Investigations of Thermocouple Drift Irregularity Impact on Error of their Inhomogeneity Correction

Su Jun; Orest Kochan

doi:10.2478/msr-2014-0005

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Investigations of Thermocouple Drift Irregularity Impact on Error of their Inhomogeneity Correction

Measurement Science Review

Volume 14 (2014): Issue 1 (February 2014)

By: Su Jun and Orest Kochan

Open Access

|Mar 2014

Abstract

The article examines: (i) the reasons of error due to thermoelectric inhomogeneity of electrodes of thermocouples acquired during prolonged use; (ii) the neural network method of error correction based on a generalization of verification results in several temperature fields; (iii) the method of investigating the impact of changing the speed of the conversion characteristic drift of thermocouple on error correction; (iv) results of this investigation. It is shown that residual error for type K thermocouples at the 5 % level of significance does not exceed μ±0.46 oС and one at the 10 % level of significance does not exceed ±0.25 °С

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Articles in this issue

DOI: https://doi.org/10.2478/msr-2014-0005 | Journal eISSN: 1335-8871

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Language: English

Page range: 29 - 34

Published on: Mar 6, 2014

Published by: Slovak Academy of Sciences, Institute of Measurement Science

In partnership with: Paradigm Publishing Services

Publication frequency: Volume open

Keywords:

Temperature measurement errors,

thermocouple,

error due to inhomogeneity

Related subjects:

Engineering,

Electrical engineering,

Control engineering, metrology and testing

© 2014 Su Jun, Orest Kochan, published by Slovak Academy of Sciences, Institute of Measurement Science
This work is licensed under the Creative Commons License.

Volume 14 (2014): Issue 1 (February 2014)