How to Cite
Downloads
Métricas Alternativas
Dimensions
Abstract
We designed and built an indium fixed-point cell at the Instituto Nacional de Metrología (INM) as part of the implementation of a thermometric standard of the international temperature scale (ITS-90). To confirm the correct operation of the cell, we estimated the measurement uncertainty due to the repeatability of the phase transition. We found that this uncertainty source represented 1.5% of the expanded measurement uncertainty, which allowed us to conclude that no significant amounts of impurities were deposited during the filling process of the cell. We implemented a computational algorithm to automatically determine the moment when the solidification process ends.
Keywords
References
Carvajal, S. A. (2019). Desarrollo de un patrón termométrico basado en la solidificación del estaño. Universidad Nacional de Colombia.
CCT, B. (2017). Technical annex for the international scale of 1990 (its-90). Editores: Bureau International des Poids et Mesures (BIPM).
Croarkin, C., Tobias, P. (2013a). nist/sematech e-handbook of statistical methods, chapter 1.3.3.15. NIST/SEMATECH E-handb. Stat. Methods.
Croarkin, C., Tobias, P. (2013b). nist/sematech e-handbook of statistical methods, chapter 7. NIST/SEMATECH E-handb. Stat. Methods.
de Boor C. (1978). A practical guide to splines. Springer.
Drudy, M. (2017). Basis-expansion. https://github.com/madrury/basis-expansions.git.GitHub
Fellmuth, B., Hill, K., Pearce, J., Peruzzi, A., Steur, P., J.Zhang. (2015). Fixed points: Influence of impurities. Guide to the Realization of the ITS-90. Editores: Bureau International des Poids et Mesures (BIPM).
Instituto Nacional de Metrología. (2019). Misión, visión y creación, objetivo y funciones del INM. https://inm.gov.co/web/mision-y-vision/ (última revisión 2022-06-20).
Widiatmo, J.V., Sato, K., Yamazawa, K., Tamba, J., Masaru, A. (2010). Study on the realization of indium point. Journal of Control, Measurement, and System Integration, 3(3), 178-186.
Krapf, G., Schalles, M. (2009). Comparison of different methods of fixed-point temperature evaluation. IMEKO World Congres, (XIX), 1509-1513.
Lopardo, G., Dematteis, R., Steur, P.P.M. (2022). Characterization of a new zinc fixed-point cell for its-90 realization. Springer US.
Pearce, J.V., Veltcheva, R.I., Large, M.J. (2013). Impurity and thermal modelling of SPRT fixed points. In C. W. Meyer (Ed.), Temperature: its measurement and control in science and industry, AIP Conference Proceedings, 1552(1), 283-288. https://doi.org/10.1063/1.4819554
Pokhodun, A., Fellmuth, B., Pearce, J., Rusby, R., Steur, P., Tamura, O., Tew, L., White, D. (2021). Guide to the realization of the ITS-90 platinum resistance thermometry. CCT- BIPM.
Preston-Thomas, H. (1989). The international temperature scale of 1990 (its-90). Metrologia, 27(1), 3-10.
Shapiro, S. S., Wilk, M. B. (1965). An analysis of variance test for normality (complete samples). Biometrika, 52(3), 541-611.
Strouse, G. (2001). Indium freezing-point standard—SRM1745 and indium DCS melting-point standard —SRM2232. NIST Special Publication, 260(132).
Strouse, G. (2008). Standard platinum resistance thermometer calibrations from the Ar TP to the Ag FP. NIST Special Publication, 250(81).
Yamazawa K., Widiatmo, J. V., Arai, M. (2007). Thermal analysis of the heater-induced realization of the tin point. International Joournal Thermophysics, 28(6), 1941
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright (c) 2023 Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales