CN211061423U - Explosive rapid detection equipment - Google Patents
Explosive rapid detection equipment Download PDFInfo
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- CN211061423U CN211061423U CN201921595452.3U CN201921595452U CN211061423U CN 211061423 U CN211061423 U CN 211061423U CN 201921595452 U CN201921595452 U CN 201921595452U CN 211061423 U CN211061423 U CN 211061423U
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Abstract
The equipment for rapidly detecting the explosives comprises a Raman spectrometer, wherein a detection probe is arranged on the Raman spectrometer, a fiber product is arranged on the surface of the detection end of the detection probe, and light emitted by the detection probe is focused on the fiber product. The utility model overcomes the defects of the prior art, and through a large number of micro-hole structures of the fiber product, when laser passes through the fiber product, the original laser can be naturally scattered, thereby reducing the laser power density of the local position on the surface of the sample; meanwhile, the laser spots are not scattered to be large, and the Raman signals of the sample are effectively excited under a certain laser power density.
Description
Technical Field
The utility model relates to a spectral detection technical field, concretely relates to explosive short-term test equipment.
Background
The raman spectrum detection technology is a high-efficiency spectrum detection technology which is rapidly developed in recent years. In the raman spectrum detection, raman scattered light of a sample is excited by laser, the raman scattered light is subjected to spectrum analysis, and information such as the composition and content of a substance to be detected is obtained through database contrast analysis. Because the Raman spectrum detection technology does not need to carry out sample pretreatment when in use, can quickly obtain the component information of a sample within a few seconds, and has high accuracy, the Raman spectrum detection technology is increasingly applied to the fields of food safety, drug detection, jewelry identification, environmental monitoring and the like. With the miniaturization and the improvement of integration of devices, the volume of the raman spectrum detection equipment is continuously reduced. A number of portable and hand-held compact raman spectroscopy detectors are currently on the market. The small-sized Raman spectrum detector is simple to operate, can quickly and accurately detect and identify suspicious substances on a detection site, and greatly improves the detection efficiency.
When the small-sized Raman spectrum detector detects explosives, although the component information of the explosives can be obtained within a few seconds, when the laser emitted by the small-sized Raman spectrum detector is irradiated on the surface of the explosives, the temperature of the local position of the surface of the sample is increased within a short time, and the sample is easy to detonate. If some means are adopted to reduce the laser power density on the surface of the sample, although the sample may not be detonated, the Raman excitation efficiency and the collection efficiency of the sample are greatly reduced, so that accurate material composition information of the sample cannot be obtained.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a rapid explosive detection device, which overcomes the defects of the prior art, and through a large number of tiny hole structures of a fiber product, when laser passes through the fiber product, the original laser can be naturally scattered, thereby reducing the laser power density of the local position on the surface of a sample; meanwhile, the laser spots are not scattered to be large, and the Raman signals of the sample are effectively excited under a certain laser power density.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
the equipment for rapidly detecting the explosives comprises a Raman spectrometer, wherein a detection probe is arranged on the Raman spectrometer, a fiber product is arranged on the surface of the detection end of the detection probe, and light emitted by the detection probe is focused on the fiber product.
Preferably, the detection probe is connected with the Raman spectrometer through an optical cable.
Preferably, the surface of the fibrous article is stained with water or a liquid raman enhancing agent.
Preferably, the surface of the detection probe is provided with a positioning column, the edge of the fiber product is provided with a positioning hole, and the positioning column is matched with the positioning hole.
Preferably, the positioning column includes lower fixed column and last limiting column, lower fixed column sets up on the test probe surface, through pivot swing joint between lower fixed column and the last limiting column, the pivot setting is in the one side of lower fixed column and the off-center of last limiting column, just the pivot top is provided with the spacer, the spacer sets up on last limiting column upper surface.
The utility model provides an explosive rapid detection equipment. The method has the following beneficial effects: through a large number of tiny hole structures of the fiber product, original laser can be naturally scattered when the laser passes through the fiber product, so that the laser power density of a local position on the surface of a sample is reduced; meanwhile, laser spots are not scattered to be large, so that Raman signals of the sample are effectively excited under a certain laser power density; and because the fiber product is of a thin structure rather than a thick structure, the fiber product is ensured to have higher transmittance to laser, so that the laser can penetrate through the fiber product to irradiate a sample to a greater extent.
Drawings
In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings used in the description of the prior art will be briefly described below.
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a plan view of a second embodiment of the present invention;
fig. 3 is a sectional view of the positioning column according to the fourth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention will be combined below to clearly and completely describe the technical solutions of the present invention.
First embodiment, as shown in fig. 1, an explosive rapid detection apparatus includes a raman spectrometer 1, a detection probe 2 is mounted on the raman spectrometer 1, a fiber product 3 is mounted on a detection end surface of the detection probe 2, and light emitted by the detection probe 2 is focused on the fiber product 3.
When the fiber product detection device is used, firstly, the fiber product 3 is wetted by liquid, then the wetted fiber product 3 is arranged at the working position on the surface of the detection probe 2 of the Raman spectrometer 1, so that laser emitted by the detection probe 2 can be focused on the fiber product 3, and then a sample to be detected is placed on one side of the fiber product 3, which is back to the laser; open raman spectroscopy appearance 1 and carry out the raman spectroscopy and detect, acquire the raman spectroscopy information that sample and accessory material mix in 1-10 seconds, because the utility model discloses the raman spectroscopy signal that well raman spectroscopy appearance 1 directly obtained is the mixed signal that contains the raman signal of sample raman signal and explosive detection accessory, consequently need deduct the detection accessory raman signal in the mixed signal through relevant algorithm software, obtains the raman spectroscopy signal of sample accuracy, carries out accurate material composition analysis to the sample, compares through the database, obtains the material composition information of sample.
The utility model utilizes a large number of micro-hole structures of the fiber product 3, when the laser passes through the fiber product 3, the original laser can be naturally scattered, thereby reducing the laser power density of the local position of the surface of the sample; meanwhile, laser spots are not scattered to be large, so that Raman signals of the sample are effectively excited under a certain laser power density; and because the fiber product 3 is provided with a thin structure instead of a thick structure, the fiber product 3 is ensured to have a high transmittance to the laser, so that the laser can penetrate through the fiber product 3 to a large extent and irradiate on a sample.
And the fibrous product 3 may be any one of filter paper, rice paper and ordinary a4 paper. The thick fiber product can cause the energy of the laser passing through the fiber product to be weak, so that a Raman signal which is strong enough for a sample cannot be excited; meanwhile, Raman scattered light emitted by the sample cannot penetrate through a thick fiber product, so that a Raman signal of the sample cannot be collected by a probe of a small-sized Raman spectrometer; therefore, by adopting filter paper, rice paper or ordinary A4 paper, the material is convenient to obtain and has a non-thick structure, so that the fiber product 3 has high transmittance to laser, and the laser can penetrate through the fiber product 3 to a large extent to irradiate a sample.
In the second embodiment, as shown in fig. 2, based on a further improvement of the first embodiment, the detection probe 2 is connected to the raman spectrometer 1 through an optical cable 4. Therefore, when the Raman spectrometer 1 is in a working environment where the Raman spectrometer 1 cannot conveniently stretch into the working environment, the detection probe 2 can be stretched into the working environment, Raman spectrum information detected by the detection probe 2 can be transmitted into the Raman spectrometer 1 through the optical cable 4, and Raman spectrum information of a sample is analyzed.
In the third embodiment, based on the further improvement of the first embodiment, the surface of the fiber product 3 is stained with water or a liquid raman enhancing agent. When the thin fiber product is wetted by liquid, even if the explosive placed on the surface of the thin fiber product is irradiated by laser, the temperature is increased to a certain extent, and the heat of the explosive is also absorbed by most of the wet fiber product, so that the explosive is prevented from exploding because the temperature exceeds an explosion point; the liquid is only water relative to the explosive sample with higher purity; when the content of the explosives in the sample is trace, the liquid Raman enhancing reagent can be used, so that the liquid Raman enhancing reagent can effectively enhance Raman signals of trace explosives while cooling the explosive sample, and Raman spectrum detection of the trace explosives is realized.
In the fourth embodiment, as shown in fig. 3, based on the further improvement of the first embodiment, the surface of the detection probe 2 is provided with a positioning column 5, the fiber product 3 is provided with a positioning hole 6 at an edge position, and the positioning column 5 is matched with the positioning hole 6. The positioning column 5 comprises a lower fixing column 51 and an upper limiting column 52, the lower fixing column 51 is arranged on the surface of the detection probe 2, the lower fixing column 51 is movably connected with the upper limiting column 52 through a rotating shaft 53, the rotating shaft 53 is arranged on one side of the lower fixing column 51 and the upper limiting column 52, which are deviated from the center, a positioning sheet 54 is arranged above the rotating shaft 53, the positioning sheet 54 is arranged on the upper surface of the upper limiting column 52, and the upper limiting column 52 can be prevented from falling off from the upper side of the rotating shaft 53 through the positioning sheet 54 when rotating. Thereby when placing fibre product 3, through reference column 5 and locating hole 6 assorted relation, make fibre product 3 can be accurate place on 2 surfaces of test probe, and after placing 2 surfaces of test probe, through rotatory upper limit post 52, make upper limit post 52 and lower fixed column 51 misplace, thereby can carry out spacing fixed to fibre product 3 through upper limit post 52, in order to prevent that fibre product 3 from placing 2 surfaces of test probe, take place to drop when using, and after using, through the effect of pivot 53, will go up limit post 52 and turn back to the position concentric with lower fixed column 51, can take off fibre product 3, and with treating follow-up use.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (5)
1. An explosive rapid detection device, comprising a Raman spectrometer (1), characterized in that: the Raman spectrometer (1) is provided with a detection probe (2), the surface of the detection end of the detection probe (2) is provided with a fiber product (3), and light emitted by the detection probe (2) is focused on the fiber product (3).
2. An explosive rapid detection device according to claim 1, wherein: the detection probe (2) is connected with the Raman spectrometer (1) through an optical cable (4).
3. An explosive rapid detection device according to claim 1, wherein: the surface of the fiber product (3) is stained with water or a liquid Raman enhancing agent.
4. An explosive rapid detection device according to claim 1, wherein: the surface of the detection probe (2) is provided with a positioning column (5), the edge of the fiber product (3) is provided with a positioning hole (6), and the positioning column (5) is matched with the positioning hole (6).
5. An explosive rapid detection device according to claim 4, wherein: the positioning column (5) comprises a lower fixing column (51) and an upper limiting column (52), the lower fixing column (51) is arranged on the surface of the detection probe (2), the lower fixing column (51) is movably connected with the upper limiting column (52) through a rotating shaft (53), the rotating shaft (53) is arranged on one side of the lower fixing column (51) and the upper limiting column (52) deviating from the center, a positioning sheet (54) is arranged above the rotating shaft (53), and the positioning sheet (54) is arranged on the upper surface of the upper limiting column (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921595452.3U CN211061423U (en) | 2019-09-24 | 2019-09-24 | Explosive rapid detection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921595452.3U CN211061423U (en) | 2019-09-24 | 2019-09-24 | Explosive rapid detection equipment |
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| Publication Number | Publication Date |
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| CN211061423U true CN211061423U (en) | 2020-07-21 |
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| CN201921595452.3U Active CN211061423U (en) | 2019-09-24 | 2019-09-24 | Explosive rapid detection equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567939A (en) * | 2019-09-24 | 2019-12-13 | 立穹(上海)光电科技有限公司 | explosive rapid detection equipment and detection method thereof |
| CN110567939B (en) * | 2019-09-24 | 2024-09-27 | 立穹(上海)光电科技有限公司 | Rapid explosive detection equipment and detection method thereof |
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2019
- 2019-09-24 CN CN201921595452.3U patent/CN211061423U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567939A (en) * | 2019-09-24 | 2019-12-13 | 立穹(上海)光电科技有限公司 | explosive rapid detection equipment and detection method thereof |
| CN110567939B (en) * | 2019-09-24 | 2024-09-27 | 立穹(上海)光电科技有限公司 | Rapid explosive detection equipment and detection method thereof |
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