CN110487774A - Laser induced breakdown spectroscopy (LIBS) water quality quality evaluation system - Google Patents
Laser induced breakdown spectroscopy (LIBS) water quality quality evaluation system Download PDFInfo
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- CN110487774A CN110487774A CN201910953560.1A CN201910953560A CN110487774A CN 110487774 A CN110487774 A CN 110487774A CN 201910953560 A CN201910953560 A CN 201910953560A CN 110487774 A CN110487774 A CN 110487774A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/71—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited
- G01N21/718—Laser microanalysis, i.e. with formation of sample plasma
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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Abstract
The invention discloses laser induced breakdown spectroscopy (LIBS) water quality quality evaluation systems, solve the prior art and are difficult to regular formula identification, the problem of can not making to river pollution and effectively and timely monitor, be unable to satisfy ecological construction demand.Including turntable, sample cell is offered on turntable, and placement platform is equipped in sample cell, is equipped with below the sample cell for holding or leaving the block below placement platform；The turntable is equipped with the sampling position being located on sample cell rotation path, acquisition position and is detached from position, sample the water pipe being equipped with right above position for injecting water sample to be detected, acquisition position is equipped with the spectrometer that laser and plasma emission spectrum for plasma to be focused and formed to water sample are analyzed, and is detached from position and is arranged right below moveable classification stage.Achieve the effect that the integration of water quality superiority and inferiority quickly identifies online.
Description
Technical field
The present invention relates to water quality quality evaluation engineering device technique fields, in particular to laser induced breakdown spectroscopy (LIBS) water quality
Quality evaluation system.
Background technique
In recent years, as China's economic develops rapidly, as the important medium of industrial development, river pollution is got worse.
Water quality identification all the time be all monitored with environment department based on, but this monitoring mode and not perfect.Science and technology mirror method for distinguishing
Though referring to, belongs to regular formula mostly and identify, river pollution can not be made and effectively and timely monitor.This kind of monitoring method is
It is not able to satisfy the demand of ecological construction.
As depicted in figs. 1 and 2, laser induced breakdown spectroscopy (laser-induced breakdown spectroscopy,
LIBS) technology is a kind of emission spectrographic analysis technology based on atom or ion, and pulse laser focusing is existed using condenser lens
Sample surfaces realize the ablation to sample to be tested, and transient state plasma is generated after excitation, by collecting and surveying plasma emission
Spectrum, it can be achieved that in the sample (solid-state, liquid and gaseous state) of any physical aspect contained elemental composition it is qualitative and content
Quantitative analysis detection technique.Relative to traditional spectral analysis technique, LIBS technology because having without sample pretreatment, quickly,
The advantages of high sensitivity and multielement detect simultaneously and by extensive concern, be a kind of spectrum analysis detection of great application potential
Technology.
The present invention is based on the serious facts of current river pollution, and element ratio extremely important in LIBS technology analysis is answered
Identify for water quality and study, identifies for water quality and provide a kind of new timely and effectively scientific and technological identification systems.The invention mainly needs
The acquisition comparison of river water element ratio is wanted to sort out integrated problem of implementation.
Summary of the invention
The object of the present invention is to provide a kind of laser induced breakdown spectroscopy (LIBS) water quality quality evaluation systems, are based on LIBS
The rice paper elemental composition on-line checking element ratio method of technology, by the improvement to detection pattern, in conjunction with detection process from
Dynamic and computer digital animation realizes the integration quickly online identification of water quality superiority and inferiority.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of laser induced breakdown spectroscopy (LIBS) water quality quality evaluation system, including turntable offer sample cell, sample on turntable
Placement platform is equipped in product slot；
The turntable is equipped with the sampling position being located on sample cell rotation path, acquisition position and is detached from position,
The water pipe being equipped with right above position for injecting water sample to be detected is sampled,
Acquisition position be equipped with for water sample is focused and is formed plasma laser and plasma emission spectrum into
The spectrometer of row analysis,
It is detached from below position and is successively arranged for holding or leaving block below placement platform, moveable classification stage.
Further, classification stage includes multiple classification boxes fallen into after being detached from turntable for placement platform, and classification is flat
Platform moving direction makes each classification box be respectively moved to be detached from the underface of position.
Further, sorting out box includes four, respectively represents four kinds of superiority and inferiority classification of water sample.
Further, four classification boxes are in a lineal layout, and classification stage is moved along the rectilinear direction.
Further, classification stage bottom is equipped with several idler wheels and drives the motor of idler wheel rotation.
Further, after laser is emitted by reflective mirror, acquisition position is focused on by condenser.
Further, block is driven by electric cylinder, it is made to hold or leave below placement platform.
Further, the mobile motor of driving classification stage and the electric cylinder of driving block movement are all electrically connected at control
Device processed, and work under controller action；Spectrometer is connected to the computer for carrying out data processing, and computer is connected to control
Device.
In conclusion the invention has the following advantages:
Quick and precisely identifying online to water quality superiority and inferiority may be implemented in the present invention, realizes that the automation identified is surveyed in water quality monitoring, real
The integration that existing water quality monitoring identifies, and the present apparatus can make the convenient degree of water quality quality evaluation greatly improve, so that water
The precision of matter quality evaluation greatly improves.
Detailed description of the invention
Fig. 1 is existing water quality detection Experimental equipment；
Fig. 2 is Classification of water Qualities flow diagram；
Fig. 3 is a kind of structural schematic diagram of laser induced breakdown spectroscopy (LIBS) water quality quality evaluation system provided by the invention.
In figure, 1, turntable；11, position is sampled；12, position is acquired；13, it is detached from position；2, water pipe；3, spectrometer；4, classification stage；
41, sort out box.
Specific embodiment
Specific embodiments of the present invention will be further explained with reference to the accompanying drawing, and the present embodiment is not constituted to the present invention
Limitation.
A kind of laser induced breakdown spectroscopy (LIBS) water quality quality evaluation system, as shown in figure 3, including turntable 1, turntable 1
On offer sample cell, placement platform is equipped in sample cell.
As shown in figure 3, turntable 1 is equipped with the sampling position 11 being uniformly distributed on sample cell rotation path, acquisition 12 and of position
It is detached from position 13；Sample the water pipe 2 being equipped with right above position 11 for injecting water sample to be detected.
As shown in figure 3, acquisition position 12 is equipped with laser and equity for plasma to be focused and formed to water sample
The spectrometer 3 that ionomer emission spectrum is analyzed originally has reached the middle Nd-YAG spectrometer using Q-switch, fundamental wavelength
For 1064nm, ceiling capacity 600mJ, single laser pulse 10ns, frequency 5Hz.
As shown in figure 3, laser is emitted by laser, then after being emitted by reflective mirror, acquisition position 12 is focused on by condenser.
Laser beam focus is 300 millimeters in the surface of sample, the focal length of lens, forms about 100 microns of a diameter of focal spot.
As shown in figure 3, disengaging position 13 is arranged right below for holding or leaving the block below placement platform.This implementation
In example, the present apparatus can be placed again into new placement platform with the use of manipulator after placement platform disengaging；It is also solid inside device
There is a circle to be located at the baffle ring below sample cell rotation path, baffle ring holds placement platform, and block is connected to inside device, baffle ring surely
It is open at block, block is driven in opening by electric cylinder, and block is made to hold or leave under placement platform at disengaging position 13
Side；Block can be also fixed on 1 lower section of turntable by it, its gear is made to be set to below sample cell and leave being detached from 13 position of position.
As shown in figure 3, being detached from position 13 is arranged right below moveable classification stage 4.Classification stage 4 includes multiple for placing
The classification box 41 that platform is fallen into after being detached from turntable 1,4 moving direction of classification stage make each classification box 41 be respectively moved to be detached from position
13 underface.Sorting out box 41 in the present embodiment includes respectively representing four kinds of superiority and inferiority point of water sample in four of a lineal layout
Class, classification stage 4 are moved along the rectilinear direction.
As shown in figure 3,4 bottom of classification stage is equipped with several idler wheels and drives the motor of idler wheel rotation；Driving classification is flat
The mobile motor of platform 4 and the electric cylinder of driving block movement are all electrically connected at controller, and work under controller action；Light
Spectrometer 3 is connected to the computer for carrying out data processing, and computer is connected to controller.
The course of work:
As shown in Figures 2 and 3, firstly, graphite flake is placed in sampling position 11, top water pipe 2 carries out attached collection by water sample to be detected
The acquisition of water sample；Then, turntable 1 rotates, and at laser spot (i.e. acquisition position 12), carries out LIBS data to attached collection water sample and adopts
Collection；Then, test data is transferred to data processing end and carries out analysis classification, detects feature in all kinds of samples by LIBS technology
Data according to the superiority and inferiority of known water sample, are referred to I, II, III, IV by corresponding data Classifying Sum by the content ratio of element
By excellent into the classification of secondary four kinds of superiority and inferiority, and in unified logging data processing system；Finally, turntable 1 continues to rotate, it is being detached from position
13, controller control tactics box contraposition, block leaves, and attached collection water sample separates the classification box 41 for falling into corresponding label to placement platform
It is interior.If classification is failed, then block will not be opened, and turntable 1 continues to rotate, and repeat detecting step, re-start inspection to water sample
Survey classification.
The above described is only a preferred embodiment of the present invention, being not used in the limitation present invention, those skilled in the art can
It is this to modify or equally replace within the spirit and scope of the present invention, to make various modifications or equivalent replacements to the present invention
Changing, which also should be regarded as, falls in the protection scope of technical solution of the present invention.
Claims (8)
1. a kind of laser induced breakdown spectroscopy (LIBS) water quality quality evaluation system, it is characterised in that: including turntable (1), turntable
(1) sample cell is offered on, is equipped with placement platform in sample cell；
The turntable (1) is equipped with the sampling position (11) being located on sample cell rotation path, acquisition position (12) and is detached from position (13),
The water pipe (2) being equipped with right above position (11) for injecting water sample to be detected is sampled,
Acquisition position (12) is equipped with laser and plasma transmitting light for plasma to be focused and formed to water sample
The spectrometer (3) analyzed is composed,
It is detached from below position (13) and is successively arranged for holding or leaving block below placement platform, moveable classification stage
(4).
2. laser induced breakdown spectroscopy (LIBS) water quality quality evaluation system according to claim 1, it is characterised in that: point
Class platform (4) includes multiple classification boxes (41) fallen into after being detached from turntable (1) for placement platform, classification stage (4) movement side
To the underface for making each classification box (41) be respectively moved to disengaging position (13).
3. laser induced breakdown spectroscopy (LIBS) water quality quality evaluation system according to claim 2, it is characterised in that: return
Class box (41) includes four, respectively represents four kinds of superiority and inferiority classification of water sample.
4. laser induced breakdown spectroscopy (LIBS) water quality quality evaluation system according to claim 3, it is characterised in that: four
A classification box (41) is in a lineal layout, and classification stage (4) is moved along the rectilinear direction.
5. laser induced breakdown spectroscopy (LIBS) water quality quality evaluation system according to claim 4, it is characterised in that: point
Class platform (4) bottom is equipped with several idler wheels and drives the motor of idler wheel rotation.
6. laser induced breakdown spectroscopy (LIBS) water quality quality evaluation system according to claim 1 or 2, feature exist
In: after laser is emitted by reflective mirror, acquisition position (12) is focused on by condenser.
7. laser induced breakdown spectroscopy (LIBS) water quality quality evaluation system according to claim 5, it is characterised in that: gear
Block is driven by electric cylinder, it is made to hold or leave below placement platform.
8. laser induced breakdown spectroscopy (LIBS) water quality quality evaluation system according to claim 7, it is characterised in that: drive
Dynamic classification stage (4) mobile motor and the electric cylinder of driving block movement are all electrically connected at controller, and make in controller
With lower work；Spectrometer (3) is connected to the computer for carrying out data processing, and computer is connected to controller.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111175287A (en) * | 2020-01-13 | 2020-05-19 | 中国海洋大学 | Detection device and detection method for self-carried sample carrying submersible |
| CN113758913A (en) * | 2021-11-09 | 2021-12-07 | 苏州星帆华镭光电科技有限公司 | Laser-induced breakdown spectrometer for multi-sample detection |
| CN118010636A (en) * | 2024-04-08 | 2024-05-10 | 成都乐攀环保科技有限公司 | On-line monitor and monitoring method for biotoxicity water quality |
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| CN103728460A (en) * | 2014-01-17 | 2014-04-16 | 广州鸿琪光学仪器科技有限公司 | Automatic bacterial vaginosis detector |
| CN104711685A (en) * | 2015-02-08 | 2015-06-17 | 福建师范大学 | Multifunctional electrostatic spinning equipment |
| CN105572103A (en) * | 2016-03-02 | 2016-05-11 | 中华人民共和国台州出入境检验检疫局 | Method for quantitatively detecting multiple heavy metals in leather at same time based on LIBS (Laser-Induced Breakdown Spectroscopy) technology |
| CN109297952A (en) * | 2018-11-09 | 2019-02-01 | 南京信息工程大学 | Rice paper quality evaluation system based on laser induced breakdown spectroscopy |
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2019
- 2019-10-09 CN CN201910953560.1A patent/CN110487774A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728460A (en) * | 2014-01-17 | 2014-04-16 | 广州鸿琪光学仪器科技有限公司 | Automatic bacterial vaginosis detector |
| CN104711685A (en) * | 2015-02-08 | 2015-06-17 | 福建师范大学 | Multifunctional electrostatic spinning equipment |
| CN105572103A (en) * | 2016-03-02 | 2016-05-11 | 中华人民共和国台州出入境检验检疫局 | Method for quantitatively detecting multiple heavy metals in leather at same time based on LIBS (Laser-Induced Breakdown Spectroscopy) technology |
| CN109297952A (en) * | 2018-11-09 | 2019-02-01 | 南京信息工程大学 | Rice paper quality evaluation system based on laser induced breakdown spectroscopy |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111175287A (en) * | 2020-01-13 | 2020-05-19 | 中国海洋大学 | Detection device and detection method for self-carried sample carrying submersible |
| CN113758913A (en) * | 2021-11-09 | 2021-12-07 | 苏州星帆华镭光电科技有限公司 | Laser-induced breakdown spectrometer for multi-sample detection |
| CN113758913B (en) * | 2021-11-09 | 2022-01-18 | 苏州星帆华镭光电科技有限公司 | Laser-induced breakdown spectrometer for multi-sample detection |
| CN118010636A (en) * | 2024-04-08 | 2024-05-10 | 成都乐攀环保科技有限公司 | On-line monitor and monitoring method for biotoxicity water quality |
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