CN107314814B - The spectroscopic light source system of uniform surface-emitting type gas absorption cell - Google Patents
The spectroscopic light source system of uniform surface-emitting type gas absorption cell Download PDFInfo
- Publication number
- CN107314814B CN107314814B CN201710354258.5A CN201710354258A CN107314814B CN 107314814 B CN107314814 B CN 107314814B CN 201710354258 A CN201710354258 A CN 201710354258A CN 107314814 B CN107314814 B CN 107314814B
- Authority
- CN
- China
- Prior art keywords
- glass chamber
- lamp
- shell
- gas
- diffusion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 19
- 239000011521 glass Substances 0.000 claims abstract description 51
- 238000009792 diffusion process Methods 0.000 claims abstract description 28
- 238000000576 coating method Methods 0.000 claims abstract description 26
- 239000011248 coating agent Substances 0.000 claims abstract description 23
- 238000001816 cooling Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 claims abstract description 8
- 238000001228 spectrum Methods 0.000 claims description 5
- 238000010422 painting Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 51
- 230000003287 optical effect Effects 0.000 description 4
- 230000003595 spectral effect Effects 0.000 description 4
- 239000002699 waste material Substances 0.000 description 3
- 238000000862 absorption spectrum Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000010415 tropism Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/10—Arrangements of light sources specially adapted for spectrometry or colorimetry
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a kind of spectroscopic light source systems of uniform surface-emitting type gas absorption cell, it includes shell, diffusion coating, lamp, lamp radiator, water cooling tube, light-emitting window, glass chamber etc., diffusion coating is located at inner surface of outer cover, all it is connected with light-emitting window on two shells, two diffusion coatings, diffusion coating is connected with glass chamber, on the shell, on the shell, lamp is connected with lamp radiator for multiple lamp radiator installations for multiple water cooling tube installations.The present invention can be improved the energy of outlet light, reduce cost, reduce volume, saving gas.
Description
Technical field
The present invention relates to a kind of spectroscopic light source systems, more particularly to a kind of spectrum of uniform surface-emitting type gas absorption cell
Light-source system.
Background technique
Gas absorption cell can provide the radiation with object gas absorption characteristic for atmosphere main greenhouse gas detector
Source simulates the spectral characteristics of radiation of in-orbit observation atmosphere, can be used for instrument spectral calibration, realize spectral resolution in full spectral coverage
With the detection and verifying of instrumental line shape function, while accurate control carbonate concentration and temperature, to carry out the analysis of instrument detectivity
And target gas levels inverting provides basic data.Existing gas absorption cell is typically based on traditional White (White)
The improvement in pond and Herriott (Maurice Herriott) pond, it is main to enable optical path multiple reflections in gas compartment realize effectively by reflecting mirror
The extension of light path, testing light source are located at gas compartment light inlet, and detection instrument is located at gas compartment light-emitting window.
The prior art has the following deficiencies: that one, gas compartment and light source are discrete, and volume is larger, at high cost, not portable, move
It is dynamic；Two, light source passes through absorption cell optical alignment and multiple reflections, and capacity usage ratio is lower, and light-emitting window energy is weaker, influences to detect
Device signal-to-noise ratio；Three, due to using collimation and multiple mirror-reflection, at absorption cell light-emitting window six subject to directional light, there is obvious side
Tropism has higher requirements to instrument alignment precision, influences repetition stability；Four, because gas building volume is larger, biggish gas is needed
The scale of construction can complete the replacement of gaseous sample, cause a degree of waste, while there are dead angles to lead to other in gas compartment
The residual of gas influences the degree of purity for testing gas.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of spectroscopic light source systems of uniform surface-emitting type gas absorption cell
System can be improved the energy of outlet light, reduce cost, reduce volume, saving gas.
The present invention is to solve above-mentioned technical problem by following technical proposals: a kind of uniform surface-emitting type gas absorption
The spectroscopic light source system in pond comprising shell, diffusion coating, lamp, lamp radiator, water cooling tube, light-emitting window, glass chamber, air inlet
Valve, outlet valve, pressure gauge, air inlet, gas outlet, diffusion coating are located at inner surface of outer cover, and two shells, two diffusions apply
All it is connected with light-emitting window on layer, diffusion coating is connected with glass chamber, and multiple water cooling tubes are installed on the shell, multiple lamp radiators
On the shell, lamp is connected with lamp radiator for installation, diffuses coating, glass chamber and is all connected with lamp, air inlet, gas outlet all with glass
Glass cavity is connected, and air inlet is located at the top of gas outlet, and air intake valve is connected by glass chamber with air inlet, and outlet valve is logical
It crosses glass chamber to be connected with gas outlet, pressure gauge is mounted on glass chamber, and pressure gauge is located at the lower section of shell.
Preferably, the shell is equipped with multiple circular holes.
Preferably, the air inlet, gas outlet shape be all thin tube-like.
Preferably, the shape of the glass chamber is spherical.
Preferably, the glass chamber is equipped with multiple grooves.
Preferably, gap is equipped between diffusion coating and the glass chamber.
Preferably, the shell, diffusion coating, lamp, lamp radiator and water cooling tube form an integrating sphere.
Preferably, the glass chamber, air intake valve, outlet valve and pressure gauge form a gas cell.
Preferably, the glass chamber is higher than 90% in the transmitance of institute's inflatable body absorption bands and spectrum is flat, simultaneously
It is lower than 0.1% in Thermal infrared bands transmitance.
The positive effect of the present invention is that: the present invention can effectively be disappeared by the way that glass chamber to be placed in integrating sphere
In addition to the defects of conventional gas absorption pond body product is big, at high cost, light-emitting window energy dropoff, gas waste and gas residue；Benefit
Its equivalent optical path length and larger volume are made by the integrated design of gas cell, integrating sphere with the multiple diffusing reflection principle of integrating sphere
The optical length of absorption cell is suitable, and the light that integrating sphere light-emitting window issues directly includes the absorption spectrum information of internal institute's inflatable body,
It realizes overall structure miniaturization, lightweight, reduces overall cost, while reducing gas waste；Integrating sphere imitates the integral of light
Fruit effectively improves capacity usage ratio, and light-emitting window energy is higher；Integrating sphere self-characteristic determines that its emergent light has good face equal
Even property, angle uniformity can be effectively reduced instrument to alignment request, improve repetition stability；The spherical body of gas cell without dead angle,
It is not easy residual gas, gas degree of purity is guaranteed.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
Present pre-ferred embodiments are provided with reference to the accompanying drawing, in order to explain the technical scheme of the invention in detail.
As shown in Figure 1, the spectroscopic light source system of the uniform surface-emitting type gas absorption cell of the present invention includes shell 1, diffusion painting
Layer 2, lamp 3, lamp radiator 4, water cooling tube 5, light-emitting window 6, glass chamber 7, air intake valve 8, outlet valve 9, pressure gauge 10, air inlet
Mouthful 11, gas outlet 12, diffusion coating 2 are located at 1 inner surface of shell, on two shells, 1, two diffusion coating 2 all with 6 phase of light-emitting window
Even, diffusion coating 2 is connected with glass chamber 7, and multiple water cooling tubes 5 are mounted on shell 1, and multiple lamp radiators 4 are mounted on shell 1
On, lamp 3 is connected with lamp radiator 4, and diffusion coating 2, glass chamber 7 are all connected with lamp 3, air inlet 11, gas outlet 12 all with glass
Glass cavity 7 is connected, and air inlet 11 is located at the top of gas outlet 12, and air intake valve 8 is connected by glass chamber 7 with air inlet 11,
Outlet valve 9 is connected by glass chamber 7 with gas outlet 12, and pressure gauge 10 is mounted on glass chamber 7, and pressure gauge 10 is located at outer
The lower section of shell 1.
The shell 1 is equipped with multiple circular holes so that it is convenient to fixed.
The air inlet 11, gas outlet 12 shape be all thin tube-like so that it is convenient to discharge gas.
The shape of the glass chamber 7 be it is spherical, in this way without dead angle, be not easy residual gas, guarantee gas degree of purity.
The glass chamber 7 is equipped with multiple grooves so that it is convenient to which the installation of lamp 3, improves the brightness of lamp 3.
It is equipped with gap between the diffusion coating 2 and glass chamber 7, can prevent from shrinking because of diffusion coating 2 in this way, expand
Caused glass chamber 7 ruptures.
The shell 1, diffusion coating 2, lamp 3, lamp radiator 4 and water cooling tube 5 form an integrating sphere, are effectively reduced in this way
Instrument improves repetition stability to alignment request.
The glass chamber 7, air intake valve 8, outlet valve 9 and pressure gauge 10 form a gas cell, can mention in this way
High gas degree of purity.
The glass chamber is higher than 90% in the transmitance of institute's inflatable body absorption bands and spectrum is flat, while in thermal infrared
Wave band transmitance is lower than 0.1% so that it is convenient to use.
The installation method of the spectroscopic light source system of the uniform surface-emitting type gas absorption cell of the present invention the following steps are included:
Step 1, two diffusion coating hemisphere are respectively embedded into corresponding shell hemisphere；By the glass chamber after cleaning, drying
It is stuck in two diffusion coatings, glass chamber, air inlet, gas outlet is made to stretch out diffusion coating and shell, it will be outside two by screw
Shell is fixed tight；
Step 2, for lamp on the lamp radiator, lamp radiator is fixed on shell, and lamp is towards in glass chamber；
Water cooling tube is coiled in outer side of shell by step 3, and the two is close to；
Step 4, air intake valve are installed on the air inlet position on glass chamber, and outlet valve is installed on glass chamber
Gas outlet position, pressure gauge is fixed on air inlet or gas outlet, in the inner part positioned at air intake valve or outlet valve.
The air inlet 11, gas outlet 12 position can be adjusted as needed, the number of the lamp 3 is at least
One, the type of lamp 3, number, power and bit, which are set, to be adjusted as needed, and lamp radiator 4 can according to need using wind
Cold, water cooling, cooling fin or other forms, in this way raising service efficiency.
Working principle of the present invention is as follows: the cold water of specific temperature recycles in water cooling tube, if lamp radiator be water cooling or
It is air-cooled, then enable lamp radiator start to work；Air intake valve and outlet valve are opened, target gas is filled with by glass chamber air inlet
Body closes outlet valve, and observation pressure gauge closes air intake valve until after displaying target pressure；Lamp is opened, into hemispherical space
Emit light, light enters glass chamber, and diameter by integrating sphere diffusion coating carries out multiple diffusing reflection after absorbing, it is superimposed after by accumulating
The output of bulb separation light-emitting window, forms the uniformly light-emitting area source with object gas absorption spectrum；Glass chamber passes through glass material
Selection and the measures such as plated film, be higher than 90% in the transmitance of institute's inflatable body absorption bands and spectrum be flat, while in thermal infrared
Wave band transmitance is lower than 0.1%, can reduce the influence that lamp generates heat to gas temperature.
Particular embodiments described above, the technical issues of to solution of the invention, technical scheme and beneficial effects carry out
It is further described, it should be understood that the above is only a specific embodiment of the present invention, is not limited to
The present invention, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in this
Within the protection scope of invention.
Claims (1)
1. a kind of spectroscopic light source system of uniform surface-emitting type gas absorption cell, which is characterized in that it includes shell, diffusion painting
Layer, lamp, lamp radiator, water cooling tube, light-emitting window, glass chamber, air intake valve, outlet valve, pressure gauge, air inlet, gas outlet,
Diffusion coating is located at inner surface of outer cover, is all connected with light-emitting window on two shells, two diffusion coatings, diffuses coating and glass cavity
Body is connected, and on the shell, on the shell, lamp is connected with lamp radiator, diffusion for multiple lamp radiator installations for multiple water cooling tube installations
Coating, glass chamber are all connected with lamp, and air inlet, gas outlet are all connected with glass chamber, and air inlet is located at the top of gas outlet,
Air intake valve is connected by glass chamber with air inlet, and outlet valve is connected by glass chamber with gas outlet, pressure gauge installation
On glass chamber, pressure gauge is located at the lower section of shell；The shell is equipped with multiple circular holes；The air inlet, gas outlet
Shape is all thin tube-like；The shape of the glass chamber is spherical；The glass chamber is equipped with multiple grooves；The diffusion applies
Gap is equipped between layer and glass chamber；The shell, diffusion coating, lamp, lamp radiator and water cooling tube form an integrating sphere；
The glass chamber, air intake valve, outlet valve and pressure gauge form a gas cell；The glass chamber is inhaled in institute's inflatable body
The transmitance for receiving wave band is higher than 90% and spectrum is flat, while being lower than 0.1% in Thermal infrared bands transmitance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710354258.5A CN107314814B (en) | 2017-05-18 | 2017-05-18 | The spectroscopic light source system of uniform surface-emitting type gas absorption cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710354258.5A CN107314814B (en) | 2017-05-18 | 2017-05-18 | The spectroscopic light source system of uniform surface-emitting type gas absorption cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107314814A CN107314814A (en) | 2017-11-03 |
| CN107314814B true CN107314814B (en) | 2019-01-18 |
Family
ID=60182098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710354258.5A Active CN107314814B (en) | 2017-05-18 | 2017-05-18 | The spectroscopic light source system of uniform surface-emitting type gas absorption cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107314814B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114812800A (en) * | 2019-10-14 | 2022-07-29 | 中国计量科学研究院 | Light source system for radiometer calibration |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2501045Y (en) * | 2001-10-12 | 2002-07-17 | 上海棱光技术有限公司 | Near infrared ray concentration receiver |
| GB0208037D0 (en) * | 2002-04-08 | 2002-05-22 | Bae Systems Plc | Method and apparatus for gas detection |
| CN104215956B (en) * | 2014-08-25 | 2016-11-02 | 中国科学院长春光学精密机械与物理研究所 | A kind of system that high brightness integrating sphere scaling light source is provided |
| CN105158184A (en) * | 2015-09-11 | 2015-12-16 | 深圳世绘林科技有限公司 | Gas online analysis device based on optical integrating sphere |
-
2017
- 2017-05-18 CN CN201710354258.5A patent/CN107314814B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107314814A (en) | 2017-11-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109029725B (en) | Deep ultraviolet, visible and near infrared radiation calibration source device | |
| TWI497039B (en) | Optical measurement apparatus including hemispherical optical integrator | |
| CN105424631B (en) | A kind of hypersensitivity nitrogen oxides measuring system based on UV, visible light wave band absorption spectrum | |
| CN201322255Y (en) | Liquid crystal display device and backlight module | |
| CN104359850B (en) | A kind of infrared gas sensor based on three spheroid absorption chamber structures | |
| CN106153573A (en) | A kind of High Temperature High Pressure optics cavity demarcated for absorptance and using method thereof | |
| CN107314814B (en) | The spectroscopic light source system of uniform surface-emitting type gas absorption cell | |
| CN103344621B (en) | A kind of fluorescence quantum efficiency measurement mechanism and measuring method thereof | |
| CN206832668U (en) | Gasmetry pond and the gas analyzer provided with gasmetry pond | |
| CN105259115A (en) | Portable solar absorptance testing instrument | |
| CN105953927A (en) | Near-infrared detector uniformity test system | |
| CN110823364A (en) | High-intensity illuminometer calibration device and calibration method | |
| KR20040071211A (en) | Optical filters for manipulating spectral power distribution in accelerated weathering devices | |
| CN219957339U (en) | Split type plant spectrum measuring device | |
| CN106442354B (en) | Gas detection device | |
| CN107421890A (en) | Gasmetry pond and the gas analyzer provided with gasmetry pond | |
| CN104776980A (en) | Vacuum ultraviolet light source testing system based on vacuum chamber | |
| CN208537398U (en) | A kind of diffusing reflection collection system based on multiple light courcess | |
| CN202502046U (en) | Light spectrum transmitting terminal for spectroscopy gas analyzer | |
| CN204945106U (en) | Fluid sample analysis instrument | |
| CN106768308A (en) | Ultra-thin light inlet integrating sphere type cosine adjuster | |
| CN208937289U (en) | A kind of precision target simulator suitable for wide temperature wide spectrum working range | |
| CN108195774A (en) | A kind of light source for spectrum analysis emits and signal collection system | |
| CN104266974B (en) | A kind of pressure airflow open air chamber | |
| CN202546469U (en) | Optical illumination device for hyperspectral imaging and optical illumination system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |