The invention relates to a novel
alcohol degree detection method and apparatus, especially relates to an detection method and apparatus based on a color sensitive material, wherein the detection method and apparatus are used to detect the
alcohol degree during the
fermentation process in real time, and belongs to the fields of fermented product
raw material utilization and
quality control. The apparatus comprises an upper computer, three CCD cameras, a LED
integrating sphere light source, a base, a gas
reaction chamber, an air inlet, an air outlet, a
vacuum pump, a gas collecting probe with a special filter screen, and a temperature sensor. After the gas collected by the gas colleting probe reaches the gas
reaction chamber, the gas reacts with the color sensitive material sensor arrays, which are adhered on the
polyvinylidene difluoride membrane in the array area of a gas sensor; the color sensitive material is sensitive to
alcohol, and thus the alcohol degree can be determined by watching the color change after the color sensitive material reacts with
ethanol. The provided method and apparatus has the advantages that the operation is simple and convenient, the method is intelligent; the apparatus is simplified and is convenient to move; at the same time the detection
system cost is reduced; and furthermore, the provided apparatus can be used to detect liquid alcohol and semi-
solid alcohol.