The Warning Measurement System of Erythema Time with Ultra Violet Photodevice and Properties of Biological Filtration Materials

Abstract:

This proposal is directed toward the development of innovative high-efficiency UV photodevice based on the wide bandgap III-nitride (GaN-based) semiconductors for reliable operation at the solar radiation action spectrum for human. This paper uses the UVM-30 photodetector to measure the UVI and the max exposure time (Erythema Time) in sun real time with a simple linear function relationship circuit, and introduces the function, performance, system configuration as well as the partial flow chart of the flowmeter.

• Periodical: Advanced Materials Research (Volume 643)
• Pages: 9-12
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.643.9
• Online since: January 2013
• Authors: Bin Li, Jin Wei Liu, Hao Luo, Chao Yu Feng, Xiao Xiao Duan
• Keywords: III-Nitride Semiconductors, Max Exposure Time, Measuring Flow Chart, Solar Radiation

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