CN104316187B - Big visual field Hyper spectral Imaging difference absorption spectrum instrument spectrum scaling device - Google Patents
Big visual field Hyper spectral Imaging difference absorption spectrum instrument spectrum scaling device Download PDFInfo
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- CN104316187B CN104316187B CN201410626066.1A CN201410626066A CN104316187B CN 104316187 B CN104316187 B CN 104316187B CN 201410626066 A CN201410626066 A CN 201410626066A CN 104316187 B CN104316187 B CN 104316187B
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- quartzy
- reflection plate
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- integrating sphere
- diffusing reflection
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Abstract
The invention discloses a kind of big visual field Hyper spectral Imaging difference absorption spectrum instrument spectrum scaling device, including quartzy diffusing reflection plate integrating sphere, correspondence fenestra position is provided with monitoring with telescope, monitoring spectrometer outside quartzy diffusing reflection plate integrating sphere, correspondence fenestra position, which is also rotatablely equipped with rotation platform, rotation platform, outside quartzy diffusing reflection plate integrating sphere is provided with big visual field Hyper spectral Imaging difference absorption spectrum instrument.The present invention solves problem present in big visual field Hyper spectral Imaging difference absorption spectrum instrument spectral calibration at present, improves spectral calibration efficiency and precision.
Description
Technical field
The present invention relates to environmental monitoring, specifically a kind of big visual field Hyper spectral Imaging difference absorption spectrum instrument spectrum is determined
Device for mark.
Background technology
Big visual field Hyper spectral Imaging difference absorption spectrum instrument is by measuring air, ultraviolet, the visible scattering spectrum of earth's surface, simultaneously
Absorbed using trace gas at ultraviolet, visible waveband " fingerprint ", atmospheric trace gas is obtained using difference absorption spectrum algorithm
Concentration.The load pushes away the mode of sweeping using planar array detector and worked, and possesses 114 degree of big visual fields, and in track 705km, ground breadth can
Up to 2600km.Load obtains ultraviolet, visible waveband spectral information, and its spectral calibration precision decides that the final data of load are anti-
Drill precision.
Spectral calibration is carried out by the way of turntable is combined using element lamp at present, such as Fig. 1 shows.Robot scaling equipment includes element
Lamp and high-accuracy turntable.Load is placed on turntable center, and light source etc. is placed on turntable cantilever, around the rotation of instrument entrance pupil.Calibrate light
The light that source is sent is passed through to be rotated by turntable, the detector calibration that can be tieed up to different spaces.Multiple rotary turntable cantilever completes complete
Visual field spectrum is calibrated.
The subject matter that existing robot scaling equipment is present is：
1st, it is longer the time required to calibration.Current device single pass about covers 0.5 degree of visual field, need to such as complete 114 degree and regard
, 228 tests need to be carried out.
2nd, big visual field rotation can cause entrance pupil light to offset, and given marker tape carrys out deviation.
It is an object of the invention to provide a kind of big visual field Hyper spectral Imaging difference absorption spectrum instrument spectral calibration for the content of the invention
Device, to solve the problem of prior art is present.
In order to achieve the above object, the technical solution adopted in the present invention is：
Big visual field Hyper spectral Imaging difference absorption spectrum instrument spectrum scaling device, it is characterised in that：Including integration ball,
Integration ball side is provided with fenestra, and integrating sphere sphere inner wall is uniformly provided with multiple light sources, and integrating sphere sphere inner wall is also set up
There is the quartzy diffusing reflection plate as reflecting surface, constituted quartzy diffusing reflection plate by integration ball, quartzy diffusing reflection plate, light source and integrated
Ball, correspondence fenestra position is provided with monitoring telescope, passed through with monitoring with telescope outside quartzy diffusing reflection plate integrating sphere
The monitoring spectrometer of optical fiber connection, the receiving terminal alignment integration ball fenestra of the monitoring telescope is unrestrained positioned at quartz
Correspondence fenestra position, which is also rotatablely equipped with rotation platform, rotation platform, outside reflecting plate integrating sphere is provided with big visual field ultraphotic and composes into
Aberration point absorption spectrometer.
Described big visual field Hyper spectral Imaging difference absorption spectrum instrument spectrum scaling device, it is characterised in that：The light source
For multiple mercury argon lamps and multiple PtCrNe hollow cathode lamps, uniform point respectively of multiple mercury argon lamps and multiple PtCrNe hollow cathode lamps
Cloth is on the surface of emission in integration ball.
Described big visual field Hyper spectral Imaging difference absorption spectrum instrument spectrum scaling device, it is characterised in that：The quartz
Diffusing reflection plate plates film preparation on integrating sphere sphere inner wall by quartz glass by quartzy sandblasting, reverse side.
The present invention solves problem present in big visual field Hyper spectral Imaging difference absorption spectrum instrument spectral calibration at present, carries
High spectral calibration efficiency and precision.
Brief description of the drawings
Fig. 1 is that prior art carries out spectral calibration schematic diagram using element lamp by the way of turntable is combined.
Fig. 2 is structure principle chart of the present invention.
Embodiment
It is shown in Figure 1, big visual field Hyper spectral Imaging difference absorption spectrum instrument spectrum scaling device, including integration ball
9, integration ball 9 side is provided with fenestra 10, and the integration inwall of ball 9 is uniformly provided with multiple light sources, integrates the inwall of ball 9
The quartzy diffusing reflection plate as reflecting surface is additionally provided with, quartz is constituted by integration ball 9, quartzy diffusing reflection plate, light source and is overflow instead
Plate integrating sphere 1 is penetrated, monitoring telescope 4 is provided with, with monitoring positioned at outer correspondence fenestra 10 position of quartzy diffusing reflection plate integrating sphere 1
The monitoring spectrometer 6 connected with telescope 4 by optical fiber 5, the receiving terminal alignment integration ball fenestra of monitoring telescope 4
10, also it is rotatablely equipped with rotation platform 7, rotation platform 7 and sets positioned at outer correspondence fenestra 10 position of quartzy diffusing reflection plate integrating sphere 1
It is equipped with big visual field Hyper spectral Imaging difference absorption spectrum instrument 8.
Light source is multiple mercury argon lamps 2 and multiple PtCrNe hollow cathode lamps 3, and multiple mercury argon lamps 2 and multiple PtCrNe are hollow
Cathode modulation 3 is respectively uniformly distributed on the surface of emission in integration ball 9.
Quartzy diffusing reflection plate plates film preparation on the integration inwall of ball 9 by quartz glass by quartzy sandblasting, reverse side.
Operation principle of the present invention is：By element lamp（Mercury argon lamp 2, PtCrNe hollow cathode lamps 3 each 20）It is uniform to install
In quartzy diffusing reflection plate integrating sphere 1, each small cup lamp can work independently.Big visual field ultraphotic is driven to compose into using rotation platform 7
Aberration point absorption spectrometer 8 rotates, and 3 measurements can complete complete visual field spectrum calibration.Test simultaneously, utilizes 4 monitoring telescopes
4th, the monitoring component that optical fiber 5, monitoring are constituted with spectrometer 6 is monitored in real time to the optical information that integrating sphere is provided, and is used as standard
Source.
The main characteristic of the invention lies in that：1st, spectrum scaling device of the invention based on integrating sphere, element lamp, is load light
Spectrum calibration provides large area, uniform scaling light source；2nd, quartzy diffusing reflection plate integrating sphere is invented, the integrating sphere inner surface is by stone
English diffusing reflection plate is constituted.
Integrating sphere, which has, can provide large area, the characteristic of uniform light output, by spectral calibration element lamp and integrating sphere phase
With reference to, can be provided for spectral calibration covering larger field scaling light source（About cover 40 degree）.The interior of reflection is used as in integrating sphere
Surface typically uses polytetrafluoroethylmaterial material, and the material has no problem when as conventional radiation calibration, but as light
During spectrum calibration, because polytetrafluoroethylmaterial material itself affect can carry out structure to band, spectral calibration precision is influenceed.Therefore, send out
Understand the integrating sphere based on quartzy full marks plate, by the use of quartzy diffusing reflection plate as reflecting surface, reduce because material self-characteristic is given
The influence caused is calibrated, the quartzy diffusing reflection plate is by quartz glass by quartzy sandblasting（Time 3-5min, 100-200 mesh Buddha's warrior attendants
Sand, air pressure 0.6-0.8Mpa）, the technique such as reverse side plated film prepares and completes.
Claims (1)
1. big visual field Hyper spectral Imaging difference absorption spectrum instrument spectrum scaling device, it is characterised in that：Including integration ball, product
Bulb separation spheroid side is provided with fenestra, and integrating sphere sphere inner wall is uniformly provided with multiple light sources, and integrating sphere sphere inner wall is additionally provided with
As the quartzy diffusing reflection plate of reflecting surface, constituted quartzy diffusing reflection plate by integration ball, quartzy diffusing reflection plate, light source and integrated
Ball, correspondence fenestra position is provided with monitoring telescope, passed through with monitoring with telescope outside quartzy diffusing reflection plate integrating sphere
The monitoring spectrometer of optical fiber connection, the receiving terminal alignment integration ball fenestra of the monitoring telescope is unrestrained positioned at quartz
Correspondence fenestra position, which is also rotatablely equipped with rotation platform, rotation platform, outside reflecting plate integrating sphere is provided with big visual field ultraphotic and composes into
Aberration point absorption spectrometer；
The light source is multiple mercury argon lamps and multiple PtCrNe hollow cathode lamps, multiple mercury argon lamps and multiple PtCrNe hollow cathodes
Lamp is respectively uniformly distributed on the reflecting surface in integration ball；
The quartzy diffusing reflection plate plates film preparation on integrating sphere sphere inner wall by quartz glass by quartzy sandblasting, reverse side.
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| CN201410626066.1A CN104316187B (en) | 2014-11-08 | 2014-11-08 | Big visual field Hyper spectral Imaging difference absorption spectrum instrument spectrum scaling device |
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| CN201410626066.1A CN104316187B (en) | 2014-11-08 | 2014-11-08 | Big visual field Hyper spectral Imaging difference absorption spectrum instrument spectrum scaling device |
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| CN104316187A CN104316187A (en) | 2015-01-28 |
| CN104316187B true CN104316187B (en) | 2017-07-25 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109238991A (en) * | 2018-11-14 | 2019-01-18 | 中国科学院合肥物质科学研究院 | A kind of big view field imaging spectrometer spectrum curvature correction method of EO-1 hyperion |
| CN109374550A (en) * | 2018-11-16 | 2019-02-22 | 中国科学院合肥物质科学研究院 | Super-resolution spectrograph spectrum calibration method based on optical transmission spectra |
| CN109324008B (en) * | 2018-12-03 | 2021-03-23 | 中国科学院合肥物质科学研究院 | Movable part of sunlight calibration window baffle of ultraviolet hyperspectral atmospheric composition detector |
| CN111044872A (en) * | 2019-12-12 | 2020-04-21 | 苏州长光华芯光电技术有限公司 | Semiconductor laser device testing device |
| CN117147331B (en) * | 2023-10-27 | 2024-01-26 | 中国石油大学(华东) | Three-point bending test device and test method suitable for ultrathin brittle material |
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| CN102323231B (en) * | 2011-08-19 | 2013-04-24 | 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 |
| CN102494772B (en) * | 2011-12-23 | 2013-10-09 | 中国科学院合肥物质科学研究院 | Alignment method applied to preposed optical system with wide field of view |
| CN102841342A (en) * | 2012-08-30 | 2012-12-26 | 中国科学院西安光学精密机械研究所 | On-satellite spectrum calibration method and system of space-time combined modulation interference imaging spectrometer |
| CN103105284B (en) * | 2013-01-14 | 2016-01-20 | 中国科学院光电技术研究所 | Device and method for measuring transmittance of optical components of illumination system in photoetching machine |
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