CN204594884U - Based on modular integrated Handheld Raman spectrum detection instrument - Google Patents
Based on modular integrated Handheld Raman spectrum detection instrument Download PDFInfo
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- CN204594884U CN204594884U CN201520208433.6U CN201520208433U CN204594884U CN 204594884 U CN204594884 U CN 204594884U CN 201520208433 U CN201520208433 U CN 201520208433U CN 204594884 U CN204594884 U CN 204594884U
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Abstract
The utility model discloses a kind of based on modular integrated Handheld Raman spectrum detection instrument, comprise laser module and detector body, be provided with Raman signal acquisition module and spectra collection module in described detector body, described Raman signal acquisition module comprises optical fiber, collimation lens, laser filter plate, dichroic mirror, Raman lens, the first steering reflection mirror, contracting bundle lens combination; Described spectra collection module comprises notch filter sheet, cylindrical mirror, the second steering reflection mirror, slit, collimating mirror, grating, imaging mirror, light enhancing cylindrical mirror, ccd detector.The utility model has that accuracy in detection is high, quick light, compact structure, cost are low, range of application is wider advantage.
Description
Technical field
The utility model relates to toxic chemical and Explosive hazardous material pick-up unit, is specifically related to a kind of based on modular integrated Handheld Raman spectrum detection instrument.
Background technology
In recent years, along with socioeconomic prosperity and development, improving constantly of people's lives quality, interpersonal interchange is day by day close, makes Public Transport Trade obtain great development, as the public transport such as aircraft, train, subway have had significant progress.But along with the development of society, lawless person and terrorist activities are also more and more rampant and more hidden, and hit difficulty and progressively increase, the harm brought society and the people is also increasing.Because public transport art closeness is large, mobility strong, once there is terrorist incident, bring immeasurable loss to people's life's property, cause severe negative effect to society simultaneously.As nineteen ninety-five Tokyo Metro Schain poison gas case, Moscow metro TNT explosive charge case, Beijing Capital Airport case of explosions in 2013 in 2004 etc.All bring huge test to public safety, bring huge negative effect to society simultaneously.Therefore detect various toxic chemical and Explosive hazardous material at public safety field, every country all gives great concern, and is badly in need of a kind of portable detector that can detect toxic chemical and Explosive hazardous material fast.
In people's daily life, drugs are day by day obvious to the harm of the mankind, therefore to offender's system, buy to resell, sell, transport, the struggle of consume illegal drugs also continuing to increase.Due to prosperity and the modern communications instrument miscellaneous of Modern Traffic industry, make the criminal activity of offender more hidden, but screen in all kinds of drugs process, public security and People's Armed Police personnel but use the method after land, efficiency is very low, or in examination process, there is various deficiency, be badly in need of a kind of portable instrumentation of quick detection drugs.In modern war, gas and various explosive are one of most destructive weapons in modern war, often left and right battlefield situation, to belligerent personnel, there is crushing injury, and continuation can be caused to damage.Along with social development, each state is all stepping up to develop all kinds of novel biochemical toxic agent, explosive, and lethality progressively increases.Be applied on battlefield and easily by the nearly kind more than 20 of biochemical weapon agent that terrorist utilizes, be wherein widely used in the Iran-Iraq war of sarin in World War II and twentieth century eighties, cause huge injures and deaths.And the type of explosive is just more, almost in the world, its figure all can be seen in each corner.Since the World War I, all types of explosives seizes the life of countless people.As Afghan suicide case of explosion etc. brings massive losses to people's life and property, bring significant damage to society.In order to toxic chemical in surveyed area and Explosive hazardous material exist situation; give combat troop, public safety department and all kinds of safe examination system and effective detection means is provided; promptly and accurately detect toxic chemical and Explosive hazardous material; for belligerent human life provides effective guarantee, for people's lives and properties provide protection.Raman spectrometer as a kind of malicious chemicals of specialty and Explosive hazardous material together, detects for malicious chemicals and Explosive hazardous material and has started to be applied at present.
But traditional Raman spectrometer generally comprises very complicated structure, but due to its inner structure very complicated, make signals collecting efficiency and coupling efficiency low, cause that accuracy in detection is not high, bulky, cost is high, range of application is limited.Therefore, how to realize a kind of novel portable Raman spectrometer of fast light, compact structure, become key technical problem urgently to be resolved hurrily.
Utility model content
The technical problems to be solved in the utility model is: for the defect of prior art, provide a kind of accuracy in detection high, fast light, compact structure, cost are low, range of application is wider based on modular integrated Handheld Raman spectrum detection instrument.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of based on modular integrated Handheld Raman spectrum detection instrument, comprise laser module and detector body, be provided with Raman signal acquisition module and spectra collection module in described detector body, described Raman signal acquisition module comprises optical fiber, collimation lens, laser filter plate, dichroic mirror, Raman lens, the first steering reflection mirror, contracting bundle lens combination, described spectra collection module comprises notch filter sheet, cylindrical mirror, the second steering reflection mirror, slit, collimating mirror, grating, imaging mirror, light enhancing cylindrical mirror, ccd detector, the light that described laser module sends is collimated collimated after optical fiber, laser after collimation is by laser filter plate filtering parasitic light and by dichroic mirror reflects on Raman lens, and described Raman lens are beaten on sample after laser is converged to a point, sample is produced Raman signal after laser excitation and is collected by Raman lens, Raman signal after collection reflexes to contract by dichroic mirror and by the first steering reflection mirror restraints lens combination, the scattered light of laser is filtered out through notch filter sheet by the Raman signal after contracting bundle lens combination contracting bundle, projected on slit by cylindrical mirror through the second steering reflection mirror subsequently, get on grating after the Raman signal light of slit is collimated catoptron collimation, and pressed wavelength light splitting by grating, be imaged catoptron by the Raman signal light after grating beam splitting and strengthen imagery of cylindrical mirror on ccd detector through light.
Also be provided with Raman between described Raman lens and the surface of sample and strengthen substrate.
Described detector body is provided with the probe for installing Raman lens, described probe is provided with mounting box, described mounting box is provided with circular mounting hole, and the sidewall of described circular mounting hole is provided with positioning screw, mutually vertical between described positioning screw and circular mounting hole, described probe is inserted in circular mounting hole and is fixed by positioning screw, and described mounting box is provided with jack, described jack runs through mounting box and is communicated with circular mounting hole, and described Raman strengthens substrate and is inserted in jack.
The utility model has following advantage based on modular integrated Handheld Raman spectrum detection instrument: the utility model based on modular integrated Handheld Raman spectrum detection instrument based on Raman signal acquisition module and spectra collection module two modules, adopt modularization, Integration Design, the signals collecting efficiency of prior art and the low problem of coupling efficiency is solved by integrated design, drastically increase Raman signal efficiency, there is cost low, low in energy consumption, volume is little, easy to carry, the advantage that detection efficiency is high, can high-sensitivity detection toxic chemical and Explosive hazardous material in real time, and the title of output detections material or doubtful thing, can carry with at crowded place, battlefield or Code in Hazardous Special Locations detect toxic chemical and Explosive hazardous material, thus effectively detect dangerous substance information, thus take counter-measure, the needs such as the densely populated place districts such as station, airport and subway, operation place, anti-terrorism drug law enforcement can be met, be applicable to multiple occasion and detect in real time.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the main TV structure schematic diagram of mounting box in the utility model embodiment.
Fig. 3 is the side-looking structural representation of mounting box in the utility model embodiment.
Marginal data: 1, laser module; 2, detector body; 21, Raman signal acquisition module; 211, optical fiber; 212, collimation lens; 213, laser filter plate; 214, dichroic mirror; 215, Raman lens; 216, the first steering reflection mirror; 217, contracting bundle lens combination; 22, spectra collection module; 221, notch filter sheet; 222, cylindrical mirror; 223, the second steering reflection mirror; 224, slit; 225, collimating mirror; 226, grating; 227, imaging mirror; 228, light strengthens cylindrical mirror; 229, ccd detector; 3, sample; 4, Raman strengthens substrate; 5, mounting box; 51, circular mounting hole; 52, positioning screw; 53, jack.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, to make advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus more explicit defining is made to protection domain of the present utility model.
As shown in Figure 1, the present embodiment comprises laser module 1 and detector body 2 based on modular integrated Handheld Raman spectrum detection instrument, be provided with Raman signal acquisition module 21 and spectra collection module 22 in detector body 2, Raman signal acquisition module 21 comprises optical fiber 211, collimation lens 212, laser filter plate 213, dichroic mirror 214, Raman lens 215, first steering reflection mirror 216, contracting bundle lens combination 217, spectra collection module 22 comprises notch filter sheet 221, cylindrical mirror 222, second steering reflection mirror 223, slit 224, collimating mirror 225, grating 226, imaging mirror 227, light enhancing cylindrical mirror 228, ccd detector 229, the light that laser module 1 sends is collimated lens 212 and collimates after optical fiber 211, laser after collimation is by laser filter plate 213 filtering parasitic light and reflexed on Raman lens 215 by dichroic mirror 214, and Raman lens 215 are beaten on sample 3 after laser is converged to a point, sample 3 is produced Raman signal after laser excitation and is collected by Raman lens 215, Raman signal after collection reflexes to contract by dichroic mirror 214 and by the first steering reflection mirror 216 restraints lens combination 217, by contracting bundle lens combination 217 contract bundle after Raman signal through notch filter sheet 221, the scattered light of laser is filtered out, projected on slit 224 by cylindrical mirror 222 through the second steering reflection mirror 223 subsequently, get on grating 226 after the Raman signal light of slit 224 is collimated catoptron 225 collimation, and pressed wavelength light splitting by grating 226, be imaged catoptron 227 by the Raman signal light after grating 226 light splitting to be imaged on ccd detector 229 through light enhancing cylindrical mirror 228.In the present embodiment, collimation lens 212, laser filter plate 213, dichroic mirror 214, Raman lens 215, first steering reflection mirror 216, contracting bundle lens combination 217, notch filter sheet 221, cylindrical mirror 222, second steering reflection mirror 223, slit 224, collimating mirror 225, grating 226, imaging mirror 227, light strengthen cylindrical mirror 228 and are high-accuracy optical device, above-mentioned optical device all adopts miniaturization, the preparation of high light transmissive material, effectively can improve optical signalling antijamming capability and reduce the loss of signal.
In the present embodiment, be also provided with Raman between the surface of Raman lens 215 and sample 3 and strengthen substrate 4.Sample 3 can be strengthened by Raman enhancing substrate 4 and be produced Raman signal by after laser excitation, make detection sensitivity higher.
In the present embodiment, detector body 2 is provided with the probe for installing Raman lens 215, probe is provided with mounting box 5, as shown in Figures 2 and 3, mounting box 5 is provided with circular mounting hole 51, and the sidewall of circular mounting hole 51 is provided with positioning screw 52, mutually vertical between positioning screw 52 and circular mounting hole 51, probe is inserted in circular mounting hole 51 and is fixed by positioning screw 52, mounting box 5 is provided with jack 53, jack 53 runs through mounting box 5 and is communicated with circular mounting hole 51, and Raman strengthens substrate 4 and is inserted in jack 53.Because the probe on detector body 2 is connected with mounting box 5 by circular mounting hole 51, and Raman enhancing substrate 4 is inserted in jack 53, therefore, it is possible to rotate mounting box 5 easily and regulate the degree of depth coordinated, Raman can also be regulated to strengthen the insertion degree of substrate 4 in jack 53, thus Raman enhancing substrate 4 can adjust to the distance of probe in front, rear, left and right in mounting box 5, makes detection more flexible.
In the present embodiment, laser module 1 specifically adopts 785nm laser module, and 785nm laser module comprises double-heterostructure electrical pumping formula semiconductor diode laser and TEC refrigeration, guarantees to detect for a long time.
The present embodiment is as follows based on the principle of work of modular integrated Handheld Raman spectrum detection instrument: regulate Raman enhancing substrate 4 by mounting box 5 in advance and make it aim at the position of sample 3, then the light that laser module 1 sends is collimated lens 212 and collimates after optical fiber 211, laser after collimation is by laser filter plate 213 filtering parasitic light and reflexed on Raman lens 215 by dichroic mirror 214, and Raman lens 215 strengthen substrate 4 dozens on sample 3 by Raman after laser is converged to a point, sample 3 is produced Raman signal after laser excitation and Raman enhancing substrate 4 is collected by Raman lens 215 after strengthening again, Raman signal after collection reflexes to contract by dichroic mirror 214 and by the first steering reflection mirror 216 restraints lens combination 217, by contracting bundle lens combination 217 contract bundle after Raman signal through notch filter sheet 221, the scattered light of laser is filtered out, projected on slit 224 by cylindrical mirror 222 through the second steering reflection mirror 223 subsequently, get on grating 226 after the Raman signal light of slit 224 is collimated catoptron 225 collimation, and pressed wavelength light splitting by grating 226, be imaged catoptron 227 by the Raman signal light after grating 226 light splitting to be imaged on ccd detector 229 through light enhancing cylindrical mirror 228.
The foregoing is only preferred implementation of the present utility model, protection domain of the present utility model is not limited in above-mentioned embodiment, and every technical scheme belonging to the utility model principle all belongs to protection domain of the present utility model.For a person skilled in the art, some improvements and modifications of carrying out under the prerequisite not departing from principle of the present utility model, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. one kind based on modular integrated Handheld Raman spectrum detection instrument, it is characterized in that: comprise laser module (1) and detector body (2), be provided with Raman signal acquisition module (21) and spectra collection module (22) in described detector body (2), described Raman signal acquisition module (21) comprises optical fiber (211), collimation lens (212), laser filter plate (213), dichroic mirror (214), Raman lens (215), the first steering reflection mirror (216), contracting bundle lens combination (217), described spectra collection module (22) comprises notch filter sheet (221), cylindrical mirror (222), second steering reflection mirror (223), slit (224), collimating mirror (225), grating (226), imaging mirror (227), light strengthens cylindrical mirror (228), ccd detector (229), the light that described laser module (1) sends is collimated lens (212) collimation after optical fiber (211), laser after collimation is by laser filter plate (213) filtering parasitic light and reflexed on Raman lens (215) by dichroic mirror (214), described Raman lens (215) are beaten on sample (3) after laser is converged to a point, sample (3) is produced Raman signal after laser excitation and is collected by Raman lens (215), Raman signal after collection reflexes to contract by dichroic mirror (214) and by the first steering reflection mirror (216) restraints lens combination (217), the scattered light of laser is filtered out through notch filter sheet (221) by the Raman signal after contracting bundle lens combination (217) contracting bundle, projected on slit (224) by cylindrical mirror (222) through the second steering reflection mirror (223) subsequently, get on grating (226) after the Raman signal light of slit (224) is collimated catoptron (225) collimation, and by grating (226) by wavelength light splitting, be imaged catoptron (227) by the Raman signal light after grating (226) light splitting to be imaged on ccd detector (229) through light enhancing cylindrical mirror (228).
2. according to claim 1 based on modular integrated Handheld Raman spectrum detection instrument, it is characterized in that: be also provided with Raman between described Raman lens (215) and the surface of sample (3) and strengthen substrate (4).
3. according to claim 2 based on modular integrated Handheld Raman spectrum detection instrument, it is characterized in that: described detector body (2) is provided with the probe for installing Raman lens (215), described probe is provided with mounting box (5), described mounting box (5) is provided with circular mounting hole (51), and the sidewall of described circular mounting hole (51) is provided with positioning screw (52), mutually vertical between described positioning screw (52) and circular mounting hole (51), described probe is inserted in circular mounting hole (51) and is fixed by positioning screw (52), described mounting box (5) is provided with jack (53), described jack (53) runs through mounting box (5) and is communicated with circular mounting hole (51), described Raman strengthens substrate (4) and is inserted in jack (53).
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| CN201520208433.6U CN204594884U (en) | 2015-04-08 | 2015-04-08 | Based on modular integrated Handheld Raman spectrum detection instrument |
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| CN201520208433.6U CN204594884U (en) | 2015-04-08 | 2015-04-08 | Based on modular integrated Handheld Raman spectrum detection instrument |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241864A (en) * | 2015-10-21 | 2016-01-13 | 中国科学院合肥物质科学研究院 | Laser-induce self-assembly method for preparing high-sensitivity optical fiber SERS probe |
| CN106225926A (en) * | 2016-07-15 | 2016-12-14 | 中国科学院重庆绿色智能技术研究院 | A kind of miniaturization laser Raman spectrometer |
| CN106596509A (en) * | 2016-12-29 | 2017-04-26 | 天津大学 | Portable raman-microscratch rapid detector integrated with wireless data transmission function |
| CN107807118A (en) * | 2017-12-13 | 2018-03-16 | 奥谱天成（厦门）光电有限公司 | A kind of handheld Raman spectrometer based on refrigeration mode back lighting type CCD |
| CN108088833A (en) * | 2016-11-22 | 2018-05-29 | 山东格物光电科技有限公司 | Use the Handheld Raman detector of single-mode laser |
| CN109975210A (en) * | 2019-04-28 | 2019-07-05 | 重庆冠雁科技有限公司 | A kind of bare engine module of handheld Raman spectrometer |
| WO2024054154A1 (en) * | 2022-09-06 | 2024-03-14 | Agency For Science, Technology And Research | A hand-held probe for a ramen spectroscopy system and a ramen spectroscopy system |
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2015
- 2015-04-08 CN CN201520208433.6U patent/CN204594884U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241864A (en) * | 2015-10-21 | 2016-01-13 | 中国科学院合肥物质科学研究院 | Laser-induce self-assembly method for preparing high-sensitivity optical fiber SERS probe |
| CN106225926A (en) * | 2016-07-15 | 2016-12-14 | 中国科学院重庆绿色智能技术研究院 | A kind of miniaturization laser Raman spectrometer |
| CN106225926B (en) * | 2016-07-15 | 2017-09-29 | 中国科学院重庆绿色智能技术研究院 | One kind miniaturization laser Raman spectrometer |
| CN108088833A (en) * | 2016-11-22 | 2018-05-29 | 山东格物光电科技有限公司 | Use the Handheld Raman detector of single-mode laser |
| CN106596509A (en) * | 2016-12-29 | 2017-04-26 | 天津大学 | Portable raman-microscratch rapid detector integrated with wireless data transmission function |
| CN107807118A (en) * | 2017-12-13 | 2018-03-16 | 奥谱天成（厦门）光电有限公司 | A kind of handheld Raman spectrometer based on refrigeration mode back lighting type CCD |
| CN109975210A (en) * | 2019-04-28 | 2019-07-05 | 重庆冠雁科技有限公司 | A kind of bare engine module of handheld Raman spectrometer |
| WO2024054154A1 (en) * | 2022-09-06 | 2024-03-14 | Agency For Science, Technology And Research | A hand-held probe for a ramen spectroscopy system and a ramen spectroscopy system |
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