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Performance of acicular grindable thermocouples for temperature measurements at sliding contacts

Abstract

The present study investigates the performance of acicular grindable thermocouples based on a constantan wire / steel hollow cylinder construction. The experiments showed that the measuring junction electrical resistance, temperature–voltage characteristic, measuring junction rise time and signal noise standard deviation of the acicular thermocouples are comparable to those of conventional J-type thermocouples with bare wire diameter 0.25–0.5 mm. A pin-on-disc tribometer study of brake friction materials revealed that the acicular thermocouple involved in friction indicates up to 30% higher temperature than the contact temperature rise measured by infrared thermography. Another finding is that the infrared thermography contact temperature can be predicted with significantly higher accuracy by combining the acicular and conventional thermocouple techniques and taking the weighted sum of the respective temperatures.

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Authors (6)

  • Photo of dr hab. inż. Oleksii Nosko

    Oleksii Nosko dr hab. inż.

    • Politechnika Białostocka
  • Photo of  Wojciech Tarasiuk

    Wojciech Tarasiuk

  • Photo of dr inż. Yurii Tsybrii

    Yurii Tsybrii dr inż.

    • Politechnika Białostocka
  • Photo of  Andrey Nosko

    Andrey Nosko

  • Photo of  Adolfo Senatore

    Adolfo Senatore

  • Photo of  Veronica D'Urso

    Veronica D'Urso

Keywords

Details

Category:
Articles
Type:
artykuły w czasopismach
Published in:
MEASUREMENT no. 181,
ISSN: 0263-2241
Language:
English
Publication year:
2021
Bibliographic description:
Nosko O., Tarasiuk W., Tsybrii Y., Nosko A., Senatore A., D'Urso V.: Performance of acicular grindable thermocouples for temperature measurements at sliding contacts// MEASUREMENT -Vol. 181, (2021), s.109641-
DOI:
Digital Object Identifier (open in new tab) 10.1016/j.measurement.2021.109641
Verified by:
Gdańsk University of Technology

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