Hyperspectral imaging based non-destructive quantitative testing device for mixture powder and method

Abstract

The invention discloses a hyperspectral imaging based non-destructive quantitative testing device for mixture powder and a method. The hyperspectral imaging based non-destructive quantitative testing device comprises an excitation module, a scanning module, a signal acquisition module and a control drive module. Sample stability and system miniaturization during scanning detection are guaranteed by combining a two-dimensional galvanometer and a field sweeping lens, and the whole device is modular and high in integration level and resolution; incident light rays in different positions focus to the same plane during scanning, and high-resolution sharp images are acquired; the device has high degree of freedom, near-infrared and infrared hyperspectral imaging or fluorescence and Raman hyperspectral imaging can be realized by simply replacing a light source and switching between a dichroscope and a half-transparent and half-reflecting mirror; the testing method is particularly applicable to stable, non-destructive and accurate testing of a mixture powder sample.

Description

technical field [0001] The present invention relates to the technical fields of machine vision and hyperspectral imaging, and more particularly to a stable and non-destructive quantitative detection device and method for mixed powder based on point scanning hyperspectral imaging. Background technique [0002] Hyperspectral imaging technology combines the advantages of imaging technology to obtain spatial data information of objects and spectral technology to obtain material spectral characteristics. It also contains image information and spectral information, and can realize comprehensive detection of internal quality and shape characteristics of objects. The traditional hyperspectral imaging technology realizes the scanning detection of the sample by moving the sample platform. The obvious disadvantage of this method is that the movement of the worktable will cause the instability of the measured sample on it, especially for the mixture powder sample. when testing. [0003...

AI Technical Summary

Problems solved by technology

However, the above application is only for a specific substance. When detecting a mixed powder sample of two or more substances, the spectral signals between adjacent powders will affect each other. The test requires high stability of the sample, and the detection has a certain degree of stability. difficulty

After retrieval, so far there is no domestic report on the use of hyperspectral imaging technology for stable and accurate detection of mixture powders

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