CN205749272U - Infrared carbon monoxide sensor - Google Patents
Infrared carbon monoxide sensor Download PDFInfo
- Publication number
- CN205749272U CN205749272U CN201620650104.1U CN201620650104U CN205749272U CN 205749272 U CN205749272 U CN 205749272U CN 201620650104 U CN201620650104 U CN 201620650104U CN 205749272 U CN205749272 U CN 205749272U
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- China
- Prior art keywords
- infrared
- circuit
- air chamber
- carbon monoxide
- infrared light
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- 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.)
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 229910002091 carbon monoxide Inorganic materials 0.000 title claims abstract description 37
- 238000005259 measurement Methods 0.000 claims description 20
- 230000003287 optical effect Effects 0.000 claims description 8
- 230000003750 conditioning effect Effects 0.000 claims description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 14
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 7
- 239000001569 carbon dioxide Substances 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 9
- 230000005611 electricity Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
This utility model relates to a kind of Infrared Carbon Monoxide sensor, including: optics, measuring circuit, display circuit；Optics, measuring circuit, display circuit are sequentially connected with；Optics includes infrared light supply, measures air chamber, infrared detector；The inwall measuring air chamber is evenly arranged with multiple temperature compensation means.Optics of the present utility model includes infrared light supply, measures air chamber, infrared detector, and infrared light supply is used for launching Infrared；Measure plenum interior installation infrared light source, infrared detector, be available for infrared light, carbon dioxide is fully contacted；The decay of infrared light is measured again by infrared detector；The attenuation data detected is transferred to measuring circuit by infrared detector, and measuring circuit demonstrates the concentration of carbon dioxide again by display circuit；Temperature compensation means is avoided detecting data and error is occurred；This infrared carbon dioxide sensor construction is simple, with low cost, and good stability is highly sensitive.
Description
Technical field
This utility model relates to gas detection sensor technical field, particularly relates to a kind of Infrared Carbon Monoxide sensor.
Background technology
Infrared Carbon Monoxide sensor is used for colliery roadway, getting working face, goaf, return air in air detection system
The concentration of carbon monoxide is monitored in tunnel etc. continuously, when carbonomonoxide concentration transfinites, can automatically send sound, light warning, be available for
Coal mine underground operators, gas detecting personnel, down-hole management personnel etc. carry with use, it is possible to make for above-mentioned place is fixing
With.
Tradition carbon monoxide transducer not only structure is complicated, and cost is high, and accuracy of detection is relatively low, adaptive capacity to environment
Weak, stability is not enough.
Summary of the invention
This utility model provides a kind of Infrared Carbon Monoxide sensor, to solve above-mentioned technical problem.
In order to achieve the above object, the technical solution of the utility model is achieved in that
A kind of Infrared Carbon Monoxide sensor, including: optics, measuring circuit, display circuit；
Described optics, measuring circuit, display circuit are sequentially connected with；
Described optics includes infrared light supply, measures air chamber, infrared detector；
Described infrared light supply is for launching the wave-length coverage Infrared in 4.5～4.7 μm；
Described infrared light supply, described infrared detector are arranged at described measurement plenum interior；
Described infrared detector is arranged on the center of described measurement air chamber；
The inwall of described measurement air chamber is evenly arranged with multiple temperature compensation means.
Specifically, the sidewall of described measurement air chamber is circular, and described measurement plenum interior is provided with curved baffle and company
Fishplate bar；Multiple described temperature compensation means are uniformly arranged on the inwall of described curved baffle；Described infrared light supply is arranged on institute
State on connecting plate.
Further, described curved baffle is provided with reflecting piece.
Further, described measurement air chamber be provided centrally with optical filter；Described optical filter is located at described infrared detection
The top of device.
Specifically, described measuring circuit includes modulate circuit, processor, output circuit；
Described infrared detector, described modulate circuit, described processor, described output circuit are sequentially connected with.
Specifically, described display circuit includes LED display and sound and light alarm device；Described LED display, described sound
Light crossing-signal part is connected with described output circuit respectively.
Further, this Infrared Carbon Monoxide sensor also includes: power supply part；Described power supply part includes chargeable electricity
Pond and power line；
Described rechargeable battery respectively with described measuring circuit, described display circuit, described infrared light supply, described infrared inspection
Survey device, described temperature compensation means 7 connects；
Described power line respectively with described measuring circuit, described display circuit, described infrared light supply, described infrared detection
Device, described temperature compensation means connect.
Preferably, described processor is 16/32 bit microprocessor based on ARM kernel；
The signal input part of described processor connects described modulate circuit, and the signal output part of described processor connects described
Output circuit.
Specifically, described sound and light alarm device includes buzzer and light emitting diode.
The technical scheme that the utility model of the disclosure provides can include following beneficial effect: optics includes infrared light
Source, measurement air chamber, infrared detector, infrared light supply is used for launching Infrared；Measure plenum interior installation infrared light source, infrared
Detector, is available for infrared light, carbon dioxide is fully contacted；The decay of infrared light is measured again by infrared detector；Infrared
The attenuation data detected is transferred to measuring circuit by detector, and measuring circuit demonstrates carbon dioxide by display circuit again
Concentration；Temperature compensation means is avoided detecting data and error is occurred；This infrared carbon dioxide sensor construction is simple, with low cost,
Good stability, highly sensitive.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model detailed description of the invention or technical scheme of the prior art, below by right
In detailed description of the invention or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, describe below
In accompanying drawing be embodiments more of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structured flowchart of the infrared carbon dioxide sensor of embodiment one of the present utility model；
Fig. 2 is the internal structure schematic diagram measuring air chamber of embodiment one of the present utility model.
In figure: 1, optics；2, measuring circuit；3, display circuit；4, infrared light supply；5, air chamber is measured；6, infrared inspection
Survey device；7, temperature compensation means；8, curved baffle；9, connecting plate；10, reflecting piece；11, optical filter；12, modulate circuit；13, place
Reason device；14, output circuit；15, LED display；16, sound and light alarm device；17, power supply part；18, rechargeable battery；19, electricity
Source line.
Detailed description of the invention
Technical scheme below with reference to accompanying drawing embodiment each to this utility model carries out clear, complete description, it is clear that
Described embodiment is only a part of embodiment of the present utility model rather than whole embodiments.New based on this practicality
Embodiment in type, other realities all that those of ordinary skill in the art are obtained on the premise of not making creative work
Execute example, broadly fall into the scope that this utility model is protected.
In description of the present utility model, " " center ", " on ", D score, "left", "right", " perpendicular it should be noted that term
Directly ", " level ", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, be only
Must have specific for the ease of describing this utility model and simplification description rather than instruction or the device of hint indication or element
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", should be interpreted broadly " being connected ", " connection ", for example, it may be fix connection, it is also possible to be to removably connect, or integratedly
Connect；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Language concrete meaning in this utility model.
Below by specific embodiment and combine accompanying drawing this utility model is described in further detail.
Embodiment one
A kind of Infrared Carbon Monoxide sensor as shown in Figure 1 and Figure 2, including: optics 1, measuring circuit 2, display electricity
Road 3；Optics 1, measuring circuit 2, display circuit 3 are sequentially connected with；Optics 1 includes infrared light supply 4, measures air chamber 5, red
External detector 6；Infrared light supply 4 is for launching the wave-length coverage Infrared in 4.5～4.7 μm；Infrared light supply 4, infrared detection
It is internal that device 6 is arranged at measuring air chamber 5；Infrared detector 6 is arranged on the center measuring air chamber 5；Measure the inwall of air chamber 5
It is evenly arranged with multiple temperature compensation means 7.
Wherein, optics 1 includes red as the parts that predominantly detect of this Infrared Carbon Monoxide sensor, optics 1
Outer light source 4, measurement air chamber 5, infrared detector 6, need the gas of detectable concentration to be externally entering measurement air chamber 5, infrared light
Source 4 is for launching the wave-length coverage Infrared in 4.5～4.7 μm, the spectral region of the infrared light that carbon monoxide can absorb
Being 4.5～4.7 μm, in the case of commonly using, a length of 4.66 μm of infrared light supply 4 transmitted wave, when carbon monoxide absorbs the energy of infrared light
After amount, the ability of infrared light has decayed, and when the gas concentration of carbon monoxide is the biggest, the decay to infrared light light is the biggest；
Measured the decay of infrared light the most again by infrared detector 6, by measurement gas, gas is measured in the decay of infrared light dense
Degree；And the light energy that infrared light supply 4 can use continuous light source or intermittent light source, continuous light source to send is continuously, by red
Light is modulated by the mating plate of cutting of the driven by motor within outer light source 4, produces the infrared radiating light of characteristic frequency, uses synchronous motor
Require that supply frequency, in narrower range, such as 50 ± 0.5Hz, beyond the scope of regulation, can produce as the analyzer cutting photoelectricity machine
Supply frequency affects error, and the light energy that intermittent light source sends is time dependent, such as light-pulse generator, defeated by controlling
Enter the frequency of the signal of telecommunication of light source, specially voltage or electric current, the infrared radiating light of characteristic frequency can be produced；Measure air chamber 5
Non-spectral formula is used to reflect air chamber；Infrared detector 6 is arranged on the center measuring air chamber 5, and infrared light is measuring air chamber 5 warp
After crossing multiple reflections, when arriving at the infrared detector 6 being positioned at the center measuring air chamber 5, infrared detector 6 can detect
The decay of infrared light, the attenuation data detected is transferred to measuring circuit 2 by infrared detector 6, and measuring circuit 2 is again by display
Circuit 3 demonstrates the concentration of carbon monoxide；Meanwhile, the inwall measuring air chamber 5 is evenly arranged with multiple temperature compensation means 7, ring
The change of border temperature has certain impact to the sensitivity of GAS ABSORPTION and infrared detector 6, is therefore made by temperature compensation means 7
The temperature of optics 1 close to constant temperature, temperature range is at 45 DEG C～50 DEG C so that affecting error in operating temperature range can
To control within ± 1%.
In a kind of possible implementation of this utility model, the sidewall measuring air chamber 5 is circular, measures air chamber 5 internal
It is provided with curved baffle 8 and connecting plate 9；Multiple temperature compensation means 7 are uniformly arranged on the inwall of curved baffle 8；Infrared
Light source 4 is arranged on connecting plate 9.
Wherein, the sidewall measuring air chamber 5 is circular, measures air chamber 5 and is internally provided with curved baffle 8 and connecting plate 9, red
Outer light source 4 is arranged on connecting plate 9, and infrared detector 6 is arranged on the center measuring air chamber 5, curved baffle 8 and measurement air chamber 5
Sidewall can be formed one be available for infrared light, passage that carbon monoxide carries out being fully contacted, carbon monoxide is full of measures air chamber 5
Inside, and infrared light at curved baffle 8 and is measured and is carried out multiple reflections, in reflection the passage that the sidewall of air chamber 5 is formed
During, energy is absorbed by carbon monoxide, and final infrared light arrives the center measuring air chamber 5, then by being arranged on measurement air chamber 5
The infrared detector 6 at center detect the decay of infrared light；Temperature compensation means 7 is uniformly arranged on the inwall of curved baffle 8
On, keeping the temperature of optics 1 close to while constant temperature, do not interfering with infrared ray and reflect measuring air chamber 5.
In another possible implementation of this utility model, curved baffle 8 is provided with reflecting piece 10.
Wherein, being provided with reflecting piece 10 on curved baffle 8, infrared light is in curved baffle 8 and the sidewall shape of measurement air chamber 5
Carrying out multiple reflections in the passage become, during reflection, infrared light reaches the position of reflecting piece 10, and reflecting piece 10 can
Infrared light reflection reflection come is to the center of measurement air chamber 5, so that measure infrared detector 6 energy at the center of air chamber 5
Enough detect the decay of infrared light.
In the implementation that this utility model is alternatively possible, that measures air chamber 5 is provided centrally with optical filter 11；Filter
Sheet 11 is located at the top of infrared detector 6.
Wherein, optical filter 11 is used for filtering impurity light so that be irradiated to the light on infrared detector 6 through optical filter 11
Line is mainly infrared light, it is to avoid interferes the data of detection, affects Detection results.
In the implementation that this utility model is alternatively possible, measuring circuit 2 include modulate circuit 12, processor 13,
Output circuit 14；Infrared detector 6, modulate circuit 12, processor 13, output circuit 14 are sequentially connected with.
Wherein, after infrared detector 6 detects the energy of infrared light, analogue signal detection obtained passes to conditioning
Circuit 12, analogue signal is converted into digital signal by modulate circuit 12, and the digital signal after modulate circuit 12 will convert again sends
To processor 13, processor 13 is processed by data, obtains the concentration data of carbon monoxide, is being passed to by output circuit 14
Display circuit 3.
In the implementation that this utility model is alternatively possible, display circuit 3 includes LED display 15 and acousto-optic report
Alert device 16；LED display 15, sound and light alarm device 16 are connected with output circuit 14 respectively.
Wherein, display circuit 3 receives the concentration data of the carbon monoxide that output circuit 14 transmission comes, and recycling LED shows
Screen 15 demonstrates the concentration data of carbon monoxide, and user also need to preset this Infrared Carbon Monoxide in processor 13
Safe concentration scope needed for working sensor environment, when the concentration of carbon monoxide is beyond safe concentration scope, processor
13 control sound and light alarm device 16 by output circuit 14 sends alarm, reminds user by light and the sound, in order in time
Take suitable safety measure.
In the implementation that this utility model is alternatively possible, Infrared Carbon Monoxide sensor also includes: power supply part
17；Power supply part 17 includes rechargeable battery 18 and power line 19；Rechargeable battery 18 respectively with measuring circuit 2, display electricity
Road 3, infrared light supply 4, infrared detector 6, temperature compensation means 7 connect；Power line 19 respectively with measuring circuit 2, display circuit
3, infrared light supply 4, infrared detector 6, temperature compensation means 7 connect.
Wherein, the power supply part 17 of this Infrared Carbon Monoxide sensor uses rechargeable battery 18 and power line 19 two kinds
Parts collectively constitute, and user can use suitable power supply mode according to actual working environment；Rechargeable battery 18 has
Convenience, will not be retrained by surrounding circuit, and power line 19 is powered, and can ensure that power supply is stable.
In the implementation that this utility model is alternatively possible, processor 13 is 16/32 micro-place based on ARM kernel
Reason device；The signal input part of processor 13 connects modulate circuit 12, and the signal output part of processor 13 connects output circuit 14.
Wherein, processor 13 is this Infrared Carbon Monoxide sensor signal, the transmission of data, process and provide hardware to prop up
Hold, be used for ensureing the sensor normal operation of this Infrared Carbon Monoxide.
In the implementation that this utility model is alternatively possible, sound and light alarm device 16 includes buzzer and light-emitting diodes
Pipe.
Wherein, buzzer and light emitting diode possess the advantage that volume is little, can the most too much take this infrared oxidation
Sound and light alarm is jointly completed in the case of carbon sensor inner space.
Last it is noted that above example is only in order to illustrate the technical solution of the utility model, it is not intended to limit；
Although this utility model being described in detail with reference to previous embodiment, it will be understood by those within the art that:
Technical scheme described in previous embodiment still can be modified by it, or to the most some or all of technical characteristic
Carry out equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from this utility model embodiment
The scope of technical scheme.
Claims (9)
1. an Infrared Carbon Monoxide sensor, it is characterised in that including: optics (1), measuring circuit (2), display circuit
(3)；
Described optics (1), measuring circuit (2), display circuit (3) are sequentially connected with；
Described optics (1) includes infrared light supply (4), measures air chamber (5), infrared detector (6)；
Described infrared light supply (4) is for launching the wave-length coverage Infrared in 4.5～4.7 μm；
It is internal that described infrared light supply (4), described infrared detector (6) are arranged at described measurement air chamber (5)；
Described infrared detector (6) is arranged on the center of described measurement air chamber (5)；
The inwall of described measurement air chamber (5) is evenly arranged with multiple temperature compensation means (7).
2. Infrared Carbon Monoxide sensor as claimed in claim 1, it is characterised in that: the sidewall of described measurement air chamber (5) is
Circle, described measurement air chamber (5) is internally provided with curved baffle (8) and connecting plate (9)；
Multiple described temperature compensation means (7) are uniformly arranged on the inwall of described curved baffle (8)；
Described infrared light supply (4) is arranged on described connecting plate (9).
3. Infrared Carbon Monoxide sensor as claimed in claim 2, it is characterised in that: described curved baffle is provided with on (8)
Reflecting piece (10).
4. Infrared Carbon Monoxide sensor as claimed in claim 1, it is characterised in that: the center of described measurement air chamber (5) sets
It is equipped with optical filter (11)；
Described optical filter (11) is located at the top of described infrared detector (6).
5. Infrared Carbon Monoxide sensor as claimed in claim 1, it is characterised in that: described measuring circuit (2) includes conditioning
Circuit (12), processor (13), output circuit (14)；
Described infrared detector (6), described modulate circuit (12), described processor (13), described output circuit (14) connect successively
Connect.
6. Infrared Carbon Monoxide sensor as claimed in claim 5, it is characterised in that: described display circuit (3) includes that LED shows
Display screen (15) and sound and light alarm device (16)；
Described LED display (15), described sound and light alarm device (16) are connected with described output circuit (14) respectively.
7. Infrared Carbon Monoxide sensor as claimed in claim 2, it is characterised in that also include: power supply part (17)；
Described power supply part (17) includes rechargeable battery (18) and power line (19)；
Described rechargeable battery (18) respectively with described measuring circuit (2), described display circuit (3), described infrared light supply (4),
Described infrared detector (6), described temperature compensation means (7) connect；
Described power line (19) respectively with described measuring circuit (2), described display circuit (3), described infrared light supply (4), described
Infrared detector (6), described temperature compensation means (7) connect.
8. Infrared Carbon Monoxide sensor as claimed in claim 5, it is characterised in that: described processor (13) is based on ARM
16/32 bit microprocessor of kernel；
The signal input part of described processor (13) connects described modulate circuit (12), the signal output part of described processor (13)
Connect described output circuit (14).
9. Infrared Carbon Monoxide sensor as claimed in claim 6, it is characterised in that: described sound and light alarm device (16) includes
Buzzer and light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620650104.1U CN205749272U (en) | 2016-06-24 | 2016-06-24 | Infrared carbon monoxide sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620650104.1U CN205749272U (en) | 2016-06-24 | 2016-06-24 | Infrared carbon monoxide sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205749272U true CN205749272U (en) | 2016-11-30 |
Family
ID=57382896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620650104.1U Expired - Fee Related CN205749272U (en) | 2016-06-24 | 2016-06-24 | Infrared carbon monoxide sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205749272U (en) |
-
2016
- 2016-06-24 CN CN201620650104.1U patent/CN205749272U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Infrared carbon monoxide sensor device Effective date of registration: 20200319 Granted publication date: 20161130 Pledgee: Qilu bank Limited by Share Ltd. Ji'nan Changqing branch Pledgor: JINAN HUOSHAO SAFETY TECHNOLOGY Co.,Ltd. Registration number: Y2020980000846 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20221230 Granted publication date: 20161130 Pledgee: Qilu bank Limited by Share Ltd. Ji'nan Changqing branch Pledgor: JINAN HUOSHAO SAFETY TECHNOLOGY CO.,LTD. Registration number: Y2020980000846 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |