CN106872390A - Collimation and optical path length adjust gas-detecting device - Google Patents
Collimation and optical path length adjust gas-detecting device Download PDFInfo
- Publication number
- CN106872390A CN106872390A CN201710180465.3A CN201710180465A CN106872390A CN 106872390 A CN106872390 A CN 106872390A CN 201710180465 A CN201710180465 A CN 201710180465A CN 106872390 A CN106872390 A CN 106872390A
- Authority
- CN
- China
- Prior art keywords
- pedestal
- light source
- detector
- air chamber
- optical path
- 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.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 17
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 92
- 238000001514 detection method Methods 0.000 description 6
- 230000005855 radiation Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008033 biological extinction Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/255—Details, e.g. use of specially adapted sources, lighting or optical systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/06—Illumination; Optics
- G01N2201/066—Modifiable path; multiple paths in one sample
Abstract
Gas-detecting device, including light source and pedestal, tubulose air chamber, detector and pedestal, main circuit board are adjusted the invention discloses one kind collimation and optical path length；Light source and pedestal and detector and pedestal are cube structure and be arranged in parallel, tubulose air chamber is located between light source and pedestal and detector and pedestal and passes through light source and pedestal and detector and base interior, it is variable that light source and pedestal and detector and pedestal are arranged on relative position on main circuit board, in light source and the inside of pedestal and detector and pedestal, tubulose air chamber is collimated by four spacing guide rods, wherein two spacing guide rods are located at the both sides up and down of tubulose air chamber, two spacing guide rods are horizontally disposed with positioned at the left and right sides of tubulose air chamber, and the spacing guide rod of upper and lower both sides is not on a vertical line, horizontally disposed spacing guide rod is opposing parallel.The present invention realizes that light source and pedestal and detector and pedestal relative position are variable, and improves light path collimation.
Description
Technical field
The invention belongs to field of gas detection, a kind of collimation and optical path length regulation gas detection dress are more particularly related to
Put.
Background technology
Gas industry vocabulary of terms.The vibration and rotation spectrum of majority of gas molecule are all in infrared band.When incidence is red
When the frequency of external radiation is identical with the vibration rotation feature frequency of molecule, infra-red radiation will be absorbed by gas molecule, cause
The decay of radiation intensity.
The infrared gas analyser being made to the principle of infrared radiation absorption using this gas molecule, with measurement essence
Degree is high, speed it is fast and can METHOD FOR CONTINUOUS DETERMINATION the features such as, in steel, petrochemical industry, chemical fertilizer, the industrial department, infrared-gas such as machinery
Analyzer is the important monitoring means of production procedure control；At environmental pollutants detection and the aspect such as medical science physiological Study also all
There are many successful applications.
A length of 2-12 μm conventional of infrared wave of infrared analyzer.It is exactly briefly continuously to lead under test gas
The container of certain length and volume is crossed, can be incident a branch of infrared with an end face side in the two of printing opacity end faces from container
Light, then determines ultrared radiation intensity in another end face, then according to ultrared absorption and the concentration of extinction material
It is directly proportional and just may know that the concentration of tested gas.
Lambert-Beer law --- its physical significance is when a branch of collimated monochromatic ligth is perpendicular through a certain uniform non-scatter
Extinction material when its absorbance be directly proportional to the concentration and absorber thickness of extinction material.Here it is infrared ray gas analyzer
Beasurement base.
Health and epidemic prevention department, environment measuring Zhan Deng departments, to hotel, shop, cinema, dance hall, hospital, compartment, cabin
Deng the measure of the various gas concentrations of public arena.Can also be used for lab analysis.
According to the different demands of user, the principle instrument is mainly used in measuring the gas concentrations such as CO2, CO, CH4, SO2.
Because detection means is higher for the collimation requirement of air chamber, and the most of regular lengths of air chamber at present, for not
Same light path cannot be adjusted, and adaptability is poor.
The content of the invention
1st, goal of the invention.
The present invention proposes a kind of collimation and optical path length adjusts gas-detecting device, can adjust the length of air chamber, carries
The collimation of air chamber high, so as to improve the precision of detection.
2nd, the technical solution adopted in the present invention.
It is variable in order to realize light source and pedestal and detector and pedestal relative position, and improve light path collimation.This
A kind of collimation and optical path length that invention is proposed adjust gas-detecting device, including light source and pedestal, tubulose air chamber, detector and
Pedestal, main circuit board；Light source and pedestal and detector and pedestal are cube structure and be arranged in parallel that tubulose air chamber is located at light source
And between pedestal and detector and pedestal and pass through light source and pedestal and detector and base interior, light source and pedestal and detector
And pedestal is variable installed in relative position on main circuit board, in light source and the inside of pedestal and detector and pedestal, by four
Spacing guide rod is collimated to tubulose air chamber, wherein two spacing guide rods are located at the both sides up and down of tubulose air chamber, two spacing to lead
Bar is horizontally disposed with positioned at the left and right sides of tubulose air chamber, and up and down both sides spacing guide rod not on a vertical line, level sets
The spacing guide rod put is opposing parallel.
In order to avoid the interference to air chamber, also including sliding guide, also including sliding guide, light source and pedestal are arranged on
Outside lower position.
Further in specific embodiment, main circuit board sets the cunning being engaged with light source and pedestal lower section sliding guide
Dynamic guide rail.
In order to improve the collimation between light source and pedestal and detector and pedestal, described rail plate is parallel two
Individual rail plate.
Interference in order to avoid rail plate to circuit board, the lower section of rail plate sets fixed support.
In order to not only avoid interference of the rail plate to circuit board, the stability of rail plate is further improved, reduce ring
Influence of the vibrations in border to rail plate collimation, sets the corner that 4 supports are located at rail plate.
Further in specific embodiment, also it is arranged on light source and pedestal including light source driving circuit plate.
Further in specific embodiment, also it is arranged on detector and pedestal including amplifying circuit.
Further in specific embodiment, also it is arranged on main circuit board including interface.
3rd, the technique effect produced by the present invention.
(1) present invention is by horizontal relative adjustment, while setting is adjusted to the position of spacing guide rod, by Level tune
And the air chamber instability problem of level, horizontal guide is not coordinated on same vertical line by vertical spacing guide rod, realize water
Square to air chamber stability, improve the precision of detection.
(2) sliding guide of the present invention, is arranged on the outside of light source and pedestal, reduces the interference to air chamber.
(3) present invention is improved between light source and pedestal and detector and pedestal by setting two parallel rail plates
Collimation.
(4) lower section of rail plate of the present invention sets fixed support, it is to avoid interference of the rail plate to circuit board.
(5) present invention sets the corner that 4 supports are located at rail plate, further improves the stability of rail plate.
Brief description of the drawings
Fig. 1 is overall structure figure of the invention.
Fig. 2 is air chamber shortening structure figure of the invention.
Fig. 3 is air chamber extending structure figure of the invention.
Fig. 4 is sectional view of the invention.
Fig. 5 is attached view of the invention.
Description of reference numerals：
Light source driving circuit plate 1, light source and pedestal 2, tubulose air chamber 3, detector and pedestal 4, amplifying circuit 5, slip are led
Rail 6, main circuit board 7, interface 8, spacing guide rod 9.
Specific embodiment
Embodiment 1
It is variable in order to realize light source and pedestal and detector and pedestal relative position, and improve light path collimation.This
A kind of collimation and optical path length that invention is proposed adjust gas-detecting device, including light source and pedestal 2, tubulose air chamber 3, detector
And pedestal 4, main circuit board 7；Light source and pedestal 2 and detector and pedestal 4 be cube structure and be arranged in parallel, tubulose air chamber 3
Between light source and pedestal 2 and detector and pedestal 4 and through inside light source and pedestal 2 and detector and pedestal 4, light source and
It is variable that pedestal 2 and detector and pedestal 4 are arranged on relative position on main circuit board 7, in light source and pedestal 2 and detector and pedestal
4 inside, is collimated by four spacing guide rods 9 to tubulose air chamber 3, wherein two spacing guide rods 9 are located at tubulose air chamber 3
The spacing guide rod 9 of upper and lower both sides, two horizontally disposed left and right sides positioned at tubulose air chamber 3 of spacing guide rod 9, and upper and lower both sides is not
On a vertical line, horizontally disposed spacing guide rod 9 is opposing parallel.
Embodiment 2
A kind of collimation proposed by the present invention and optical path length adjust gas-detecting device, including light source and pedestal 2, tubulose gas
Room 3, detector and pedestal 4, main circuit board 7；Light source and pedestal 2 and detector and pedestal 4 be cube structure and be arranged in parallel,
Tubulose air chamber 3 is located between light source and pedestal 2 and detector and pedestal 4 and passes through in light source and pedestal 2 and detector and pedestal 4
Portion, light source and pedestal 2 and detector and pedestal 4 are arranged on main circuit board 7 that relative position is variable, and sliding guide is arranged on light source
And the outside lower position of pedestal.Main circuit board 7 sets the rail plate being engaged with light source and the lower section sliding guide of pedestal 2,
Described rail plate is two parallel rail plates.
In light source and the inside of pedestal 2 and detector and pedestal 4, standard is carried out to tubulose air chamber 3 by four spacing guide rods 9
Directly, wherein two spacing guide rods 9 are positioned at the both sides up and down of tubulose air chamber 3, two spacing guide rods 9 are horizontally disposed positioned at tubulose air chamber
3 left and right sides, and the spacing guide rod 9 of both sides is not on a vertical line up and down, horizontally disposed spacing guide rod 9 is relatively flat
OK.
Interference in order to avoid rail plate to circuit board, the lower section of rail plate sets fixed support.
In order to not only avoid interference of the rail plate to circuit board, the stability of rail plate is further improved, reduce ring
Influence of the vibrations in border to rail plate collimation, sets the corner that 4 supports are located at rail plate.Light source driving circuit plate 1
4 on light source and pedestal.Amplifying circuit 5 is arranged on detector and pedestal 4.Interface is arranged on main circuit board 1.
Above-described embodiment is the present invention preferably implementation method, but embodiments of the present invention are not by above-described embodiment
Limitation, it is other it is any without departing from Spirit Essence of the invention and the change, modification, replacement made under principle, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (9)
1. a kind of collimation and optical path length adjust gas-detecting device, including light source and pedestal (2), tubulose air chamber (3), detector
And pedestal (4), main circuit board (7)；Light source and pedestal (2) and detector and pedestal (4) is for cubic structure and be arranged in parallel, tubulose
Air chamber is located between light source and pedestal (2) and detector and pedestal (4) and passes through light source and pedestal (2) and detector and pedestal
It is (4) internal, it is characterised in that：Light source and pedestal (2) and detector and pedestal (4) relative position on main circuit board (7)
It is variable, in light source and the inside of pedestal (2) and detector and pedestal (4), by four spacing guide rods (9) to tubulose air chamber (3)
Collimated, wherein two spacing guide rods (9) are positioned at the both sides up and down of tubulose air chamber (3), two spacing guide rods are horizontally disposed (9)
Positioned at the left and right sides of tubulose air chamber (3), and the spacing guide rod (9) of both sides not on a vertical line, is horizontally disposed with (9) up and down
Spacing guide rod it is opposing parallel.
2. collimation according to claim 1 and optical path length adjust gas-detecting device, it is characterised in that：Also include sliding
Guide rod, is arranged on the outside lower position of light source and pedestal (2).
3. collimation according to claim 2 and optical path length adjust gas-detecting device, it is characterised in that：Main circuit board
(7) rail plate (6) being engaged with light source and pedestal (2) lower section sliding guide is set.
4. collimation according to claim 3 and optical path length adjust gas-detecting device, it is characterised in that：Described slip
Guide rail (6) is two parallel rail plates.
5. collimation according to claim 3 and optical path length adjust gas-detecting device, it is characterised in that：Rail plate
Lower section sets fixed support.
6. collimation according to claim 3 and optical path length adjust gas-detecting device, it is characterised in that：4 branch are set
Frame is located at the corner of rail plate.
7. collimation according to claim 1 and optical path length adjust gas-detecting device, it is characterised in that：Also include light source
Drive circuit board (1) is on light source and pedestal (2).
8. collimation according to claim 1 and optical path length adjust gas-detecting device, it is characterised in that：Also include amplifying
Circuit (5) is on detector and pedestal (4).
9. collimation according to claim 1 and optical path length adjust gas-detecting device, it is characterised in that：Also include interface
(8) on main circuit board (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710180465.3A CN106872390A (en) | 2017-03-24 | 2017-03-24 | Collimation and optical path length adjust gas-detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710180465.3A CN106872390A (en) | 2017-03-24 | 2017-03-24 | Collimation and optical path length adjust gas-detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106872390A true CN106872390A (en) | 2017-06-20 |
Family
ID=59172914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710180465.3A Pending CN106872390A (en) | 2017-03-24 | 2017-03-24 | Collimation and optical path length adjust gas-detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106872390A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112649389A (en) * | 2020-12-07 | 2021-04-13 | 珠海格力电器股份有限公司 | Sensor optical path component, gas sensor, measuring method and air conditioning system |
| WO2021184130A1 (en) * | 2020-03-19 | 2021-09-23 | Technologies Intelia Inc. | Method and apparatus for long term accurate measurement of ammonia gas concentration in a permanent ammonia gas environment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2903972Y (en) * | 2006-03-16 | 2007-05-23 | 北京航天益来电子科技有限公司 | Variable optical path tester for smoke concentration |
| CN103884671A (en) * | 2014-03-12 | 2014-06-25 | 中国计量学院 | Nondispersive infrared (NDIR) CO2 gas sensor |
| CN104833645A (en) * | 2015-05-13 | 2015-08-12 | 南京信息工程大学 | Gas sensor with adjustable range, sensing system and sensing method |
| CN204575529U (en) * | 2015-05-13 | 2015-08-19 | 南京信息工程大学 | A kind of range adjustable type gas sensor, sensor-based system |
| CN206740640U (en) * | 2017-03-24 | 2017-12-12 | 江苏舒茨测控设备股份有限公司 | Collimation and optical path length regulation gas-detecting device |
-
2017
- 2017-03-24 CN CN201710180465.3A patent/CN106872390A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2903972Y (en) * | 2006-03-16 | 2007-05-23 | 北京航天益来电子科技有限公司 | Variable optical path tester for smoke concentration |
| CN103884671A (en) * | 2014-03-12 | 2014-06-25 | 中国计量学院 | Nondispersive infrared (NDIR) CO2 gas sensor |
| CN104833645A (en) * | 2015-05-13 | 2015-08-12 | 南京信息工程大学 | Gas sensor with adjustable range, sensing system and sensing method |
| CN204575529U (en) * | 2015-05-13 | 2015-08-19 | 南京信息工程大学 | A kind of range adjustable type gas sensor, sensor-based system |
| CN206740640U (en) * | 2017-03-24 | 2017-12-12 | 江苏舒茨测控设备股份有限公司 | Collimation and optical path length regulation gas-detecting device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021184130A1 (en) * | 2020-03-19 | 2021-09-23 | Technologies Intelia Inc. | Method and apparatus for long term accurate measurement of ammonia gas concentration in a permanent ammonia gas environment |
| CN112649389A (en) * | 2020-12-07 | 2021-04-13 | 珠海格力电器股份有限公司 | Sensor optical path component, gas sensor, measuring method and air conditioning system |
| CN112649389B (en) * | 2020-12-07 | 2022-03-08 | 珠海格力电器股份有限公司 | Sensor optical path component, gas sensor, measuring method and air conditioning system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Etheridge et al. | Building ventilation: theory and measurement | |
| KR101098124B1 (en) | Multigas Monitoring And Detection System | |
| CN206740640U (en) | Collimation and optical path length regulation gas-detecting device | |
| CN106872390A (en) | Collimation and optical path length adjust gas-detecting device | |
| KR100419094B1 (en) | gas identification device | |
| US20180259452A1 (en) | Gas analyzer with low optical noise | |
| CA2738820C (en) | An arrangement adapted for spectral analysis of high concentrations of gas | |
| JP2012150095A (en) | Gas concentration measuring device | |
| US20090183552A1 (en) | Gas detector having an acoustic measuring cell and selectively adsorbing surface | |
| RU2327984C1 (en) | Multi-channel piezo sensor "electronic nose" | |
| KR20090034668A (en) | Ndir gas analyzer and gas analyzing method using the same | |
| CN105928840A (en) | Method using single point adsorption method to measure specific surface area of atmospheric particulates | |
| CN210005431U (en) | device for measuring gas concentration in glass container and glass container quality inspection equipment | |
| Luo et al. | Ppbv-level mid-infrared photoacoustic sensor for mouth alcohol test after consuming lychee fruits | |
| CA1122434A (en) | Gas measuring apparatus with standardization means, and method therefor | |
| KR101997729B1 (en) | Apparatus and method for Measuring and Reducing Fine Dust | |
| US3700891A (en) | Device for the nondispersive infrared gas analysis | |
| McCAMMON et al. | An evaluation of a passive monitor for mercury vapor | |
| JP2019502126A5 (en) | ||
| Tokida | Increasing measurement throughput of methane emission from rice paddies with a modified closed-chamber method | |
| CN106053437A (en) | A device detecting NO through chemiluminescence and a detecting method thereof | |
| CN206353129U (en) | One kind is based on the irreflexive portable near-infrared detection apparatus of plane | |
| Fong et al. | Simple near-infrared spectrometric sorption-based vapor sensor | |
| US20130312491A1 (en) | Device and method for determining the permeation rate of barrier elements and ultra-barrier elements | |
| CN109406440B (en) | Gas detection method based on chalcogenide glass suspension core optical fiber |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170620 |
|
| RJ01 | Rejection of invention patent application after publication |