Abstract
For measurements of radiance temperatures in the range from 150°C to 1,000°C, low uncertainties in the temperature measurements can be achieved by using near-infrared InGaAs radiation thermometers. The design and construction of the NIST near-infrared radiation thermometer (NIRT) that is optimized for low size-of-source effect (SSE) and noise-equivalent temperatures are described. The NIRT utilizes a 50 mm diameter achromatic objective lens with low scatter that images a 4.5 mm diameter spot at a distance of 50 cm from the objective in an on-axis design. A Lyot stop is implemented in the design with the aperture stop placed after the field stop resulting in a collection f/12. A 3 mm diameter InGaAs detector is cooled to − 70°C using a four-stage thermoelectric cooler to obtain high-shunt resistance for linear, low-noise operation at high transimpedance amplifier gains. For thermal and structural stability, the optical components are placed on four, 15 mm diameter graphite-epoxy rods making the optical throughput stable. Optical ray tracing with a commercial program is used to determine the Strehl ratio and other imaging parameters. A possible approach for a detector-based temperature scale in this range which could result in 10 mK (k = 2) thermodynamic temperature uncertainties at the In-point is discussed.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
Ricolfi T., Battuello M., Girard F., Machin G., McEvoy H., Ugur S., Diril A. (2002). Meas. Sci. Technol. 13: 2090
F. Girard, T. Ricolfi, in Proceedings TEMPMEKO 2004, 9th International Symposium on Temperature and Thermal Measurements in Industry and Science, ed. by D. Zvizdić (FSB/LPM, Zagreb, Croatia, 2005), pp. 827–832
T. Ricolfi, F. Girard, in Proceedings of TEMPMEKO ’99, 7th International Symposium on Temperature and Thermal Measurements in Industry and Science, ed. by J.F. Dubbeldam, M.J. de Groot (Edauw Johannissen bv, Delft, 1999), pp. 593–598
B. Gutschwager, S. Schiller, J. Hartmann, J. Hollandt, in Proceedings TEMPMEKO 2004, 9th International Symposium on Temperature and Thermal Measurements in Industry and Science, ed. by D. Zvizdić (FSB/LPM, Zagreb, Croatia, 2005), pp. 605–610
Romeo G., Frulla G. (1995). J. Compos. Mater. 29: 751
Eppeldauer G.P. (2000). J. Res. Natl. Bur. Stand. (U.S.) 105: 29
Yoon H.W., Allen D.W., Saunders R.D. (2005). Metrologia 42: 89
D.W. Allen, G. Dezsi, H.W. Yoon, in Proceedings TEMPMEKO 2004, 9th International Symposium on Temperature and Thermal Measurements in Industry and Science, ed. by D. Zvizdić (FSB/LPM, Zagreb, Croatia, 2005), pp. 817–822
Yoon H.W., Allen D.W., Gibson C.E., Litorja M., Saunders R.D., Brown S.W., Eppeldauer G.P., Lykke K.R. (2007). Appl. Optics 46: 2870
Brown S.W., Eppeldauer G.P., Lykke K.R. (2006) . Appl. Optics 45: 8218
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Yoon, H.W., Gibson, C.E., Khromchenko, V. et al. SSE- and Noise-Optimized InGaAs Radiation Thermometer. Int J Thermophys 28, 2076–2086 (2007). https://doi.org/10.1007/s10765-007-0309-5
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10765-007-0309-5