None

CAPPELLA A., PITRE L., SPARASCI F. et GEORGIN E., “Differential Microwave Hygrometer with Quasi-Spherical Resonators for Accurate Humidity Measurements on a Wide Range”, Nineteenth symposium on thermophysical properties, Boulder, États-Unis d'Amérique, 21-26 juin 2015.

BELL S., ARO R., ARPINO F., AYTEKIN S., CORTELLESSA G., DELL’ISOLA M., FERENCIKOVA Z., FERNICOLA V., GAVIOSO R., GEORGIN E., HEINONEN M., HUDOKLIN D., JALUKSE L., KARABOCE N., LEITO I., MAKYNEN A., MIAO P., NIELSEN J., NICOLESCU I., RUDOLFOVA M., OJANEN-SALORANTA M., OSTERBERG P., OSTERGAARD P., RUJAN M., SEGA M., STRNAD R. et VACHOVA T., “METefnet: developments in metrology for moisture in materials”, 17^e Congrès international de métrologie, Paris, France, 21-24 septembre 2015, DOI: 10.1051/metrology/20150015003.

GEORGIN E., ROCHAS J.F., HUBERT S., ACHARD P., BEN AYOUB M.W. et SABOUROUX P., “First steps in development of a new transfer standard, for moisture measurement, based on radio-frequency wave and micro-wave”, 17^e Congrès international de métrologie, Paris, France, 21-24 septembre 2015, DOI: 10.1051/metrology/20150015008.

HEINONEN M., CAVALLARIN L., DELL’ISOLA M., EBERT V., FERNICOLA V., GEORGIN E., HUDOKLIN D., NIELSEN J., ØSTERGAARD P.F., PERUZZI A., PIETARI T., WAGNER S. et WERHAHN O., “Metrology for humidity at high temperatures and transient conditions”, 17^e Congrès international de métrologie, Paris, France, 21-24 septembre 2015, DOI: 10.1051/metrology/20150015015.

Thick ceramic coatings deposited by plasma spraying techniques are widely used as heat, wear and corrosion resistant coatings at high temperature. The characterization of the thermal diffusivity and the thermal conductivity of these materials is especially important for coatings used in aeronautics, automotive and power generation industries. It is therefore necessary to have a reference facility for the measurement of these thermal properties over a wide range of temperature with reliable measurement uncertainties. LNE reference diffusivimeter, which is used for several years for measuring thermal diffusivity of homogeneous materials, is based on the principle of the rear-face flash method. This method is not convenient for the study of coatings or multilayered materials. The existing LNE facility has been thus set-up in order to enable the determination of the thermal diffusivity from the temperature of the front face or the rear face of the tested specimen. It also allows to measure simultaneously the thermal diffusivity and thermal effusivity of these coatings at high temperature by front-face flash method. This method has been first validated from room temperature to 1 400 °C by comparing the obtained results of thermal diffusivity of two wellknown homogeneous materials (Armco iron and Poco graphite) with those determined by using rear-face technique. The measured thermal diffusivity values have relative deviation of less than 3.5% depending on temperature and materials, with an expanded uncertainty less than 5.5%. The front-face laser flash method has then been applied to the determination of thermal conductivity of chromium oxide coating deposited on iron alloy substrate from 23°C to 800°C, by using simultaneous measurements of thermal diffusivity and thermal effusivity. The results were compared to thermal conductivity values determined by indirect method from thermal diffusivity, specific heat and density. The thermal conductivity values measured by using both methods are in good agreement, with a relative deviation of less than 7%, and are within the range of uncertainty of measurement.

At high temperatures (from 600 °C to 962 °C), the uncertainty of calibration by comparison of industrial platinum resistance thermometers and thermocouples is limited by the instability and the reliability of the standard platinum resistance thermometer and by the lack of uniformity of the temperature in the operating volumes of furnaces equipped with comparison blocks. To improve the performances of such calibrations by comparison, we studied the possibility to connect simultaneously several pressure-controlled heat-pipes filled with different working fluids to the same pressure control system. The experimental apparatus, called “temperature amplifier”, is composed of two heat-pipes filled with Sodium and water. This paper is a progress report on this study and presents the relevant uncertainties.

The work presented in this paper is part of a European project (Euramet 732) consisting in materialising the International Temperature Scale (ITS-90) between 83,805 8 K and 1 234,93 K. The French part of the project was done around two research topics. The first topic aimed at reducing the uncertainties affecting the materialisation of specific fixed points [Triple point of argon (83,805 8 K), triple point of mercury (234,315 6 K), freezing point of aluminum (933,473 K)]. The second axis consisted in developing a generator of temperature based on the techniques of adiabatic calorimetry at the indium point (429,748 5 K). Results from these studies either regarding the control of heat exchange or regarding the modeling of the impurities influence on the phase transition, could be extrapolated at the other fixed points. The technological innovations elaborated within the framework of this work could be also adapted to higher temperature ranges.