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Measurement of the UV radiation flux

Author: WangZhen
Tutor: MouTongSheng
School: Zhejiang University
Course: Optical Engineering
Keywords: Radiation flux Integrating sphere Variable-angle radiometric Spectral response coefficients
CLC: TP274
Type: Master's thesis
Year: 2006
Downloads: 221
Quote: 1
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Abstract


More and more attention has been paid in recent years with the biological effects of UV light source, and its assessment is also important. As an important indicator of its evaluation - the total radiation flux, naturally highly valued. This article is based on the purpose of this evaluation. Two different sets of radiation measurement system, namely integrating sphere radiometric measurement systems and variable-angle radiometric measuring system is described and analyzed. Wherein, for the the integrating sphere radiometric measurement system we know, in order to obtain the desired measurement results, firstly, a radiation flux standard lamp. Only UV Fook illuminance standard lamp case, we find a spectral response coefficient docking, thereby extending the visible region of the instrument's spectral response coefficient to the ultraviolet region. Of course, such as the coating of the integrating sphere and the absorption coefficient, we were also to find appropriate solutions. Finally, the ideal measurement results. Not eliminate the standard lamp and the lamp to be measured relative spectral power distribution and the spatial distribution generated by different the integrating sphere radiometric measurement system in the process of measuring UV radiation fluxes, we designed a set of variable-angle radiometric measurement system. The most important work for this set of measurement system is to design a spatial rotation of the rotary table can be achieved by comparing our selection of the light source movement design (see Appendix 2). Which measure the total space stray light, system calibration, and detector cosine correction we have found the ideal solution, last but not ideal measurement results. In the last article in the two systems, a detailed analysis of its advantages and disadvantages, and both horizontal contrast, draw angle-radiation measurement system is superior to the conclusions and reasons of the integrating sphere measurement system. The biggest feature is as compared with many similar article, the the article just generalities introduction ultraviolet radiation measurement principle, and described in detail two different sets of measurement systems, and in the final experiment data measured. Coupled, we also find a new way to improve cosine corrected and the use of spectral response coefficients docking, extends to the visible region of the instrument's spectral response coefficients ultraviolet region.

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