CN201417252Y - Air quality on-line monitoring instrument with automatic calibration performance - Google Patents
Air quality on-line monitoring instrument with automatic calibration performance Download PDFInfo
- Publication number
- CN201417252Y CN201417252Y CN 200920172696 CN200920172696U CN201417252Y CN 201417252 Y CN201417252 Y CN 201417252Y CN 200920172696 CN200920172696 CN 200920172696 CN 200920172696 U CN200920172696 U CN 200920172696U CN 201417252 Y CN201417252 Y CN 201417252Y
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- mercury lamp
- fixed
- air quality
- line monitoring
- monitoring instrument
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Abstract
The present utility model discloses air quality on-line monitoring instrument with an automatic calibration performance. The air quality on-line monitoring instrument comprises an optical fiber fixingseat [11], an optical fiber fixing cover [12], a pen-shaped mercury lamp [1] and an elevator apparatus thereof, the pen-shaped mercury lamp is fixed on the bottom of the optical fiber fixing seat [11] through the elevator apparatus. Only the pen-shaped mercury lamp is needed elevating into the optical fiber fixing seat when calibration is performed, and after the calibration, the pen-shaped mercury lamp is lowered by the elevator apparatus. According to the utility model, automatic calibration of mercury lamps can be realized, and system measuring precision can be improved.
Description
Technical field
The utility model relates to a kind of air quality on-line monitoring instrument with Differential Optical Absorption Spectroscopy monitoring air quality.
Background technology
The Differential Optical Absorption Spectroscopy ultimate principle is to determine the content of some component substances quantitatively by analyzing absorption spectrum, and the concentration that wants to measure gas to be measured must at first be known the absorption cross section of its molecule.The absorption cross section of molecule generally all records in the laboratory having under certain experiment condition, in actual applications, because the non-ideal characteristic of optical system itself, spectrometer also can be introduced some and cause measured factors such as position of spectral line skew, profile broadening and distortion, in order to improve measuring accuracy, need demarcate with mercury lamp during actual measurement.
At present, the method for Differential Optical Absorption Spectroscopy air quality on-line monitoring system (being called for short AQMS) sampling mercury lamp demarcation is to realize by manual method.Promptly earlier optical fiber is taken off, then mercury lamp is aimed at optical fiber and entered the mouth and realize that mercury lamp demarcates, demarcation finishes, and mercury lamp is removed, and optical fiber is fixed again.Though this method can realize calibrating function, existing problems: 1: can not realize that on-line automatic mercury lamp demarcates tracking illumination spectrometer position of spectral line skew.2: fixed fiber again after timing signal must take off optical fiber, demarcate, the light path condition changes before and after demarcating.3: troublesome poeration, can not realize the remote online demarcation.
Summary of the invention
In order to overcome above deficiency, the utility model provides a kind of automatically-calibrated air quality on-line monitoring instrument, not only can solve the mercury lamp online in real time and demarcate automatically, and not need to remove optical fiber at timing signal, brings convenience to operation.
The utility model is achieved in that and comprises fiber fixed seat, optical fiber fixed cover, and it also comprises form of a stroke or a combination of strokes mercury lamp and jacking gear thereof, and the fiber fixed seat bottom has the enterable demarcation of form of a stroke or a combination of strokes mercury lamp hole, and form of a stroke or a combination of strokes mercury lamp is fixed on by jacking gear and demarcates the below, hole.Only need form of a stroke or a combination of strokes mercury lamp is risen up in the fiber fixed seat at timing signal, demarcate again form of a stroke or a combination of strokes mercury lamp to be fallen by jacking gear after finishing and get final product.
Jacking gear is made up of stepper motor, gear, tooth bar, guide rail and geometrical clamp, goes on foot dynamo-electric machine and guide rail and is fixed on the monitor, and the chute that cooperates with tooth bar is arranged on the guide rail, and gear is fixed on the step motor shaft, and form of a stroke or a combination of strokes mercury lamp is fixed on the tooth bar by geometrical clamp.
Install for convenience, stepper motor and guide rail are fixed on the holder, and holder is fixed on the monitor.
The beneficial effects of the utility model are embodied in: 1, can realize the offset of automatic mercury lamp demarcation tracking illumination spectrometer, improve the precision of systematic survey.2, easy to use, as long as it is installed in the porch of optical fiber, be that the may command mercury lamp moves and realizes calibration by sending simple control command, overcome the problem that the light path condition changes before and after demarcating.3, can realize regularly or far distance controlled is carried out real-time calibration.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the vertical view of Fig. 1.
Fig. 4 is the utility model stereoscopic-state reference diagram.
Embodiment
As shown in Figure 1 to Figure 3, guide rail 7 is fixed on the track base 6, the chute that cooperates with guide rail 7 is arranged on the tooth bar 5, stepper motor 3 is fixed on the holder 2 with track base 6, gear 4 is fixed on 3 of the stepper motors, gear 4 and tooth bar 5 engagements, form of a stroke or a combination of strokes mercury lamp 1 is fixed on the mercury lamp geometrical clamp 10, is fixed on the tooth bar 5 by web member 9.The upper and lower limit position of tooth bar 5 motions is respectively equipped with touch switch 8, and touch switch 8 is installed on the holder 2, and tooth bar 5 motion positions are finished by touch switch 8.
As shown in Figure 4, optical fiber 13 is fixed on fiber fixed seat 11 sides by optical fiber fixed cover 12, the mercury lamp jacking gear is installed in fiber fixed seat 11 belows, have the demarcation hole that the mercury lamp cover can stretch in fiber fixed seat 11 bottoms, monitor is when normal the measurement, and measure spectrum is by entering optical fiber 13 inlets in the fiber fixed seat 11; At the needs timing signal, controller sends various form of a stroke or a combination of strokes mercury lamps 1 rising orders, stepper motor 3 driven wheels 4 of this jacking gear rotate, drive tooth bar 5 and be fixed on form of a stroke or a combination of strokes mercury lamp 1 that tooth bar 5 is and rise and enter in the fiber fixed seat 11, measure spectrum is blocked by the back of form of a stroke or a combination of strokes mercury lamp 1, and mercury lamp spectrum is beaten at optical fiber 13 inlets and finished system's mercury lamp calibrating function.Demarcate and finish, controller sends mercury lamp decline order, and this device drives mercury lamp and descends.The automatic remote controlled mercury lamp calibrating function of the system that realized has improved the automaticity and the operability of system greatly.
Claims (3)
1, automatically-calibrated air quality on-line monitoring instrument, comprise fiber fixed seat [11], optical fiber fixed cover [12], it is characterized in that it also comprises form of a stroke or a combination of strokes mercury lamp [1] and jacking gear thereof, fiber fixed seat [11] bottom has the enterable demarcation of form of a stroke or a combination of strokes mercury lamp [1] hole, and form of a stroke or a combination of strokes mercury lamp is fixed on by jacking gear and demarcates the below, hole.
2, automatically-calibrated air quality on-line monitoring instrument according to claim 1, it is characterized in that jacking gear is made up of stepper motor [3], gear [4], tooth bar [5], guide rail [7] and geometrical clamp [10], go on foot dynamo-electric machine [3] and guide rail [7] is fixed on the monitor, the chute that cooperates with tooth bar [5] is arranged on the guide rail [7], gear [4] is fixed on stepper motor [3] axle, and form of a stroke or a combination of strokes mercury lamp [1] is fixed on the tooth bar [5] by geometrical clamp [10].
3, automatically-calibrated air quality on-line monitoring instrument according to claim 1 is characterized in that stepper motor [3] and guide rail [7] are fixed on the holder [2], and holder [2] is fixed on the monitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920172696 CN201417252Y (en) | 2009-06-25 | 2009-06-25 | Air quality on-line monitoring instrument with automatic calibration performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920172696 CN201417252Y (en) | 2009-06-25 | 2009-06-25 | Air quality on-line monitoring instrument with automatic calibration performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201417252Y true CN201417252Y (en) | 2010-03-03 |
Family
ID=41793676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920172696 Expired - Lifetime CN201417252Y (en) | 2009-06-25 | 2009-06-25 | Air quality on-line monitoring instrument with automatic calibration performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201417252Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975684A (en) * | 2010-10-25 | 2011-02-16 | 安徽蓝盾光电子股份有限公司 | Sampling pipe lifting device of beta-ray method PM10 (Particulate Matter 10) on-line monitor |
| CN103900980A (en) * | 2014-04-15 | 2014-07-02 | 安徽蓝盾光电子股份有限公司 | Full-automatic calibration control system for long-optical distance DOAS (Differential Optical Absorption Spectroscopy) gas analyzer and calibration method thereof |
-
2009
- 2009-06-25 CN CN 200920172696 patent/CN201417252Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975684A (en) * | 2010-10-25 | 2011-02-16 | 安徽蓝盾光电子股份有限公司 | Sampling pipe lifting device of beta-ray method PM10 (Particulate Matter 10) on-line monitor |
| CN101975684B (en) * | 2010-10-25 | 2012-11-14 | 安徽蓝盾光电子股份有限公司 | Sampling pipe lifting device of beta-ray method PM10 (Particulate Matter 10) on-line monitor |
| CN103900980A (en) * | 2014-04-15 | 2014-07-02 | 安徽蓝盾光电子股份有限公司 | Full-automatic calibration control system for long-optical distance DOAS (Differential Optical Absorption Spectroscopy) gas analyzer and calibration method thereof |
| CN103900980B (en) * | 2014-04-15 | 2016-10-05 | 安徽蓝盾光电子股份有限公司 | Full automatic calibration control system and scaling method thereof for long light path DOAS gas analyser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100303 Effective date of abandoning: 20090625 |