CN207703702U - A kind of interchangeable gas compartment of length light path - Google Patents
A kind of interchangeable gas compartment of length light path Download PDFInfo
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- CN207703702U CN207703702U CN201820091355.XU CN201820091355U CN207703702U CN 207703702 U CN207703702 U CN 207703702U CN 201820091355 U CN201820091355 U CN 201820091355U CN 207703702 U CN207703702 U CN 207703702U
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- speculum
- cavity
- optical fiber
- collimation lens
- light path
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Abstract
The utility model proposes a kind of interchangeable gas compartment of length light path, including cavity, lamp source component, optical fiber component, speculum and collimation lens, the lamp source component and the optical fiber component are equipped with outside one end of the cavity；The first collimation lens of parallel setting and the second collimation lens inside one end of the cavity；The first speculum of parallel setting and the second speculum inside the other end of the cavity, first speculum is adjustably connected in the cavity by the first speculum fixed seat, and second speculum is adjustably connected in the cavity by the second speculum fixed seat；Third speculum is alternatively provided between first collimation lens and the second collimation lens.The gas compartment that the application proposes realizes the measurement and application of two kinds of light paths in single gas compartment by replacing the position of different speculum fixed seats, can also increase or decrease measurement light path, compact-sized, adjusts simple, reduction cost of installation and maintenance.
Description
Technical field
The utility model belongs to field of gas detection, and in particular to a kind of interchangeable gas compartment of length light path.
Background technology
In field of gas detection, the structure and performance of gas detection special gas room are most important.Occur currently on the market
Gas compartment according to light beam, the propagation path in gas compartment is substantially divided to two classes：One kind is monochromatic light road gas chamber, i.e., short light path；One kind is
Multi-pass gas chamber, i.e. long light path.In the gas chamber of monochromatic light road, after the collimated collimated of light beam only in gas chamber by primary, light path
It is subject to the length of gas compartment, may be configured as several centimetres to several meters, this air chamber structure is simple, but needs to measure longer light path
When, the size of gas chamber is larger.In multi-pass gas chamber, after the collimated collimated of light beam, multiple reflections are passed through in gas chamber, effectively
Sensing length increases, but air chamber structure is complicated, and processing request is high.
Therefore, monochromatic light road gas chamber or multi-pass gas chamber are to meet different gas detection demands, are required to be processed into various
The size and shape of various kinds, so that storage and purchase cost increase, installation cost also increases, formal also more stiff.
Invention content
In view of the above-mentioned deficiencies in the prior art, the utility model proposes a kind of interchangeable gases of length light path
Room changes the technological deficiency that gas compartment processing dimension is brought according to different demands to avoid above-mentioned, improves measurement sensitivity and essence
Degree reduces cost of installation and maintenance.
To achieve the above object, the utility model uses following technical scheme：
A kind of interchangeable gas compartment of length light path, including cavity, lamp source component, optical fiber component, speculum and collimation are saturating
One end outside of mirror, the cavity is equipped with the lamp source component and the optical fiber component；It is parallel inside one end of the cavity
First collimation lens and the second collimation lens are set；It is parallel inside the other end of the cavity that the first speculum and second is set instead
Mirror is penetrated, first speculum is adjustably connected in the cavity by the first speculum fixed seat, second reflection
Mirror is adjustably connected in the cavity by the second speculum fixed seat；Third speculum is alternatively provided at described
Between collimating lens and the second collimation lens；The upside of the cavity is equipped with air inlet, and downside is equipped with gas outlet.
Preferably, first speculum and second speculum are arranged parallel, and the third speculum is set to institute
It states between the first collimation lens and the second collimation lens, first speculum, second speculum and third reflection
The position triangular shape of mirror in the cavity.
Preferably, the first speculum fixed seat and the second speculum fixed seat are adjusted, make first speculum and
Second speculum is symmetrical arranged in 45 °, is not provided with the third speculum.
Preferably, described to be adjustably connected as screw connection.
Preferably, the lamp source component includes lamp source and lamp source holder, and the lamp source is fixed on the lamp source holder, institute
The one end for stating lamp source is coupled to first collimation lens, and the lamp source holder is connected by screw in one end of the cavity.
Preferably, the optical fiber component includes optical fiber, optical fiber interface and optical fiber adjustment seat；The optical fiber connects with the optical fiber
Mouth thread seal connection, the optical fiber interface are fitted into the optical fiber adjustment seat, and the one end open screw thread of the cavity connects
It is hinged with into the optical fiber adjustment seat.
Preferably, one end of the optical fiber is coupled to second collimation lens, and the other end is connected to spectrometer.
Preferably, a temperature sensing seat is additionally provided in the cavity.
Compared with prior art, advantageous effect is the utility model：By replace different speculum fixed seats and position come
The measurement and application for realizing two kinds of light paths in single gas compartment can also increase or decrease measurement light path, compact-sized, adjust letter
It is single, measurement sensitivity and precision are improved, cost of installation and maintenance is reduced.
Description of the drawings
In order to illustrate more clearly of the utility model embodiment or the technical solution of the prior art, below will to embodiment or
The required attached drawing of description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of utility model, for those of ordinary skill in the art, without creative efforts, also
It can be obtain other attached drawings according to these attached drawings.
Fig. 1 is the gas compartment structural schematic diagram realized long light path and measured of the utility model.
Fig. 2 is the gas compartment structural schematic diagram that the short light path of realization of the utility model measures.
Reference numeral：1-lamp source, 2-lamp source holders, 3-optical fiber, 4-third speculum fixed seats, 5-optical fiber interfaces,
6-optical fiber adjustment seats, 7-air inlets, 8-cavitys, the 9-the second speculum fixed seat, the 10-the second speculum, 11-temperature are visited
Survey seat, the 12-the first speculum fixed seat, the 13-the first speculum, 14-gas outlets, 15-third speculums.
Specific implementation mode
In order to enable those skilled in the art to better understand the technical solutions of the present invention, below in conjunction with attached drawing and
Specific embodiment carries out the interchangeable gas compartment of the length light path of the utility model to introduce explanation in detail.
As illustrated in fig. 1 and 2, the herein described interchangeable gas compartment of length light path includes：Cavity 8, lamp source component, optical fiber
Component, speculum and collimation lens.The lamp source component and optical fiber component are equipped with outside one end of cavity 8, the one of the cavity 8
The first collimation lens of the internal parallel setting in end, the second collimation lens, the other end of cavity 8 are internally provided with the first speculum 13 and the
First speculum 13 is adjustably connected in cavity 8 by two-mirror 10, the first speculum fixed seat 12, and the second speculum is solid
Second speculum 10 is adjustably connected in cavity 8 by reservation 9.The upside of cavity 8 is equipped with air inlet 7, and downside is equipped with outlet
Mouth 14.Third speculum 15 is alternatively provided between the first collimation lens and the second collimation lens, and is reflected by third
Mirror fixed seat 4 is fixedly mounted in cavity 8.
In the present embodiment, speculum fixed seat is connected by screw in the cavity, passes through the via fixed bit of adjusting screw
It sets to change the position and direction of speculum fixed seat, to change the angle of speculum.
In the present embodiment, lamp source component includes lamp source 1, lamp source holder 2, and optical fiber component includes optical fiber 3, optical fiber interface 5, light
Fine adjustment seat 6.Lamp source 1 is fixed on lamp source holder 2, and one end of lamp source is coupled to the first collimation lens, lamp source holder 2 and gas
8 right side lower end of room is connected by screw, and seal is encrypted in lamp source holder 2, to form confined space in gas compartment 8；Gas
Sealing, which is threadedly coupled, in 8 right side upper end opening of room is packed into optical fiber adjustment seat 6, described to form confined space in gas compartment 8
Optical fiber 3 connect by thread seal with optical fiber interface 5, and optical fiber interface 5 is fitted into optical fiber adjustment seat 6, and border uniformly adds four
A holding screw is fixed, and 3 one end of optical fiber is coupled to the second collimation lens, the other end is connected to spectrometer.It is additionally provided with temperature in cavity 8
Degree detection seat 11, for the temperature in external temperature detecting device detection cavity 8.
As shown in Figure 1, the utility model is realized in the gas compartment of long light path measurement, the first speculum 13 and the second speculum
10 parallel settings, third speculum 15 are set between the first collimation lens and the second collimation lens, the first speculum 13, second
The position triangular shape of speculum 10 and third speculum 15 in cavity 8.Long light path measuring principle is：Gas is from air inlet
7 enter cavity 8, inside cavity 8, are discharged from gas outlet 14；Meanwhile the light beam of lamp source 1 is directed into the first collimation lens, warp
Through the first speculum 13 third speculum 15 is reflexed to after first collimation lens collimation, then reflexes to the through third speculum 15
Two-mirror 10 most reflexes to the second collimation lens through the second speculum 10 afterwards, projects, passes through after the second collimation lens collimation
Optical fiber interface 5 is transferred to spectrometer by optical fiber 3, and the spectrum with concentration information is obtained after spectrometer analysis processing.
As shown in Fig. 2, the utility model is realized in the gas compartment of short light path measurement, the screw mistake of speculum fixed seat is adjusted
Hole fixed position so that the first speculum 13 and the second speculum 10 are symmetrical arranged in 45 °, are not provided with third speculum 15.It is short
Light path measuring principle is：Gas enters cavity 8 from air inlet 7, inside cavity 8, is discharged from gas outlet 14；Meanwhile lamp source 1
Light beam be directed into the first collimation lens, through the first collimation lens collimation after through the first speculum 13 reflect the second speculum 10,
The second collimation lens is reflexed to through the second speculum 10, is projected after the second collimation lens collimation, passes through light by optical fiber interface 5
Fibre 3 is transferred to spectrometer, and the spectrum with concentration information is obtained after spectrometer analysis processing.
In gas compartment described in the utility model, change the pedestal of the first, second speculum, you can change beam Propagation side
To, it is simple, convenient, meanwhile, it can also select to increase third speculum to increase measurement light path, thus according to measurement demand
Realize the exchange of length light path.This gas compartment need not process different sizes according to measurement demand, it is only necessary to change speculum
Pedestal and the number of position and speculum can be realized in single gas compartment the measurements of two kinds of different light paths, it is compact-sized, adjust
Section is simple, reduces cost of installation and maintenance.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (8)
1. a kind of interchangeable gas compartment of length light path, including cavity, lamp source component, optical fiber component, speculum and collimation lens,
It is characterized in that：
The lamp source component and the optical fiber component are equipped with outside one end of the cavity；It is parallel inside one end of the cavity
First collimation lens and the second collimation lens are set；
The first speculum of parallel setting and the second speculum, first speculum pass through first inside the other end of the cavity
Speculum fixed seat adjustably connects in the cavity, and second speculum is adjustable by the second speculum fixed seat
Ground connects in the cavity；
Third speculum is alternatively provided between first collimation lens and the second collimation lens；
The upside of the cavity is equipped with air inlet, and downside is equipped with gas outlet.
2. the interchangeable gas compartment of length light path according to claim 1, it is characterised in that：First speculum and institute
The second speculum to be stated parallel to be arranged, the third speculum is set between first collimation lens and the second collimation lens,
First speculum, the position triangular shape of second speculum and the third speculum in the cavity.
3. the interchangeable gas compartment of length light path according to claim 1, it is characterised in that：Adjust first speculum
Fixed seat and the second speculum fixed seat make first speculum and second speculum are symmetrical arranged in 45 °, are not provided with
The third speculum.
4. the interchangeable gas compartment of length light path according to any one of claim 1-3, it is characterised in that：It is described adjustable
It saves land and is connected as screw connection.
5. the interchangeable gas compartment of length light path according to claim 1, it is characterised in that：The lamp source component includes lamp
Source and lamp source holder, the lamp source are fixed on the lamp source holder, and one end of the lamp source is coupled to first collimation thoroughly
Mirror, the lamp source holder are connected by screw in one end of the cavity.
6. the interchangeable gas compartment of length light path according to claim 1, it is characterised in that：The optical fiber component includes light
Fine, optical fiber interface and optical fiber adjustment seat；The optical fiber is connect with the optical fiber interface thread seal, and the optical fiber interface is packed into institute
It states in optical fiber adjustment seat, the one end open of the cavity, which is threadedly coupled, is packed into the optical fiber adjustment seat.
7. the interchangeable gas compartment of length light path according to claim 6, it is characterised in that：One end of the optical fiber couples
To second collimation lens, the other end is connected to spectrometer.
8. the interchangeable gas compartment of length light path according to claim 1, it is characterised in that：It is additionally provided with one in the cavity
Temperature sensing seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820091355.XU CN207703702U (en) | 2018-01-19 | 2018-01-19 | A kind of interchangeable gas compartment of length light path |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820091355.XU CN207703702U (en) | 2018-01-19 | 2018-01-19 | A kind of interchangeable gas compartment of length light path |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207703702U true CN207703702U (en) | 2018-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820091355.XU Active CN207703702U (en) | 2018-01-19 | 2018-01-19 | A kind of interchangeable gas compartment of length light path |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987803A (en) * | 2019-12-11 | 2020-04-10 | 上海大学 | Gas absorption pool with flexible structure, adjustable optical path and convenient disassembly |
-
2018
- 2018-01-19 CN CN201820091355.XU patent/CN207703702U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987803A (en) * | 2019-12-11 | 2020-04-10 | 上海大学 | Gas absorption pool with flexible structure, adjustable optical path and convenient disassembly |
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