光谱液滴分析系统设计

Design of the Spectral Liquid Signature Analyzer

将光谱分析方法引入液滴分析技术中,构建研究被测液体物理和化学特性的光谱液滴分析系统．通过液滴传感器监测被测液体的液滴生长过程,得到光经过液滴作用后的光强变化信息和液滴形成过程中的瞬时体积信息,同时利用微型光谱仪得到被测液体的吸收光谱．综合这3种包含被测液体特性信息的数据,构造液体的3维指纹图,它体现了液体的综合特性,在确定条件下对同种液体是唯一的,可作为研究液体特性和鉴别不同液体的依据．

The spectral analysis is introduced into liquid drop analysis to establish the spectral liquid signature analyzer. Then the physical and chemical characteristics of liquid can be researched simultaneously. With the spectral liquid signature analyzer the drop growth process of the tested liquid is monitored through the liquid drop sensor, and the intensity signal after the actions inside the liquid drop as well as the instantaneous volume signal of the liquid drop are gained. At the same time the absorption spectrum of liquid is obtained with the miniature spectrometer. By integrating the three kinds of information we can obtain three-dimensional liquid fingerprint containing the combined characteristics of liquid, which is unique for each kind of liquid under certain conditions and thereby can be used as the evidence in liquid property investigation and discrimination of different liquids.