CN203324165U - Multi-channel pollutant rapid fluorescence detector - Google Patents
Multi-channel pollutant rapid fluorescence detector Download PDFInfo
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- CN203324165U CN203324165U CN2013204672530U CN201320467253U CN203324165U CN 203324165 U CN203324165 U CN 203324165U CN 2013204672530 U CN2013204672530 U CN 2013204672530U CN 201320467253 U CN201320467253 U CN 201320467253U CN 203324165 U CN203324165 U CN 203324165U
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Abstract
The utility model discloses a multi-channel pollutant rapid fluorescence detector which comprises a central computer, a spectrometer, a light source control circuit, multi-channel light sources, a plurality of detection pools and multi-channel optical fibers. The central computer sends out a control signal to the light source control circuit, the light source control circuit selects one or more multi-channel light sources to send out excitation light waves which are used for enabling specific matter in a solution of the detection pools to generate fluorescence to the corresponding detection tools according to the control signal, the optical fibers corresponding to the detection pools receive the fluorescence in the detection pools, and then transmit the fluorescence to the spectrometer, the spectrometer receives the fluorescence to generate fluorescence spectra, and the fluorescence spectra are transmitted to the central computer. The plurality of sets of one-to-one correspondence light sources, detection tools and optical fibers are adopted in the detector to detect different kinds of matter, the spectrometer and the central computer are combined to process the detection result, the efficiency is high, the analysis is more accurate, and the whole detector is reasonable in systematic connecting, compact and simple in structure, and more convenient to adjust and maintain.
Description
Technical field
The utility model relates to the environment measuring technical field, is specifically related to a kind of hyperchannel pollutant rapid fluorescence detector.
Background technology
Adopt the fluorescent reagent that chemical reaction can occur with predetermined substance, under the irradiation of excitation source, can launch fluorescence.Utilize photoelectric detector and computing machine to be received and analyze fluorescence signal, calculate the concentration of current detected ion.Excitation source commonly used has high-pressure sodium lamp and pulse xenon lamp, and xenon lamp can be launched continuous spectrum, apply wider, comparatively common in current fluorescence spectrophotometer.Photoelectric detector is generally photomultiplier.There are the problems such as volume is large, energy consumption is high in light source in these technology and sensitive detection parts, and once can only be detected a kind of material, can not realize multi-channel detection.
As an existing Chinese utility model patent, its patent name is: portable real time fibre-optic fluorophotometer, Granted publication CN 2502265Y.This fluorophotometer has the fluorescence excitation device, fluorescence reception device, reference unit and corresponding optical system, monolithic processor control device and power supply.Adopt pulse xenon lamp as excitation source, the detection that adopts photodiode to carry out light signal receives.Detection for concentration of mineral oil.Can predict, this fluorophotometer has following shortcoming:
1, complex structure, components and parts are many;
2, can only be detected a kind of material;
3, adopt xenon lamp as excitation source, efficiency is low, has fried lamp risk;
4, adopt optical filter to survey fluorescence signal in conjunction with photodiode, can not obtain full spectroscopic data, have the shortcomings such as precision is low, error is large.
The utility model content
The utility model provides a kind of hyperchannel pollutant rapid fluorescence detector, can address the above problem.
A kind of hyperchannel pollutant rapid fluorescence detector that the utility model embodiment provides, comprise central computer, spectrometer, control circuit for light source, the multichannel light source, with the multichannel light source one to one a plurality of detection cells and with a plurality of detection cells multi-channel optical fibre one to one, central computer sends control signal to control circuit for light source, control circuit for light source selects multichannel light source Zhong De mono-Lu Huoji road light source to send for making the excitation light wave of solution predetermined substance generation fluorescence in detection cell to corresponding detection cell according to control signal, the optical fiber that detection cell is corresponding transfers to spectrometer after receiving the fluorescence in this detection cell, spectrometer receives fluorescence and produces fluorescence spectrum, and fluorescence spectrum is transferred to central computer.
Preferably, setting angle and the light source incident angle of corresponding installation described optical fiber ，Qie Mei road optical fiber are 90 ° respectively for the sidewall of each detection cell or diapire.
Preferably, described spectrometer is the single channel spectrometer, and described multi-channel optical fibre is connected to this single channel spectrometer by an optical fiber aggregating apparatus.
The light path of the detection cell that preferably ，Mei road light source directive is corresponding is provided with a collector lens.
Preferably, described light source is solid state light emitter.
The wavelength difference of the excitation light wave that preferably, multichannel light source Zhong Mei road light source sends.
Technique scheme can be found out, because adopting, the utility model embodiment organizes light source, detection cell and optical fiber one to one more, can be detected different types of different kinds of ions material, spectrometer is combined with central computer and is processed testing result, efficiency is high, analysis is more accurate, and whole detector system connects rationally, compact conformation is simple, regulates maintenance convenient.
The accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the system architecture diagram of fluorescence detector in the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making all other embodiment that obtain under the creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment:
The utility model embodiment provides a kind of hyperchannel pollutant rapid fluorescence detector, as shown in Figure 1, comprise central computer, spectrometer, control circuit for light source, multichannel light source, with the multichannel light source one to one a plurality of detection cells and with a plurality of detection cells multi-channel optical fibre one to one, the utility model embodiment Zhong Yi tri-road light sources are as signal, structure and principle to whole fluorescence detector are made concrete introduction, be appreciated that, the quantity of light source can be increased and decreased as required in other embodiments, for example 2,4 or more all passable.
Because the quantity of light source in the utility model embodiment is three tunnels, corresponding with it, the quantity of detection cell is also three, and the quantity of optical fiber is also three.
Particularly, central computer connects respectively spectrometer and control circuit for light source, which light source unlatching work this control circuit for light source is selected or closes work for controlling, those skilled in the art can be according to this this control circuit for light source of function designed, designed, and concrete circuit structure and principle of work repeat no more herein.Connect respectively three road light sources on control circuit for light source, three road light sources are three detection cells of corresponding directive respectively, in order to increase the efficiency of light source, the light path of the detection cell that every road light source directive is corresponding is provided with a collector lens, detection cell is in-built solution to be measured, solution to be measured contains predetermined substance (being specific molecular), and this predetermined substance is object to be measured, need to finally detect the concentration of predetermined substance in solution, the sidewall of three detection cells or diapire correspondence respectively are equipped with optical fiber, and the setting angle of each optical fiber and light source incident angle are 90 °, every road optical fiber is connected to spectrometer, this spectrometer can adopt multi-channel spectrometer based, meet access when following optical fiber more, also can on the optical fiber of every road, connect respectively a single channel spectrometer, then each spectrometer all is connected on central computer, but above-mentioned employing multi-channel spectrometer based or adopt the scheme of a plurality of single channel spectrometers all to have the problem of high cost, and the scheme adopted in the utility model embodiment is: described spectrometer is single-pass road spectrometer, described multi-channel optical fibre is connected to this single channel spectrometer by an optical fiber aggregating apparatus, in the utility model embodiment, three sense channels carry out converging to together by a three-in-one optical fiber of optical fiber aggregating apparatus formation, the sub-miniature A connector that optical fiber is standard, be input in single spectrometer.The optical fiber aggregating apparatus can be linked into three road optical fiber in the utility model embodiment in same single channel spectrometer simultaneously, thus the quantity of avoiding using expensive multi-channel spectrometer based or increasing spectrometer.The optical fiber aggregating apparatus can adopt existing optical fiber aggregating apparatus, for concrete structure and the principle of work of optical fiber aggregating apparatus, can, with reference to prior art, repeat no more herein.
In the utility model embodiment in order further to save the energy, keep light source stability, substituted existing xenon lamp with solid state light emitter, there is energy-efficient, as to avoid fried lamp effect, can control the power of solid state light emitter as required, adopt the high power solid state light source in the utility model embodiment, solid state light emitter refers to the LED light source that adopts the semiconductor light emitting technology and LASER Light Source etc., and its maximum characteristics are the life-spans with overlength.Belong to cold light source, luminescence efficiency is high more, and theoretical value is at more than three times of mercury lamp.
At first the user is reacted with testing liquid fluorescent reagent after starting once to measure in detection cell.Then, the user selects to detect the passage that will use by central computer, controls control circuit for light source and selects which light source works, and the control signal of selector channel is sent to control circuit for light source, to control the unlatching of respective sources.Light source adopts powerful solid state light emitter, and the multichannel light source sends respectively the excitation light wave of different wave length, adapts to respectively different test substances.Light source sends the excitation light wave of certain specific wavelength, by arriving in detection cell after collector lens, irradiates in solution to be measured.Solution to be measured has the fluorescence outgoing of new wavelength after absorbing exciting light energy.Optical fiber, being different from the utilizing emitted light (fluorescence) that on collector lens incident direction of light, the collection synthetic material sends, imports into to spectrometer.Spectrometer reads the exciting light (fluorescence) that optical fiber imports into, draws fluorescence spectrum.Central computer reads in fluorescence spectrum, and according to information such as the wavelength of fluorescence spectrum and intensity, in conjunction with the concentration data storehouse with establishing in advance, analysis-by-synthesis draws the kind of test substance in current fluorescence spectrum and testing liquid and the relation between concentration.
By technique scheme, can be found out, the fluorescence detector in the utility model embodiment has following advantage:
1, detect kind and the concentration of many group different materials;
2, three sense channels carry out converging to together by a three-in-one optical fiber, and the sub-miniature A connector that optical fiber is standard, be input in single spectrometer.This scheme can greatly reduce the user and purchase the expense of multi-channel spectrometer based for realizing multi-channel detection;
3, adopt solid state light emitter, avoided the use of xenon lamp etc., energy-saving efficiency is high;
4, adopt the spectrometer module, accuracy of detection is high, good reliability;
5, whole apparatus structure is compact simple, regulates easy to maintenance.
Above a kind of hyperchannel pollutant rapid fluorescence detector that the utility model embodiment is provided is described in detail, applied specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment is just for helping to understand core concept of the present utility model; , for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model simultaneously.
Claims (6)
1. hyperchannel pollutant rapid fluorescence detector, it is characterized in that, comprise central computer, spectrometer, control circuit for light source, the multichannel light source, with the multichannel light source one to one a plurality of detection cells and with a plurality of detection cells multi-channel optical fibre one to one, central computer sends control signal to control circuit for light source, control circuit for light source selects multichannel light source Zhong De mono-Lu Huoji road light source to send for making the excitation light wave of solution predetermined substance generation fluorescence in detection cell to corresponding detection cell according to control signal, the optical fiber that detection cell is corresponding transfers to spectrometer after receiving the fluorescence in this detection cell, spectrometer receives fluorescence and produces fluorescence spectrum, and fluorescence spectrum is transferred to central computer.
2. hyperchannel pollutant rapid fluorescence detector as claimed in claim 1, is characterized in that, the sidewall of each detection cell or diapire corresponding setting angle and the light source incident angle that described optical fiber ，Qie Mei road optical fiber is installed respectively are 90 °.
3. hyperchannel pollutant rapid fluorescence detector as claimed in claim 1, is characterized in that, described spectrometer is the single channel spectrometer, and described multi-channel optical fibre is connected to this single channel spectrometer by an optical fiber aggregating apparatus.
4. as claim 1 or 2 or 3 described hyperchannel pollutant rapid fluorescence detectors, it is characterized in that the light path of the detection cell that ，Mei road light source directive is corresponding is provided with a collector lens.
5. as claim 1 or 2 or 3 described hyperchannel pollutant rapid fluorescence detectors, it is characterized in that, described light source is solid state light emitter.
6. as claim 1 or 2 or 3 described hyperchannel pollutant rapid fluorescence detectors, it is characterized in that the wavelength difference of the excitation light wave that multichannel light source Zhong Mei road light source sends.
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| CN2013204672530U CN203324165U (en) | 2013-07-31 | 2013-07-31 | Multi-channel pollutant rapid fluorescence detector |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181134A (en) * | 2014-07-30 | 2014-12-03 | 深圳市开天源自动化工程有限公司 | Fluorescence detection device |
| CN104865231A (en) * | 2015-05-25 | 2015-08-26 | 南京信息工程大学 | Multichannel optical dissolved oxygen measurement device and measurement method |
| CN105784654A (en) * | 2016-03-11 | 2016-07-20 | 清华大学 | Optical fiber fluorescent sensor capable of detecting varied microorganisms simultaneously |
| CN106066320A (en) * | 2016-07-26 | 2016-11-02 | 中国科学院南海海洋研究所 | Seawater bacteria detecting system based on multiwavelength laser Induction of bacterial intrinsic fluorescence |
| CN106908421A (en) * | 2017-01-18 | 2017-06-30 | 北京蓝色星语科技有限公司 | A kind of multichannel dangerous substance detection method and detection means |
| CN107084933A (en) * | 2017-06-13 | 2017-08-22 | 上海森谱科技有限公司 | A kind of many absorption cell gas phase molecular absorption spectrometers of multiple light courcess |
| CN114324195A (en) * | 2022-03-17 | 2022-04-12 | 广东省农业科学院农业质量标准与监测技术研究所 | Multichannel agricultural product nondestructive testing method |
-
2013
- 2013-07-31 CN CN2013204672530U patent/CN203324165U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181134A (en) * | 2014-07-30 | 2014-12-03 | 深圳市开天源自动化工程有限公司 | Fluorescence detection device |
| CN104181134B (en) * | 2014-07-30 | 2016-08-17 | 深圳市开天源自动化工程有限公司 | Fluorescence detection device |
| CN104865231A (en) * | 2015-05-25 | 2015-08-26 | 南京信息工程大学 | Multichannel optical dissolved oxygen measurement device and measurement method |
| CN104865231B (en) * | 2015-05-25 | 2017-07-28 | 南京信息工程大学 | A kind of Multi-channel optical dissolved oxygen sensing method |
| CN105784654A (en) * | 2016-03-11 | 2016-07-20 | 清华大学 | Optical fiber fluorescent sensor capable of detecting varied microorganisms simultaneously |
| CN106066320A (en) * | 2016-07-26 | 2016-11-02 | 中国科学院南海海洋研究所 | Seawater bacteria detecting system based on multiwavelength laser Induction of bacterial intrinsic fluorescence |
| CN106066320B (en) * | 2016-07-26 | 2020-06-23 | 中国科学院南海海洋研究所 | Seawater bacteria detection system based on multi-wavelength laser induced bacteria intrinsic fluorescence |
| CN106908421A (en) * | 2017-01-18 | 2017-06-30 | 北京蓝色星语科技有限公司 | A kind of multichannel dangerous substance detection method and detection means |
| CN107084933A (en) * | 2017-06-13 | 2017-08-22 | 上海森谱科技有限公司 | A kind of many absorption cell gas phase molecular absorption spectrometers of multiple light courcess |
| CN114324195A (en) * | 2022-03-17 | 2022-04-12 | 广东省农业科学院农业质量标准与监测技术研究所 | Multichannel agricultural product nondestructive testing method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Futian District Shennan Road Shenzhen city Guangdong province 518000 No. 1019 Wande building room 705 Patentee after: SHENZHEN WATER TECHNOLOGY Co.,Ltd. Address before: Futian District Shennan Road Shenzhen city Guangdong province 518000 No. 1019 Wande building room 705 Patentee before: SHENZHEN KITEWAY AUTOMATION ENGINEERING Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |
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| CX01 | Expiry of patent term |