CN208537393U - Multiple reflections gas absorption cell suitable for point light source - Google Patents
Multiple reflections gas absorption cell suitable for point light source Download PDFInfo
- Publication number
- CN208537393U CN208537393U CN201821008909.1U CN201821008909U CN208537393U CN 208537393 U CN208537393 U CN 208537393U CN 201821008909 U CN201821008909 U CN 201821008909U CN 208537393 U CN208537393 U CN 208537393U
- Authority
- CN
- China
- Prior art keywords
- reflecting mirror
- multiple reflections
- light
- absorption cell
- mirror
- 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
- Investigating Or Analysing Materials By Optical Means (AREA)
- Optical Measuring Cells (AREA)
Abstract
The utility model relates to optical gas analyzer technical fields, more particularly, to a kind of multiple reflections gas absorption cell suitable for point light source.The multiple reflections gas absorption cell includes: the first reflecting mirror, the second reflecting mirror and lens barrel；First reflecting mirror and the second reflecting mirror relative spacing it is fixed on the both ends of lens barrel；First reflecting mirror and the second reflecting mirror close to it is mutual be on one side reflecting surface, and the first reflecting mirror and the reflecting surface of the second reflecting mirror are the identical spherical concave surface of radius of curvature；First reflecting mirror is provided centrally with light well；Second reflecting mirror is provided centrally with light hole.User can the distance of processing sets up the first reflecting mirror and the second reflecting mirror as needed incident light multiple reflections are realized into more long light path.Double mirror geometries shrink gas cell internal diameter simultaneously, increases relative aperture, has the advantages that structure is simple, adjustment is simple, stability is good, relative aperture is big, optical length, volume is small, is easy to criticize production.
Description
Technical field
The utility model relates to optical gas analyzer technical fields, more particularly, to a kind of suitable for the multiple of point light source
Reflected gas absorption cell.
Background technique
Gas absorption cell is the core sensing element of optical absorption method gas analyzer.Using point light source,
The optical path length and relative aperture of gas absorption cell are an important technical indicators.
In order to detect the gas of lower concentration, longer optical path length is generally required, and is needed in more long light path
There is biggish relative aperture to guarantee enough light energies.Reduce gas again under conditions of meeting long light path and object lens of large relative aperture
The mechanical dimension of absorption cell and volume often select the scheme of reflecting mirror multiple reflections.
Comparing the classical multiple reflections formula gas absorption cell suitable for point light source is White's type gas absorption cell, but White
Type gas absorption cell needs three sheets of reflecting mirrors, and structure is complicated, and resetting difficulty is big, and stability is poor, and its relative aperture receives
Wherein more small-bore aperture of a mirror limitation, bigger relative aperture just need bigger gas absorption cell volume.
Utility model content
The purpose of this utility model is to provide a kind of multiple reflections gas absorption cells suitable for point light source, existing to solve
Have relative aperture present in technology it is big when gas absorption cell volume it is big, the technical issues of structure is complicated.
A kind of multiple reflections gas absorption cell suitable for point light source provided by the utility model, should be suitable for point light source
Multiple reflections gas absorption cell includes: the first reflecting mirror, the second reflecting mirror and lens barrel；
First reflecting mirror is fixed on the both ends of the lens barrel with the second reflecting mirror relative spacing；Described first
Reflecting mirror and second reflecting mirror close to it is mutual be on one side reflecting surface, and first reflecting mirror and described second anti-
The reflecting surface for penetrating mirror is the identical spherical concave surface of radius of curvature；
First reflecting mirror is provided centrally with light well；Second reflecting mirror is provided centrally with light hole；Institute
The upper end for stating lens barrel is provided with air inlet, and lower end is provided with gas outlet.
Further, first reflecting mirror and second reflecting mirror are detachably connected with the lens barrel.
Further, first reflecting mirror is fixed on the lens barrel by the first mounting base；Second reflecting mirror
It is fixed on the lens barrel by the second mounting base.
Further, first reflecting mirror is located at first mounting base close to one end of second mounting base；Institute
It states the second reflecting mirror and is located at second mounting base close to one end of first mounting base；
In first mounting base and second mounting base at setting corresponding with the light well and the light hole
It is respectively arranged with light inlet and light-emitting window.
Further, entering light filter is set in the light inlet；Light filter is provided with out in the light-emitting window.
Further, suction nozzle is provided at the air inlet；Outlet nozzle is provided at the gas outlet.
The utility model provides a kind of multiple reflections gas absorption cell suitable for point light source, which absorbs
Pond includes: the first reflecting mirror, the second reflecting mirror and lens barrel, and first reflecting mirror is with the second reflecting mirror relative spacing
It is fixed on the both ends of the lens barrel, the reflecting surface of the first reflecting mirror and the second reflecting mirror is the spherical concave and convex mirrors of same curvature.It is logical
Curvature and the relative distance of the first reflecting mirror of adjustment and the second reflecting mirror are crossed to adjust time that light beam is assembled between two reflecting mirrors
Number, to change light path size.Light injects gas absorption cell by light well, through two reflecting surface multiple reflections post-concentrations to out
Unthreaded hole projects.
Multiple reflections gas absorption cell provided by the utility model suitable for point light source, user can process as needed
The distance of first reflecting mirror and the second reflecting mirror is set, by incident light multiple reflections, realizes more long light path.Double mirror simultaneously
Geometries shrink gas cell internal diameter, increases relative aperture, has that structure is simple, adjustment is simple, stability is good, relative aperture
Greatly, optical length, volume are small, are easy to criticize the advantages of producing, and are suitable for the optical gas analyzer using point radiant and are suitable for evil
Under bad environmental condition.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural representation of the multiple reflections gas absorption cell provided by the embodiment of the utility model suitable for point light source
Figure；
Fig. 2 is the structure for the multiple reflections gas absorption cell suitable for point light source that another embodiment of the utility model provides
Schematic diagram；
Fig. 3 is the structure principle chart of the first reflecting mirror and the second reflecting mirror provided by the embodiment of the utility model；
Fig. 4 is the structure principle chart of the first reflecting mirror and the second reflecting mirror that another embodiment of the utility model provides.
Appended drawing reference:
The first mounting base of 1-；The first threaded ring of 2-；3- entering light filter；
The first reflecting mirror of 4-；5- suction nozzle；6- lens barrel；
The first temperature sensor of 7-；8- second temperature sensor；9- sensor installation seat；
The second mounting base of 10-；The second threaded ring of 11-；The second reflecting mirror of 12-；
13- outlet nozzle；14- air inlet；15- light well；
16- light hole；The gas outlet 17-.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Fig. 1 is the structural representation of the multiple reflections gas absorption cell provided by the embodiment of the utility model suitable for point light source
Figure；Fig. 2 is the structural representation for the multiple reflections gas absorption cell suitable for point light source that another embodiment of the utility model provides
Figure；As depicted in figs. 1 and 2, the utility model embodiment provides a kind of multiple reflections gas absorption cell suitable for point light source, should
Multiple reflections gas absorption cell suitable for point light source includes: the first reflecting mirror 4, the second reflecting mirror 12 and lens barrel 6；First is anti-
It is fixed on the both ends of lens barrel 6 with penetrating 12 relative spacing of mirror 4 and the second reflecting mirror；First reflecting mirror 4 and the second reflecting mirror 12 are close
Mutual be reflecting surface on one side, and the first reflecting mirror 4 is in for radius of curvature is identical with the reflecting surface of the second reflecting mirror 12
Spherical concave surface；First reflecting mirror 4 is provided centrally with light well 15；Second reflecting mirror 12 is provided centrally with light hole 16；Mirror
The upper end of cylinder 6 is provided with air inlet 14, and lower end is provided with gas outlet 17.
The utility model embodiment provides a kind of multiple reflections gas absorption cell suitable for point light source, the multiple reflections gas
Body absorption cell includes: the first reflecting mirror 4, the second reflecting mirror 12 and lens barrel 6, and the first reflecting mirror 4 and the second reflecting mirror 12 are opposite
Compartment of terrain is fixed on the both ends of lens barrel 6, and the reflecting surface of the first reflecting mirror 4 and the second reflecting mirror 12 is the spherical surface concave surface of same curvature
Mirror.Light beam is adjusted between two reflecting mirrors by adjusting the curvature and relative distance of the first reflecting mirror 4 and the second reflecting mirror 12
The number of convergence, to change light path size.Light injects gas absorption cell by light well 15, through two reflecting surface multiple reflections
Post-concentration is projected to light hole 16.
Wherein, light well 15 and light hole 16 are circular hole.
Multiple reflections gas absorption cell provided by the embodiment of the utility model suitable for point light source, user can be according to need
Incident light multiple reflections are realized more long light path by the distance for wanting processing sets up the first reflecting mirror 4 and the second reflecting mirror 12.Together
When double mirror geometries shrink gas cell internal diameter, increase relative aperture, have structure is simple, adjustment is simple, stability is good,
The big optical length of relative aperture, volume is small, is easy to criticize the advantages of producing, and is suitable for the optical gas analyzer using point radiant and fits
Under the conditions of rugged environment.
On the basis of the above embodiments, further, the first reflecting mirror 4 and the second reflecting mirror 12 are removable with lens barrel 6
It connects with unloading.
In the present embodiment, the first reflecting mirror 4 and the second reflecting mirror 12 are detachably connected with lens barrel 6, convenient for users to installation
Setting.
Fig. 3 is the structure principle chart of the first reflecting mirror and the second reflecting mirror provided by the embodiment of the utility model；Such as Fig. 3 institute
Show, as one embodiment, the radius of curvature SR=119.8mm of the reflecting surface of the first reflecting mirror 4 and the second reflecting mirror 12, mouth
Diameter A=37mm, distance L=178mm, relative aperture D=0.1, light path P=534mm.
Fig. 4 is the structure principle chart of the first reflecting mirror and the second reflecting mirror that another embodiment of the utility model provides；Such as
Shown in Fig. 4, the present embodiment optimizes on the basis of example 1, by the first reflecting mirror 4, the song of the second reflecting mirror 12
Rate radius SR is adjusted to SR=137mm, and reflecting mirror distance L, bore A, relative aperture D is constant, incident beam can realize 5 times it is anti-
It penetrates, light path P=890mm, to realize the increase of light path by adjusting mirror curvature radius.
On the basis of the above embodiments, further, the first reflecting mirror 4 is fixed on lens barrel 6 by the first mounting base 1
On；Second reflecting mirror 12 is fixed on lens barrel 6 by the second mounting base 10.
In the present embodiment, the first reflecting mirror 4 and the second reflecting mirror 12 pass through the first mounting base 1 and the second mounting base 10 respectively
It is fixed on lens barrel 6, installation is facilitated to fix.
On the basis of the above embodiments, further, the first reflecting mirror 4 is located at the first mounting base 1 close to the second installation
One end of seat 10；Second reflecting mirror 12 is located at the second mounting base 10 close to one end of the first mounting base 1；First mounting base 1 and
Light inlet and light-emitting window are respectively arranged at setting corresponding with light well 15 and light hole 16 in two mounting bases 10.
In the present embodiment, the first reflecting mirror 4 and the second reflecting mirror 12 are arranged in the first mounting base 1 and the second mounting base 10
Inside, can play the role of protecting the first reflecting mirror 4 and the second reflecting mirror 12.Point light source from light inlet by light well 15 into
Enter in lens barrel 6, after multiple reflections, projects from light hole 16 and through light-emitting window.
On the basis of the above embodiments, further, entering light filter 3 is set in light inlet；It is provided with out in light-emitting window
Light filter.
In the present embodiment, point light source enters light inlet and enters lens barrel 6 using light well 15 after the filtering of entering light filter 3
It is interior, it after multiple reflections, is projected from light hole 16, and finally projected after being gone out the filtering of light filter, improves the precision of detection.
Further, entering light filter 3 is fixed in the first mounting base 1 by the first threaded ring 2, and light filter passes through the out
Two threaded rings 11 are fixed in the second mounting base 10.
On the basis of the above embodiments, further, heater strip is enclosed on the outer wall of lens barrel 6.
It in the present embodiment, is powered, lens barrel 6 can be heated to heater strip, to heat inside lens barrel 6, improved
Detection accuracy.
On the basis of the above embodiments, further, it is provided with temperature sensor on lens barrel 6, for detecting in lens barrel 6
Temperature information.
In the present embodiment, temperature sensor is provided on lens barrel 6, temperature sensor detects the temperature information in lens barrel 6, and
The temperature information is sent to control system, control system is according to the temperature information control heater strip heating received or stops
Heating.
Further, temperature sensor is fixed on lens barrel 6 by sensor installation seat 9.
Further, temperature sensor is set as two, respectively the first temperature sensor 7 and second temperature sensor 8.
On the basis of the above embodiments, further, suction nozzle 5 is provided at air inlet；It is provided with out at gas outlet
Gas nozzle 13.
In the present embodiment, the setting of suction nozzle 5 and outlet nozzle 13 facilitate air inlet and feeder and gas outlet with
The connection of external device (ED).
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (6)
1. a kind of multiple reflections gas absorption cell suitable for point light source characterized by comprising the first reflecting mirror, second are instead
Penetrate mirror and lens barrel；
First reflecting mirror is fixed on the both ends of the lens barrel with the second reflecting mirror relative spacing；First reflection
Mirror and second reflecting mirror close to it is mutual be on one side reflecting surface, and first reflecting mirror and second reflecting mirror
Reflecting surface be the identical spherical concave surface of radius of curvature；
First reflecting mirror is provided centrally with light well；Second reflecting mirror is provided centrally with light hole；The mirror
The upper end of cylinder is provided with air inlet, and lower end is provided with gas outlet.
2. the multiple reflections gas absorption cell according to claim 1 suitable for point light source, which is characterized in that described first
Reflecting mirror and second reflecting mirror are detachably connected with the lens barrel.
3. the multiple reflections gas absorption cell according to claim 1 suitable for point light source, which is characterized in that described first
Reflecting mirror is fixed on the lens barrel by the first mounting base；Second reflecting mirror is fixed on the mirror by the second mounting base
On cylinder.
4. the multiple reflections gas absorption cell according to claim 3 suitable for point light source, which is characterized in that described first
Reflecting mirror is located at first mounting base close to one end of second mounting base；Second reflecting mirror is located at second peace
Dress seats against one end of nearly first mounting base；
Distinguish at setting corresponding with the light well and the light hole in first mounting base and second mounting base
It is provided with light inlet and light-emitting window.
5. the multiple reflections gas absorption cell according to claim 4 suitable for point light source, which is characterized in that the entering light
Entering light filter is set in mouthful；Light filter is provided with out in the light-emitting window.
6. the multiple reflections gas absorption cell according to claim 1 suitable for point light source, which is characterized in that the air inlet
Suction nozzle is provided at mouthful；Outlet nozzle is provided at the gas outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821008909.1U CN208537393U (en) | 2018-06-27 | 2018-06-27 | Multiple reflections gas absorption cell suitable for point light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821008909.1U CN208537393U (en) | 2018-06-27 | 2018-06-27 | Multiple reflections gas absorption cell suitable for point light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208537393U true CN208537393U (en) | 2019-02-22 |
Family
ID=65378722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821008909.1U Active CN208537393U (en) | 2018-06-27 | 2018-06-27 | Multiple reflections gas absorption cell suitable for point light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208537393U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030372A (en) * | 2018-06-27 | 2018-12-18 | 青岛蓝翼光学有限公司 | Multiple reflections gas absorption cell suitable for point light source |
-
2018
- 2018-06-27 CN CN201821008909.1U patent/CN208537393U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030372A (en) * | 2018-06-27 | 2018-12-18 | 青岛蓝翼光学有限公司 | Multiple reflections gas absorption cell suitable for point light source |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103822893B (en) | A kind of NDIR gas sensor | |
| CN105705932B (en) | Improvement related with particle characterization | |
| CN208537393U (en) | Multiple reflections gas absorption cell suitable for point light source | |
| WO2022088586A1 (en) | System and method for detecting bubbles in liquid path of fully automatic chemiluminescence immunoassay analyzer | |
| CN105067546B (en) | The multispectral coupling optical-mechanical system of high temperature | |
| CN105842167A (en) | Optical path adjustable gas-absorbing pool | |
| CN205719925U (en) | A kind of light path adjustable gas absorption cell | |
| CN105424604A (en) | Sensor based on sleeved waveguide tube | |
| CN106483071A (en) | A kind of gas detector and its absorption cell | |
| CN109030372A (en) | Multiple reflections gas absorption cell suitable for point light source | |
| CN202433295U (en) | Trace gas absorbing pool | |
| CN110531013A (en) | A kind of detection cell being axially totally reflected using capillary wall | |
| CN208568576U (en) | A kind of multicomponent gas absorption cell | |
| CN105466855A (en) | Sample detecting device based on Herroitt multi-reflect pool | |
| CN111458299A (en) | Gas absorption cell, gas concentration detection device and method | |
| CN202018419U (en) | Gas detection platform adopting Herroitt multiple reflection sample room | |
| CN212364053U (en) | Gas absorption cell and gas concentration detection device | |
| CN205333954U (en) | A cassegrain mirror head for fixing a point measure flame free radical fluorescence intensity | |
| CN210953786U (en) | High-stability gas measurement chamber and measuring instrument thereof | |
| CN211148413U (en) | Optical channel capable of increasing optical path length for gas analyzer | |
| CN203929616U (en) | A kind of flow cell with optical fiber interface | |
| CN214749726U (en) | Integrated Herriott optical reflecting pool | |
| CN214794412U (en) | High-reliability methane sensing gas chamber | |
| CN209764664U (en) | High-precision particulate matter mass concentration detection device | |
| WO2023168951A1 (en) | Reflective optical system for long optical path gas absorption cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 266112 No.68, Guangxian Road, high tech Zone, Qingdao, Shandong Province Patentee after: Qingdao Liangyi Intelligent Technology Co.,Ltd. Address before: 266000 No. 21 Songyuan Road, Qingdao High-tech Zone, Shandong Province Patentee before: QINGDAO LANYI OPTICAL Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191022 Address after: 266400 no.379 Hedong Road, high tech Zone, Qingdao, Shandong Province Patentee after: Qingdao Laoying Haina Photoelectric Environmental Protection Group Co.,Ltd. Address before: 266112 No.68, Guangxian Road, high tech Zone, Qingdao, Shandong Province Patentee before: Qingdao Liangyi Intelligent Technology Co.,Ltd. |