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TitleDealing with the size-of-source effect in the calibration of direct-reading radiation thermometer
Publication TypeConference Paper
Year of Publication2013
AuthorsSaunders, P.
Conference NameAIP Conference Proceedings
Date Published2013
AbstractThe majority of general-purpose low-temperature handheld radiation thermometers are severely affected by the size-of-source effect (SSE). Calibration of these instruments is pointless unless the SSE is accounted for in the calibration process. Traditional SSE measurement techniques, however, are costly and time consuming, and because the instruments are direct-reading in temperature, traditional SSE results are not easily interpretable, particularly by the general user. This paper describes a simplified method for measuring the SSE, suitable for second-tier calibration laboratories and requiring no additional equipment, and proposes a means of reporting SSE results on a calibration certificate that should be easily understood by the non-specialist user. © 2013 AIP Publishing LLC.

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