CN105181679A - Device for detecting the content of heavy metal Cr element in soil by laser-induced breakdown spectroscopy - Google Patents
Device for detecting the content of heavy metal Cr element in soil by laser-induced breakdown spectroscopy Download PDFInfo
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- CN105181679A CN105181679A CN201510570150.0A CN201510570150A CN105181679A CN 105181679 A CN105181679 A CN 105181679A CN 201510570150 A CN201510570150 A CN 201510570150A CN 105181679 A CN105181679 A CN 105181679A
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Abstract
The invention discloses a device for detecting the content of heavy metal Cr element in soil by laser-induced breakdown spectroscopy, which comprises an electromagnetic valve A, an air inlet tube, a temperature and air pressure sensor, a soil sample carrier, a feed inlet, an air outlet tube, an electromagnetic valve B, a fused quartz lens A, an optical fiber probe, an optical fiber, an optical fiber connector, a closed laser induction chamber, a spectrometer, a fused quartz lens B, a laser head, an ICCD (Intensified Charge Coupled Device) detector, an external connection cable, a femtosecond laser, a bottom shell, a cover plate and a miniature air conditioner. The laser head, the fused quartz lens B and the soil carrier on the femtosecond laser are located on the shame horizontal straight line, the centers of the soil carrier, the fused quartz lens A and the optical fiber probe are located on the same longitudinal straight line, both ends of the optical fibers are connected with the optical fiber probe and the optical fiber connector, and the ICCD detector, the left side of which is connected with the external connection cable, is mounted on the left side of the spectrometer.
Description
Technical field
The invention belongs to laser equipment field, particularly relate to the device of a kind of Laser-induced Breakdown Spectroscopy detection heavy metal-polluted soil Cr constituent content.
Background technology
Along with human social development, the heavy metal waste that a large amount of commercial production and life produce causes heavy metal pollution of soil, and heavy metal pollution of soil is on the rise in recent years, and the prerequisite of administering heavy metal pollution of soil is the information more adequately obtaining heavy metal pollution of soil degree.
And LIBS (LIBS) be a kind of at present just developing to sample in elemental composition carry out fast, the analytical technology of in situ quantitation detection, effectively utilize LIBS, the accuracy of the information obtaining heavy metal pollution of soil degree can be improved, and general laser induced breakdown spectrograph is 1 standard atmospheric pressure and 22 DEG C of environment temperatures to the requirement of working environment, need a set of pressure-regulating temp-regulating device of extra interpolation, complicated operation, it is large that instrument takes up an area space, is not easy to quick detection.
Therefore be necessary for the problems referred to above, propose the device of a kind of Laser-induced Breakdown Spectroscopy detection of meter heavy metal-polluted soil Cr constituent content, simplify structure, and employing overall package, pressure-regulating temp-regulating device and laser induced breakdown spectrograph are integrated, handled easily with carry, meet scientific research on the spot to the requirement of instrument.
Summary of the invention
For above existing Problems existing, the invention provides the device of a kind of Laser-induced Breakdown Spectroscopy detection heavy metal-polluted soil Cr constituent content, structure is simple, the detection to heavy metal-polluted soil Cr constituent content can be completed fast, and adopt overall package technology, pressure-regulating temp-regulating device and laser induced breakdown spectrograph are integrated, overcomes the requirement of plant running to environment.
Technical program of the present invention lies in:
The invention provides the device of a kind of Laser-induced Breakdown Spectroscopy detection heavy metal-polluted soil Cr constituent content, comprise solenoid valve A, draft tube, temperature and baroceptor, pedotheque supporting plate, charging aperture, escape pipe, solenoid valve B, fused quartz lens A, fibre-optical probe, optical fiber, the joints of optical fibre, induced with laser confined chamber, spectrometer, fused quartz lens B, laser head, ICCD detector, external line, femto-second laser, drain pan, cover plate and mini air conditioner machine, laser head on described femto-second laser, fused quartz lens B and soil supporting plate are on same horizontal straight line, described soil supporting plate, the center of fused quartz lens A and fibre-optical probe is on same longitudinal straight line, described optical fiber two ends are connected with described fibre-optical probe and the described joints of optical fibre, the described ICCD detector that left side is connected with external line is arranged on the left side of described spectrometer.
Further, described draft tube is arranged on the left part of described induced with laser confined chamber and its outer end is connected on described solenoid valve A through described drain pan, and described solenoid valve A is connected with described mini air conditioner machine.
Further, described escape pipe is arranged on the right part of described induced with laser confined chamber and its outer end is connected on described solenoid valve B through described drain pan.
Further, described temperature and baroceptor adopt the composite structure of temperature sensor and baroceptor and it is arranged on the sidewall of described induced with laser confined chamber.
Further, described charging aperture is arranged on described drain pan, and it is in the right of described soil supporting plate.
The present invention is owing to have employed above-mentioned technology, and making it compared with prior art concrete positive beneficial effect is:
1, structure of the present invention is simple, can complete the detection to heavy metal-polluted soil Cr constituent content fast.
2, the present invention adopts overall package technology, pressure-regulating temp-regulating device and laser induced breakdown spectrograph is integrated, and overcomes the requirement of plant running to environment.
3, the present invention can be convenient for carrying and carrying, meets the requirement of scientific research on the spot to instrument.
4, the present invention is easy and simple to handle, safe and reliable, has good market outlook.
5, good product performance of the present invention, long service life.
Accompanying drawing explanation
Fig. 1 is the one-piece construction stereographic map of structure of the present invention.
In figure: 1-solenoid valve A, 2-draft tube, 3-temperature and baroceptor, 4-pedotheque supporting plate, 5-charging aperture, 6-escape pipe, 7-solenoid valve B, 8-fused quartz lens A, 9-fibre-optical probe, 10-optical fiber, the 11-joints of optical fibre, 12-induced with laser confined chamber, 13-spectrometer, 14-fused quartz lens B, 15-laser head, 16-ICCD detector, the external line of 17-, 18-femto-second laser, 19-drain pan, 20-cover plate, 21-mini air conditioner machine.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described, and embodiments of the present invention include but not limited to the following example.
Embodiment: to achieve these goals, the technical solution used in the present invention is as follows:
As shown in Figure 1, the invention provides the device of a kind of Laser-induced Breakdown Spectroscopy detection heavy metal-polluted soil Cr constituent content, comprise solenoid valve A1, draft tube 2, temperature and baroceptor 3, pedotheque supporting plate 4, charging aperture 5, escape pipe 6, solenoid valve B7, fused quartz lens A8, fibre-optical probe 9, optical fiber 10, the joints of optical fibre 11, induced with laser confined chamber 12, spectrometer 13, fused quartz lens B14, laser head 15, ICCD detector 16, external line 17, femto-second laser 18, drain pan 19, cover plate 20 and mini air conditioner machine 21, laser head 15 on femto-second laser 18, fused quartz lens B14 and soil supporting plate 4 are on same horizontal straight line, soil supporting plate 4, the center of fused quartz lens A8 and fibre-optical probe 9 is on same longitudinal straight line, optical fiber 10 two ends are connected with fibre-optical probe 9 and the joints of optical fibre 11, the ICCD detector 16 that left side is connected with external line 17 is arranged on the left side of spectrometer 13.
The present invention is set to further: draft tube 2 is arranged on the left part of induced with laser confined chamber 12 and its outer end is connected on solenoid valve A1 through drain pan 19, and solenoid valve A1 is connected with mini air conditioner machine 21
The present invention is set to further: escape pipe 6 is arranged on the right part of induced with laser confined chamber 12 and its outer end is connected on solenoid valve B7 through drain pan 19
The present invention is set to further: temperature and baroceptor 3 adopt the composite structure of temperature sensor and baroceptor and it is arranged on the sidewall of induced with laser confined chamber 12
The present invention is set to further: charging aperture 5 is arranged on drain pan 19, and it is in the right of soil supporting plate 4.
By adopting technique scheme, when the device of photoinduction breakdown spectral detection heavy metal-polluted soil Cr constituent content provided by the present invention is in normal operating conditions, pedotheque is put on soil supporting plate 4 by charging aperture 5, then charging aperture 5 is closed, temperature and baroceptor 3 induce temperature in confined chamber 12 and air pressure by detection laser, detection signal is passed to exterior PC main frame by wire, external host is according to related setting electromagnetic valve for adjusting A1 and solenoid valve B7, temperature in induced with laser confined chamber 12 and air pressure are regulated, complete editing working environment, then femto-second laser 18 produces laser pulse by the laser head 15 on it, laser pulse produces ionization channels after fused quartz lens B14 focus air, form the femtosecond laser plasma filament of long distance, femtosecond laser plasma filament acts on pedotheque just face, produce the outside radiating plasma spectrum of laser induced plasma, fused quartz lens A8 collects soil plasma emission spectroscopy, then fibre-optical probe 9 is coupled to, entering left side by optical fiber 10 and the joints of optical fibre 11 is again provided with in the spectrometer 13 of ICCD detector 16, by the information interaction of aerial lug 17 with PC main frame, complete the detection to spectrum, thus determine heavy metal-polluted soil Cr constituent content.
Above one embodiment of the present of invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (5)
1. the device of a Laser-induced Breakdown Spectroscopy detection heavy metal-polluted soil Cr constituent content, it is characterized in that: comprise solenoid valve A, draft tube, temperature and baroceptor, pedotheque supporting plate, charging aperture, escape pipe, solenoid valve B, fused quartz lens A, fibre-optical probe, optical fiber, the joints of optical fibre, induced with laser confined chamber, spectrometer, fused quartz lens B, laser head, ICCD detector, external line, femto-second laser, drain pan, cover plate and mini air conditioner machine, laser head on described femto-second laser, fused quartz lens B and soil supporting plate are on same horizontal straight line, described soil supporting plate, the center of fused quartz lens A and fibre-optical probe is on same longitudinal straight line, described optical fiber two ends are connected with described fibre-optical probe and the described joints of optical fibre, the described ICCD detector that left side is connected with external line is arranged on the left side of described spectrometer.
2. the device of a kind of Laser-induced Breakdown Spectroscopy detection heavy metal-polluted soil Cr constituent content according to claim 1, it is characterized in that: described draft tube is arranged on the left part of described induced with laser confined chamber and its outer end is connected on described solenoid valve A through described drain pan, and described solenoid valve A is connected with described mini air conditioner machine.
3. the device of a kind of Laser-induced Breakdown Spectroscopy detection heavy metal-polluted soil Cr constituent content according to claim 1, is characterized in that: described escape pipe is arranged on the right part of described induced with laser confined chamber and its outer end is connected on described solenoid valve B through described drain pan.
4. the device of a kind of Laser-induced Breakdown Spectroscopy detection heavy metal-polluted soil Cr constituent content according to claim 1, is characterized in that: described temperature and baroceptor adopt the composite structure of temperature sensor and baroceptor and it is arranged on the sidewall of described induced with laser confined chamber.
5. the device of a kind of Laser-induced Breakdown Spectroscopy detection heavy metal-polluted soil Cr constituent content according to claim 1, it is characterized in that: described charging aperture is arranged on described drain pan, and it is in the right of described soil supporting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510570150.0A CN105181679A (en) | 2015-09-08 | 2015-09-08 | Device for detecting the content of heavy metal Cr element in soil by laser-induced breakdown spectroscopy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510570150.0A CN105181679A (en) | 2015-09-08 | 2015-09-08 | Device for detecting the content of heavy metal Cr element in soil by laser-induced breakdown spectroscopy |
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| CN105181679A true CN105181679A (en) | 2015-12-23 |
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| CN201510570150.0A Pending CN105181679A (en) | 2015-09-08 | 2015-09-08 | Device for detecting the content of heavy metal Cr element in soil by laser-induced breakdown spectroscopy |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403542A (en) * | 2015-12-24 | 2016-03-16 | 北京农业智能装备技术研究中心 | Portable soil nutrient detection system and method thereof |
| CN109507391A (en) * | 2018-12-04 | 2019-03-22 | 南通大学 | A kind of detection device of the heavy metal content in soil based on DDS |
| CN109884034A (en) * | 2019-01-31 | 2019-06-14 | 广东朗研科技有限公司 | A kind of method and device of femtosecond plasma grating induced breakdown spectroscopy detection |
| CN110057795A (en) * | 2019-03-29 | 2019-07-26 | 广东朗研科技有限公司 | A kind of method and device of the spectral detection of femtosecond plasma breakdown ionization |
| CN112161958A (en) * | 2020-10-14 | 2021-01-01 | 青岛佳明测控科技股份有限公司 | Plug-in type soil all-element on-site detector |
-
2015
- 2015-09-08 CN CN201510570150.0A patent/CN105181679A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403542A (en) * | 2015-12-24 | 2016-03-16 | 北京农业智能装备技术研究中心 | Portable soil nutrient detection system and method thereof |
| CN105403542B (en) * | 2015-12-24 | 2019-03-08 | 北京农业智能装备技术研究中心 | A kind of portable soil nutrient detection system and method |
| CN109507391A (en) * | 2018-12-04 | 2019-03-22 | 南通大学 | A kind of detection device of the heavy metal content in soil based on DDS |
| CN109507391B (en) * | 2018-12-04 | 2021-04-06 | 南通大学 | Soil heavy metal content detection device based on DDS |
| CN109884034A (en) * | 2019-01-31 | 2019-06-14 | 广东朗研科技有限公司 | A kind of method and device of femtosecond plasma grating induced breakdown spectroscopy detection |
| CN109884034B (en) * | 2019-01-31 | 2021-07-13 | 广东朗研科技有限公司 | Method and device for detecting femtosecond plasma grating induced breakdown spectrum |
| CN110057795A (en) * | 2019-03-29 | 2019-07-26 | 广东朗研科技有限公司 | A kind of method and device of the spectral detection of femtosecond plasma breakdown ionization |
| CN110057795B (en) * | 2019-03-29 | 2022-02-01 | 广东朗研科技有限公司 | Spectrum detection method and device for breakdown ionization of femtosecond plasma |
| CN112161958A (en) * | 2020-10-14 | 2021-01-01 | 青岛佳明测控科技股份有限公司 | Plug-in type soil all-element on-site detector |
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Application publication date: 20151223 |
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| WD01 | Invention patent application deemed withdrawn after publication |