CN109959614A - The gas-detecting device of more air chamber structures for multiple spot detection - Google Patents
The gas-detecting device of more air chamber structures for multiple spot detection Download PDFInfo
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- CN109959614A CN109959614A CN201810158870.XA CN201810158870A CN109959614A CN 109959614 A CN109959614 A CN 109959614A CN 201810158870 A CN201810158870 A CN 201810158870A CN 109959614 A CN109959614 A CN 109959614A
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- 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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/03—Cuvette constructions
- G01N21/031—Multipass arrangements
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- 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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/11—Filling or emptying of cuvettes
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- 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
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- 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
- G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
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- 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
- G01N21/59—Transmissivity
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Abstract
The present invention relates to the gas-detecting devices of the more air chamber structures detected for multiple spot, are detected using sample gas of the gas-detecting device with light source, gas chamber and detector to multiple positions.Thus, the present invention is provided to the gas-detecting devices of more air chamber structures of multiple spot detection, in the form of a light source, the gas chamber for passing through the samples gas such as calibrating gas or discharge gas and a detector are configured to a column on light path, gas chamber is made of more gas chambers of multiple gas chamber Side by side groupings, with parallel with the propagation path of light, gas inlet and gas discharge outlet are respectively formed in each gas chamber, so that the samples gas such as calibrating gas or discharge gas passes through the inside of multiple gas chambers respectively, so as to save price (expense), space, detection time etc..
Description
Technical field
The present invention relates to the gas-detecting devices of the more air chamber structures detected for multiple spot, in more detail, are related to following
The gas-detecting device of more air chamber structures for multiple spot detection: there is light source (light source), a gas chamber
In (gas cell) and the gas-detecting device of a detector (detector), above-mentioned air chamber structure is by separate the time difference
More gas chambers (multi-gas cell) structure that mode periodically passes through multiple gases is constituted, to separate the side of time difference
It, can be in a detector to separate the time difference after formula periodically makes from the light that a light source emits to plenum interior incidence
Mode periodically carries out calculation processing, so as to save price (expense), space, detection time etc..
Background technique
In general, the path for the light that previous gas-detecting device emits in a gas chamber and a detector from a light source
On form, as illustrated in fig. 1, above-mentioned gas detection device includes: light source 11, for 14 irradiation light of gas chamber；First optics
Lens 12 and optical light filter 13, for the anaclasis and filtering to being irradiated from light source 11, so that the light of specific wavelength passes through gas
The inside of room 14；Gas chamber 14, be configured at from light source 11 emit light propagation path on, be respectively arranged with gas inlet a and
Gas discharge outlet b, so that gas passes through the inside of gas chamber,；Second optical lens 15 is gathered in by making the light across gas chamber 14
It is detected at one；And detector 16.
In this previous gas-detecting device, make pernicious gas continuously across a gas chamber 14, and uses a light
Source 11 and a detector 16 (detector or spectrometer) come to concentration of pernicious gas etc. by gas chamber 14 into
Row detection.
It is well known that the burning gases being discharged when being burnt are arranged in power generation use or industry boiler etc.
Therefore a variety of harmful environmental pollutants out provide normal concentration according to type to be discharged by law hereinafter, in order to true
The reliability for protecting discharge quantity measuring method is executed by specified atmosphere pollution process test method.
As described above, in order to reduce through the discharge rate of law environmental pollutants come as defined in or be carried out to combustion state
It diagnoses and evaluates, in combustion, also carry out multiple positions at any time in pipeline and discharge gas is sampled and analyzed
Operation, to achieve the goals above, previous, by several personnel for a long time to manually perform discharge gas detection operation, because
This, needs more detection manpower, and since detection manpower is trapped in for a long time around pernicious gas discharge source, it can
Can have an adverse effect to health, thus need the plan of the reply to this.
In connection with this, KR published patent the 10-2005-0099808th (on October 17th, 2005 is open, hereinafter,
Referred to as " patent document 1 ") in disclose following Multi-point combustion gas automatic sampling detection device: power generation with or industry pot
In furnace etc., it is collected according to a variety of burning gases that atmosphere pollution process test method is discharged when multiple positions are to burning
And it analyzes.
According to patent document 1, power generation use or industry boiler etc. in, can be from being respectively arranged at burning gases be discharged
Multiple probes of multiple burning points in pipeline are sampled burning gases automatically and are analyzed in a manner of nobody, so as in institute
The multiple positions needed simply sample burning gases, and many work hard and in hazardous gas area is eliminated by unattended
The resident necessity of operating manpower, so as to exclude that manpower and advance preventing work can be reduced to the hidden danger of the health of operating manpower
Hurt accident.
But in previous detection device as described above, multiple burning points in gas pipeline are directly set respectively
Multiple detection devices are set to sample to sample gas, therefore, it is necessary to the gas detection of quantity identical as the demand number of test point dresses
It sets, thus in the presence of the hidden danger that may waste installation price (expense), installation space, set-up time etc..
Also, as described above, the gas-detecting device with a gas chamber selectively need to make gas to sampling by valve
It is flowed between pipe and gas chamber, at this point, existing during to exclude sucked gas completely and delaying asking for many times
Topic.
On the other hand, recently, there is the degree of distribution for having detected the gas in solution space by pernicious gas or grasp base
In demands such as the concentration of gas that the inside of pipeline or pernicious gas are flowed, prepare the design of factory, the position of equipment as a result,
Deng furthermore, it is desirable to three-dimensional (3D) model etc. of big data, gas with various concentration.
Existing technical literature
Patent document
Patent document 0001: KR published patent 10-2005-0099808A (on October 17th, 2005 is open)
Summary of the invention
Therefore, the present invention proposes to meet above-mentioned requirements, technical problem to be solved by the present invention lies in, provide as
Under for multiple spot detection more air chamber structures gas-detecting device: in the gas detection with light source, gas chamber and detector
In device, air chamber structure is made of the more air chamber structures in a manner of separating the time difference passing through periodically multiple gases,
It, can be one after periodically being made in a manner of separating the time difference from the light that a light source emits to the incidence of the inside of each gas chamber
A detector difference in a manner of separating the time periodically carries out calculation processing, without being inhaled into gas chamber for being discharged
Therefore the evacuation time of the sample gas in portion can save price (expense), space, detection time etc..
One embodiment of the present invention for achieving the above object is the gas of the more air chamber structures detected for multiple spot
Detection device, in a light source, the gas chamber for making calibrating gas or the samples gas such as gas process being discharged and a detector in light path
On be configured to the forms of a column, in the gas-detecting device of above-mentioned more air chamber structures for multiple spot detection, gas chamber is by multiple
More gas chambers of gas chamber Side by side groupings are constituted, and with parallel with the propagation path of light, are respectively formed with gas inlet in each gas chamber
And gas discharge outlet, so that the samples gas such as calibrating gas or discharge gas passes through the inside of multiple gas chambers respectively.
One embodiment of aforementioned present invention can be realized by a following embodiment, that is, above-mentioned to examine for multiple spot
The gas-detecting device for the more air chamber structures surveyed further includes light path selector, has multiple shutters, above-mentioned light path selection
Portion is set on the light path in the front of more gas chambers, so that the propagation path of light was connected by one in multiple gas chambers
Mode selects light path.
Another embodiment of aforementioned present invention can be realized by following another embodiment, that is, above-mentioned for more
The gas-detecting device of more air chamber structures of point detection further includes light path control unit, for the light in light path selector
The selection work of propagation path is controlled.
In the above present invention, light path control unit is in a manner of separating the time difference periodically in light path selector
The selection work of propagation path of light controlled.
It is a feature of the present invention that in the above present invention, more gas chambers are connected with each sample probe, to make each
The sample gas of position is continuously via the gas inlet and gas discharge outlet of gas chamber, by the opening and closing work of light path selector to rank
Calculated by the concentration of the sample gas of each gas chamber to section property.
According to the present invention, more gas chambers for being composed of multiple gas chambers are set between light source and detector at one, with
The mode for separating the time difference periodically makes after from the light that a light source emits to more gas, indoor each gas chamber is incident, can be
One detector periodically carries out calculation processing in a manner of separating the time difference, therefore, with respectively use different gas chambers,
Without additional evacuation time, to can provide the advantage for saving price (expense), space, detection time etc..
Detailed description of the invention
Fig. 1 is to illustrate the schematic diagram of the gas-detecting device of previous structure.
Fig. 2 is to illustrate the schematic diagram of the gas-detecting device of more air chamber structures for multiple spot detection of the invention.
Fig. 3 be in order to illustrate in the gas-detecting device of more air chamber structures for multiple spot detection of the invention to each
Gas chamber injection sample gas flowing and illustrate with reference to figure.
Specific embodiment
Hereinafter, referring to attached drawing to the gas detection for the more air chamber structures of the preferred embodiment for the present invention detected for multiple spot
The structure of device, work and thus caused by function and effect be described in detail.
Term used in this specification and the claimed range of invention or word should not be limited on routine or dictionary
Meaning explain, but should based on inventor can in order to optimal method come illustrate its own invention and to term
The principle that concept is suitably defined is explained with meeting the meaning and concept of technical idea of the invention.Therefore, in this explanation
Documented embodiment and the structure being shown in the accompanying drawings are only presently most preferred embodiment of the invention in book, it will thus be appreciated that
At the time point of the application, a variety of equivalent technical solutions and variation that can replace them may be present.
Fig. 2 is to illustrate the letter of the specific structure of gas-detecting device of more air chamber structures for multiple spot detection of the invention
Figure, Fig. 3 be in order to illustrate in the gas-detecting device of more air chamber structures for multiple spot detection of the invention to each gas chamber
The flowing of the sample gas of injection and illustrate with reference to figure, as shown in Fig. 2, gas-detecting device of the invention may include by multiple gas chambers
More gas chambers 20 that 20a-20c is composed may also include light path selector 30 or light path selector 30 and light path control
Portion 40 and signal processing part 50 are realized respectively with different embodiments.The gas detection of this each embodiment of the present invention fills
It sets and is applicable to a light source, for making calibrating gas or the gas chamber and a detector light path of the samples gas such as gas process being discharged
On form gas-detecting device.
Gas-detecting device present invention as described above includes: light source 11 as basic structure element, for emitting
Light；First optical lens 12, separates and is configured on the light path at the rear of light source 11, is emitted by being reflected to light parallel
Light；Optical light filter 13 is separated and is configured on the light path at the rear of the first optical lens 12, for being filtered to directional light
And it is incident to more gas chambers 20；Second optical lens 15 is separated and is configured on the light path at the rear of more gas chambers 20, by process
The directional light of more gas chambers 20 is reflected to gather above-mentioned light at one；And detector 16, it is configured at the second optical lens
The end of the light path at 15 rear is come by detecting a position to the light assembled by the second optical lens 15
Gas concentration is calculated.Above-mentioned optical light filter 13 can be the structural element omitted according to demand, still, at below
In invention, to be illustrated for including the structure of optical light filter 13.
More gas chambers 20 are formed by multiple gas chamber 20a-20c with the mode Side by side groupings parallel with light path, it is preferable that by having
There are round or conformation of rules 3 or 4 gas chambers are formed side by side in the mode parallel with light path.It is below detailed description and
In attached drawing, it is illustrated in case where being composed of 3 gas chamber 20a-20c.
Also, gas inlet a and gas row are respectively arranged in each gas chamber 20a-20c for constituting this more gas chambers 20
B is exported, as shown in figure 3, can realize by such as flowering structure, that is, the gas inlet a of each gas chamber 20a-20c passes through respectively
Pipe 1 is connected with each sample probe 2a-2c, so as to collect sample gas respectively in multiple positions, by each sample probe 2a-2c
The sample gas of collection can be injected by each optical filter 3a-3c to the gas inlet a of each gas chamber 20a-20c, in each gas chamber
The gas discharge outlet b of 20a-20c is connected separately with the pump 4a-4c for forcing the gas of discharge plenum interior, to make standard
The samples gas such as gas or discharge gas passes through inside and the discharge of gas chamber respectively, so as to make the sample (inspection flowed into each gas chamber
Survey) gas is always continuously across each gas chamber successively passes through light, to only detect multiple positions by changing the path of light
Gas concentration.If each gas chamber can be come passing through light successively using this more gas chambers
Successively the sample gas sucked from multiple positions (sample probe (samplingprobe) 1, probe 2, probe 3) is detected, by
This, can continuously suck sample gas and make above-mentioned sample gas through excessive gas chamber.
Light path selector 30 is set on the light path in the front of more gas chambers 20, so that the propagation path of light is by more
One in a gas chamber 20a-20c selects light path come the mode connected.For this purpose, light path selector 30 can be by circular plate shaped body
31 are constituted, and above-mentioned circular plate shaped body 31 is formed with size corresponding with the internal diameter of each gas chamber 20a-20c of more gas chambers 20
Multiple through-hole 31a have shutter 31b or light path selector for distinguishing open or closed above-mentioned each through-hole 31a
30 can be also made of circular plate type rotary body 32, and above-mentioned circular plate type rotary body 32 is formed with each gas chamber 20a- with more gas chambers 20
The single through-hole 32a of the corresponding size of the internal diameter of 20c, can be rotated on the basis of central point 32b.
In the case where being made of the circular plate shaped body 31 with multiple shutter 31b, it is preferable that with respectively with more gas chambers
The mode that 20 each gas chamber 20a-20c is corresponded is formed with multiple shutter 31b in light path selector 30, so as to
By the driving (opening/closing) of each shutter 31b come respectively selectively open or closed one into each gas chamber 20a-20c
The propagation path of the directional light of a incidence, it is excellent in the case where being made of the circular plate type rotary body 32 for being formed with single through-hole 32a
Selection of land controls circular plate type in a manner of making one in multiple gas chamber 20a-20c of single through-hole 32a and more gas chambers 20 corresponding
The rotation position of rotary body 32 controls the position of single through-hole 32a.
Light path control unit 40 is in a manner of separating the time difference periodically to each shutter of light path selector 30
31b carries out open close control or controls the position of single through-hole 32a, to successively be controlled in a manner of separating the time difference
The selection work of the propagation path of light, so that light is merely through one in more gas chambers side by side.For example, being selected in above-mentioned light path
In the case that portion 30 is made of the circular plate shaped body 31 with multiple shutter 31b, it is each that light path control unit 40 plays control
The effect of the opening and closing of shutter 31b is made of in light path selector 30 the circular plate type rotary body 32 with single through-hole 32a
In the case of, light path control unit 40 plays the role of controlling the position of single through-hole 32a.
Also, this light path control unit 40 passes through the opening/closing work of each shutter 31b with light path selector 30
Or the position control work of single through-hole 32a combines to control signal processing part 50, to play the letter for distinguishing detector 16
Number for which gas chamber, which position signal.Light path control unit 40 specifies detector 16 using signal processing part 50 as a result,
The selection (that is, gas chamber that light is passed through) of light detecting signal and light path, and periodically to execute the concentration calculation of each room
The mode of work is controlled.
In order to execute above-mentioned work, light path control unit 40 periodically selects light path in a manner of separating the time difference
Portion 30 selects the work of the propagation path of light to be controlled based on each shutter 31b or single through-hole 32a, and with this
The mode that kind light path selector 30 links controls signal processing part 50 to distinguish the signal inputted from detector 16, so as to press
According to the time difference corresponding with the rotation position of opening and closing or single through-hole 32a of each shutter 31b of light path selector 30
Successively execute one light detection being directed in each gas chamber 20a-20c and concentration calculation work handled by detector 16.
Signal processing part 50 is by obtaining to work and being selected by light path selector 30 with being controlled by light path control unit 40
The light detecting signal of the related detector 16 of the light path selected, Lai Zhihang concentration calculation.As a result, signal processing part 50 according to quilt
The specified light path of light path control unit 40 (that is, gas chamber that light passes through) consistent time interval is examined to obtain the light of detector 16
Signal is surveyed, and periodically executes the work for calculating the concentration of each room.
Hereinafter, being examined to the gas for the more air chamber structures for multiple spot detection of the invention being made of mode as described above
It surveys the work of device and thus caused function and effect is described as follows.
Firstly, light is from the first optics separated on the light path for being configured at 11 rear of light source if emitting light from light source 11
It is refracted in lens 12 and is emitted with directional light, this directional light is spaced is configured at the optical path at 12 rear of the first optical lens
The light path selector 30 being set on the light path in more 20 fronts of gas chamber is reached after the filtering of optical light filter 13 on diameter.
On the other hand, light path control unit 40 is to separate time difference (for example, can be for by program scheduled time difference)
Mode periodically control light path selector 30 each shutter 31b opening and closing work, to be selected according to light path
The rotation position of the opening and closing of each shutter 31b in portion 30 or single through-hole 32a select the propagation path of light, so that light can lead to
It one in each gas chamber 20a-20c of excessive gas chamber 20, is specified and this light path selector 30 to signal processing part 50
The light detecting signal of the corresponding detector 16 of control work of the rotation position of the opening and closing of shutter 31b or single through-hole 32a,
To make signal processing part 50 obtain according to the consistent time interval of light path successively specified by light path control unit 40
The light detecting signal of detector 16, and execute the work for calculating the concentration of each room.
Therefore, reach light path selector 30 directional light with respectively with each gas chamber 20a-20c mono- of more gas chambers 20
To the incidence opened by light path control unit 40, Huo Zhexiang in multiple shutter 31b that one corresponding mode is arranged
Pass through an incidence of the single through-hole 32a into multiple gas chamber 20a-20c of more gas chambers 20.That is, according to light path selector 30
Each shutter 31b open or closed work or single through-hole 32a rotation position come determine reach light path selection
The propagation path of the directional light in portion 30, and one in multiple gas chamber 20a-20c through excessive gas chamber 20, and configured from separating
It is refracted in the second optical lens 15 on the light path at more 20 rears of gas chamber to be gathered in the rear of the second optical lens 15
A position, be configured at the detector 16 of the end of the light path at 15 rear of the second optical lens to gathering the second optical lens
The light at 15 rear of mirror is detected.
Signal processing part 50 refers to according to the consistent time interval of light path successively specified by light path control unit 40
The light detecting signal of detector 16 and acquisition are determined, to make signal processing part 50 distinguish respectively and detect the signal of detector 16
Which gas chamber, which position signal, and calculate gas concentration.
Gas-detecting device of the invention makes each gas chamber successively in the way of separating the time difference by more gas chambers as a result,
Light passes through, and above-mentioned more gas chambers are by with multiple gas chamber structures of the mode parallel with the propagation path of light circle side by side or conformation of rules
At can be by a detector successively in each sample gas continuously sucked from multiple positions (sample probe 1, probe 2, probe 3)
It is detected, therefore, price (expense), space, detection time etc. can be saved.
Though as described above, by the embodiment and attached drawing that limit, the present invention is described, the present invention not office
It is limited to above-described embodiment, as long as those skilled in the art, so that it may which a variety of repair is carried out by above-mentioned record
Change and deforms.Therefore, should range only be claimed to understand by documented invention in thought of the invention, be equal with the present invention
Or equivalent variations belong to thought category of the invention.
Claims (6)
1. it is a kind of for multiple spot detection more air chamber structures gas-detecting device, in a light source, sample gas pass through gas chamber and
One detector is configured to the form of a column on light path, which is characterized in that
Above-mentioned gas chamber is made of multiple gas chambers with more gas chambers of the mode Side by side groupings parallel with light path,
It is respectively formed with gas inlet and gas discharge outlet in each above-mentioned gas chamber, so that sample gas passes through above-mentioned multiple gas respectively
The inside of room.
2. the gas-detecting device of more air chamber structures according to claim 1 for multiple spot detection, which is characterized in that also
Including light path selector, above-mentioned light path selector is set on the light path in the front of above-mentioned more gas chambers, so that light
Propagation path selects light path by way of connecting one in above-mentioned multiple gas chambers.
3. the gas-detecting device of more air chamber structures according to claim 2 for multiple spot detection, which is characterized in that
Above-mentioned light path selector is made of one of circular plate shaped body and circular plate type rotary body,
Above-mentioned circular plate shaped body is formed with multiple through-holes of size corresponding with the internal diameter of each gas chamber of above-mentioned more gas chambers, tool
There is the shutter for distinguishing open or closed above-mentioned each through-hole,
Above-mentioned circular plate type rotary body is formed with the single through-hole of size corresponding with the internal diameter of each gas chamber of above-mentioned more gas chambers,
It can be rotated on the basis of central point.
4. the gas-detecting device of more air chamber structures according to claim 3 for multiple spot detection, which is characterized in that
Above-mentioned circular plate shaped body is formed with the above-mentioned through-hole of the quantity corresponded respectively with each gas chamber of above-mentioned more gas chambers and opens
Device is closed, is entered by the driving of each above-mentioned shutter come respectively selectively open or closed one into each above-mentioned gas chamber
The propagation path for the directional light penetrated.
5. the gas-detecting device of more air chamber structures according to claim 3 for multiple spot detection, which is characterized in that also
Include:
Light path control unit, the rotation for the opening and closing or single through-hole based on each shutter to above-mentioned light path selector
Position selects the work of the propagation path of light to be controlled, and selects to signal processing part is specified with by above-mentioned light path selector
The corresponding detector of light path light detecting signal；And
Signal processing part, by obtaining and being controlled and had by the light path that light path selector selects by above-mentioned light path control unit
The light detecting signal of the above-mentioned detector closed, Lai Zhihang concentration calculation.
6. the gas-detecting device of more air chamber structures according to claim 5 for multiple spot detection, which is characterized in that
Above-mentioned light path control unit proceeds as follows control:
It controls (a), periodically to above-mentioned light path selector based on each shutter of control in a manner of separating the time difference
Opening and closing or the rotation position of single through-hole select the work of the propagation path of light to be controlled；
It controls (b), Xiang Shangshu signal processing part is specified corresponding above-mentioned with the light path selection by above-mentioned light path selector
The light detecting signal of detector, to make above-mentioned signal processing part according to the opening and closing of each shutter to above-mentioned light path selector
Or the time interval that the rotation position of single through-hole is controlled successively detects the gas concentration of each position.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020170171888A KR101834232B1 (en) | 2017-12-14 | 2017-12-14 | Gas measuring apparatus with multi-gas cell structure for measuring multi-point |
| KR10-2017-0171888 | 2017-12-14 |
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| Publication Number | Publication Date |
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| CN109959614A true CN109959614A (en) | 2019-07-02 |
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| CN201810158870.XA Withdrawn CN109959614A (en) | 2017-12-14 | 2018-02-26 | The gas-detecting device of more air chamber structures for multiple spot detection |
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| KR (1) | KR101834232B1 (en) |
| CN (1) | CN109959614A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102009196B1 (en) | 2019-01-07 | 2019-08-09 | 동우옵트론 주식회사 | Multi-point gas analyzer using bundle optic fiber |
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2017
- 2017-12-14 KR KR1020170171888A patent/KR101834232B1/en active IP Right Grant
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2018
- 2018-02-26 CN CN201810158870.XA patent/CN109959614A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001004543A (en) * | 1999-06-25 | 2001-01-12 | Ishikawajima Harima Heavy Ind Co Ltd | Method and apparatus for measuring concentration distribution of combustion product |
| CN101477042A (en) * | 2009-01-09 | 2009-07-08 | 武汉电信器件有限公司 | Coal mine gas multi-point on-line detection apparatus based on spectral absorption |
| CN103424375A (en) * | 2013-09-02 | 2013-12-04 | 山东大学 | Multi-channel and multi-point-location gas detection system based on differential absorption technology |
| CN103954588A (en) * | 2014-05-15 | 2014-07-30 | 北京龙源欣盛科技有限公司 | Distributed TDLAS (Tunable Diode Laser Absorption Spectroscopy) gas detection system and method |
| CN104535529A (en) * | 2014-11-27 | 2015-04-22 | 北京航天易联科技发展有限公司 | Distributed gas sensing system and control method thereof |
| KR20170122873A (en) * | 2016-04-27 | 2017-11-07 | 경북대학교 산학협력단 | Device and method for measuring multi-gas by using non-dispersive infrared |
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| KR101834232B1 (en) | 2018-03-05 |
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