Results of a pyroelectric detector calibration by a cryogenic radiometer at 10.6 mm

Jeanne M. Houston; Thomas R. Gentile

doi:10.1117/12.327991

26 October 1998 Results of a pyroelectric detector calibration by a cryogenic radiometer at 10.6 mm

Jeanne M. Houston, Thomas R. Gentile

Proceedings Volume 3436, Infrared Technology and Applications XXIV; (1998) https://doi.org/10.1117/12.327991
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

A pyroelectric detector was calibrated against the National Institute of Standards and Technology (NIST) High Accuracy Cryogenic Radiometer (HACR) at 10.6 mm using a CO₂ laser as a source. The purpose of this calibration was to link the NIST infrared (IR) radiometric detector scales to the HACR. Issues addressed in this calibration included the spatial non- uniformity of the pyroelectric detector, the transport and alignment of the IR laser beam, and the measurement of ac signals. The final combined relative standard uncertainty of the calibration is 0.48%, with the largest uncertainty component arising from the spatial non-uniformity of the pyroelectric detector. The apparatus, measurement procedures, and results of the calibration will be discussed.

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Jeanne M. Houston and Thomas R. Gentile "Results of a pyroelectric detector calibration by a cryogenic radiometer at 10.6 mm", Proc. SPIE 3436, Infrared Technology and Applications XXIV, (26 October 1998); https://doi.org/10.1117/12.327991

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