The ultraviolet (UV) light at 222nm can be absorbed by microbial DNA and RNA, changing their structures and achieving the effect of sterilization. Unlike commonly used UVC light, 222nm UV light is harmless to humans, making it a crucial role in disinfection and sterilization. Consequently, calibration of 222nm UV radiometers is also of great significance. In this paper, according to the characteristics of KrCl excimer lamp, the effects of different types of filters on the spectrum of sterilization lamp are studied, as well as the calibration method of UV radiometer, and the measurement uncertainty is evaluated.
Ultraviolet radiant exposure meter, also known as UV energy meter, is widely used in a multitude of fields, such as sterilization, climate change, solar photovoltaic, material aging, medical health, UV curing, lithography and so on. Ultraviolet exposure radiation meter is a commonly used instrument to measure ultraviolet radiation. Due to the particularity of the structure and the complexity of the influencing factors, the measurement error of commercial instruments is very high. Commonly used ultraviolet light sources include mercury lamps, LED light sources, metal halogen lamps and so on. This paper will study the calibration method of the ultraviolet exposure radiation meter, and evaluate the measurement uncertainty.
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