Calibration of thermocouples from 419,527 °C (freezing point of Zn) up to 1492 °C (melting point of the Pd-C eutectic), by the temperature fixed point and comparison methodsShow others and affiliations
2020 (English)In: Metrologia, ISSN 0026-1394, E-ISSN 1681-7575, Vol. 57, no 1 A, p. 1-121, article id 03006Article in journal (Refereed) Published
Abstract [en]
This report present the results of the EURAMET inter-comparison carried out to compare the calibration of thermocouples from 419,527 °C (freezing point of Zn) up to 1492 °C (melting point of the Pd-C eutectic). This inter-comparison is intended to be used to support the calibration and measurement capabilities (CMCs) of the participants in the calibration of thermocouples. The comparison was organized in three loops with nineteen participating laboratories and it allowed the performance of the measurement either in fixed points and/or by comparison. The method used to analyse the results of the comparison was the generalized weighted mean that takes into account the full covariance matrix that includes correlations between the participants which have similar traceability sources and between measurements performed by the same laboratory (i.e. the pilots that performed measurements at the beginning and at the end of each loop and the measurements performed by the same laboratory in fixed points and by comparison at the same calibration point). Main text To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/. The final report has been peer-reviewed and approved for publication by the CCT, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).
Place, publisher, year, edition, pages
IOP Publishing Ltd , 2020. Vol. 57, no 1 A, p. 1-121, article id 03006
Keywords [en]
Calibration, Covariance matrix, Eutectics, Freezing, Melting point, Thermocouples, Calibration and measurement capabilities, Calibration points, Comparison methods, Freezing point, Intercomparisons, Key comparison database, Mutual recognition arrangements, Temperature-fixed point, Palladium compounds
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-51496DOI: 10.1088/0026-1394/57/1A/03006Scopus ID: 2-s2.0-85091259504OAI: oai:DiVA.org:ri-51496DiVA, id: diva2:1516263
2021-01-112021-01-112021-01-11Bibliographically approved