Rapid detection equipment for explosive and detection method thereof

Abstract

The invention provides rapid detection equipment for an explosive. The equipment comprises a Raman spectrometer, a detection probe is installed on the Raman spectrometer, a fiber product is installedon a surface of a detection end of the detection probe, and light emitted by the detection probe is focused on the fiber product. The detection method comprises the following steps of placing a to-be-detected sample on one side of the fiber product opposite to the detection probe, starting the Raman spectrometer to perform Raman spectrum detection so that original laser can be naturally scatteredwhen the laser emitted by the detection probe passes through the fiber product, and therefore, the laser power density of a local position on a surface of the sample is reduced. According to the invention, the defects of the prior art are overcome, the original laser can be naturally scattered when the laser passes through the fiber product through a large number of tiny hole structures of the fiber product so that the laser power density of the local position on the surface of the sample is reduced, and meanwhile, laser spots cannot be dispersed to be particularly large, and so that Raman signals of the sample are effectively excited under certain laser power density.

Description

technical field [0001] The invention relates to the technical field of spectrum detection, in particular to a rapid detection device for explosives and a detection method thereof. Background technique [0002] Raman spectroscopy detection technology is an efficient spectral detection technology that has been developed rapidly in recent years. Raman spectrum detection uses laser to excite the Raman scattered light of the sample, and performs spectral analysis on the Raman scattered light, and obtains the composition and content of the measured substance through database comparison and analysis. Since the Raman spectroscopy detection technology does not require sample pretreatment when it is used, the composition information of the sample can be quickly obtained within a few seconds, and it has high accuracy. Therefore, the Raman spectroscopy detection technology is widely used in food safety, drug testing, Drug detection, jewelry identification, environmental monitoring and ...

AI Technical Summary

Problems solved by technology

[0003] When the small Raman spectrometer detects explosives, although the composition information of the explosives can be obtained within a few seconds, when the laser emitted by the small Raman spectrometer is irradiated on the surface of the explosive, it will make the sample The temperature at local locations on the surface rises in a short period of time, which is easy to detonate the sample

However, if some means are used to reduce the laser power density on the surface of the sample, although it is possible not to detonate the sample, it will greatly reduce the Raman excitation efficiency and collection efficiency of the sample, so that accurate material composition information of the sample cannot be obtained.

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