CN207730672U - A kind of laser induced breakdown spectroscopy teaching experimental - Google Patents
A kind of laser induced breakdown spectroscopy teaching experimental Download PDFInfo
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- CN207730672U CN207730672U CN201820044575.7U CN201820044575U CN207730672U CN 207730672 U CN207730672 U CN 207730672U CN 201820044575 U CN201820044575 U CN 201820044575U CN 207730672 U CN207730672 U CN 207730672U
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- induced breakdown
- breakdown spectroscopy
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Abstract
The utility model provides a kind of laser induced breakdown spectroscopy teaching experimental, belong to the technical field of atomic emission spectrum investigating teaching, including tool housing, pulse laser, optical path transmission device, objective table, monochromator, detector and circuit control and display system；It is in 45 degree of 45 degree of plane mirrors, convex lens and beam splitter that optical path transmission device, which includes reflecting surface with the laser of pulse laser transmitting,；Monochromator includes the first adjustable slit, the first plane mirror, the first concave mirror, reflecting grating, the second concave mirror, the second plane mirror and the second adjustable slit；And corresponding first movable panel in objective table region and the second movable panel corresponding with monochromator region is provided on tool housing.The main light path part of the experiment instrument has carried out open by design, and user not only can carry out composition spectrum analysis to sample, while can experience adjusting light path personally, to further deepen the understanding to LIBS technologies and grasp.
Description
Technical field
The utility model is related to the technical fields of atomic emission spectrum investigating teaching, are hit more particularly to a kind of induced with laser
Wear spectral technique teaching experimental.
Background technology
Laser induced breakdown spectroscopy（Laser Induced Breakdown Spectroscopy, abbreviation LIBS）Detection
It is a kind of elemental composition detection technique belonging to atomic emission spectrum.The basic functional principle of LIBS technologies is by high energy pulse
Laser focuses on sample surfaces, and excitation sample atoms form plasma and inspire fluorescence；It is surveyed using spectrometer or monochromator
The fluorescence that amount plasma is sent out, by that can realize elemental composition and composition to sample to the analysis of fluorescent places and intensity
Content carries out qualitative and quantitative analysis.The technology can carry out composition detection to gas, liquid and solid, not only in basic science
There is important use value in research, be also extensively used for industrial production detection, medicine bioengineering research, national defence peace in recent years
Entirely, the actual productions sphere of life such as atmospheric environment detection.
As a kind of spectrographic detection and composition detection means, laser optics involved in LIBS technologies, atomic and molecular physics,
The physical knowledge of spectroscopy etc. is a degree of integration height, it is wide to cover knowledge, with very strong innovation and expansion
Technology, therefore it is extremely important to grasp its operation principle.And most of LIBS detectors are mainly scientific research institutions or factory at present
Enterprise provides finished product test instrument, and for particular detection object designs, although easy to operate, it is accurate convenient to measure, instrument sheet
As the closed design of integrated form, fractionation explanation and flexible operating are cannot achieve in teaching, is unfavorable for undergraduate to its principle
Understanding and grasp, and instrument integrated level itself is high, expensive, is difficult to undergraduate practical teaching.
Utility model content
The purpose of this utility model is to provide a kind of laser induced breakdown spectroscopy teaching experimental.The master of the experiment instrument
Light path part is wanted to carry out open by design, user can not only carry out sample composition spectrum analysis, while can be with
The processes such as adjusting light path, including spectrum induction excitation, the light splitting of monochromator diffraction, detector detection are experienced personally, to further deepen
Understanding and grasp to LIBS technologies.
The utility model provides a kind of laser induced breakdown spectroscopy teaching experimental, including tool housing, pulse swash
Light device, optical path transmission device, objective table, monochromator, detector and circuit control and display system；Optical path transmission device includes anti-
The laser for penetrating the transmitting of face and pulse laser is in 45 degree of 45 degree of plane mirrors, convex lens and beam splitter；Monochromator includes the
One adjustable slit, the first plane mirror, the first concave mirror, reflecting grating, the second concave mirror, the second plane mirror and second are adjustable narrow
Seam；The order of propagation of light is in tool housing：The laser of pulse laser transmitting is passed through by the reflection of 45 degree of plane mirrors
It is focused on after convex lens on the sample to be tested on objective table, the atom of sample to be tested is excited to form plasma and launch glimmering
Light, fluorescence pass through the first adjustable slit flat by first by being divided into reflected fluorescent light and transmission fluorescence, transmission fluorescence after beam splitter
Face mirror is reflected on the first concave mirror, is formed directional light after the first concave mirror and is reflected in reflecting grating, through anti-
After penetrating optical grating diffraction, the light for transmiting different wave length in fluorescence is detached and is reflected to the second concave mirror, anti-through the second concave mirror
It is mapped to the second plane mirror, the second adjustable slit is reflected and passed through through the second plane mirror, the light projected through the second adjustable slit is by institute
State detector detection；Pulse laser, 45 degree of plane mirrors, convex lens, beam splitter, objective table, the first adjustable slit, first
Plane mirror, the first concave mirror, reflecting grating, the second concave mirror, the second plane mirror and the second adjustable slit edge in tool housing
The order of propagation for light is set gradually；Circuit control and display system include the pulse laser control being connect with pulse laser
Circuit, the pulse laser control panel being connect with pulse laser control circuit, the wavelength being connect with reflecting grating display electricity
Road, the wavelength display panel being connect with wavelength display circuit, the detector detecting voltage display circuit being connect with detector and spy
Survey device operating voltage display circuit, the detector detecting voltage display panel being connect with detector detecting voltage display circuit and
The detector operating voltage display panel being connect with detector operating voltage display circuit；It is provided on tool housing and objective table
Corresponding first movable panel in region and the second movable panel corresponding with monochromator region.
Further, laser induced breakdown spectroscopy teaching experimental further includes for driving convex lens along 45 degree
The translation track of the direction movement of plane mirror reflected light；The first end of translation track be located in tool housing and be provided with
The connecting rod of convex lens connection, second end are located at outside tool housing and are provided with the first handwheel, and connecting rod and the first handwheel pass through
The gear set being arranged on translation track is connected with drive link.
Further, the mobile accuracy of translation track is 0.1mm.
Further, laser induced breakdown spectroscopy teaching experimental further includes for the light after convex lens focus
The objective table angular adjustment component of rotation in surface objective table where line；Objective table angular adjustment component includes being connect with objective table
Cup dolly and first end is connect with cup dolly by base gear, second end is located at outside tool housing and is provided with
The installation axle of two handwheels；The gear set and drive link of connect base gear and the second handwheel are provided in installation axle.
Further, be provided on objective table for drive sample to be tested using perpendicular to the direction of measured surface as shaft side
To the stepper motor of rotation；The stepper motor tune knob of control stepper motor rotating speed is provided on tool housing.
Further, laser induced breakdown spectroscopy teaching experimental further includes the compound of adjusting reflecting grating angle
Gear turntable；Compound gear turntable has the spiral micrometer handle extended to outside tool housing.
Further, it is that 632.8nm is mono- that laser induced breakdown spectroscopy teaching experimental, which further includes the wavelength that can be sent out,
The red laser of coloured light；The monochromatic light that red laser is sent out is reflected into monochromator by beam splitter.
Further, laser induced breakdown spectroscopy teaching experimental further includes being reflected by beam splitter for receiving
Fluorescence or by beam splitter transmission monochromatic fiber coupler；Fiber coupler has can for control and receive light intensity
Light modulation door screen, tail end are furnished with the fiber adapters port being located on tool housing.
Further, laser induced breakdown spectroscopy teaching experimental, further include to pulse laser, circuit control and
Display system, stepper motor, red laser and fiber coupler carry out power supply and integrate and provide the power supply servo-drive system of electric power.
Further, detector is model cr131 photomultipliers, and maximum working voltage 1200V effectively detects wavelength model
Enclose 300-900nm.
Compared with prior art, the advantage of the utility model is：
1, experiment instrument is simple in structure, easy to operate；
2, since light path operation part uses open layout designs, visual and operability is high, substantially increases
The manipulative ability and the ability of practice of user；
3, user can be in the adjusting to the teaching experimental light path, and to sample spectra detection and constituent analysis
In the process, deepen the understanding to monochromator splitting principle.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Other attached drawings are obtained, wherein：
Fig. 1 is the internal structure schematic diagram of laser induced breakdown spectroscopy teaching experimental provided in this embodiment；
Fig. 2 is the outside drawing of laser induced breakdown spectroscopy teaching experimental shown in Fig. 1.
Label：1- tool housings；2- pulse lasers；3- objective tables；4- detectors；5-45 degree plane mirrors；6- is convex
Lens；7- beam splitters；The first adjustable slits of 8-；The first plane mirrors of 9-；The first concave mirrors of 10-；11- reflecting gratings；12- second is recessed
Face mirror；The second plane mirrors of 13-；The second adjustable slits of 14-；15- pulse laser control panels；16- wavelength display panels；17-
Detector detecting voltage display panel；18- detector operating voltage display panels；The first movable panels of 19-；The second activities of 20-
Top plate；21- translation tracks；22- connecting rods；The first handwheels of 23-；24- cup dollies；The second handwheels of 25-；26- installation axles；27-
Stepper motor tune knob；28- compound gear turntables；29- red lasers；30- red lasers switch；31- fiber couplers；
32- detector voltage adjusters；33- power supply servo-drive systems.
Specific implementation mode
The present embodiment provides a kind of laser induced breakdown spectroscopy teaching experimentals, as depicted in figs. 1 and 2, including instrument
Device shell 1, pulse laser 2, optical path transmission device, objective table 3, monochromator, detector 4 and circuit control and display system；
45 degree plane mirrors 5, convex lens 6 of the laser that optical path transmission device includes reflecting surface to be emitted with pulse laser 2 in 45 degree
With beam splitter 7；Monochromator is recessed including the first adjustable slit 8, the first plane mirror 9, the first concave mirror 10, reflecting grating 11, second
Face mirror 12, the second plane mirror 13 and the second adjustable slit 14；The order of propagation of light is in tool housing 1：Pulse laser 2 emits
Laser by the reflection of 45 degree of plane mirrors 5, focused on after convex lens 6 on the sample to be tested 100 on objective table 3,
The atom of sample to be tested 100 is excited to form plasma and launch fluorescence, and fluorescence after beam splitter 7 by being divided into reflected fluorescent light
With transmission fluorescence, transmission fluorescence passes through the first adjustable slit 8 to be reflected on the first concave mirror 10 by the first plane mirror 9, through the
Directional light is formed after the reflection of one concave mirror 10 and is reflected in reflecting grating 11, after 11 diffraction of reflecting grating, transmits fluorescence
The light of middle different wave length is detached and is reflected to the second concave mirror 12, and the second plane mirror 13 is reflected into through the second concave mirror 12,
Reflect and pass through the second adjustable slit 14, the light projected through the second adjustable slit 14 to be detected by detector 4 through the second plane mirror 13；
2,45 degree of plane mirrors 5 of pulse laser, convex lens 6, beam splitter 7, objective table 3, the first adjustable slit 8, the first plane mirror
9, the first concave mirror 10, reflecting grating 11, the second concave mirror 12, the second plane mirror 13 and the second adjustable slit 14 are in tool housing
It is set gradually along the order of propagation of light in 1；Circuit control and display system include the pulse laser being connect with pulse laser 2
Device control circuit, is connect with reflecting grating 11 the pulse laser control panel 15 being connect with pulse laser control circuit
Wavelength display circuit, the wavelength display panel 16 being connect with wavelength display circuit, the detector detecting voltage being connect with detector 4
Display circuit and detector operating voltage display circuit, the detector detecting voltage being connect with detector detecting voltage display circuit
Display panel 17 and the detector operating voltage display panel 18 being connect with detector operating voltage display circuit；Tool housing
It is provided on 1 and corresponding first movable panel 19 in 3 region of objective table and corresponding with monochromator region second
Movable panel 20.
Teaching experimental provided in this embodiment has carried out open by design, opens the first movable panel 19, can replace
Sample to be tested 100；It opens 20 observable of the second movable panel and adjusts monochromator, improve visual and operability height, greatly
Ground increases the manipulative ability and the ability of practice of user, deepens the understanding to monochromator splitting principle.
Further, as depicted in figs. 1 and 2, there is pulse laser control panel 15 touch screen, touch screen to be placed in instrument
On shell 1, the output frequency and operating voltage of pulse laser 2 can be changed by the touch screen, to change output pulse
The repetition rate and energy of laser.
Further, as depicted in figs. 1 and 2, laser induced breakdown spectroscopy teaching experimental further includes for driving
The translation track 21 that convex lens 6 is moved along the direction of 45 degree of 5 reflected lights of plane mirror；The first end of translation track 21 is located at
In tool housing 1 and it is provided with the connecting rod 22 being connect with convex lens 6, second end is located at tool housing 1 and is provided with first-hand
Wheel 23, connecting rod 22 is connected by the way that the gear set on translation track 1 is arranged with drive link with the first handwheel 23.Pass through rotation
First handwheel 23 can drive convex lens 6 to be moved along the direction of 45 degree of 5 reflected lights of plane mirror, to ensure pulse laser
The laser that device 2 emits can focus on the surface of sample to be tested 100 just.
Further, the mobile accuracy of translation track 21 is 0.1mm.
Further, as depicted in figs. 1 and 2, laser induced breakdown spectroscopy teaching experimental further includes for convex
The objective table angular adjustment component of rotation in surface objective table 3 where light after the focusing of lens 6；Objective table angular adjustment component
Include the cup dolly 24 being connect with objective table 3 and first end connect by base gear with cup dolly 24, second end position
Installation axle 26 that is outer in tool housing 1 and being provided with the second handwheel 25；Connect base gear and second are provided in installation axle 26
The gear set and drive link of handwheel 25.By rotating the second handwheel 25, the angle of cup dolly 24 can be changed, waited for change
Sample 100 excites the reflection direction of fluorescence.
Further, it is provided on objective table 3 for driving sample to be tested 100 to be to turn perpendicular to the direction of measured surface
Axis direction rotation stepper motor, to avoid high-energy pulse laser long duration of action in the same point on sample to be tested 100
And punctures sample to be tested 100 and influence measurement result；As depicted in figs. 1 and 2, it is provided with control stepper motor on tool housing 1
The stepper motor tune knob 27 of rotating speed.
Further, sample to be tested 100 generally requires that oblate cylinder body shape is made.
Further, as depicted in figs. 1 and 2, laser induced breakdown spectroscopy teaching experimental further includes adjusting reflection
The compound gear turntable 28 of 11 angle of grating；Compound gear turntable 28 has the spiral micrometer handle extended to outside tool housing 1.
Change the angle of reflecting grating 11 by rotating spiral handle, so that the light of different wave length passes through the second adjustable slit 14.Spiral shell
Rotation micrometer rotatable handle displacement corresponds to the wavelength change of spectrum, and is shown in wavelength display panel 16 by wavelength display circuit,
Its wavelength change precision shown is 0.1nm.The adjusting method has been used as mature technology, is widely used in monochromator.
Further, as depicted in figs. 1 and 2, laser induced breakdown spectroscopy teaching experimental further includes that can send out
Wavelength is the monochromatic red lasers of 632.8nm 29；The monochromatic light that red laser 29 is sent out is reflected by beam splitter 7
Monochromator.Red laser 29 is used as standard sources, can be used for the calibration and calibration of monochromator, and analysis sample spectrum
Reference light.The calibration of monochromator and calibration detailed process are：By pulse laser control panel 15, pulse laser is set
Control circuit operating mode is to close, and 2 power supply of break impulse laser opens red laser 29, and red laser 29 is sent out
Light after the reflection of beam splitter 7, into monochromator, by rotating the spiral micrometer handwheel of 28 extension of compound gear turntable, make spy
It surveys the light intensity that device 4 detects and reaches maximum, i.e., the voltage shown on detector detecting voltage display panel 17 reaches maximum value, at this time
The wavelength shown on wavelength display panel 16 indicates that monochromator working condition is normal if it is 632.8nm；If it is not, then needing
Carry out wavelength calibration.Calibration method, the spiral micrometer handwheel of 28 extension of rotation compound gear turntable to wave wavelength display panel
The wavelength shown on 16 is 632.8nm, and the voltage shown on detector detecting voltage display panel 17 at this time has not been maximum
Value opens the second movable panel 20, adjusts the reflection angle of the second concave mirror 12 and the second plane mirror 13, and feux rouges is made to penetrate second
The light of adjustable slit 14 reaches most strong, i.e., the voltage shown on detector detecting voltage display panel 17 reaches maximum value, calibration
It finishes.
Further, as depicted in figs. 1 and 2, it is additionally provided with red laser switch 30 on tool housing 1.
Further, as depicted in figs. 1 and 2, laser induced breakdown spectroscopy teaching experimental further includes for receiving
The fluorescence reflected by beam splitter 7 or the monochromatic fiber coupler 31 transmitted by beam splitter 7；Fiber coupler 31 has
Adjustable diaphragm for controlling and receiving light intensity, tail end are furnished with the fiber adapters port being located on tool housing 1.Fiber adapters port
It is placed outside on tool housing 1, the spectrum input light spectrometer of collection is detected by fluorescence spectrum and red light wavelength, conduct by optical fiber
Lookout assist can be used for judging the standard degree that the teaching experimental detects sample composition spectrum.
Further, as depicted in figs. 1 and 2, circuit control and display system further include working electricity for adjusting detector 4
The detector voltage adjuster 32 of pressure.The voltage signal of detector 4 is input to detector detecting voltage display panel by conducting wire
It is shown on 17, the operating voltage of detector 4 can be changed by adjusting detector voltage adjuster 32, while its operating voltage is shown
On detector operating voltage display panel 18, to ensure that detector 4 can be most when to the fluorescence spectral measurings of different samples
Good state measurement.
Further, as depicted in figs. 1 and 2, laser induced breakdown spectroscopy teaching experimental further includes swashing to pulse
Light device 2, circuit control and display system, stepper motor, red laser 29 and fiber coupler 31 carry out power supply and integrate and carry
For the power supply servo-drive system 33 of electric power.
Further, detector 4 is model cr131 photomultipliers, and maximum working voltage 1200V effectively detects wavelength
Range 300-900nm.
It these are only the embodiments of the present invention, it does not limit the scope of the patent of the present invention, every utilization
Equivalent structure or equivalent flow shift made by the utility model description is applied directly or indirectly in other relevant
Technical field is equally included in the patent within the scope of the utility model.
Claims (10)
1. a kind of laser induced breakdown spectroscopy teaching experimental, it is characterised in that：Including tool housing（1）, pulse laser
Device（2）, optical path transmission device, objective table（3）, monochromator, detector（4）With circuit control and display system；
It is in 45 degree of 45 degree of plane reflections that the optical path transmission device, which includes reflecting surface with the laser of pulse laser transmitting,
Mirror（5）, convex lens（6）And beam splitter（7）；
The monochromator includes the first adjustable slit（8）, the first plane mirror（9）, the first concave mirror（10）, reflecting grating（11）、
Second concave mirror（12）, the second plane mirror（13）With the second adjustable slit（14）；
The tool housing（1）The order of propagation of interior light is：The pulse laser（2）The laser of transmitting is anti-by 45 degree of planes
Penetrate mirror（5）Reflection, pass through the convex lens（6）After focus on the objective table（3）On sample to be tested（100）On, it is described
Sample to be tested（100）Atom be excited to form plasma and launch fluorescence, fluorescence passes through the beam splitter（7）After be divided into
Reflected fluorescent light and transmission fluorescence, transmission fluorescence pass through the first adjustable slit（8）By the first plane mirror（9）It is reflected into the first concave surface
Mirror（10）On, through the first concave mirror（10）Directional light is formed after reflection and is reflected to reflecting grating（11）On, through reflecting grating
（11）After diffraction, the light for transmiting different wave length in fluorescence is detached and is reflected to the second concave mirror（12）, through the second concave mirror
（12）It is reflected into the second plane mirror（13）, through the second plane mirror（13）It reflects and passes through the second adjustable slit（14）, can through second
Adjust slit（14）The light of injection is by the detector（4）Detection；
The pulse laser（2）, 45 degree of plane mirrors（5）, convex lens（6）, beam splitter（7）, objective table（3）, first can
Adjust slit（8）, the first plane mirror（9）, the first concave mirror（10）, reflecting grating（11）, the second concave mirror（12）, the second plane mirror
（13）With the second adjustable slit（14）In the tool housing（1）The interior order of propagation along the light is set gradually；
The circuit control and display system include and the pulse laser（2）The pulse laser control circuit of connection, with
The pulse laser control panel of the pulse laser control circuit connection（15）And the reflecting grating（11）The wave of connection
Long display circuit, the wavelength display panel being connect with the wavelength display circuit（16）And the detector（4）The detection of connection
Device detecting voltage display circuit and detector operating voltage display circuit are connect with the detector detecting voltage display circuit
Detector detecting voltage display panel（17）And the detector work electricity being connect with the detector operating voltage display circuit
Press display panel（18）；
The tool housing（1）On be provided with and the objective table（3）Corresponding first movable panel in region（19）And
The second movable panel corresponding with the monochromator region（20）.
2. laser induced breakdown spectroscopy teaching experimental according to claim 1, which is characterized in that further include being used for
Drive the convex lens（6）Along 45 degree of plane mirrors（5）The translation track of the direction movement of reflected light（21）；
The translation track（21）First end be located at the tool housing（1）It is interior and be provided with and the convex lens（6）Connection
Connecting rod（22）, second end is located at the tool housing（1）Outside and it is provided with the first handwheel（23）, the connecting rod（22）With
First handwheel（23）By being arranged in the translation track（21）On gear set connected with drive link.
3. laser induced breakdown spectroscopy teaching experimental according to claim 2, which is characterized in that the translation rail
Road（21）Mobile accuracy be 0.1mm.
4. laser induced breakdown spectroscopy teaching experimental according to claim 2 or 3, which is characterized in that further include
For in convex lens（6）Objective table described in rotation in surface where light after focusing（3）Objective table angular adjustment component；
The objective table angular adjustment component includes and the objective table（3）The cup dolly of connection（24）And first end and institute
State cup dolly（24）It is located at the tool housing by base gear connection, second end（1）Outside and it is provided with the second handwheel
（25）Installation axle（26）；
The installation axle（26）Inside it is provided with the connection base gear and the second handwheel（25）Gear set and drive link.
5. laser induced breakdown spectroscopy teaching experimental according to claim 4, which is characterized in that the objective table
（3）On be provided with for driving sample to be tested（100）Using the stepping electricity rotated as rotor shaft direction perpendicular to the direction of measured surface
Machine；
The tool housing（1）On be provided with the stepper motor tune knob for controlling the stepper motor rotating speed（27）.
6. laser induced breakdown spectroscopy teaching experimental according to claim 5, which is characterized in that further include adjusting
Reflecting grating（11）The compound gear turntable of angle（28）；
The compound gear turntable（28）With extending to the tool housing（1）Outer spiral micrometer handle.
7. laser induced breakdown spectroscopy teaching experimental according to claim 6, which is characterized in that further include that can send out
The wavelength gone out is the monochromatic red lasers of 632.8nm（29）；
The red laser（29）The monochromatic light sent out passes through the beam splitter（7）It is reflected into the monochromator.
8. laser induced breakdown spectroscopy teaching experimental according to claim 7, which is characterized in that further include being used for
It receives and passes through the beam splitter（7）The fluorescence of reflection passes through the beam splitter（7）The monochromatic fiber coupler of transmission
（31）；
The fiber coupler（31）With the adjustable diaphragm for controlling and receiving light intensity, tail end, which is furnished with, is located at the tool housing
（1）On fiber adapters port.
9. laser induced breakdown spectroscopy teaching experimental according to claim 8, which is characterized in that further include to institute
State pulse laser（2）, circuit control and display system, stepper motor, red laser（29）And fiber coupler（31）Into
Row power supply integrates and provides the power supply servo-drive system of electric power（33）.
10. laser induced breakdown spectroscopy teaching experimental according to claim 1, which is characterized in that the detection
Device（4）For model cr131 photomultipliers, maximum working voltage 1200V effectively detects wave-length coverage 300-900nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820044575.7U CN207730672U (en) | 2018-01-11 | 2018-01-11 | A kind of laser induced breakdown spectroscopy teaching experimental |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820044575.7U CN207730672U (en) | 2018-01-11 | 2018-01-11 | A kind of laser induced breakdown spectroscopy teaching experimental |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109521000A (en) * | 2019-01-24 | 2019-03-26 | 中国工程物理研究院流体物理研究所 | Grating beam splitting formula while multiple spot laser induced breakdown spectroscopy measuring system and method |
| WO2020076921A1 (en) * | 2018-10-11 | 2020-04-16 | Rigaku Analytical Devices, Inc. | Device for calibrating a spectrometer |
| CN111521297A (en) * | 2020-04-28 | 2020-08-11 | 北京航空航天大学 | Spectrum-temperature calibration device and method suitable for phosphorescence ratio light intensity method |
-
2018
- 2018-01-11 CN CN201820044575.7U patent/CN207730672U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020076921A1 (en) * | 2018-10-11 | 2020-04-16 | Rigaku Analytical Devices, Inc. | Device for calibrating a spectrometer |
| CN109521000A (en) * | 2019-01-24 | 2019-03-26 | 中国工程物理研究院流体物理研究所 | Grating beam splitting formula while multiple spot laser induced breakdown spectroscopy measuring system and method |
| CN109521000B (en) * | 2019-01-24 | 2023-08-08 | 中国工程物理研究院流体物理研究所 | Grating beam-splitting type simultaneous multi-point laser-induced breakdown spectroscopy measurement system and method |
| CN111521297A (en) * | 2020-04-28 | 2020-08-11 | 北京航空航天大学 | Spectrum-temperature calibration device and method suitable for phosphorescence ratio light intensity method |
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Granted publication date: 20180814 Termination date: 20210111 |