Study On The Micro-Near-Infrared Spectrometer System

Near-infrared spectroscopy is the fastest growing and the most visible spectroscopy technology, especially, the micro-near-infrared spectrometer shows the unique advantages, so the micro-near-infrared spectrometer research has become another hot spot in the world in recent years. Based on the application of non-invasive, rapid, on-site detection to quantitative effective ingredients for food, and with the support of Chongqing scientific and technological project, the micro-near-infrared spectrometer system was studied, which is valuable in practical application and science research. This paper is as follows:①The large number of available literature at home and abroad is consulted. Based on application target, the overall plan of the project is constituted.②Near-infrared spectrometer miniaturization is studied. Combined the basic theory of spectrometer, the flat-field holographic concave grating for near-infrared spectrometer is designed by using CODE V. The contradiction between wide spectrum bound and limited spectrum extension is resolved, aberrations are reduced successfully, spectrum information are utilized fully.③Basis on the optical system, the micro-structural is designed. System alignment, demarcation, spectrometer examination are researched, and spectrometer stability, reliability, duplication and so on are studied.④A micro-near-infrared spectrometer prototype is developed successfully. Its operating wavelength is 850-1700nm, optical resolution is less 10nm, and main technical parameters have achieved the level of the congener foreign products.⑤The near-infrared spectral data analysis software is developed, quantitative analysis application are researched, the quantitative tests for glucose water solution and ethanol water solution are completed, and the corresponding high accuracy analysis model are established.