近红外光谱吸收的非接触酒精浓度检测系统

打开文本图片集

【Abstract】Based on the Lambert-Beer law of NIR spectral absorption，this study designs a non-contact，low-cost， non-destructive，and high-precision alcohol concentration measurement system.The proposed system comprises four components：an optical path module，a circuit design module，data algorithm processng，and 3D-printed modeling. Furthermore，tovalidate theaccuracyof the proposed method，the measurement results were compared with those obtainedusingadensitymeter.Experimentalresultsdemonstratethat，intheinfraredband，therelativeerorbetween thedesigned instrumentand thedensitymeterislessthan 2% ，confirmingthereliabilityofthesystem.Comparedwith traditionalmethods，tisolutioneablesapid，on-destructive，andotinuousdetection，akingitsitablefororable dailymeasurementsand industrial applications.

【Key words】alcohol; non-contact measurement; near infrared spectroscopy; concentration measurement

[中图分类号]TN216 [文献标识码]A

[文章编号]1674-3229（2025）03-0097-05

0 引言

随着白酒行业的不断发展，酒精浓度快速准确测定成为白酒生产过程中的一项关键工作。（剩余4498字）