Uncertainty of Thermographic Temperature Measurement with an Additional close-up Lens

IF 1 4区工程技术 Q4 INSTRUMENTS & INSTRUMENTATION

Measurement Science Review Pub Date : 2021-10-26 DOI:10.2478/msr-2021-0025

K. Dziarski, A. Hulewicz

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Abstract

Abstract The thermographic temperature measurement is burdened with uncertainty. This non-contact temperature measurement method makes it possible to measure the temperature of the electrical device under load. When the observed object is small (a few square millimeters) the spatial resolution of the thermographic cameras is often insufficient. In this case, the use of the additional macro lens is needed. After using an additional lens, the uncertainty of the thermographic measurement is different from the uncertainty of thermographic measurement without an additional lens. The values of the uncertainty contributions depend on the conditions during the measurement and the used methodology. The authors constructed an uncertainty budget of thermographic temperature measurement with an additional macro lens, based on EA-4/02 (European Accreditation publications). The uncertainty contributions were also calculated. On the basis of the calculated values of the uncertainty contributions, it was determined which factor had the greatest impact on the value of the thermographic temperature measurement with an additional lens.

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附加特写镜头热成像温度测量的不确定度

摘要热成像温度测量具有不确定性。这种非接触式温度测量方法使得可以在负载下测量电气设备的温度。当观察到的物体很小（几平方毫米）时，热成像相机的空间分辨率通常不足。在这种情况下，需要使用额外的微距镜头。使用附加透镜后，热成像测量的不确定度与没有附加透镜的热成像测量不确定度不同。不确定度贡献值取决于测量过程中的条件和使用的方法。作者根据EA-4/02（欧洲认证出版物）构建了一个带有附加微距透镜的热成像温度测量的不确定度预算。还计算了不确定性的贡献。根据不确定度贡献的计算值，确定了哪个因素对附加透镜的热成像温度测量值影响最大。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Measurement Science Review INSTRUMENTS & INSTRUMENTATION-

CiteScore

2.00

自引率

11.10%

发文量

审稿时长

4.8 months

期刊介绍： - theory of measurement - mathematical processing of measured data - measurement uncertainty minimisation - statistical methods in data evaluation and modelling - measurement as an interdisciplinary activity - measurement science in education - medical imaging methods, image processing - biosignal measurement, processing and analysis - model based biomeasurements - neural networks in biomeasurement - telemeasurement in biomedicine - measurement in nanomedicine - measurement of basic physical quantities - magnetic and electric fields measurements - measurement of geometrical and mechanical quantities - optical measuring methods - electromagnetic compatibility - measurement in material science