Visual Refractometer Digitalizing Based on Smartphone for Quantitative Analysis of Liquid

Based on Android smart phone application softwares, we use visual refractometer with a single probe. Using digital image processing technology, the visual refractometer is digitized to facilitate data processing and intelligence sharing and meet the quick concentrations measurement of dif- ferent liquid substances. Taking sugar, salt and ethanol concentrations measurement as example, we achieve a rapid analysis of pure liquor's concentration.