Influence of sun radiation on results of non-contact temperature measurements in far infrared range

• Autorzy: Madura, H. , Kołodziejczyk, M.
• Języki publikacji: EN

Abstrakty

EN

Non-contact measurements of an object temperature in IR range carried out in outdoor conditions can suffer from significant errors. An error of temperature measurement can be very high when sun radiation after reflection from an object propagates along optical axis of a measuring device (thermovision camera, pyrometer). Radiation beams reflected from an object and objectís radiation itself are added and a final value of temperature is higher. The paper presents results of theoretical estimations of errors of temperature measurement and their comparison with experimental results. Calculations and measurements were made for objects of various emissivities in a spectral range of 8-9 µm.

Słowa kluczowe

EN

pyrometry; thermography; sun radiation

• Czasopismo: Opto-Electronics Review
• Rocznik: 2005
• Tom: Vol. 13, No. 3
• Strony: 253-257
• Opis fizyczny: Bibliogr. 8 poz., wykr.

Twórcy

autor

Madura, H.

• Institute of Optoelectronics, Military University of Technology, 2 Kaliskiego Str., 00-908 Warsaw, Poland

autor

Kołodziejczyk, M.

• Institute of Optoelectronics, Military University of Technology, 2 Kaliskiego Str., 00-908 Warsaw, Poland,

Bibliografia

• 1. H. Madura and T. Piątkowski, “Emissivity compensation method in double band pyrometry”, Infrared Physics & Technology 46, 185-189 (2004).
• 2. H. Madura, T. Piątkowski, and E. Powiada, “Multispectral precise pyrometer for measurement of seawater surface temperature”, Infrared Physics & Technology 46, 69-73 (2004).
• 3. C.E. Everest and G.K. Walker, “Infrared temperature monitoring apparatus having means for sky radiation compensation”, United States Patent, No. 4 420 265, 1983.
• 4. K. Seyrafi and S.A. Hovanessian, Introduction to Electro-optical Imaging and Tracking Systems, pp. 56-61, Artech House, Boston, London, 1993.
• 5. J.G. Zissis, Sources of Radiation 1, in The Infrared & Electro-Optical Systems Handbook, p. 151, SPIE Press, Bellingham, 1993.
• 6. Standard solar constant and zero air mass solar spectral irradiance tables. Standard E490-00. American Society for Testing and Materials, West Conshohocken, PA, 2000.
• 7. C.A. Gueymard, ”The sun's total and spectral irradiance for solar energy application and solar radiation models”, Solar Energy 76, 425 (2004).
• 8. ThermaCAM™ Researcher, User's Manual, FLIR Systems.