Variable- and fixed-point blackbody sources developed at VNIIOFI for precision measurements in radiometry and thermometry within 100K-3500K temperature range

V. I. Sapritsky; B. B. Khlevnoy; S. A. Ogarev; V. E. Privalsky; M. L. Samoylov; M. K. Sakharov; A. A. Bourdakin; A. S. Panfilov

doi:10.1117/12.684053

7 September 2006 Variable- and fixed-point blackbody sources developed at VNIIOFI for precision measurements in radiometry and thermometry within 100K-3500K temperature range

V. I. Sapritsky, B. B. Khlevnoy, S. A. Ogarev, V. E. Privalsky, M. L. Samoylov, M. K. Sakharov, A. A. Bourdakin, A. S. Panfilov

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Proceedings Volume 6297, Infrared Spaceborne Remote Sensing XIV; 629710 (2006) https://doi.org/10.1117/12.684053
Event: SPIE Optics + Photonics, 2006, San Diego, California, United States

Abstract

The demands of modern radiation thermometry and radiometry are being satisfied by a large variety of high-precision unique BB sources (both fixed-point and variable temperature) designed for a wide range of temperature from 100 K to 3500 K. The paper contains a detailed review of low-, medium- and high-temperature precision blackbodies developed at VNIIOFI as the basis of the spectral radiance and irradiance calibration devices in the rank of National standards. The blackbodies include: 1) variable-temperature (100K..1000K) research-grade extended-area (up to 100 mm) models intended to perform radiometric calibrations by comparison with a primary standard source, as well as can be used as the sources for high-accuracy IR calibration of space-borne and other systems not requiring a vacuum environment; 2) low-temperature fixed-point blackbodies on the basis of phase transitions of pure metals such as In and Ga sources, and the metal-metal eutectics operating within the medium-temperature range (300K to 400K); these are used for pyrometric measurements, IR-radiometry, preflight and (future aspects) in-flight calibration of space borne IR instruments; 3) high-temperature wide aperture variable-temperature blackbodies (1800K to 3500K) such as BB3500MP, BB3500YY designed and fabricated, along with fixed-point cells working above the ITS-90 temperatures on the basis of phase transitions of metal-carbon eutectic alloys (Re-C, TiC-C, ZrC-C, HfC-C), which possess unique reproducibility of 0.1% or less.

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V. I. Sapritsky, B. B. Khlevnoy, S. A. Ogarev, V. E. Privalsky, M. L. Samoylov, M. K. Sakharov, A. A. Bourdakin, and A. S. Panfilov "Variable- and fixed-point blackbody sources developed at VNIIOFI for precision measurements in radiometry and thermometry within 100K-3500K temperature range", Proc. SPIE 6297, Infrared Spaceborne Remote Sensing XIV, 629710 (7 September 2006); https://doi.org/10.1117/12.684053

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KEYWORDS

Black bodies

Temperature metrology

Calibration

Standards development

Copper

Metals

Radiometry

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