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Measurement Techniques
Published in: Measurement Techniques 10/2013

01-01-2013 | Thermal Measurements

The development of emissivity measurements under vacuum at the PTB

Authors: A. R. Adibekyan, C. Monte, M. Kehrt, S. P. Morozova, B. Gutschwager, J. Hollandt

Published in: Measurement Techniques | Issue 10/2013

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Abstract

The consistency of the values of the spectral radiance of two standard vacuum absolutely black bodies (low and medium temperature) in the 80–170°C range, forming part of the equipment for measuring emissivity under vacuum, is considered. It is shown that, using this equipment, one can measure spectral radiance at low radiation temperatures (down to –100°C) in the 4.5–20 μm wavelength band. The characteristics of the inner coating of the sample enclosure, required in order to make the measurements in the far infrared band and compatible with the vacuum conditions and low temperatures, are presented.
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Literature
1.
C. Monte et al., “Radiation thermometry and emissivity measurements under vacuum at the PTB,” Int. J. Thermophys., 30, 203–219 (2009).ADSCrossRef
2.
S. P. Morozova et al., “Vacuum variable temperature black body VLTBB100,” Int. J. Thermophys., 29, 341–351 (2008).ADSCrossRef
3.
S. P. Morozova et al., “Vacuum variable medium temperature black body VLTBB100,” Int. J. Thermophys., 31, 1809–1820 (2010).ADSCrossRef
4.
B. Gutschwager, R. Gärtner, and J. Hollandt, “An infrared precision radiation thermometer for the calibration of remote sensing instrumentations,” SPIE Vacuum Image and Signal Processing for Remote Sensing XV (2009), p. 7477.
5.
6.
C. Monte and J. Hollandt, “The measurement of directional spectral emissivity in the temperature range from 80°C to 400°C at the Physikalisch-Technische Bundesanstalt,” High Temp. – High Press., 39, 151–164 (2010).
7.
C. Monte and J. Hollandt, “The determination of the uncertainties of spectral emissivity measurements in air at the PTB,” Metrologia, 47, S172–S181 (2010).ADSCrossRef
Metadata
Title
The development of emissivity measurements under vacuum at the PTB
Authors
A. R. Adibekyan
C. Monte
M. Kehrt
S. P. Morozova
B. Gutschwager
J. Hollandt
Publication date
01-01-2013
Publisher
Springer US
Published in
Measurement Techniques / Issue 10/2013
Print ISSN: 0543-1972
Electronic ISSN: 1573-8906
DOI
https://doi.org/10.1007/s11018-012-0103-z

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