- Tytuł:
- Proposition of a method of determining the thermovision measurement extended uncertainty of the surface temperature of an object close to a camera lens
- Autorzy:
- Dziarski, Krzysztof
- Powiązania:
- https://bibliotekanauki.pl/articles/114078.pdf
- Data publikacji:
- 2019
- Wydawca:
- Stowarzyszenie Inżynierów i Techników Mechaników Polskich
- Tematy:
-
uncertainty
thermography
metrology - Opis:
- In the article the influence of selected factors occurring during thermal measurements on the uncertainty of thermovision temperature measurement is discussed. A situation in which the observed surface was close to the camera lens was measured (distance less than one meter). Based on the type B determination methodology described in the literature on the subject, a method of calculating the measurement extended uncertainty is proposed. A division of factors influencing the thermovision temperature measurement uncertainty into external factors and internal factors is also proposed. Factors associated with the conditions prevailing during the measurement, the geometry of the measurement system and the properties of the observed surface were considered external factors. Factors related to the calibration of the thermal imaging camera, the sensor matrix used and the properties of its measuring path were qualified as internal factors. The method of determining the value of the camera display at the highest and lowest value of a particular factor is discussed. The probability distribution for each of the external factors was determined. The measuring system constructed is presented. It is explained how the uncertainty shares and expanded uncertainty were determined in accordance with the method proposed.
- Źródło:
-
Measurement Automation Monitoring; 2019, 65, 1; 7-10
2450-2855 - Pojawia się w:
- Measurement Automation Monitoring
- Dostawca treści:
- Biblioteka Nauki
Artykuł