Abstract

A spectral liquid signature analyzer system including a miniature fiber-optic spectrometer is described in this paper. Through the combination of the spectral method and liquid signature analysis technology, the analytical function of the liquid signature analyzer will be improved obviously. With this spectral liquid signature analyzer system, the physical, chemical, and mechanical characteristics of the tested sample can be obtained at the same time. In detail, that is the light intensity signal, the equivalent drop volume signal, and the spectroscopic data from the miniature spectrometer. And after merging the information data, the three-dimensional fingerprint that is unique to the liquid sample is attainable. This three-dimensional fingerprint includes the full information we gain from the experiment, and it provides visualized differences in various samples. The application of spectral analysis makes it possible for further research into the chemical compositions of liquid samples and supplies discrimination evidence to different liquids. Therefore, the liquid signature analyzer can be used in more fields related to liquid.

© 2011 Optical Society of America

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