CN208013064U - A kind of absorption pool structure of ultraviolet difference gas analysis using y-type optical fiber - Google Patents
A kind of absorption pool structure of ultraviolet difference gas analysis using y-type optical fiber Download PDFInfo
- Publication number
- CN208013064U CN208013064U CN201820142780.7U CN201820142780U CN208013064U CN 208013064 U CN208013064 U CN 208013064U CN 201820142780 U CN201820142780 U CN 201820142780U CN 208013064 U CN208013064 U CN 208013064U
- Authority
- CN
- China
- Prior art keywords
- light
- optical fiber
- pond body
- type optical
- gas analysis
- 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
Landscapes
- Optical Measuring Cells (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model is related to a kind of absorption pool structures of the ultraviolet difference gas analysis using y-type optical fiber, the incident section of pond body may be contained within pond body band there are one the same end of monochromatic light mouth with exit portion and incident light made to pass through monochromatic light mouth with the reception light, and end has an optical branching device and incident light is made to merge into the same light path in end with light is received.The utility model only needs out an optical port that transmitting-receiving light can be realized in pond body, and the volume of device entirety is made to become smaller, and more simplifies, while also can ensure that measurement is more accurate；It is influenced caused by gas absorption cell can be avoided to be readily incorporated malformation, temperature etc. under use condition at the scene, using Y optical fiber spectrums, is advantageously implemented reduction drift, improves stability, improve interchangeability；It may make that system is simple to light, do not influence the performance of optical system.
Description
Technical field
The utility model is related to fluid flow detection technique field more particularly to a kind of ultraviolet differences using y-type optical fiber
The absorption pool structure of gas analysis.
Background technology
Absorption cell is the special container for multiplying the sample for carrying Optical characteristics to be carried out in laboratory, is mostly rectangular
Body is mostly made with the quartz material low to absorption of UV, some light splitting liquid baths for being used for visible light analysis are mostly
Cuboid.But since the equipment instrument size of gas analyzer should not further increase, especially length direction, Standard Machine
The size of case is relatively fixed, thus absorption cell size is restricted.
More accurate detection is carried out to polluted gas to realize, for environmentally friendly supervisory and management departments at different levels and relevant enterprise
More accurate real time data is provided, it is small that there is an urgent need to measurement ranges, measures more accurate, the environment measuring instrument more modernized.
At present both at home and abroad in gas analysis detection, ultraviolet difference absorption process principle is widely used, ultraviolet
Be with ordinary optic fibre in the mode that light introduces it is to transmit medium, i.e. optical fiber introduces incident light, and an optical fiber is received by gas
Reflected light after body absorption, such hair one, which is received, to be needed to provide two optical ports altogether.
Those skilled in the art analyze the defect of existing known technology, and the structure of this ordinary optic fibre has following
Several disadvantages：
1. optical port is at least two, entire absorption cell volume is made to increase, it is not easy enough；
It is more complicated 2. two fibre systems are to light, and under poor site environment be easy shaken, the shadow of temperature
It rings, causes malformation；
3. being easy to influence the performance of optical system when optical fiber exchanges.
In conclusion the present invention is exactly on the basis of existing known technology, in conjunction with the verification of practical application, to same skill
Product structure in art field proposes that the technical solution further researched and developed with designed, these technical solutions proposed are entirely capable of solving
Problem certainly of the existing technology, while being also beneficial to the solution of numerous technical problems of same technical field and developing skill
The expansibility of scheme.
Utility model content
For disadvantages described above, the utility model provides a kind of absorption cell of the ultraviolet difference gas analysis using y-type optical fiber
Structure is not increasing equipment instrument, is only needing out an optical port that transmitting-receiving light can be realized in structure, while solving existing
Many deficiencies of technology.
To achieve the above object, the utility model uses following technical scheme：
A kind of absorption pool structure of ultraviolet difference gas analysis using y-type optical fiber, it is internal that there is closed measuring chamber,
The incident section of incident light is in the end cap position of body side and makes the emergent light of the pond body with the exit portion for receiving light
Beam is transferred to spectrometer analysis, and incident section and the exit portion of the pond body may be contained within the pond body band there are one the same of monochromatic light mouth
One end and the incident light and the receptions light is made to pass through the monochromatic light mouth, the end is with an optical branching device and makes
The incident light merges into the same light path with the reception light in the end.
Further include following any one for the additional structure of above technical scheme：
The optical branching device with the pond body is connect using y-type optical fiber and by fibre-optical splice；
Correspondingly, the fibre-optical splice is fixedly connected by expansion screw with the end cap of pond body.
Further include following any one for the additional structure of above technical scheme：
The optical branching device is made of multiple input end and the optical fiber tandem device of multiple output ends；
Correspondingly, the optical branching device at least two light path convergences will get up to form a light path or be divided into a light path
Several pieces.
For above technical scheme and the technical solution with any one additional structure, further include：
The pond body surface only has an optical port；
The measuring chamber both ends are respectively arranged to the pneumatic quick inlet suction port of gas input and discharge, pneumatically quickly go out
Gas connector；The pneumatic quickly inlet suction port inflow waits for test sample gas, and riddles inside closed absorption cell, then from pneumatic fast
Fast air outlet adapter export, to form a gas return path.
Correspondingly, the pneumatic quickly inlet suction port is set to sealing pond body the same side with pneumatic quickly air outlet adapter, makes
Gas is into outgoing direction perpendicular to the direction of light discrepancy absorption cell.
In addition, forming orientation distance on the focal plane of the spectrum of the spherical reflector and plus lens composition.
The advantageous effect of the absorption pool structure of ultraviolet difference gas analysis described in the utility model using y-type optical fiber
For：
(1) do not increasing equipment instrument, only needing out an optical port that transmitting-receiving light can be realized in pond body, make device
Whole volume becomes smaller, and more simplifies, while also can ensure that measurement is more accurate；
(2) gas absorption cell can be avoided to be readily incorporated shadow caused by malformation, temperature etc. under use condition at the scene
It rings, using Y optical fiber spectrums, is advantageously implemented reduction drift, improves stability, improve interchangeability；
(3) orientation distance is designed on the focal plane for the spectrum being made of spherical reflector and plus lens, may make
System is simple to light；
(4) by opening up the intake interface, the outlet interface that input and be discharged for gas respectively in cover board both sides, make to be measured
Sample gas is flowed into the intake interface implemented, and is riddled inside closed absorption cell, is then led again from the outlet interface implemented
Go out, to form a gas return path；
(5) performance of optical system is not influenced.
Description of the drawings
The utility model is described in further detail below according to attached drawing.
Fig. 1 is absorption cell schematic internal view described in the utility model embodiment；
Fig. 2 is absorption cell outside schematic diagram described in the utility model embodiment.
In figure：
1, y-type optical fiber；2, fibre-optical splice；3, adjusting screw；4, plus lens；5, O-ring seals；6, pneumatic quick air inlet
Connector；7, cover board；8, measuring chamber；9, spherical reflector；10, pneumatic quick air outlet adapter；11, pond body；12, end cap.
Specific implementation mode
Embodiment one
As shown in Figs. 1-2, the suction of the ultraviolet difference gas analysis using y-type optical fiber described in the utility model embodiment one
Receives pond structure, the purpose to be realized of the technical solution implemented are, solve used absorption when test sample qi leel is analysed and detected
Pool structure causes apparatus structure yielding and cannot be satisfied ultraviolet because causing own vol to increase using at least two optical ports
The problems such as difference gasmetry precision, and further, even if increasing absorption cell own vol can not also make at, emergent light
An optical port in the same side, therefore, the technical solution that the utility model is implemented include pond body 11 and its corresponding cover board 7.
The pond body structure of above-mentioned setting is further analyzed：
There is measuring chamber 8,8 both ends of measuring chamber to be respectively arranged to gas input and discharge for 11 inside of pond body implemented
Pneumatic quick inlet suction port 6, pneumatic quickly air outlet adapter 10, to make to wait for test sample gas in the pneumatic quick air inlet connecting implemented
First 6 flow into, and riddle inside closed absorption cell, then again from pneumatic quick air outlet adapter 10 export implemented, to shape
At a gas return path, it can be seen that, the utility model is by setting pneumatic quickly inlet suction port 6 and pneumatic quickly air outlet adapter 10
The same sealing pond body 11 is placed in simultaneously because the interconnecting piece concentrated setting of optical fiber and pond body 11 is in the 11 same end face of pond body, because
And on position relationship, the inlet, outlet direction of the inlet, outlet connector implemented goes out with optical fiber, incident direction is vertical, to
Make to wait for that the direction of test sample gas disengaging absorption cell comes in and goes out the direction of absorption cell perpendicular to light, is conducive to promote light to penetrate and waits for test sample
The accuracy of headroom can tentatively improve the precision of detection.
Correspondingly, pneumatic quick inlet suction port 6, the pneumatic quickly air outlet adapter 10 implemented compress one each by bottom
Cover board 7 is fixedly connected with pond body 11, is increased for improving on the stitching surface between 7 bottom of each cover board implemented and pond body 11
The O-ring seals 5 of sealing performance.
Further, the measuring chamber 8 implemented adds vertically disposed spherical reflector 9 in the inner cavity at tail-hood position,
Meanwhile plus lens 4, correspondingly, the plus lens 4 implemented is arranged at 12 position of end cap for going out incident direction in the measuring chamber 8
It is fixed in the end cap 12 go out with incident window and is sealed using sealing ring, to make end cap 12 in the direction of the width
One side of pond body 11 is sealed, sealing means can be used in the internal face appropriate location that end cap 12 is in contact with pond body 11
Place adds rubber seal.
For the pond body 11 implemented above, the design of optical port is advanced optimized：
A y-type optical fiber 1, the Y types implemented is fixedly mounted in 12 outside of end cap for going out incident direction in the pond body 11 implemented
Optical fiber 1 is fixedly connected by fibre-optical splice 2 with end cap 12, by adjusting screw 3 between the fibre-optical splice 2 implemented and end cap 12
It fixes and is conducive to carry out system to light；
Correspondingly, y-type optical fiber 1 its principle implemented is that multilink convergence is got up or one by optical branching device
Link flow is divided into several parts, that is, closes Shu Yingyong and light splitting is applied, and this optical branching device is also important passive in optical fiber link
One of device is the optical fiber tandem device with multiple input end and multiple output ends；
Thus, since the y-type optical fiber 1 implemented needs an optical fiber can be by the transmitting light of 11 side of pond body and reception
This two-way of light is merged into be received and dispatched all the way, thus, make only to need an optical port that transmitting-receiving light can be realized in 11 structure of pond body, from
And whole volume is become smaller, component is greatly simplified；Simultaneously as common gas absorption cell optical port more than one
It is a, it is easy, by influence caused by malformation, temperature etc., if using y-type optical fiber 1 instead, to drop in this way under use condition at the scene
Low drifting improves stability, improves interchangeability.
The absorption pool structure of the ultraviolet difference gas analysis using y-type optical fiber described in the utility model embodiment one, also
It is designed with orientation distance, by being implemented spherical reflector 9 in implemented 8 inside both sides of measuring chamber and convergence thoroughly
The distance of mirror 4 is constant, and the position relationship between end cap 12 and pond body 11 remains unchanged, thus, the going out of the y-type optical fiber 1 implemented,
Incidence end is then adjusted loaded on the position inside fibre-optical splice 2, and the orientation distance setting implemented is by spherical reflector 9 and remittance
On the focal plane for the spectrum that poly- lens 4 form (i.e. the distance between the transmitting-receiving port of y-type optical fiber 1 and 9 minute surface of spherical reflector),
So that it is very easy to light, when the incident beam entered from y-type optical fiber 1 is irradiated to via unique optical port by plus lens 4
It is returned again to after spherical reflector 9, the light beam finally returned that is received by y-type optical fiber 1 via the same optical port and is transferred to spectrum
Instrument.
Embodiment two
As shown in Figs. 1-2, the suction of the ultraviolet difference gas analysis using y-type optical fiber described in the utility model embodiment two
Receives pond structure, on the basis of embodiment one, the present embodiment two is equivalent to a deformation of embodiment one, the technical issues of solution
Identical as embodiment one, used technical solution is inside the same pond body 11 according to the spherical reflector arranged 9
It sets, the difference of quantity, the light path incidence and outgoing of different directions is carried out using the same optical port, to realize different gas inspections
Survey purpose.Alternatively, the technical solution that can be combined or disconnect between each other using two pond bodies 11, two 11 outer surfaces of pond body
The function of a tractor serves several purposes is realized to the machine of merging into a single whole, with the component being fixed to each other for the two if each pond body 11
Have one corresponding technological means of embodiment, the combination unit is made to have two kinds of gasmetry work.
In addition, other technological means that the utility model embodiment two is implemented, can refer to embodiment one or on its basis
On be improved, details are not described herein again.
In the description of this specification, if there is term " embodiment one ", " the present embodiment ", " specific implementation " equal descriptions meaning
Refer to particular features, structures, materials, or characteristics described in conjunction with this embodiment or example and is contained in the utility model or invention extremely
In few one embodiment or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical reality
Apply example or example；Moreover, described particular features, structures, materials, or characteristics can in any one or more embodiments or
It is combined in a proper manner in example.
In the description of this specification, term " connection ", " installation ", " fixation ", " setting ", " having " etc. do broad sense reason
Solution, for example, " connection " may be a fixed connection or pass through intermediate module on the basis of not influencing parts relationship with technique effect
Indirectly carry out, can also be integrally connected or part connect, such as herewith example situation for those of ordinary skills,
Concrete meaning of the above-mentioned term in the utility model or invention can be understood as the case may be.
The above-mentioned description to embodiment is for the ease of those skilled in the art it will be appreciated that and using this
Case technology, person skilled in the art obviously can make various modifications to these examples easily, and described herein one
As principle be applied in other embodiments without having to go through creative labor.Therefore, this case is not limited to above example, for
The modification of several situations below, all should be in the protection domain of this case：1. based on technical solutions of the utility model and tying
The new technical solution that existing common knowledge is implemented is closed, technique effect is not departing from this caused by the new technical solution
Except utility model technique effect, for example, the technical solution of y-type optical fiber combination spherical reflector is applied to other gas analyses
Detection field；2. using known technology to the equivalence replacement of the Partial Feature of technical solutions of the utility model, generated technology
Effect is identical as the utility model technique effect, for example, to end cap seal assembly, optical fiber model etc. carry out equivalence replacement and not
Generate other technique effects；3. it carries out to expand based on technical solutions of the utility model, the technical solution after expansion
Except substantive content is without departing from technical solutions of the utility model；4. made based on the specification and figures of the utility model
Equivalent transformation is directly or indirectly used in other related technical areas.
Claims (9)
1. a kind of absorption pool structure of ultraviolet difference gas analysis using y-type optical fiber, internal to have closed measuring chamber, enter
The incident section for penetrating light is in the end cap position of body side and makes the outgoing beam of the pond body with the exit portion for receiving light
It is transferred to spectrometer analysis, it is characterised in that：
The incident section of the pond body may be contained within the pond body band there are one the same end of monochromatic light mouth with exit portion and make institute
It states incident light and passes through the monochromatic light mouth with the reception light, the end has an optical branching device and makes the incident light and institute
It states reception light and merges into the same light path in the end.
2. the absorption pool structure of the ultraviolet difference gas analysis according to claim 1 using y-type optical fiber, feature exist
In：The optical branching device with the pond body is connect using y-type optical fiber and by fibre-optical splice.
3. the absorption pool structure of the ultraviolet difference gas analysis according to claim 1 using y-type optical fiber, feature exist
In：The optical branching device is made of multiple input end and the optical fiber tandem device of multiple output ends.
4. the absorption pool structure of the ultraviolet difference gas analysis according to claim 2 using y-type optical fiber, feature exist
In：The fibre-optical splice is fixedly connected by expansion screw with the end cap of pond body.
5. the absorption pool structure of the ultraviolet difference gas analysis according to claim 3 using y-type optical fiber, feature exist
In：The optical branching device at least two light path convergences will get up to form a light path or a light path is divided into several pieces.
6. the absorption pool structure of the ultraviolet difference gas analysis of y-type optical fiber is used according to claim 1-5 any one of them,
It is characterized in that：The pond body surface only has an optical port.
7. the absorption pool structure of the ultraviolet difference gas analysis according to claim 6 using y-type optical fiber, feature exist
In：The measuring chamber both ends are respectively arranged to the pneumatic quick inlet suction port of gas input and discharge, pneumatic quickly outlet connects
Head.
8. the absorption pool structure of the ultraviolet difference gas analysis according to claim 7 using y-type optical fiber, feature exist
In：The pneumatic quickly inlet suction port inflow waits for test sample gas, and riddles inside closed absorption cell, then from pneumatically quickly going out
Gas connector exports, to form a gas return path.
9. the absorption pool structure of the ultraviolet difference gas analysis according to claim 8 using y-type optical fiber, feature exist
In：The pneumatic quickly inlet suction port is set to sealing pond body the same side with pneumatic quickly air outlet adapter, makes gas into outgoing direction
Perpendicular to the direction of light discrepancy absorption cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820142780.7U CN208013064U (en) | 2018-01-27 | 2018-01-27 | A kind of absorption pool structure of ultraviolet difference gas analysis using y-type optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820142780.7U CN208013064U (en) | 2018-01-27 | 2018-01-27 | A kind of absorption pool structure of ultraviolet difference gas analysis using y-type optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208013064U true CN208013064U (en) | 2018-10-26 |
Family
ID=63883464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820142780.7U Active CN208013064U (en) | 2018-01-27 | 2018-01-27 | A kind of absorption pool structure of ultraviolet difference gas analysis using y-type optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208013064U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975676A (en) * | 2019-05-05 | 2019-07-05 | 国网江苏省电力有限公司 | The monitoring device and system of air insulating device |
-
2018
- 2018-01-27 CN CN201820142780.7U patent/CN208013064U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975676A (en) * | 2019-05-05 | 2019-07-05 | 国网江苏省电力有限公司 | The monitoring device and system of air insulating device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2004527744A (en) | Method and apparatus for measuring color characteristics of fluid | |
| CN101587077B (en) | Optical fibre sensor structure | |
| CN108801959A (en) | One kind being based on microflow control technique original position ammonia nitrogen on-line computing model | |
| GB2060928A (en) | Optical sample cell for analysis of particles in liquid suspension | |
| CN104949958A (en) | Novel Raman probe based on optical fiber beam splitter | |
| CN208013064U (en) | A kind of absorption pool structure of ultraviolet difference gas analysis using y-type optical fiber | |
| CN109374552A (en) | A kind of water body absorption coefficient measuring device based on segmentation optical path | |
| CN110031426A (en) | A kind of the escaping of ammonia analyzer and analysis method based on multi beam light source off-axis integrated chamber output spectrum technology | |
| US5039224A (en) | Self-referencing remote optical probe | |
| CN107153049B (en) | A kind of material refractive index measuring device inhibiting stray light | |
| CN105675521B (en) | A kind of method and detection device based on sensitive membrane on-line checking water pH value | |
| CN202794024U (en) | Sample cell used for measuring molecular spectral absorption | |
| CN208013063U (en) | A kind of absorption pool structure for small-range ultraviolet difference gas analysis | |
| CN208537406U (en) | One kind being based on microflow control technique original position ammonia nitrogen on-line computing model | |
| CN106442278A (en) | Measurement device and measurement method for scattered light intensity distribution of single particle beam | |
| US20230010477A1 (en) | Cavity for gas measurements | |
| CN213275345U (en) | Single-gas-path multi-gas monitoring gas absorption pool | |
| CN207816809U (en) | A kind of fluid analysis optical system | |
| CN211014006U (en) | Liquid detection device | |
| CN209606313U (en) | The device of sulfur dioxide and nitrogen dioxide in surrounding air is detected simultaneously | |
| CN114184560A (en) | Spectral measurement device based on gas rapid mixing | |
| CN209461163U (en) | Main steam line leakage monitoring system in a kind of containment | |
| CN106085838A (en) | Cell detecting system and method on sheet based on PDMS chip | |
| CN208795642U (en) | A kind of microflow control technique original position NH 3 device and its flow cell | |
| CN103196845A (en) | Multi-component concentration analyzing device and measuring chamber thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |