CN203929625U - The automatic calibration device of motor-vehicle tail-gas Remote Sensing Testing System - Google Patents
The automatic calibration device of motor-vehicle tail-gas Remote Sensing Testing System Download PDFInfo
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- CN203929625U CN203929625U CN201420116669.2U CN201420116669U CN203929625U CN 203929625 U CN203929625 U CN 203929625U CN 201420116669 U CN201420116669 U CN 201420116669U CN 203929625 U CN203929625 U CN 203929625U
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- Prior art keywords
- air chamber
- motor
- remote sensing
- infrared eye
- infrared
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- 238000012360 testing method Methods 0.000 title claims abstract description 15
- 238000001514 detection method Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 23
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 229910002091 carbon monoxide Inorganic materials 0.000 description 6
- 230000005855 radiation Effects 0.000 description 6
- 235000019504 cigarettes Nutrition 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 4
- 230000002354 daily effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000012550 audit Methods 0.000 description 2
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 2
- 229910001634 calcium fluoride Inorganic materials 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000005383 fluoride glass Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000001294 propane Substances 0.000 description 2
- 229910052594 sapphire Inorganic materials 0.000 description 2
- 239000010980 sapphire Substances 0.000 description 2
- -1 concentration 7%-11% Chemical compound 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Abstract
The utility model relates to a kind of automatic calibration device of Remote Sensing Testing System.By being placed on the front standard air chamber (3-1) of infrared light transducer[sensor (3-3), air chamber support (3-2), stepper motor (3-4) and control system (3-6) form.In standard air chamber (3-1), be filled with the mixed gas of prescribed concentration, be arranged on air chamber support (3-2), be positioned in the positive light path of infrared eye (3-3), from catoptron (1-5) or (2-5) light of reflection enter infrared eye (3-3) through standard air chamber (3-1), air chamber support (3-2), by a step motor control, can make the standard air chamber (3-1) of appointment be positioned accurately in the positive light path of infrared eye (3-3).Infrared light transducer[sensor (3-3) detects the light through air chamber, and control system is analyzed again, and all processes complete automatically by control system, has reached the object that system is demarcated and revised, and greatly facilitates the demarcation of remote sensing proving installation.
Description
Technical field:
The present invention relates to motor-vehicle tail-gas and detect, particularly a kind of daily automatic calibration device of split type or integrated motor-vehicle remote exhaust emission test macro.
Background technology:
In recent years along with the fast development of national economy, China's vehicle guaranteeding organic quantity phenomenal growth, motor-vehicle tail-gas is on the rise to the negative effect of atmospheric environment.Motor-vehicle tail-gas remote sensing proving installation more and more obtains the application of environmental monitoring department, has at present integral type and split type two kinds of modes.For the motor-vehicle tail-gas remote sensing proving installation of any mode, daily demarcation is all the necessary workflow that instrument guarantees accuracy.
Well-known Remote Sensing Testing System can be used for the detecting and identifying of motor-vehicle tail-gas, and its principle as depicted in figs. 1 and 2.
Figure 1 shows that existing integrated motor-vehicle remote exhaust emission proving installation.The exhaust smoke group (1-2) giving off from motor vehicle (1-1) offgas duct of travelling at road can think to remain unchanged at discharge precontamination substrate concentration.The detection light (1-4) that radiation source (1-3) is launched is reflected afterwards mirror (1-5) through cigarette group (1-2) and is reflected back radiation source (1-3), the reflected light (1-6) that radiation source (1-3) receives is because of the high density pollution thing absorption light intensity decreasing by cigarette group (1-2), according to Bernoulli equation and burning equation, the light intensity that detects light (1-4) and reflected light (1-6) by contrast can obtain the concentration of each pollutant in cigarette group (1-2).
Figure 2 shows that split type motor-vehicle tail-gas remote sensing proving installation, radiation source (2-3) and detecting device (2-7) are split-type structural, be arranged in certain runway top of multilane, the two ends in this track are placed in, the detection light (2-4) of radiation source (2-3) transmitting is infrared light and ultraviolet light, and detecting device (2-7) comprises infrared light transducer[sensor and ultraviolet light transducer; The reflected light (2-6) that detecting device (2-7) receives is because of the high density pollution thing absorption light intensity decreasing by cigarette group (2-2), according to Bernoulli equation and burning equation, the light intensity that detects light (2-4) and reflected light (2-6) by contrast can obtain the concentration of each pollutant in cigarette group (1-2).
Above two kinds of motor-vehicle tail-gas Remote Sensing Testing Systems, need to carry out the accuracy of daily demarcation to guarantee that instrument detects, common demarcation way is on the conduction route of light path (1-6 or 2-6), to spray standard twice combination gas to demarcate, the combination gas that sprays for the first time high concentration is calibrated, the combination gas that sprays for the second time low concentration is examined, and with this, determines the correction factor of system.Existing system need to have special messenger to operate every day, and for the proving installation of two kinds of modes, extremely inconvenient, especially to split type motor-vehicle tail-gas Remote Sensing Testing System, because proving installation location comparison is high, daily artificial demarcation has been difficult to.
Summary of the invention:
The automatic calibration device that the object of this invention is to provide a kind of motor-vehicle tail-gas Remote Sensing Testing System.
Technical solution of the present invention is at infrared light receiving end (1-3, 2-7) standard air chamber (3-1) is installed in casing, air chamber support (3-2), stepper motor (3-4) and control system (3-6) form, it is characterized in that at infrared light receiving end (1-3, 2-7) fixed head (3-5) is installed in casing case, be fixed with stepper motor (3-4) and infrared eye (3-3) thereon, one end at the air chamber support (3-2) of swing arm shape is fixed on the motor shaft of stepper motor (3-4), the other end is provided with three fixedly fixed vias of air chamber, at its through hole and be positioned on the axis A of the positive light path of infrared eye (3-3) standard air chamber (3-1) is installed, during detection, swing arm shape air chamber support (3-2) makes under the drive of stepper motor (3-4) to be arranged on that standard air chamber (3-1) on swing arm shape air chamber support (3-2) is positioned at infrared eye (3-3) carries out staking-out work above, during non-detection under the drive of control system (3-6) and stepper motor (3-4), make swing arm shape air chamber support (3-2) be positioned at off normal, unobstructed before infrared eye (3-3), do not affect its normal testing.
At said structure Plays air chamber (3-1), be a drum (4-2).Air chamber two ends are provided with sapphire or calcium fluoride glass (4-1), by packoff and air chamber main body (4-2) combination, to guarantee confined gas.In air chamber, (4-3) is filled with carbon monoxide (CO), concentration 7%-11%, carbon dioxide (CO
2), concentration 40%-60% and propane flammable gas, concentration 0.4%, all the other combination gass that are nitrogen, demarcate and audit is used for remote sensing proving installation.
The automatic calibration device of the described motor-vehicle tail-gas Remote Sensing Testing System of the utility model, the control of standard air chamber (3-1) and measurement are by computer controlled automatic, do not need personnel to operate, calibration mass and work efficiency have greatly been improved, reach the object that system is carried out automatic Calibration and correction, greatly facilitated the staking-out work of remote sensing proving installation.
Accompanying drawing explanation:
Fig. 1 is existing integrated car remote exhaust emission test system structure schematic diagram.
Fig. 2 is existing detachable automobile remote exhaust emission test system structure schematic diagram.
Fig. 3 is the scheme of installation of automatic calibration device.
Fig. 4 is the structural representation of automatic calibration device.
Fig. 5 is the structural representation of standard air chamber.
Fig. 6 is the right sectional structure schematic diagram of Fig. 5.
Embodiment:
The caliberating device of the disclosed motor-vehicle tail-gas Remote Sensing Testing System of the utility model, can be for the remote sensing pick-up unit of integral type and split type two kinds of modes.
Below in conjunction with accompanying drawing, describe embodiment of the present utility model in detail.
The present invention is by being placed on the front standard air chamber (3-1) of infrared eye (3-3), air chamber support (3-2), motor (3-4) and control system (3-6) form, and it is placed in radiation source (2-3) or infrared light receiving end (2-7) case.Standard air chamber (3-1) is arranged on that air chamber support (3-2) is upper and to be positioned at the positive light path A of infrared eye (3-3) upper, from catoptron (1-5) or (2-5) light of reflection through standard air chamber (3-1), enter infrared eye.There are three fixedly fixed orifices of air chamber on air chamber support (3-2) top, can place as required three standard air chambers that are filled with different component gas.Air chamber support (3-2) is controlled by a stepper motor (3-4), can make the standard air chamber (3-1) of appointment be positioned accurately in infrared eye (3-3) light path.At timing signal, by motor (3-4), first standard air chamber (3-1) (high concentration combination gas) is placed in the positive light path of infrared eye (3-3), by control system (3-6), detect signal, data after treatment, provide nominal data; By motor (3-4), second standard air chamber (low concentration combination gas) is placed in the positive light path of infrared eye (3-3), by control system (3-6), detects signal, data provide auditing result after treatment.All processes complete automatically by control system, have reached the object that system is demarcated and revised.
Fig. 4 is the structural representation of standard air chamber.
As shown in Figure 4, air chamber is a drum to standard air chamber (3-1), and air chamber main body (4-2) is metal material, and the inside and outside oxidation processes of all doing, in case exert an influence to built-in gas componant.Air chamber two ends are sapphire or calcium fluoride glass (4-1), by O-ring seal and air chamber main body (4-2) combination, do not reveal guaranteeing.In air chamber, be filled with carbon monoxide (CO) concentration 7%-11%, carbon dioxide (CO
2) concentration 40%-60% and propane concentration 0.4%, all the other combination gass that are nitrogen, demarcate and audit is used for remote sensing proving installation.Standard air chamber (3-1) in the preparation, if the mixed gas concentration environment in the environment air chamber of preparation, to guarantee being filled with stable Standard Gases in standard air chamber (3-1).
Claims (1)
1. the automatic calibration device of a motor-vehicle tail-gas Remote Sensing Testing System, at infrared light receiving end (1-3, 2-7) standard air chamber (3-1) is installed in casing, air chamber support (3-2), stepper motor (3-4) and control system (3-6) form, it is characterized in that at infrared light receiving end (1-3, 2-7) fixed head (3-5) is installed in casing case, be fixed with stepper motor (3-4) and infrared eye (3-3) thereon, one end at the air chamber support (3-2) of swing arm shape is fixed on the motor shaft of stepper motor (3-4), the other end is provided with three fixedly fixed vias of air chamber, at its through hole and be positioned on the axis A of the positive light path of infrared eye (3-3) standard air chamber (3-1) is installed, during detection, swing arm shape air chamber support (3-2) makes under the drive of stepper motor (3-4) to be arranged on that standard air chamber (3-1) on swing arm shape air chamber support (3-2) is positioned at infrared eye (3-3) carries out staking-out work above, during non-detection under the drive of control system (3-6) and stepper motor (3-4), make swing arm shape air chamber support (3-2) be positioned at off normal, unobstructed before infrared eye (3-3), do not affect its normal testing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420116669.2U CN203929625U (en) | 2014-03-13 | 2014-03-13 | The automatic calibration device of motor-vehicle tail-gas Remote Sensing Testing System |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420116669.2U CN203929625U (en) | 2014-03-13 | 2014-03-13 | The automatic calibration device of motor-vehicle tail-gas Remote Sensing Testing System |
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| Publication Number | Publication Date |
|---|---|
| CN203929625U true CN203929625U (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420116669.2U Expired - Lifetime CN203929625U (en) | 2014-03-13 | 2014-03-13 | The automatic calibration device of motor-vehicle tail-gas Remote Sensing Testing System |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677631A (en) * | 2017-09-22 | 2018-02-09 | 郑州东辰科技有限公司 | Standard tank arrangement is used in a kind of Tail gas measuring remote sensing instrument calibrating |
| CN107677630A (en) * | 2017-09-22 | 2018-02-09 | 郑州东辰科技有限公司 | A kind of Tail gas measuring remote sensing instrument calibration method and calibrating installation |
| CN107748139A (en) * | 2017-09-22 | 2018-03-02 | 郑州拽亘电子科技有限公司 | Tail gas measuring remote sensing instrument calibration method and calibrating installation |
| CN108007867A (en) * | 2017-09-22 | 2018-05-08 | 郑州拽亘电子科技有限公司 | A kind of Tail gas measuring remote sensing instrument calibrating installation |
| CN114924031A (en) * | 2022-03-15 | 2022-08-19 | 江苏省计量科学研究院(江苏省能源计量数据中心) | Detection device of motor vehicle tail gas remote sensing monitoring system |
-
2014
- 2014-03-13 CN CN201420116669.2U patent/CN203929625U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677631A (en) * | 2017-09-22 | 2018-02-09 | 郑州东辰科技有限公司 | Standard tank arrangement is used in a kind of Tail gas measuring remote sensing instrument calibrating |
| CN107677630A (en) * | 2017-09-22 | 2018-02-09 | 郑州东辰科技有限公司 | A kind of Tail gas measuring remote sensing instrument calibration method and calibrating installation |
| CN107748139A (en) * | 2017-09-22 | 2018-03-02 | 郑州拽亘电子科技有限公司 | Tail gas measuring remote sensing instrument calibration method and calibrating installation |
| CN108007867A (en) * | 2017-09-22 | 2018-05-08 | 郑州拽亘电子科技有限公司 | A kind of Tail gas measuring remote sensing instrument calibrating installation |
| CN108007867B (en) * | 2017-09-22 | 2024-01-09 | 河南交院工程技术集团有限公司 | Calibrating device for tail gas detection remote sensing instrument |
| CN114924031A (en) * | 2022-03-15 | 2022-08-19 | 江苏省计量科学研究院(江苏省能源计量数据中心) | Detection device of motor vehicle tail gas remote sensing monitoring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141105 |