DOI QR코드

DOI QR Code

Size-of-source Effect and Self-radiation Effect of an Infrared Radiation Thermometer

적외선 복사온도계의 복사원 크기효과 및 자기복사효과

  • 유용심 (한국표준과학연구원 기반표준본부) ;
  • 김봉학 (한국표준과학연구원 기반표준본부) ;
  • 박철웅 (한국표준과학연구원 기반표준본부) ;
  • 박승남 (한국표준과학연구원 기반표준본부)
  • Received : 2010.04.27
  • Accepted : 2010.06.23
  • Published : 2010.08.25

Abstract

All radiation thermometers have a size-of-source effect (SSE) and a self-radiation effect (SRE). The SSE,defined as dependence of the detector signal of a radiation thermometer on the diameter of a source, is critically dependent on the wavelength since diffraction is the main cause. In this paper, we have measured the SSE and the SRE of TRT2 (Transfer Radiation Thermometer 2, HEITRONICS) widely used as a transfer standard in low and middle temperature range. At $300^{\circ}C$, The radiation temperature difference between the 60 mm diameter blackbody and 10 mm diameter blackbody due to the SSE was estimated to be $3.5^{\circ}C$ in low temperature mode ($8-14\;{\mu}m$) and $0.5^{\circ}C$ in middle temperature mode ($3.9\;{\mu}m$). In addition, the measured radiation temperature difference of the blackbody due to the SRE was found to be 110 mK when the body temperature change of TRT2 was set at $2.6^{\circ}C$.

References

  1. J. P. Rice and B. C. Johnson, “The NIST EOS thermalinfrared transfer radiometer,” Metrologia 35, 505-509 (1998). https://doi.org/10.1088/0026-1394/35/4/51
  2. F. Girard and T. Ricolfi, “Simple approach for temperature compensation in a transfer standard radiation thermometer,” in Proc. TEMPMEKO (Berlin, Germany, Jun. 2001), vol. 2, pp. 807-810.
  3. O. Struband and C. Staniewicz, “Transfer radiation thermometer covering the temperature range of -50$${^{\circ}c}$$ to 1000$${^{\circ}c}$$,” in Proc. TEMPMEKO (Berlin, Germany, Jun. 2001), vol. 2, pp. 811-816.
  4. H. W. Yoon, D. W. Allen, and R. D. Saunders, “Methods to reduce the size-of-source effect in radiometers,” Metrologia 42, 89-96 (2005). https://doi.org/10.1088/0026-1394/42/2/003
  5. B. Gutschwager, J. Hollandt, T Jankowski, and R. Gartner, “A vacuum infrared standard radiation thermometer at the PTB,” Int. J. Thermophys 29, 330-340 (2008). https://doi.org/10.1007/s10765-007-0349-x
  6. P. Blombergen, “On the uncertainty in the correction for the size-of-source effect,” Metrologia 46, 544-553 (2009). https://doi.org/10.1088/0026-1394/46/5/019
  7. P. Blombergen, “Analytical representations of the size-of-source effect,” Metrologia 46, 534-543 (2009). https://doi.org/10.1088/0026-1394/46/5/018
  8. P. Bloembergen, “On the correction for the size-of-source effect corrupted by background radiation,” in Proc. TEMPMEKO (Delft, Netherlands, Jun. 1999), vol. 2, pp. 607-612.
  9. G. Machin and M. Ibrahim, “A size of source effect and temperature uncertainty: II Low temperature systems,” in Proc. TEMPMEKO (Delft, Netherlands, Jun. 1999), vol. 2, pp. 687-692.
  10. I. Pusnik, G. Grgic, and J. Drnovsek, “System for the determination of the size-of-source effect of radiation thermometers with the direct reading of temperature,” Meas. Sci. Technol. 17, 1330-1336 (2006). https://doi.org/10.1088/0957-0233/17/6/007
  11. Y. S. Yoo, B.-H. Kim, C.-W. Park, D.-H. Lee, and S.-N. Park, “Size of source effect of a transfer reference thermometer suitable for the artefact of international comparisons near the room temperature,” in Proc. IMEKO (Lisbon, Portugal, 2009), pp. 1493-1496.
  12. P. Saunders and H. Edgar, “On the characterization and correction of the size-of-source effect in radiation thermometers,” Metrologia 46, 62-74 (2009). https://doi.org/10.1088/0026-1394/46/1/008
  13. J. B. Fowler, “A third generation water bath based blackbody source,” J. Res. Natl. Stand. Technol. 100, 591-599 (1995). https://doi.org/10.6028/jres.100.044

Cited by

  1. Realization of a radiation temperature scale from 0 °C to 232 °C by a thermal infrared thermometer based on a multiple-fixed-point technique vol.50, pp.4, 2013, https://doi.org/10.1088/0026-1394/50/4/409
  2. Construction and Characterization of a Large Aperture Blackbody for Infrared Radiometer Calibration vol.32, pp.7-8, 2011, https://doi.org/10.1007/s10765-011-0962-6