Non-contact component detection system and method for powder

Abstract

The invention provides a non-contact component detection system and a non-contact component detection method for powder. The system comprises a lens hood, a laser line light source, a two-dimensional translation stage, beam splitting optical filters, a lens, a high-pass optical filter, a Raman spectrometer, a CCD (charge-coupled device) and a processor, wherein the lens hood is used for ensuring a dark detection environment; the laser line light source is used for emitting linear laser; the two-dimensional translation stage is used for placing a sample, and moving the sample in a two-dimensional direction to realize dynamic linear laser scanning on the whole surface of the sample; the beam splitting optical fiber is used for reflecting the linear laser to the surface of the laser, and transmitting signal light from the surface of the sample to the lens; the lens is used for collecting the dynamically and linearly scanned signal light from the surface of the sample; the high-pass optical filter is used for performing high-pass filtration on the signal light; the Raman spectrometer is used for receiving the signal light obtained by the high-pass filtration to obtain a light signal; the CCD is connected with the Raman spectrometer, and is used for converting the light signal into an electrical signal, and transmitting the electrical signal to the processor; the processor is used for analyzing components of the sample according to the spectral information of the whole sample. According to the system and the method, the powder can be rapidly and nondestructively detected.

Description

technical field

[0001] The invention relates to the field of safety detection, in particular to a non-contact component detection system and method for powder. Background technique

[0002] Powdered food is one of the requisite food types in the lives of Chinese residents, especially in the northwest of my country, powdered food such as flour is the main source of food. However, with the continuous improvement of living standards, the food sources of urban residents mainly focus on purchasing in the market. In recent years, substandard products and adulterated products have been increasing day by day in my country's market, and these products have seriously affected and threatened the health of consumers. Compared with the adulteration of flour, the milk powder for infants and the elderly market has serious adulteration problems in the Chinese market. These adulterated harmful ingredients have seriously threatened the health of infants and the elderly.

[0003] At present,...

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