CN109211913A - The method of the on-line proving of laser methane detection device and on-line performance diagnosis - Google Patents
The method of the on-line proving of laser methane detection device and on-line performance diagnosis Download PDFInfo
- Publication number
- CN109211913A CN109211913A CN201810994830.9A CN201810994830A CN109211913A CN 109211913 A CN109211913 A CN 109211913A CN 201810994830 A CN201810994830 A CN 201810994830A CN 109211913 A CN109211913 A CN 109211913A
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- Prior art keywords
- concentration
- detection device
- methane detection
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- laser methane
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Classifications
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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
- G01N21/274—Calibration, base line adjustment, drift correction
-
- 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
- G01N21/84—Systems specially adapted for particular applications
- G01N21/85—Investigating moving fluids or granular solids
-
- 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
- G01N21/84—Systems specially adapted for particular applications
- G01N21/85—Investigating moving fluids or granular solids
- G01N2021/8578—Gaseous flow
-
- 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
- G01N2201/12—Circuits of general importance; Signal processing
- G01N2201/127—Calibration; base line adjustment; drift compensation
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- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Pathology (AREA)
- Immunology (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Theoretical Computer Science (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a kind of methods that on-line proving for tripod head type laser methane detection device and on-line performance diagnose, comprising the following steps: 1) provides a sealed gas chamber for having glass window, gas chamber is provided with the methane gas of normal concentration；2) PC control software is provided；3) a tripod head type laser methane detection device is provided, tripod head type laser methane detection device is set according to upper computer software, and sealed gas chamber described in pulsed exposure measures its concentration value；4) concentration that step 3) is measured is compared with sample gas normal concentration, if the error of measurement concentration and sample gas concentration within the set range, is judged as and meets the requirements；If the error for measuring concentration and sample gas concentration exceeds setting range, it is judged as abnormal.The present invention realizes the on-line performance diagnosis and calibration of equipment, it is ensured that the equipment moment is in effective working condition, saves the human and material resources for being largely used to equipment management, the use especially suitable for few people's yard and unmanned yard.
Description
Technical field
The present invention relates to a kind of methods of on-line automatic diagnosis, calibration for tripod head type laser gas detection device.
Background technique
Tripod head type laser gas detection device can be because of the reasons such as product design, quality problems, natural aging, external disturbance
Lead to product testing disabler or measured value inaccuracy problem, will lead to the false alarm of use site application or fails to report police, and
Current common solution is that live periodic calibrating or detection are carried out by the way of artificial, wastes a large amount of human and material resources,
The mode manually demarcated simultaneously can only generally demarcate once half a year or 1 year, can not achieve on-line proving.
Therefore those skilled in the art are dedicated to developing a kind of equipment on-line automatic test error diagnosis, on-line proving
Method.
Summary of the invention
In view of the above drawbacks of the prior art, the technical problem to be solved by the present invention is to how realize that equipment on-line is surveyed
Try error diagnostics and automatic Calibration.
To achieve the above object, the present invention provides a kind of on-line provings of laser methane detection device and on-line performance to examine
Disconnected method, comprising the following steps:
1) sealed gas chamber for having glass window is provided, gas chamber is provided with the methane gas of normal concentration；
2) PC control software is provided, upper computer software runs tripod head type laser methane detection device with holder
TRAJECTORY CONTROL and operation control action；
3) a tripod head type laser methane detection device is provided, tripod head type laser methane detection device is set according to upper computer software
Fixed, sealed gas chamber described in pulsed exposure, the detection laser that laser methane detection device issues is by transparent glass window, by mark
The methane gas of quasi- concentration measures its concentration value；
4) concentration that step 3) is measured is compared with sample gas normal concentration, if the error of measurement concentration and sample gas concentration
Within the set range, then it is judged as and meets the requirements, equipment continues to work normally；If measuring the error of concentration and sample gas concentration
Beyond setting range, then it is judged as abnormal, and start automatic Calibration or warning note, administrative staff is prompted to manually boot automatically
Calibrating function.
Preferably, the sealed gas chamber is installed on the erecting bed of tripod head type laser methane detection device.Preferably, upper
Machine software-controllable control equipment carries out automatic on-line concentration calibration or equipment laser emitting power diagnoses automatically, optical maser wavelength is drifted about certainly
Dynamic diagnosis and adjustment.
The beneficial effects of the present invention are: the present invention realizes the on-line performance diagnosis and calibration of equipment, it is ensured that at the equipment moment
In effective working condition, the human and material resources for being largely used to equipment management are saved, especially suitable for few people's yard and unmanned yard
It uses.The diagnosis of test error on-line performance, the calibration of tripod head type laser methane detection device can be not only realized using this method, and
And it can realize the laser light source transmission power diagnosis of tripod head type laser methane detection device, laser source wavelength drift diagnosis and tune
It is whole.
Detailed description of the invention
Fig. 1 is the principle of the present invention schematic diagram.
Fig. 2 is the structural schematic diagram of involved gas chamber in the embodiment of the invention.
Fig. 3 is the top view of Fig. 2.
Fig. 4 is the B-B schematic cross-sectional view of Fig. 2.
Fig. 5 is the control flow chart of upper computer software in the embodiment of the invention.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples:
As shown in Figure 1 and Figure 5, the method for a kind of on-line proving of laser methane detection device and on-line performance diagnosis, packet
Include following steps:
1) sealed gas chamber for having glass window is provided, gas chamber is provided with the methane gas of normal concentration；
2) PC control software is provided, upper computer software runs tripod head type laser methane detection device with holder
TRAJECTORY CONTROL and operation control action；
3) a tripod head type laser methane detection device 100 is provided, tripod head type laser methane detection device is soft according to host computer
Part setting, tripod head type laser methane detection device 100 can gas concentration around telemetering measurand 200, and pulsed exposure institute
It states sealed gas chamber 300 (may be set to once a day or a couple of days is primary), the detection laser that laser methane detection device issues passes through
Transparent glass window measures its concentration value by the methane gas of normal concentration；
4) concentration that step 3) is measured is compared with sample gas normal concentration, if the error of measurement concentration and sample gas concentration
Within the set range, then it is judged as P (meeting the requirements, pass through), equipment continues to work normally；If measuring concentration and sample gas being dense
The error of degree exceeds setting range, then is judged as N (abnormal, not pass through), and start automatic Calibration or warning note, prompts pipe
Reason personnel manually boot automatic Calibration function.
The sealed gas chamber is installed on the erecting bed of tripod head type laser methane detection device.
Upper computer software controllable device carries out automatic on-line concentration calibration or equipment laser emitting power diagnoses automatically, swashs
The automatic diagnosis of optical wavelength drift and adjustment.
The structure of sealed gas chamber is as shown in Figures 2 to 4, and calibrating gas is filled in gas chamber 1, and gas chamber 1 includes 2 He of air inlet
Gas outlet 3, air inlet 2 and gas outlet 3 are provided with sealing-plug.One end face of gas chamber 1 is fixed with transparent glass 5 by pressure ring 4,
Sealing ring or sealant 6 are provided between transparent glass 5 and gas chamber 1.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that those skilled in the art without
It needs creative work according to the present invention can conceive and makes many modifications and variations.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical solution, all should be within the scope of protection determined by the claims.
Claims (3)
1. the method for a kind of on-line proving of laser methane detection device and on-line performance diagnosis, it is characterized in that including following step
It is rapid:
1) sealed gas chamber for having glass window is provided, gas chamber is provided with the methane gas of normal concentration；
2) PC control software is provided, upper computer software has holder running track to tripod head type laser methane detection device
Control and operation control action；
3) a tripod head type laser methane detection device is provided, tripod head type laser methane detection device is set according to upper computer software,
Sealed gas chamber described in pulsed exposure, the detection laser that laser methane detection device issues is by transparent glass window, by standard
The methane gas of concentration measures its concentration value；
4) concentration that step 3) is measured is compared with sample gas normal concentration, if the error of measurement concentration and sample gas concentration is being set
Determine in range, be then judged as and meet the requirements, equipment continues to work normally；If the error of measurement concentration and sample gas concentration exceeds
Setting range is then judged as abnormal, and starts automatic Calibration or warning note, and administrative staff is prompted to manually boot automatic Calibration
Function.
2. the method for the on-line proving of laser methane detection device as described in claim 1 and on-line performance diagnosis, feature
Be: the sealed gas chamber is installed on the erecting bed of tripod head type laser methane detection device.
3. the method for the on-line proving of laser methane detection device as claimed in claim 1 or 2 and on-line performance diagnosis, special
Sign is: upper computer software controllable device carry out automatic on-line concentration calibration or equipment laser emitting power diagnose automatically, laser
Wave length shift is diagnosed and is adjusted automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810994830.9A CN109211913A (en) | 2018-08-29 | 2018-08-29 | The method of the on-line proving of laser methane detection device and on-line performance diagnosis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810994830.9A CN109211913A (en) | 2018-08-29 | 2018-08-29 | The method of the on-line proving of laser methane detection device and on-line performance diagnosis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109211913A true CN109211913A (en) | 2019-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810994830.9A Pending CN109211913A (en) | 2018-08-29 | 2018-08-29 | The method of the on-line proving of laser methane detection device and on-line performance diagnosis |
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| Country | Link |
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| CN (1) | CN109211913A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109883963A (en) * | 2019-03-07 | 2019-06-14 | 中国矿业大学 | A kind of calibrating installation of gas telemeter |
| CN111781310A (en) * | 2020-07-21 | 2020-10-16 | 清华大学合肥公共安全研究院 | Environment adaptability detection system for gas concentration monitoring equipment |
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|---|---|---|---|---|
| CN2469438Y (en) * | 2000-11-10 | 2002-01-02 | 中国科学院安徽光学精密机械研究所 | Testor used to measure total quatity of aromatic hydrocarbon gas in motor vehicle tail gas |
| CN103884678A (en) * | 2014-04-16 | 2014-06-25 | 北京航星网讯技术股份有限公司 | Automatic cruise type laser methane gas concentration monitoring device |
| CN203758911U (en) * | 2013-12-18 | 2014-08-06 | 河南省日立信股份有限公司 | Laser gas analyzer with wide dynamic range |
| CN206974973U (en) * | 2017-05-22 | 2018-02-06 | 北京竹青世纪科技有限公司 | A kind of methane monitors analyzer on-line |
-
2018
- 2018-08-29 CN CN201810994830.9A patent/CN109211913A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2469438Y (en) * | 2000-11-10 | 2002-01-02 | 中国科学院安徽光学精密机械研究所 | Testor used to measure total quatity of aromatic hydrocarbon gas in motor vehicle tail gas |
| CN203758911U (en) * | 2013-12-18 | 2014-08-06 | 河南省日立信股份有限公司 | Laser gas analyzer with wide dynamic range |
| CN103884678A (en) * | 2014-04-16 | 2014-06-25 | 北京航星网讯技术股份有限公司 | Automatic cruise type laser methane gas concentration monitoring device |
| CN206974973U (en) * | 2017-05-22 | 2018-02-06 | 北京竹青世纪科技有限公司 | A kind of methane monitors analyzer on-line |
Non-Patent Citations (1)
| Title |
|---|
| 国家安全生产监督管理总局培训中心: "《煤矿三项人员安全培训考核教材系列 操作资格培训考核教材 煤矿安全监测监控作业 第3版》", 30 September 2017 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109883963A (en) * | 2019-03-07 | 2019-06-14 | 中国矿业大学 | A kind of calibrating installation of gas telemeter |
| CN111781310A (en) * | 2020-07-21 | 2020-10-16 | 清华大学合肥公共安全研究院 | Environment adaptability detection system for gas concentration monitoring equipment |
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