Miniature iron-carbon eutectic point crucible for the calibration of thermometers

Žužek, Vincencij (author), Bojkovski, Jovan (author)

The article presents the design, construction and evaluation of a miniature graphite iron-carbon eutectic point crucible for the calibration of thermometers. These are either contact such as thermocouples or non-contact such as infrared thermometers. The double wall of the crucible protects its structure in case of cracks in graphite that can appear due to thermal expansion or eutectic adhesion. Such design proved robust – even after almost 100 melting realizations, the crucible does not show significant signs of damage. Performance of the crucible was confirmed with several realized plateaus at three different furnace setpoints. Results of these measurements agree with previously published findings. The measured melting point temperature was 1153.81 °C and the achieved expanded calibration uncertainty of a type R thermocouple was 0.2 °C.

• Language: English
• Keywords: temperature, calibration, melting point, iron-carbon eutectic, crucible
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FE - Faculty of Electrical Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2021
• Number of pages: 6 str.
• Numbering: Vol. 181, art. 109619
• PID: 20.500.12556/RUL-138668
• UDC: 621.317
• ISSN on article: 0263-2241
• DOI: 10.1016/j.measurement.2021.109619
• COBISS.SI-ID: 66342915
• Publication date in RUL: 08.08.2022

Record is a part of a journal

• Title: Measurement : journal of the International Measurement Confederation
• Shortened title: Measurement
• Publisher: Elsevier, International Measurement Confederation
• ISSN: 0263-2241
• COBISS.SI-ID: 25917696

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Keywords: temperatura, umerjanje, tališče, evtektik železo-ogljik, talilniki

Projects

• Funder: Other - Other funder or multiple funders
• Funding programme: EMPIR
• Project number: 17IND04
• Name: Enhancing Process Efficiency Through Improved Temperature Measurement 2
• Acronym: EMPRESS 2

• Funder: Other - Other funder or multiple funders
• Funding programme: Republic of Slovenia, Ministry of Economic Development and Technology, Metrology Institute
• Project number: 6401-18/2008/70