A STUDY OF INHOMOGENEITIES OF THERMOCOUPLES AND ITS CONTRIBUTION TO THE CALIBRATION UNCERTAINTY CALCULUS |
|---|
| M. A. P. Castanho, C. R. Baldo |
- Abstract:
- This paper presents a study on the measurement of thermocouple inhomogeneity and its contribution to the calculation of the uncertainty of thermocouple calibration. This study evaluated 26 thermocouples, including noble metal thermocouples (type S, R and B) and base metal thermocouples (type N, K, T and J). The measurements were carried out in alcohol, oil and salt baths, at temperatures from -40 ° C to 420 ° C. In this paper we propose a correlation of inhomogeneity value for each thermocouple type evaluated, considering the temperature range and immersion depth.
- Keywords:
- thermocouple, inhomogeneities, calibration, uncertainty
- Download:
- IMEKO-WC-2012-TC12-O3.pdf
- DOI:
- -
- Event details
- Event name:
- XX IMEKO World Congress
- Title:
Metrology for Green Growth
- Place:
- Busan, REPUBLIC of KOREA
- Time:
- 09 September 2012 - 12 September 2012