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
• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

uncertainty; thermography; metrology

• Wydawca: Wydawnictwo PAK
• Czasopismo: Measurement Automation Monitoring
• Rocznik: 2019
• Tom: Vol. 65, No. 1
• Strony: 7--10
• Opis fizyczny: Bibliogr. 10 poz., tab., wzory

Twórcy

autor

Dziarski Krzysztof

• Poznan University of Technology, Faculty of Electrical Engineering, Piotrowo 3A, 60-965 Poznan

Bibliografia

• [1] Minkina W., Dudzik S.: Termografia w podczerwieni – błędy i niepewności. Wydawnictwo PAK, 2009, R. 55, nr 11.
• [2] Wałach T.: Uncertainty in temperature infrared measurements of electronic microcircuits. 15th International Conference on Mixed Design of Integrated Circuits and Systems, 2008.
• [3] Interpretation documents of the Polish Center for Accreditation, EA-4/02, 2013 https://www.pca.gov.pl/publikacje/dokumenty/ea-/ [access: 20.05.2019].
• [4] International vocabulary of metrology – Basic and general concepts and associated terms. 3rd edition, 2008.
• [5] Barański M., Polak A.: Thermographic diagnostic of electrical machines. The XIX International Conference on Electrical Machines - ICEM 2010.
• [6] Dragomir A., Adam M., Andruşcă M., Munteanu A.: Aspects Concerning the Influence of Environmental Factors in Infrared Monitoring of Electrical Equipment. International Conference and Exposition on Electrical and Power Engineering (EPE 2016), 20-22 October, Iasi, Romania, 2016.
• [7] Documentation of the Flir E50 camera https://assets. thermalcameraexperts.com/assets/1/26/FLIR_E50_Datasheet.pdf [acess: 20.05.2019].
• [8] Litwa M.: Influence of Angle of View on Temperature Measurements Using Thermovision Camera. IEEE Sensors Journal, Volume: 10, Issue:10, 2010.
• [9] Muniz P., Cani S., Magalhães R.: Influence of Field of View of Thermal Imagers and Angle of View on Temperature Measurements by Infrared Thermovision. IEEE Sensors Journal, vol. 14, no. 3, March 2014.
• [10] Collective work edited by H. Madura: Pomiary termowizyjne w praktyce. Agenda Wydawnicza PAK, 2004 [Thermographic measurements in practice. PAK Publishing Agenda, 2004].

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).