ВПЛИВ ОПТИЧНИХ ХАРАКТЕРИСТИК ОБ’ЄКТА ТА ПІРОМЕТРИЧНОЇ СИСТЕМИ НА ПОХИБКИ ОПОСЕРЕДКОВАНИХ ВИМІРЮВАНЬ ВИПРОМІНЮВАЛЬНОЇ ЗДАТНОСТІ ТА ТЕМПЕРАТУРИ
The present article aims to study the influence of the optical characteristics of a thermometeredobject and a pyrometric system on measurement errors of emissivity and temperature. The analysis andclassification of factors that determine methodical and instrumental measurement errors have beenperfor...
Збережено в:
| Дата: | 2023 |
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| Автори: | , |
| Формат: | Стаття |
| Мова: | Ukrainian |
| Опубліковано: |
General Energy Institute of the National Academy of Sciences of Ukraine
2023
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| Теми: | |
| Онлайн доступ: | https://systemre.org/index.php/journal/article/view/16 |
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| Назва журналу: | System Research in Energy |
Репозитарії
System Research in Energy| Резюме: | The present article aims to study the influence of the optical characteristics of a thermometeredobject and a pyrometric system on measurement errors of emissivity and temperature. The analysis andclassification of factors that determine methodical and instrumental measurement errors have beenperformed. The expressions which determine the complex multifactorial influence of object and systemoptical characteristics on methodical and instrumental errors have been derived. On the base of obtainedexpressions, the influence of the optical characteristics of a thermometered object and a pyrometricsystem on these errors is analyzed. The dominant influence of the optical characteristics of athermometered object on methodical errors of emissivity and temperature measurements has beenestablished. The influence of a system`s optical characteristics on methodical errors of emissivity andtemperature measurements has been studied under conditions of wide and real thermometered objectcharacteristics ranges of changes. As a result, a significant reduction of methodical errors was achievedby optimizing the optical characteristics of the system. Under conditions of fixed object characteristicsand operating wavelengths of a system, the influence regularities of primary pyrometric informationerrors (operating wavelengths setting and one-color radiation temperatures measurements) on theinstrumental errors have been obtained. A significant influence of the signs and modules of primarypyrometric information errors on them has been established. Instrumental errors are minimal in the caseof identical signs of primary pyrometric information errors for all operating waves, and maximum in thecase of different signs for the middle and boundary waves. With the same signs and modules of one-colorradiation temperatures measurement errors, the instrumental error of temperature measurements doesnot exceed their modules. |
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