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Comments

Author Comment Last activity Moderation
thangvu "I have no solution for multi-wavelength source like a spectrometer. I will try with another wavelength. " | Read more » almost 2 years ago
thangvu "Thanks for your answer, I have the standard solution of 5-10-20..70 pt / cb (I borrowed), according to the standard method, when measured at 430nm,..." | Read more » almost 2 years ago
thangvu "My idea is to use a 430nm wavelength to measure the color of the water, so, I use a 430nm (+ - 10nm) led as the source, but the 430nm led seems to ..." | Read more » almost 2 years ago
thangvu "sorry for saying it is unclear, with wastewater, the color of the water partly assesses the level of water pollution. " | Read more » almost 2 years ago
thangvu "Thanks for your helpful answers " | Read more » almost 2 years ago