CN206074454U - Based on the portable variable depth heavy metal content in soil detection means of LIBS - Google Patents
Based on the portable variable depth heavy metal content in soil detection means of LIBS Download PDFInfo
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- CN206074454U CN206074454U CN201621061515.3U CN201621061515U CN206074454U CN 206074454 U CN206074454 U CN 206074454U CN 201621061515 U CN201621061515 U CN 201621061515U CN 206074454 U CN206074454 U CN 206074454U
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Abstract
This utility model is related to the detection technique of heavy metal content in soil, it is with reference to LIBS technologies (Laser induced breakdown spectroscopy Laser induced plasma spectroscopies), realize to different depth heavy metal content in soil without the need for pretreatment, quick, detection in real time, there is provided a kind of to be based on the portable variable depth heavy metal content in soil detection means of LIBS.The technical solution adopted in the utility model is, portable variable depth heavy metal content in soil detection means based on LIBS (Laser induced breakdown spectroscopy Laser induced plasma spectroscopies) technology, including analysis system part and explorer portion, analysis system includes Gao Zhongying laser instrument, condenser lens, laser pick-off optical fiber head, spectrogrph optical fiber, laser fiber, a spectroanalysis instrument.This utility model is mainly used in the detection of heavy metal content in soil.
Description
Technical field
This utility model belongs to the inspection of the heavy metal content in soil of different depth in soil monitoring and heavy metal analysis field
Survey technology, specifically, is related to the portable variable depth heavy metal content in soil detection means based on LIBS technologies.
Background technology
Heavy metal pollution of soil is referred to be brought into heavy metal in soil due to the activity of the mankind, causes heavy metal content in soil
Apparently higher than its Natural Background Values, and cause the phenomenon that ecological disruption and environmental quality deteriorate.Heavy metal contaminants are primarily referred to as
Hg, Cd, Pb, Cr, Cu, Ni, Co, Sn (hydrargyrum, cadmium, lead, chromium, copper, nickel, cobalt, stannum) and metalloid As (arsenic) etc..Heavy metal is in soil
It is difficult in earth with water leaching, it is impossible to be decomposed by the microorganisms, with obvious bioconcentration.Heavy metal is mainly by crop
The impact of yield and quality show its harm, therefore with compared with long latency.By " soil → plant → human body " or " soil
→ water → human body " is absorbed by the body indirectly, is detrimental to health.It is dirty that heavy metal pollution has become the global environment for receiving much concern
One of dye problem, China's heavy metal pollution are also extremely serious.There is data to show, the farm land area of China's heavy metal pollution is about
25000000 square metres, annual up to 12,000,000 tons contaminated by heavy metals of grain, because heavy metal pollution causes grain drop in production high
Up to more than 1,000 ten thousand tons, at least 20,000,000,000 yuan of total economic loss；Pollution of the heavy metal to soil is difficult to recover in a short time, in soil
Heavy metal agricultural product may be entered by concerned foodstuff chain, have influence on the quality safety of agricultural product, seriously may jeopardize
To human health, survival and development.And due to different depth soil residing for environmental difference it is huge, so the soil of different depth
Earth content of beary metal there is also very big difference, and the only heavy metal content in soil of accurate perception different depth comprehensively can be commented
Valency heavy metal pollution of soil degree, provides reliable basis to administer and taking precautions against heavy metal-polluted soil harm.Therefore, to different depth
Heavy metal content in soil carries out the objective demand that quick, real-time, accurate detection is soil monitoring and field of food safety.
Traditional soil pollution status analysis detection both at home and abroad passes through laboratory chemical reagent after generally adopting field investigation and sampling
The method being analyzed with spectral instrument.But, these traditional methods have the shortcomings that can not ignore and not enough, experiment
Room chemical detection method accuracy is higher, but its detection cycle is long, easily produces secondary pollution and can not enter in detection process
Row is quick to be detected immediately；The method detection speed of spectral instrument analysis is very fast, simple to operate, but can not realize different depth soil
The detection of heavy metal.In recent years, countries in the world increase the input to heavy metal-polluted soil context of detection, with spectroscopy analysis skill
The advanced technologies such as art, electrochemical measuring technique and biological analysiss and newest research results are entered to heavy metal pollution of soil problem
Row research, occurs in that hyperspectral analysis technology, Biomass are measured indirectly determination techniques, environmental magnetism, terahertz light spectrometry etc. and be
Row new technique.But above-mentioned these existing heavy metal-polluted soil detection techniques equally exist the shortcoming that can not ignore：Before detection
Sample need to pass through being intended to process, can not realizing quickly drawing analysis result in real time, can not carrying out different depth soil for complexity
Detection.Simultaneous electrochemical analytic process and bioanalysiss are due to needing to carry out the processing procedure of complexity, it is easy to cause secondary dirt
Dye.Chinese invention patent 201610045040.7 discloses a kind of LIBS systems detected based on twin-lens micro heavy.
System includes sample stage, laser instrument, focus lens group, optical fiber, multi-channel spectrometer and data processor, and testing sample is adopted
Collect to sample stage, Analysis of Heavy Metal is carried out using LIBS technologies.The shortcoming of this system is, it is impossible to carry out it is live in real time, no
Same depth detection, and the design of sample stage can not meet the requirement of heavy metal in soil detection, it is impossible to for heavy metal-polluted soil
Detection.Chinese invention patent 201410816225.4 discloses a kind of heavy metal-polluted soil detection method and apparatus and system.Should
Method includes：Under default testing conditions, heavy metal-polluted soil detection means obtains the second feature X-ray spectrum of soil to be detected,
Second feature X-ray spectrum includes wavelength corresponding with the heavy metal in soil to be detected and intensity；By second feature X-ray spectrum
In wavelength and wavelength and intensity in intensity and fisrt feature X-ray spectrum contrasted, realize the detection to heavy metal-polluted soil.
The shortcoming of this method is to need complicated data processing to calculate, and can not carry out the heavy metal-polluted soil detection of different depth.
In sum, can without the need for pretreatment it is quick, analyze different depth heavy metal content in soil in real time to soil
Earth is monitored and heavy metal analysis field is particularly significant.Currently without people propose can in real time to different depth heavy metal-polluted soil
The method of detection, and existing method needs the sample for carrying out complexity to be intended to process, it is impossible to realize detecting quickly, in real time, thus may be used
To find out, design is a without the need for the device that is quick, analyzing different depth heavy metal content in soil in real time of pretreatment can be
The urgent needss of present analysis heavy metal pollution of soil.
The content of the invention
To overcome the deficiencies in the prior art, this utility model to aim in soil monitoring field, lacking can be without the need for pre-
The technology and equipment this present situation quick, that analyze different depth heavy metal content in soil in real time for processing, design one kind are portable
Formula variable depth heavy metal content in soil detection means, with reference to LIBS technologies (Laser-induced breakdown
Spectroscopy Laser induced plasma spectroscopies), realize to different depth heavy metal content in soil without the need for pretreatment, fast
Speed, in real time detection.The technical solution adopted in the utility model is, based on LIBS (Laser-induced breakdown
Spectroscopy Laser induced plasma spectroscopies) technology portable variable depth heavy metal content in soil detection means,
Including analysis system part and explorer portion, analysis system includes Gao Zhongying laser instrument, condenser lenses, a laser pick-off light
Fine head, spectrogrph optical fiber, laser fiber, spectroanalysis instrument；Detector include spectrum acquisition optical fiber head, No. three condenser lenses,
High reflective mirror, laser emitting fiber head, it is high it is anti-high lens, No. two condenser lenses, fused silica glass；Gao Zhongying laser instrument sends Gao Chong
Frequency laser, converges to laser pick-off optical fiber head through a condenser lenses, then is coupled into laser optical by laser pick-off optical fiber head
Detector is transferred into after fibre, is then derived by laser emitting fiber head, laser through it is high it is anti-high lens, finally by two
Number condenser lenses make laser converge to soil sample through fused silica glass, and excite plasma, in plasma cooling procedure
Laser induced plasma spectroscopy can be released, the elemental characteristic spectral line and intensity letter of heavy metal in soil sample in spectrum, can be included
Breath, dissipates spectrum after the convergence effect of No. two condenser lenses by the laser induced plasma that plasma sends, dissipates
Laser induced plasma spectroscopy gather the high lens of high anti-, the diverging spectrum of laser induced plasma is in ultraviolet waves
Section, is reflected towards high reflective mirror place direction through the high lens of high anti-, then reflexes to No. three condenser lenses, Ran Houtong by high reflective mirror
No. three condenser lenses are crossed, Laser induced plasma spectroscopy is accumulated spectrum acquisition optical fiber head, laser induced plasma light
Spectrum is coupled in spectrogrph optical fiber, then by spectrogrph fiber-optic transfer to spectroanalysis instrument, spectroanalysis instrument analyzes multigroup spy
Levying spectral line carries out display output with the intensity of spectral line.
Also include and detector scale and detector handle, be used for：Detector scale institute is found according to selected depth right
The scale answered, detector is inserted in regional soil to be measured, makes upper soll layer align with corresponding scale；Slightly firmly press after insertion
The soil sample of fused silica glass front end is compacted by detector handle, to prevent soil from splashing in the presence of laser, affects laser
The generation of induced plasma spectrum and collection.
The characteristics of this utility model and beneficial effect are：
This utility model utilizes LIBS technologies (Laser-induced breakdown spectroscopy induced with laser etc.
Gas ions spectrum), and the portable variable depth heavy metal content in soil detection means using design realizes different depth soil
The quick detection of content of beary metal.First, realize a kind of based on LIBS technologies (Laser-induced breakdown
Spectroscopy Laser induced plasma spectroscopies) heavy metal-polluted soil detection means.Second, system is using variable depth
Detection device, realizes the detection of different depth heavy metal content in soil.3rd, portable design high degree increased and set
Standby motility.
Description of the drawings：
Fig. 1 is the structural representation of system described in the utility model；
Fig. 2 is panel detector structure schematic diagram described in the utility model；
In accompanying drawing, the part example table representated by each label is as follows：
1- upstream data lines, 2- display, 3- video data lines, 4- analysis systems, 5- Gao Zhongying laser instrument, 6- mono- gather
Focus lens, 7- computers, 8- spectroanalysis instruments, 9- laser pick-off optical fiber heads, 10- spectrogrph optical fiber, 11- laser fibers, 12-
Detector handle, 13- detectors, 14- detector scales, 15- probe bodys, 16- spectrum acquisition optical fiber heads, 17- tri- gather
Focus lens, 18- high reflective mirrors, 19- laser emitting fiber heads, 20- it is high it is anti-high lens, No. bis- condenser lenses of 21-, 22- quartz mirrors
Piece, 23- plasmas.
Specific embodiment
The utility model discloses a kind of be based on LIBS technologies (Laser-induced breakdown spectroscopy
Laser induced plasma spectroscopy) portable variable depth heavy metal content in soil detection means, its technical scheme is as follows：
It is a kind of to be based on LIBS technology LIBS technologies (Laser-induced breakdown spectroscopy induced with laser
Plasma spectrometry) portable variable depth heavy metal content in soil detection means, including analysis system part and detector
Part.Analysis system includes Gao Zhongying laser instrument, condenser lens, laser pick-off optical fiber head, spectrogrph optical fiber, a laser optical
Fibre, spectroanalysis instrument, upstream data line, computer, video data line, display.Detector includes probe body, detector
Handle, detector scale, spectrum acquisition optical fiber head, No. three condenser lenses, high reflective mirror, laser emitting fiber head, it is high it is anti-it is high thoroughly
Mirror, No. two condenser lenses, fused silica glass.
The analysis system Main Function is to provide Gao Zhongying laser with data analysiss and display.
The detector Main Function is to go deep into soil to carry out heavy metal analysis.
The Gao Zhongying laser instrument is used as system LIBS technology (Laser-induced breakdown spectroscopy
Laser induced plasma spectroscopy) light source.
A number condenser lenses are for converging to laser pick-off optical fiber head by laser.
The laser pick-off optical fiber head is for the laser coupled of convergence is entered in laser fiber.
Spectrogrph optical fiber connection spectrum acquisition optical fiber head and spectroanalysis instrument, for the induced with laser that will collect etc. from
Daughter spectral transmissions are to spectroanalysis instrument.
The laser fiber connection laser pick-off optical fiber head and laser emitting fiber head, for Laser Transmission is extremely detected
In device.
The spectroanalysis instrument is used to extract the characteristic parameter in Laser induced plasma spectroscopy.
The upstream data line is for the heavy metal-polluted soil information transfer that obtains spectroanalysis instrument to computer.
The computer is used for the species and content that software analysis calculate heavy metal.
The video data line is shown for computer controlled display.
The display is for the testing result of intuitively form display heavy metal-polluted soil species and content.
The probe body is used for element in Backup lightpath and system.
The detector handle is easy to user detector to be inserted inside soil.
The detector scale is used for accurate perception detector and inserts depth of soil.
The Laser induced plasma spectroscopy that the spectrum acquisition optical fiber head is accumulated for reception.
No. three condenser lenses are for Laser induced plasma spectroscopy is converged.
The high reflective mirror is used for the optical path direction for changing Laser induced plasma spectroscopy.
The laser emitting fiber head is for laser is derived from laser fiber.
It is described it is high it is anti-high lens be mainly used in building coaxial optical path.
No. two condenser lenses for by Gao Zhongying laser converge on pedotheque and collect induced with laser etc. from
Daughter spectrum.
The fused silica glass is for by soil compression and preventing soil from entering detector.
This utility model is further described with reference to the accompanying drawings and examples.
As shown in Figure 1, 2, a kind of portable variable depth heavy metal content in soil based on LIBS technologies of this utility model
Detection means, including analysis system 4 and detector 13.Analysis system 4 includes 5, condenser lens 6 of Gao Zhongying laser instrument, swashs
Light-receiving optical fiber head 9, spectrogrph optical fiber 10, laser fiber 11, spectroanalysis instrument 8, upstream data line 1, computer 7, display
Data wire 3, display 2.Detector 13 includes probe body 15, detector handle 12, detector scale 14, spectrum acquisition light
Fine 16, No. three condenser lens 17, high reflective mirror 18, laser emitting fiber head 19, it is high it is anti-20, No. two condenser lenses 21 of high lens,
Fused silica glass 22.
The analysis system 4, mainly includes Gao Zhongying laser instrument 5, spectroanalysis instrument 8, computer 7 and display 2.Mainly
Effect is to provide Gao Zhongying laser for system and analyze laser induced plasma spectrum to calculate heavy metal-polluted soil species and content.
The detector 13, mainly includes probe body 15,16, No. three condenser lenses 17 of spectrum acquisition optical fiber head, height
Anti- mirror 18, laser emitting fiber head 19, it is high it is anti-high lens 20, No. two condenser lenses 21, fused silica glass 22, mainly as system
Probe, can go deep into inside soil, carrying out the detection of heavy metal.
The Gao Zhongying laser instrument 5, as system LIBS technology (Laser-induced breakdown
Spectroscopy Laser induced plasma spectroscopies) light source, system is reduction system using the purpose of Gao Zhongying laser instrument 5
Volume, to realize portable design, 5 centre wavelength 1064nm of Gao Zhongying laser instrument in the system, repetition 8KHz, pulsewidth 4ns,
Average energy 150, meets LIBS technologies (Laser-induced breakdown spectroscopy laser induced plasmas
Spectrum) require.
A number condenser lenses 6, for the directional light that Gao Zhongying laser instrument 5 is sent is converged to laser pick-off optical fiber head
9, it is easy to laser coupled to enter laser fiber 11, improves coupling efficiency.
The laser pick-off optical fiber head 9, receives the laser converged by a condenser lenses 6, and is coupled into laser instrument
Optical fiber 11.
The spectrogrph optical fiber 10, using single-mode fiber, connects spectrum acquisition optical fiber 16 and spectroanalysis instrument 8, for inciting somebody to action
The Laser induced plasma spectroscopy of collection is transmitted to spectroanalysis instrument 8.
The laser fiber 11, using single-mode fiber, connects laser pick-off optical fiber head 9 and laser emitting fiber head 19,
For by Laser Transmission to detector 13.
The spectroanalysis instrument 8, for extracting heavy metal-polluted soil species and content in Laser induced plasma spectroscopy
Relevant information, the system spectroanalysis instrument 8 are high using marine optics HR4000 (a spectrogrph of Ocean Optics' production)
Resolution ultraviolet spectrometer, has the advantages that simple to operate, high resolution, small volume, meets the demand of the system.
The upstream data line 1, sends into computer for the heavy metal-polluted soil information for drawing will be analyzed in spectroanalysis instrument 8
Calculating is analyzed in 7.
The computer 7, for receiving the heavy metal-polluted soil information that spectroanalysis instrument 8 is sent, is analyzed and calculates
Species containing heavy metal and content in soil, and shown.
The video data line 3, for the heavy metal-polluted soil species and content information that calculates 7 analysis meter of computer with electricity
Signal is sent into display 2 and carries out display output.
The display 2, for the testing result of heavy metal-polluted soil species and content is shown with intuitively form.
The probe body 15, is hollow cylinder, and front end is hollow cone, with good sealing, corrosion resistance,
Main Function is protection system element, prevents pollutant in soil from entering system, and outer cover length can be according to soil depth to be detected
Degree designed, designed.
The detector handle 12, at the top of detector 13, for controlling, inside the insertion soil of detector 13, to be easy to make
User's control is using detector 13.
The detector scale 14, portrays on the outside of probe body 15, and zero graduation is located at 13 bottom of detector, for essence
The insertion depth of soil of detector 13 is grasped really, 13 length of detector can be adjusted according to practical measurement requirement.
The spectrum acquisition optical fiber head 16, is connected with spectrogrph optical fiber 10, is converged by No. three condenser lenses 17 for receiving
Laser induced plasma spectroscopy, and spectrogrph optical fiber 10 is sent into in Laser induced plasma spectroscopy coupling.
No. three condenser lenses 17, for Laser induced plasma spectroscopy is converged to spectrum acquisition optical fiber head 16,
To complete the collection of Laser induced plasma spectroscopy.
The high reflective mirror 18, due to heavy metal laser induced plasma spectrum more be in ultraviolet band, so high reflective mirror
18 be 45 degree of ultraviolet band high reflective mirrors, for by laser induced plasma spectral reflectance to No. three 17 place directions of condenser lenses.
The laser emitting fiber head 19, is connected with laser fiber 11, is mainly used in laser from laser fiber 11
Middle derivation.
The high lens 20 of the high anti-, for the laser induced plasma spectrum light path returned in change system, high anti-is high
20 front of lens is 45 degree 1064nm high thoroughly, the back side be 45 degree ultraviolet bands height instead, it is high it is anti-high lens 20 by induced with laser etc. from
Sub-light spectrum is reflected towards 18 place direction of high reflective mirror, and the Gao Zhongying laser of 1064nm is not affected.
No. two condenser lenses 21, for laser is converged to soil sample surface, with produce plasma 23 and
The Laser induced plasma spectroscopy that plasma 23 sends is converged, to improve signal intensity.
The fused silica glass 22, Main Function are to be compacted soil sample to be measured, prevent soil in the presence of laser
Splash, affect testing result, while can prevent pollutant in soil from entering from detector front end, and the laser to ultraviolet band is lured
Lead plasma spectrometry and absorb very little, do not interfere with signal intensity.
Utility model works process and principle：Gao Zhongying laser instrument 5 sends the Gao Zhongying laser of 1064nm, through No. one
Condenser lenses 6 converge to laser pick-off optical fiber head 9, then transmit after being coupled into laser fiber 11 by laser pick-off optical fiber head 9 into
Enter detector 13, then derived by laser emitting fiber head 19, laser through it is high it is anti-high lens 20, it is poly- finally by No. two
Focus lens 21 make laser converge to soil sample through fused silica glass 22, and the high energy laser of focusing can be made around focus point rapidly
The evaporation of sub-fraction sample, ionization, produce a large amount of atoms and ion, and further excite plasma 23, plasma is produced
Expansion can be experienced after life and two processes are cooled down, plasma 23 can release the characteristic light produced by ion in cooling procedure
Spectrum, can include the elemental characteristic spectral line and strength information of heavy metal in soil sample in spectrum, different heavy metal elements can quilt
The characteristic spectral line of different wave length is inspired, and the intensity of characteristic spectral line is determined by the content of heavy metal, so passing through analytical calculation
Characteristic spectral line and strength information in Laser induced plasma spectroscopy, we can be obtained by the species of heavy metal in soil with
Content, this technology are called LIBS technologies (Laser-induced breakdown spectroscopy induced with laser etc. for short
Gas ions spectrum).Remittance of the spectrum through No. two condenser lenses 21 is dissipated by the laser induced plasma that plasma 23 sends
After poly- effect, the Laser induced plasma spectroscopy of diverging gather it is high it is anti-high lens 20, the diverging of laser induced plasma
Spectrum is in ultraviolet band, through it is high it is anti-high lens 20 be reflected towards 18 place direction of high reflective mirror, then reflexed to by high reflective mirror 18
No. three condenser lenses 17, then by No. three condenser lenses 17, Laser induced plasma spectroscopy is accumulated spectrum acquisition light
Fine 16, Laser induced plasma spectroscopy is coupled in spectrogrph optical fiber 10, then is transmitted to spectrum by spectrogrph optical fiber 10
Analyser 8, spectroanalysis instrument 8 analyze multigroup characteristic spectral line and the intensity of spectral line, and in terms of being sent into by upstream data line 1 by the signal of telecommunication
Calculation machine 7, computer 7 can according to the characteristic spectral line that obtains and the intensity of spectral line information calculate the species of heavy metal in soil sample with
Heavy metal-polluted soil species and content information is sent into display 2 with the signal of telecommunication finally by video data line 3 and is shown by content
Output.
Embodiment：
(1) set up neural network model analytical calculation software：Using Establishment of Neural Model, one contains a various huge sum of moneys
The data base of category characteristic spectral line, and realize for detection information comparing determination heavy metal species with data base with software, recycle soft
The relational expression of part fit characteristic the intensity of spectral line and content of beary metal, for calculating heavy metal content in soil.
(2) select soil sample to be measured region and depth, and according to selected depth find detector scale 14 it is right
The scale answered, detector 13 is inserted in regional soil to be measured, makes upper soll layer align with corresponding scale.
(3) after inserting, slightly firmly the soil sample of 22 front end of fused silica glass is compacted by pressing detector handle 12, to prevent
Soil splashes in the presence of laser, affects the generation of Laser induced plasma spectroscopy and collects.
(4) after be compacted soil sample, detector 13 is lifted up into 1～2mm, with the sky to the expansion of plasma 23
Between, smoothly to send Laser induced plasma spectroscopy.
(5) open system Gao Zhongying laser instrument 5 to switch, make soil sample produce plasma 23, obtain Characteristics of Heavy Metals
Spectral line and strength information.
(6) the Characteristics of Heavy Metals spectral line for obtaining is input into into neural network model analysis meter with strength information in computer 7
Software is calculated, calculating is analyzed to heavy metal species in soil sample and content.
(7) finally calculated heavy metal species is shown by display 2 with content.
Claims (2)
1. it is a kind of to be based on the portable variable depth heavy metal content in soil detection means of LIBS, it is characterized in that, including analysis system
Part and explorer portion, analysis system include Gao Zhongying laser instrument, condenser lens, laser pick-off optical fiber head, a spectrogrph
Optical fiber, laser fiber, spectroanalysis instrument；Detector includes spectrum acquisition optical fiber head, No. three condenser lenses, high reflective mirror, laser
Launching fiber head, it is high it is anti-high lens, No. two condenser lenses, fused silica glass；Gao Zhongying laser instrument sends Gao Zhongying laser, passes through
A number condenser lenses converge to laser pick-off optical fiber head, then are coupled into after laser fiber by laser pick-off optical fiber head and are transferred into
Detector, is then derived by laser emitting fiber head, laser through it is high it is anti-high lens, make finally by No. two condenser lenses
Laser converges to soil sample through fused silica glass, and excites plasma, can release laser and lure in plasma cooling procedure
Plasma spectrometry is led, the elemental characteristic spectral line and strength information of heavy metal in soil sample can be included in spectrum, by plasma
The laser induced plasma that body sends dissipates spectrum after the convergence effect of No. two condenser lenses, induced with laser of diverging etc.
Gas ions spectrum gathers the high lens of high anti-, and the diverging spectrum of laser induced plasma is in ultraviolet band, through high anti-
High lens are reflected towards high reflective mirror place direction, then reflex to No. three condenser lenses by high reflective mirror, are then focused on by No. three saturating
Mirror, Laser induced plasma spectroscopy are accumulated spectrum acquisition optical fiber head, and Laser induced plasma spectroscopy is coupled entering light
In spectrometer optical fiber, then by spectrogrph fiber-optic transfer to spectroanalysis instrument, spectroanalysis instrument analyzes multigroup characteristic spectral line and spectral line
Intensity, and display output is carried out with the signal of telecommunication.
2. the portable variable depth heavy metal content in soil detection means of LIBS is based on as claimed in claim 1, be it is characterized in that,
Also include and detector scale and detector handle, be used for：Scale according to corresponding to selected depth finds detector scale,
Detector is inserted in regional soil to be measured, makes upper soll layer align with corresponding scale；Detector handle is firmly pressed after insertion slightly
The soil sample of fused silica glass front end is compacted by handss, to prevent soil from splashing in the presence of laser, impact induced with laser etc. from
The generation of daughter spectrum and collection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621061515.3U CN206074454U (en) | 2016-09-16 | 2016-09-16 | Based on the portable variable depth heavy metal content in soil detection means of LIBS |
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| CN201621061515.3U CN206074454U (en) | 2016-09-16 | 2016-09-16 | Based on the portable variable depth heavy metal content in soil detection means of LIBS |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959500A (en) * | 2017-12-26 | 2019-07-02 | 宇瞻科技股份有限公司 | Spectroradiometer detects header structure |
| CN118067623A (en) * | 2024-04-19 | 2024-05-24 | 吉林大学 | Handheld alloy detection device with embedded linear array scanning function |
-
2016
- 2016-09-16 CN CN201621061515.3U patent/CN206074454U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959500A (en) * | 2017-12-26 | 2019-07-02 | 宇瞻科技股份有限公司 | Spectroradiometer detects header structure |
| CN118067623A (en) * | 2024-04-19 | 2024-05-24 | 吉林大学 | Handheld alloy detection device with embedded linear array scanning function |
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Granted publication date: 20170405 Termination date: 20180916 |