CN205748635U - Optical spectroscopic device - Google Patents
Optical spectroscopic device Download PDFInfo
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- CN205748635U CN205748635U CN201620713348.XU CN201620713348U CN205748635U CN 205748635 U CN205748635 U CN 205748635U CN 201620713348 U CN201620713348 U CN 201620713348U CN 205748635 U CN205748635 U CN 205748635U
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- bearing
- grating
- spectroscopic device
- slit
- fixed
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Abstract
The utility model discloses a kind of optical spectroscopic device, optical spectroscopic device includes slit, grating, detector and base；Farther including: the first bearing is L-shaped, and be fixed on described base, described slit and fibre-optical splice are fixed on described first bearing；Second bearing is arranged on from the light path of described slit emergent light, and is fixed on described base by fixing screw；The profile of the horizontal cross-section on the top of described second bearing is in " [" type, described grating and overcoat thereof are stuck in described " in [" type structure；Described " have on the relative both wings of [" type structure to mark closely and prop up described grating, have regulation screw and prop up described grating at the differing heights on the connecting portion of described relative both wings；Three abutments is L-shaped, is arranged on the light splitting optical path of described grating, and is fixed on described base.This utility model has the advantages such as high-resolution, high sensitivity, ultraviolet response be good.
Description
Technical field
This utility model relates to optical detection, particularly relates to optical spectroscopic device.
Background technology
Along with the discharge of the acceleration of China's process of industrialization, harmful gas and flue dust causes serious dirt to surrounding air
Dye, human health, surrounding air gaseous contaminant (SO in air pollution serious threat2、NO2、O3, CO) monitoring the most very urgent.
Traditional flue gas analysis ultraviolet difference absorption spectrum (DOAS) system can detect SO simultaneously2、NO2、O3Spy is had Deng at ultraviolet band
Levy the gas of absorption spectra, for the ultraviolet light from the most respectively different absorption bands, generally use light-dividing device light splitting, but often
The resolution of light-dividing device of rule, sensitivity deficiency, reduce analysis precision.
Utility model content
In order to solve the deficiencies in the prior art, this utility model provides a kind of high-resolution, high sensitivity, purple
The optical spectroscopic device that outer wave band responds.
Utility model purpose of the present utility model is achieved by the following technical programs:
A kind of optical spectroscopic device, described optical spectroscopic device includes slit, grating, detector and base；Described optics
Light-dividing device farther includes:
First bearing, described first bearing is L-shaped, and is fixed on described base, and described slit and fibre-optical splice are solid
It is scheduled on described first bearing；
Second bearing, described second bearing is arranged on from the light path of described slit emergent light, and solid by fixing screw
It is scheduled on described base；The profile of the horizontal cross-section on the top of described second bearing is in " [" type, described grating and overcoat thereof are stuck in
Described " in [" type structure；Described " have on the relative both wings of [" type structure to mark closely and prop up described grating, described relative two
There is at differing heights on the connecting portion of the wing regulation screw and prop up described grating；
Three abutments, described three abutments is L-shaped, is arranged on the light splitting optical path of described grating, and is fixed on described
On base.
According to above-mentioned optical spectroscopic device, it is preferable that the part hollow out facing described both wings of described connecting portion.
According to above-mentioned optical spectroscopic device, alternatively, described fibre-optical splice is fixed on described first bearing by flange
On, slit trim ring props up in described slit fixing lower slit window, and described slit window and described flange are respectively at described bearing
Both sides.
According to above-mentioned optical spectroscopic device, alternatively, the light path of described detector upstream arranges transparent window film.
According to above-mentioned optical spectroscopic device, it is preferable that described detector is parallel to described base plane and arranges.
According to above-mentioned optical spectroscopic device, it is preferable that be suitable on described second bearing that described fixing screw passes is logical
The length in hole is more than the external diameter of described fixing screw.
According to above-mentioned optical spectroscopic device, it is preferable that from the direct of travel of described slit emergent light, described smooth grid voltage
The internal diameter of circle becomes larger.
According to above-mentioned optical spectroscopic device, alternatively, described detector and process circuit thereof are fixed by screws in institute
State on three abutments.
Compared with prior art, this utility model has the advantages that
1. concave grating energy loss is less so that enter detector energy sufficiently strong；
2. compact conformation, light path is simple, and not through superrefraction, light is directly carried out light splitting by grating；
3. add a transparent window film (such as quartz glass) detector is protected, have between detector and protection window
A certain distance, effectively prevents scattered light from entering detector；
4. position and the angular adjustment of grating are convenient, and detector can also be finely adjusted.
Accompanying drawing explanation
Referring to the drawings, disclosure of the present utility model will be easier to understand.Skilled addressee readily understands that
It is: these accompanying drawings are used only for illustrating the technical solution of the utility model, and are not intended to protection of the present utility model
Scope is construed as limiting.In figure:
Fig. 1 is the structure diagram of the optical spectroscopic device of this utility model embodiment；
Fig. 2 is another structure diagram of the optical spectroscopic device of this utility model embodiment.
Detailed description of the invention
Fig. 1-2 and following description describe optional embodiment of the present utility model with teaching those skilled in the art how
Implement and reproduce this utility model.In order to instruct technical solutions of the utility model, simplify or eliminated some conventional aspects.This
Skilled person should be appreciated that be derived from these embodiments modification or replace will be in the range of this utility model.This area
Skilled artisans appreciated that following characteristics can combine to form multiple modification of the present utility model in every way.Thus, originally
Utility model is not limited to following optional embodiment, and is only limited by claim and their equivalent.
Embodiment 1:
Fig. 1,2 structure diagrams of a kind of optical spectroscopic device schematically illustrating this utility model embodiment, such as Fig. 1
Shown in, described optical spectroscopic device includes:
Base 5, described susceptor surface is smooth, and has through hole；
First bearing 1, described first bearing is L-shaped, and is fixed on described by the fixed component such as alignment pin or screw
On base, described slit and fibre-optical splice are fixed on described first bearing；Described fibre-optical splice is fixed on described by flange
On first bearing, slit trim ring props up in described slit fixing lower slit window, and described slit window is respectively at described flange
The both sides of described bearing；From the direct of travel of described slit emergent light, the internal diameter of described grating trim ring becomes larger, described company
Connect the part hollow out facing described both wings in portion；
Second bearing 2, described second bearing is arranged on from the light path of described slit emergent light, and by fixing screw 25
It is fixed on described base；The profile of the horizontal cross-section on the top of described second bearing is in " [" type, described grating 3 and overcoat thereof
31 be stuck in described " in [" type structure；Described " have on the relative both wings of [" type structure and mark closely 24 and prop up described grating, described
There is at differing heights on the connecting portion 21 of relative both wings 22,23 regulation screw 26 and prop up described grating；Described second
The length external diameter more than described fixing screw of the through hole that described fixing screw passes is suitable to so that the second bearing is the end of relative on seat
Seat is mobile, namely have adjusted the distance of grating opposing slit, detector.
Three abutments 4, described three abutments is L-shaped, is arranged on the light splitting optical path of described grating, and is fixed on described
On base, there is the through hole being parallel to base.Arranging transparent window film in the light path of described detector upstream, described detector is parallel
Arranging in described base plane, described detector and process circuit thereof are fixed by screws on described three abutments.By grating
The light separated is received by a detector after passing transparent window film, through hole and is converted to the signal of telecommunication.
The control method of above-mentioned optical spectroscopic device, described control method is:
Regulate described grating opposing detector, the distance of slit by described fixing screw, adjusted by described regulation screw
The angle of inclination of whole described grating respect thereto plane, and use mark closely fixing described grating, by described three abutments
Screw regulates the described detector position relative to three abutments so that be projected directly at described grating from the light of described slit outgoing
On, the most separate light is projected directly on described detector.
Embodiment 2:
Optical spectroscopic device according to this utility model embodiment 1 and control method application in continuous flue gas monitoring
Example.
As shown in Figure 1, 2, in this application examples, grating uses concave grating, four on the relative both wings of the second bearing
Mark closely 24 to be fixed by described concave grating；Two regulation screws are arranged on the various location up and down of connecting portion, and prop up described
Diverse location on grating above-below direction；First bearing and three abutments are fixed on base by alignment pin；Use on base
In fixing the length of through hole of the second bearing more than the external diameter of fixing screw so that fixing screw moves in through hole and fixes the
Two bearings, thus regulate the second bearing i.e. distance of grating opposing slit, detector；The material of transparent window film uses quartz；Institute
State the first bearing, the standing part (facing the part of described base) of three abutments faces toward described second bearing；Described connecting portion
Part 27 hollow out of mid portion of the vertical direction facing described both wings；Linear array detector is with being parallel to base and circuit board
Being arranged on described three abutments by four screws, these four screws can finely tune the position of detector respect thereto.
The control method of above-mentioned optical spectroscopic device is:
Mobile second bearing, and the second bearing is fixed on base, by described regulation by described fixing screw 25
Screw 26 adjusts the angle of inclination of described grating respect thereto plane, and uses four 24 and mark closely fixing described grating, by institute
State the screw on three abutments and regulate the described detector position relative to three abutments so that be direct from the light of described slit outgoing
Projecting on described grating, the most separate light is projected directly on described detector.
Embodiment 3:
Optical spectroscopic device according to this utility model embodiment 1 and control method application in continuous flue gas monitoring
Example.
In this application examples, grating uses concave grating, is fixed on the relative both wings of the second bearing two and marks closely edge
Being radially arranged of described concave grating；Two regulation screws are arranged on the various location up and down of connecting portion, and prop up described
Diverse location on grating above-below direction, contact point is respectively at the both sides up and down of the line that said two is marked closely so that regulation
During regulation screw, described grating can rotate with two lines marked closely for axis, namely the angle of grating respect thereto becomes
Change；First bearing and three abutments are fixed on base by alignment pin；The through hole for fixing the second bearing on base
Length is more than the external diameter of fixing screw so that fixing screw moves and fix the second bearing in through hole, thus regulates second
The seat i.e. distance of grating opposing slit, detector；The material of transparent window film uses quartz；Described first bearing, three abutments
Standing part (facing the part of described base) faces toward described second bearing；The vertical side facing described both wings of described connecting portion
To the part hollow out of mid portion；Linear array detector is with being parallel to base and circuit board is arranged on described the by four screws
On three abutments, these four screws can finely tune the position of detector respect thereto.
Claims (8)
1. an optical spectroscopic device, described optical spectroscopic device includes slit, grating, detector and base；It is characterized in that:
Described optical spectroscopic device farther includes:
First bearing, described first bearing is L-shaped, and is fixed on described base, and described slit and fibre-optical splice are fixed on
On described first bearing；
Second bearing, described second bearing is arranged on from the light path of described slit emergent light, and is fixed on by fixing screw
On described base；The profile of the horizontal cross-section on the top of described second bearing is in " [" type, described grating and overcoat thereof are stuck in described
" in [" type structure；Described " have on the relative both wings of [" type structure to mark closely and prop up described grating, described relative both wings
There is at differing heights on connecting portion regulation screw and prop up described grating；
Three abutments, described three abutments is L-shaped, is arranged on the light splitting optical path of described grating, and is fixed on described base
On.
Optical spectroscopic device the most according to claim 1, it is characterised in that: the portion facing described both wings of described connecting portion
Divide hollow out.
Optical spectroscopic device the most according to claim 1, it is characterised in that: described fibre-optical splice is fixed on institute by flange
Stating on the first bearing, slit trim ring props up in described slit fixing lower slit window, and described slit window is located respectively with described flange
Both sides in described bearing.
Optical spectroscopic device the most according to claim 1, it is characterised in that: arrange in the light path of described detector upstream
Bright window.
Optical spectroscopic device the most according to claim 1, it is characterised in that: described detector is parallel to described base plane
Arrange.
Optical spectroscopic device the most according to claim 1, it is characterised in that: be suitable to described fixing spiral shell on described second bearing
Follow closely through the length of through hole more than the external diameter of described fixing screw.
Optical spectroscopic device the most according to claim 1, it is characterised in that: from the direct of travel of described slit emergent light
On, the internal diameter of described grating trim ring becomes larger.
Optical spectroscopic device the most according to claim 1, it is characterised in that: described detector and process circuit thereof pass through spiral shell
Nail is fixed on described three abutments.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620713348.XU CN205748635U (en) | 2016-06-30 | 2016-06-30 | Optical spectroscopic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620713348.XU CN205748635U (en) | 2016-06-30 | 2016-06-30 | Optical spectroscopic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205748635U true CN205748635U (en) | 2016-11-30 |
Family
ID=57377980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620713348.XU Active CN205748635U (en) | 2016-06-30 | 2016-06-30 | Optical spectroscopic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205748635U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106197664A (en) * | 2016-06-30 | 2016-12-07 | 杭州泽天科技有限公司 | Optical spectroscopic device and control method thereof |
| CN112556846A (en) * | 2020-11-24 | 2021-03-26 | 合肥立睿光电科技有限公司 | Optical fiber spectrometer and implementation method |
-
2016
- 2016-06-30 CN CN201620713348.XU patent/CN205748635U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106197664A (en) * | 2016-06-30 | 2016-12-07 | 杭州泽天科技有限公司 | Optical spectroscopic device and control method thereof |
| CN112556846A (en) * | 2020-11-24 | 2021-03-26 | 合肥立睿光电科技有限公司 | Optical fiber spectrometer and implementation method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |