Ultra-portable near-infrared spectroscopy analysis system based on gradient filters
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A technology of near-infrared spectroscopy and gradient filtering, which is applied in the field of near-infrared spectroscopy analysis, can solve the problems of high cost and small volume, and achieve the effects of high cost performance, reduced package size, and reduced calibration complexity
Active Publication Date: 2019-07-30
THE 41ST INST OF CHINA ELECTRONICS TECH GRP
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[0003] For the above applications, miniaturized, portable, and low-cost near-infrared spectral analysis instruments are the development trend. At present, miniaturized near-infrared spectral analysis instruments mainly rely on Czerny-Turner orthogonal grating technology and MEMS (micro-electromechanical system) technology. However, using the above technology, there are problems such as limited volume reduction, high cost, or the need for moving parts such as light sources and gratings.
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[0031] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:
[0032] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
[0033] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations the...
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Abstract
The invention relates to an ultra-portable near-infrared spectral analysis system based on a gradient filter, including a light source, an optical system, a sample component, a spectrum splitting and detector module, and an electronic system; the light source emits near-infrared beams, and the optical system collects The near-infrared light beam is projected on the sample component, and then radiated on the spectral spectroscopic and detector module; the spectral spectroscopic and detector module includes a gradient filter and a detector array, which are used to convert the incident light into electrical The signal is sent to the electronic system, and the electronic system is used for acquiring, sampling, buffering, transmitting, and communicating with the host computer, and at the same time driving and controlling the spectrum splitting and detector module. The invention does not have any moving parts, adopts a gradient filter to realize light splitting, effectively reduces the packaging size of the spectrum analyzer and greatly reduces the spectral crosstalk problem existing in the traditional filter-type spectrometer.
Description
technical field [0001] The invention belongs to the field of near-infrared spectrum analysis, in particular to an ultra-portable near-infrared spectrum analysis system based on a gradient filter. Background technique [0002] With the development of science and technology, spectral analysis technology is more and more applied to many fields, from basic scientific research to industrial and agricultural production, such as food, seasoning, wine, meat, oil, feed protein, etc. Food industry, gasoline, diesel, kerosene and other petrochemical industries, polymer materials and other processing process monitoring and analysis, pharmaceutical industry, paper printing and dyeing industry, forestry, environmental protection, soil analysis, criminal identification of drugs, identification of counterfeit banknotes, etc. In the above applications, cheap near-infrared portable spectral analysis instruments suitable for mass production are an important part, which will directly affect the...
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