The mathematics model for quantitative analysis was developed by using transmission technology with distilled water background and calibrating with the partial least square (PLS) algorithm.

• 以蒸馏水为背景，利用傅立叶变换近红外光谱透射法直接对葡萄酒样液进行测定，建立了葡萄酒酒精度定量分析模型。