A Radiometric Method Of Calibrating Infrared Sources, Using The Sr 5000 Infrared Spectroradiometer

A. Daniels; D. Cabib; Z. Kopolovich; R A Buckwald

doi:10.1117/12.948307

7 December 1988 A Radiometric Method Of Calibrating Infrared Sources, Using The SR 5000 Infrared Spectroradiometer

A. Daniels, D. Cabib, Z. Kopolovich, R A Buckwald

Proceedings Volume 0972, Infrared Technology XIV; (1988) https://doi.org/10.1117/12.948307
Event: 32nd Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1988, San Diego, CA, United States

Abstract

Commercial infrared sources (commonly known as "blackbodies") are useful as reference sources in as much as they emit known amounts of radiation. These sources are usually calibrated by contact temperature sensors (thermocouples), or by a radiometric nulling method. The former method assumes that the radiator emissivity is equal to one; the latter is very time consuming. In this paper we present the following: i)spectroradiometric measurements of a blackbody, which show that the temperature predicted radiometrically agrees with the nulling method calibration within the blackbody calibration accuracy (±2C); ii) analysis of the errors present in the radiometric calibration, which show that an accuracy better than ±2C can be expected from the SR 5000: the SR 5000 is used with an effective temperature software package and an NBS traceable reference blackbody. The analysis can be used to predict the accuracy that can be reached with other radiometers, once their performance parameters are known.

Citation Download Citation

A. Daniels, D. Cabib, Z. Kopolovich, and R A Buckwald "A Radiometric Method Of Calibrating Infrared Sources, Using The SR 5000 Infrared Spectroradiometer", Proc. SPIE 0972, Infrared Technology XIV, (7 December 1988); https://doi.org/10.1117/12.948307

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