Rapid detection equipment for explosive and detection method thereof

A technology of detection equipment and detection method, which is applied in the field of spectral detection, can solve problems such as temperature rise, explosive samples, and inability to obtain sample material composition information, and achieve the effect of high transmittance and reduced laser power density

Pending Publication Date: 2019-12-13
立穹(上海)光电科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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,

Method used

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  • Rapid detection equipment for explosive and detection method thereof
  • Rapid detection equipment for explosive and detection method thereof
  • Rapid detection equipment for explosive and detection method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A detection method for explosives rapid detection equipment, comprising the following steps:

[0027] (1) Take a thin fiber product and wet it with liquid;

[0028] (2) Install the wetted thin fiber product at the working position on the surface of the Raman spectrometer probe, so that the laser energy emitted by the Raman spectrometer probe can be focused on the thin fiber product;

[0029] (3) Place the sample to be tested on the side of the thin fiber product facing away from the laser;

[0030] (4) Operate the Raman spectrometer for Raman spectrum detection, and obtain the Raman spectrum information of the mixture of the sample and accessory materials within 1-10 seconds;

[0031] (5) Through analysis, the Raman spectrum of the explosive detection accessory material itself is deducted from the measured Raman spectrum to obtain the Raman spectrum information of the sample; and then the material composition information of the sample is obtained through database compa...

Embodiment 2

[0035] Embodiment two, such as Figure 1-3 shown.

[0036] The invention also discloses a rapid detection device for explosives, which includes a Raman spectrometer 1. A detection probe 2 is installed on the Raman spectrometer 1. A fiber product 3 is installed on the surface of the detection end of the detection probe 2. The light emitted by the detection probe 2 is Focus on fiber product 3. When in use, the sample to be tested is placed on the side of the fiber product 3 facing away from the detection probe 2, the Raman spectrometer 1 is turned on for Raman spectrum detection, and when the laser light emitted by the detection probe 2 passes through the fiber product 3, the original laser It will be scattered naturally, thereby reducing the laser power density at the local position of the sample surface, so as to prevent the sample from being detonated due to the temperature rise of the local position of the sample surface.

[0037] Further, the surface of the fiber product ...

Embodiment 3

[0038] Embodiment 3, based on the further improvement of Embodiment 2, the detection probe 2 is connected to the Raman spectrometer 1 through the optical fiber 4 . Therefore, when encountering a working environment where the Raman spectrometer 1 is inconvenient to be inserted, the detection probe 2 can be inserted only, and the Raman spectrum information detected by the detection probe 2 will be transmitted to the Raman spectrometer 1 through the optical fiber 4, Analyze the Raman spectrum information of the samples.

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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 ...

Claims

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Application Information

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IPC IPC(8): G01N21/65
CPCG01N21/658
Inventor 王宏赵恒许春王亮
Owner 立穹(上海)光电科技有限公司
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