One of the most critical challenges in nuclear power is reliably determining the temperature state of fuel assemblies. Successful resolution of this problem affects the possibilities for enhancing a nuclear reactor's reliability, efficiency, and service life.
This paper analyzes methods for detecting the contact of the thermocouple in the reactor cassette head for temperature measurement.
In the modern world of scientific and technological progress, the requirements for the accuracy and reliability of measurements are becoming increasingly stringent. The rapid development of machine learning (ML) methods opens up perspectives for improving metrological processes and enhancing the quality of measurements. This article explores the potential application of ML methods in metrology, outlining the main types of ML models in automatic instrument calibration, analysis, and prediction of data.
Розглядається запропонований метод підвищення точності вимірювання темпера- тури мікропроцесорним терморезистивним термометром, в якому завдяки використан- ню структурно-аналітичної надлишковості одержується функція вимірювального перетворення з інваріантністю щодо нелінійності статичної характеристики напів- провідникового первинного перетворювача, прогресуючого дрейфу градуювальної характеристики термометра та дії на нього різних дестабілізуючих факторів.
Object temperature diagnostics by means of infrared temperature measurements as well as measurements of temperature gradients are considered. Values of the surface temperature carry information about the internal structure, defects and their location of measured object. This information becomes quite important for preventive measures and repairs of technical objects.
The major error of temperature measurements of different objects is due to uncertainty of their emissivity factor value. And vice versa, for correct determination of a true temperature, using conventional temperature means (pyrometers, thermal image cameras), one has to know in advance the emissivity factor of the studied object’s surface or better to set its value in place immediately before a measurement. The latter is proposed by authors to significantly increase the accuracy of temperature measurement.