CN103543110A - Special gas calibration device of large-visual-field atmospheric trace gas monitor - Google Patents
Special gas calibration device of large-visual-field atmospheric trace gas monitor Download PDFInfo
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- CN103543110A CN103543110A CN201310485504.2A CN201310485504A CN103543110A CN 103543110 A CN103543110 A CN 103543110A CN 201310485504 A CN201310485504 A CN 201310485504A CN 103543110 A CN103543110 A CN 103543110A
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Abstract
The invention discloses a special gas calibration device of a large-visual-field atmospheric trace gas monitor. The gas calibration device comprises a telescope, an optical fiber beam divided into 28 parts and a gas sample pool divided into 28 parts, wherein all the parts of the gas sample pool are independent and are respectively provided with a gas feeding hole and a gas discharging hole; the telescope can collect solar scattered light; the solar scattered light is transmitted to the output ends of 28 optical fibers through the optical fiber beam to illuminate the gas sample pool; standard gas with different concentrations is filled into the 28 independent parts of the gas sample pool, so that a gas calibration pool, which covers a visual field and is matched with the ground resolution, is supplied to calibration of the large-visual-field atmospheric trace gas monitor. According to the gas calibration device, the problem that no special gas calibration device is applied to the inspection of the performance of the large-visual-field atmospheric trace gas monitor is solved, and the special gas calibration device is supplied to the monitor. The gas calibration device is simple in structure, reasonable in design, high in stability, economical and practical.
Description
Technical field
The present invention relates to environmental monitoring technology field, relate in particular to a kind of large visual field atmospheric trace gas monitor special gas caliberating device.
Background technology
Large visual field atmospheric trace gas monitor is spaceborne environment supervision instrument, and instrument is by measuring ultraviolet, the visible scattering spectrum on atmosphere, earth's surface and utilizing trace gas to absorb, adopt difference absorption spectrum algorithm to obtain atmospheric trace gas concentration at " fingerprint " of ultraviolet, visible waveband.This instrument adopts planar array detector to push away the mode of sweeping and works, and has the 114 large visual fields of degree, and when track 705km, ground fabric width can reach 2600km, specifically sees Fig. 1.
Large visual field atmospheric trace gas monitor is comprised of 4 passage Hyper spectral Imaging spectrometers, the corresponding 114 large visual fields of degree of space dimension of spectrometer, this type of instrument generally adopts multirow to merge into the mode deal with data of a line in space dimension for improving signal to noise ratio (S/N ratio), as large visual field atmospheric trace gas monitor ground fabric width 48km, corresponding pixel merges and is about 36 row, is equivalent to 114 degree and is divided into 28 parts.
Large visual field atmospheric trace gas monitor take that to measure trace gas be final purpose, therefore need to use special-purpose Demarcate Gas pond to verify instrument performance, and current document and patent only relate to general general gas flow demarcation pond, cannot meet instrument calibration demand.
Therefore need the special-purpose Demarcate Gas device of invention, this device needs to meet and covers the 114 large visual fields of degree, is divided into 28 parts (matching with ground resolution), and 28 parts can be independently, be filled with the calibrating gas of variable concentrations.
Summary of the invention
The object of the invention is exactly in order to make up the defect of prior art, and a kind of large visual field atmospheric trace gas monitor special gas caliberating device is provided.
The present invention is achieved by the following technical solutions:
A kind of large visual field atmospheric trace gas monitor special gas caliberating device, include telescope, 1 minute 28 fibre bundle and 1 minute 28 gas sample cell, 1 minute described 28 gas sample cell are independence and be provided with independently blowhole and venthole separately, described telescope is collected diffusion light of the sun, through 1 minute described 28 fibre bundle, transfer to 28 fiber-optic outputs and illuminate 1 minute described 28 gas sample cell, at 28 of the 1 minute 28 gas sample cell calibrating gas that are independently filled with variable concentrations in gas sample cell, for the atmospheric trace gas monitor calibration of large visual field provides the Demarcate Gas pond that covers visual field and match with ground resolution.
Gas cell partly covers whole visual fields (114 degree visual field) of instrument, and is divided into 28 parts according to the ground resolution of instrument, and these 1 minute 28 gas sample cell is independent separately, has independently blowhole and venthole, can be filled with separately the calibrating gas of variable concentrations.
When large visual field atmospheric trace gas monitor is used this device, by measuring the calibrating gas of 28 parts of variable concentrations that match with ground resolution in 114 degree, and compare and measure the performance that concentration and calibrating gas concentration are carried out validation instrument, complete the Demarcate Gas work of instrument.
Advantage of the present invention is: while the invention solves research and development large visual field atmospheric trace gas monitor performance verification without the problem of special gas caliberating device, for providing to demarcate, this instrument uses special gas caliberating device, and simple in structure, reasonable in design, good stability, economical and practical.
Accompanying drawing explanation
Fig. 1 is large visual field atmospheric trace gas monitor fundamental diagram over the ground.
Fig. 2 is principle of the invention figure.
Embodiment
As shown in Figure 2, a kind of large visual field atmospheric trace gas monitor special gas caliberating device, include telescope 1, 1 minute 28 fibre bundle 2 and 1 minute 28 gas sample cell 4, described 1 minute 28 gas sample cell 4 are independence and be provided with independently blowhole 5 and venthole 6 separately, described telescope 1 is collected diffusion light of the sun, through described 1 minute 28 fibre bundles 2, transfer to 28 fiber-optic outputs 3 and illuminate 1 minute described 28 gas sample cell 4, at 28 of 1 minute 28 gas sample cell 4 calibrating gas that are independently filled with variable concentrations in gas sample cell, for the atmospheric trace gas monitor calibration of large visual field provides the Demarcate Gas pond that covers visual field and match with ground resolution.
Claims (1)
1. a large visual field atmospheric trace gas monitor special gas caliberating device, it is characterized in that: include telescope, 1 minute 28 fibre bundle and 1 minute 28 gas sample cell, 1 minute described 28 gas sample cell are independence and be provided with independently blowhole and venthole separately, described telescope is collected diffusion light of the sun, through 1 minute described 28 fibre bundle, transfer to 28 fiber-optic outputs and illuminate 1 minute described 28 gas sample cell, at 28 of the 1 minute 28 gas sample cell calibrating gas that are independently filled with variable concentrations in gas sample cell, for the atmospheric trace gas monitor calibration of large visual field provides the Demarcate Gas pond that covers visual field and match with ground resolution.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310485504.2A CN103543110B (en) | 2013-10-16 | 2013-10-16 | A kind of Large visual angle atmospheric trace gas monitor special gas caliberating device |
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| CN201310485504.2A CN103543110B (en) | 2013-10-16 | 2013-10-16 | A kind of Large visual angle atmospheric trace gas monitor special gas caliberating device |
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| CN103543110A true CN103543110A (en) | 2014-01-29 |
| CN103543110B CN103543110B (en) | 2016-06-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424611A (en) * | 2015-11-11 | 2016-03-23 | 中国科学院合肥物质科学研究院 | Comprehensive testing and verification system for atmospheric trace gas observation ground performance |
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| CN101021474A (en) * | 2006-12-05 | 2007-08-22 | 中国科学院安徽光学精密机械研究所 | Opening gas multi-element monitoring instrument and monitoring method |
| CN201653885U (en) * | 2010-04-09 | 2010-11-24 | 苏州大学 | Micro-plate reader |
| US20110211193A1 (en) * | 2010-03-01 | 2011-09-01 | Gas Technology Institute | Pressure controlled spectroscopic heating value sensor |
| CN202092950U (en) * | 2011-04-26 | 2011-12-28 | 浙江师范大学 | Scaling gas sample cell device in spectral measurement |
| CN102323231A (en) * | 2011-08-19 | 2012-01-18 | 中国科学院安徽光学精密机械研究所 | Multi-axial differential absorption spectrometer calibration system and method |
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2013
- 2013-10-16 CN CN201310485504.2A patent/CN103543110B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101021474A (en) * | 2006-12-05 | 2007-08-22 | 中国科学院安徽光学精密机械研究所 | Opening gas multi-element monitoring instrument and monitoring method |
| US20110211193A1 (en) * | 2010-03-01 | 2011-09-01 | Gas Technology Institute | Pressure controlled spectroscopic heating value sensor |
| CN201653885U (en) * | 2010-04-09 | 2010-11-24 | 苏州大学 | Micro-plate reader |
| CN202092950U (en) * | 2011-04-26 | 2011-12-28 | 浙江师范大学 | Scaling gas sample cell device in spectral measurement |
| CN102323231A (en) * | 2011-08-19 | 2012-01-18 | 中国科学院安徽光学精密机械研究所 | Multi-axial differential absorption spectrometer calibration system and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424611A (en) * | 2015-11-11 | 2016-03-23 | 中国科学院合肥物质科学研究院 | Comprehensive testing and verification system for atmospheric trace gas observation ground performance |
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| CN103543110B (en) | 2016-06-08 |
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