CN105890754A - Spectral imager integration calibration source system - Google Patents
Spectral imager integration calibration source system Download PDFInfo
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- CN105890754A CN105890754A CN201410662386.2A CN201410662386A CN105890754A CN 105890754 A CN105890754 A CN 105890754A CN 201410662386 A CN201410662386 A CN 201410662386A CN 105890754 A CN105890754 A CN 105890754A
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Abstract
The invention discloses an integration calibration source system which can emit uniform white light so as to carry out spectrum radiation degree calibration on a spectral imager and also can emit uniform monochromatic light so as to carry out spectrum calibration. Sharing of a light source during a calibration process of the spectral imager is realized. Through cooperation and selection of combination of a halogen tungsten lamp light source, an xenon light source, an ultra-wideband white light laser and a tunable filter, input switching of the uniform white light and the uniform monochromatic light is realized and demands of spectral imager spectrum radiation calibration and spectrum calibration to different light sources are satisfied.
Description
Technical field
The invention belongs to spectrum and radiometric technique field, be specifically related to a kind of by ultra broadband white light laser,
Tunable optic filter, expand device, halogen tungsten lamp light source, xenon source, electronic diaphragm and integrating sphere composition
Spectrogrph comprehensive reference source system.
Background technology
Optical spectrum imagers is a kind of by specific design and development, utilizes spectral imaging technology, can receive simultaneously
The two-dimensional space information of collection detected target and the detector of one-dimensional spectral information.The application of optical spectrum imagers with
Based on the quantification of data, the quantitative inversion of calibration, Atmospheric Correction and target information is information quantification
Three main research aspects.
Calibration is an important link of spectral imaging technology application.When the number wishing that optical spectrum imagers exports
When value meets the radiation characteristic of observed target, it is necessary to calibration.The accuracy of calibration directly influences image
Quality with spectrum.
Laboratory Calibration is basis and the key of optical spectrum imagers calibration, is checking optical spectrum imagers indices
Whether (responsiveness, signal to noise ratio etc.) reaches the capital that design requires, investigates in task overall process after being also
The primary data of these parameter stability, evaluates whether instrument from now on occurs the foundation of decay.
Optical spectrum imagers Laboratory Calibration includes spectral calibration and spectral radiant emittance calibration.Spectral calibration is surveyed exactly
The response that amount optical spectrum imagers changes with incident wavelength, also commonly referred to as spectral response, its main purpose is true
Determine the position of detector each pixel difference spectrum channel centre wavelength, determine spectral resolution etc..Spectral radiance
Calibration is the response value determining optical spectrum imagers in effective range, and input interference information intensity is with defeated
Enter the ratio of light intensity.Spectral radiant emittance calibration is that optical spectrum imagers accurately obtains ground object target radiation feature
Important guarantee.
Optical spectrum imagers calibration should carry out replication to full filed and all spectral coverages, therefore for total system
Selected light source should have stability height, life-span length, the feature such as be evenly distributed, when carrying out spectral calibration,
Also require that light source has good monochromaticity.Therefore, devise a kind of by ultra broadband white light laser, adjustable
Humorous wave filter, expand device, halogen tungsten lamp light source, xenon source, electronic diaphragm and integrating sphere composition, can
The light-source system of uniform source of light is calibrated as spectral calibration and spectral radiant emittance.
Summary of the invention
It is an object of the invention to design one and both with outgoing equal white light, optical spectrum imagers can be carried out spectral radiance
Degree calibration, can carry out the comprehensive reference source system of spectral calibration by the uniform monochromatic light of outgoing again, it is achieved light spectrum image-forming
In instrument calibration process, light source shares.
The technical solution adopted in the present invention:
The present invention by ultra broadband white light laser, tunable optic filter, expand device, halogen tungsten lamp light source, xenon
Lamp source, electronic diaphragm and integrating sphere composition.
Wherein, halogen tungsten lamp light source and xenon source the white light source needed for input spectrum radiation calibration is combined；
Ultra broadband white light laser provides high power laser to be used for producing monochromatic light.
Tunable optic filter has two sets, respectively 460～1000nm wave filter and 1000～2200nm wave filter,
The optical spectrum imagers that can calibrate as required selects one of them.It act as by based on patent tunable
Wave filter technology, incident white light laser is output as power stability, wavelength accurately, narrower bandwidth and adjustable
Humorous spectral region is respectively 460～1000nm and the one-wavelength laser of 1000～2200nm.
Expand device to be mainly used in the one-wavelength laser of outgoing in tunable optic filter being expanded, to reach right
The demand of the defeated outgoing light homogeneity of integrating sphere.
Electronic diaphragm drives the consecutive variations realizing the aperture of the diaphragm, regulation integrating sphere to input light energy by motor,
And then realize output illumination degree scalable function.
Accompanying drawing explanation
Figure optical spectrum imagers comprehensive reference source schematic diagram
Detailed description of the invention
Optical spectrum imagers comprehensive reference source system has two kinds of mode of operations: 1. spectral radiometric calibration pattern；2. light
Spectrum calibration pattern.
Spectral radiometric calibration pattern:
Open halogen tungsten lamp light source 5 and xenon source 7, light source 5,7 light sent is selected by light diaphragm 6,8
Integrating sphere 9 is entered after selecting, by the light-emitting window 10 uniform white light source of outgoing after reflection inside integrating sphere,
For carrying out the spectral radiometric calibration of optical spectrum imagers.During this pattern works, halogen can be used simultaneously
Tungsten light source 5 and xenon source 7, it is possible to the optical spectrum imagers calibrated as required selects suitable light source independent
Use.
Spectral calibration pattern:
Incided in tunable optic filter 3 by the white light of ultra broadband white light laser 1 outgoing via optical fiber 2,
Utilizing tunable optic filter technology, outgoing wavelength monochromatic light accurately, this monochromatic light is expanded by expanding device
Integrating sphere 9 is entered after bundle, by the light-emitting window 10 uniform monochromatic light of outgoing after reflection inside integrating sphere,
Spectral calibration for optical spectrum imagers.In this pattern work process, can be according to the light of optical spectrum imagers
Spectral limit selects suitable tunable optic filter, and the power by regulation ultra broadband white light laser 1 is real simultaneously
The regulation of existing monochromatic light radiance.
Claims (3)
1. one kind is used for optical spectrum imagers spectral radiometric calibration and the comprehensive light source of spectral calibration, it is characterised in that
This comprehensive light source can carry out spectral radiant emittance calibration by outgoing equal white light, can carry out light by the uniform monochromatic light of outgoing again
The comprehensive light source of spectrum calibration；And this comprehensive light source by ultra broadband white light laser, tunable optic filter, expand
Device, halogen tungsten lamp light source, xenon source, electronic diaphragm and integrating sphere composition.
2. optical spectrum imagers comprehensive reference source system as claimed in claim 1, it is characterised in that at halogen tungsten lamp
Diaphragm is placed, for regulating the radiance of integrating sphere emergent light after light source and xenon source.
3. optical spectrum imagers comprehensive reference source system as claimed in claim 1, it is characterised in that use ultra-wide
Band white light laser and tunable optic filter combination, obtain the accurate monochromatic light of wavelength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410662386.2A CN105890754A (en) | 2014-11-19 | 2014-11-19 | Spectral imager integration calibration source system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410662386.2A CN105890754A (en) | 2014-11-19 | 2014-11-19 | Spectral imager integration calibration source system |
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| CN105890754A true CN105890754A (en) | 2016-08-24 |
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| CN201410662386.2A Pending CN105890754A (en) | 2014-11-19 | 2014-11-19 | Spectral imager integration calibration source system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105929351A (en) * | 2016-06-03 | 2016-09-07 | 中国电力科学研究院 | Test apparatus and test method of sensitivity of ultraviolet imager |
| CN107036712A (en) * | 2017-06-22 | 2017-08-11 | 中国科学院长春光学精密机械与物理研究所 | A kind of spectrum channel calibration data acquisition method and system |
| CN108303238A (en) * | 2017-01-13 | 2018-07-20 | 北京航空航天大学 | Liquid crystal variable retarder spectrum phase postpones scaling system |
| CN109358000A (en) * | 2018-10-23 | 2019-02-19 | 福建信息职业技术学院 | A kind of light emitting device and a variety of monochromatic methods of output of dual hump type spectrum |
| CN110500563A (en) * | 2018-05-17 | 2019-11-26 | 华中科技大学 | A kind of uniform multiband source of parallel light of output power |
| CN110926600A (en) * | 2019-10-30 | 2020-03-27 | 航天新气象科技有限公司 | Equivalent response coefficient determination method for response characteristic of optical radiation sensor |
| CN112504448A (en) * | 2020-11-17 | 2021-03-16 | 中国科学院合肥物质科学研究院 | Irradiance calibration method for ultraviolet band of satellite-borne imaging spectrometer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202102175U (en) * | 2010-09-17 | 2012-01-04 | 北京志恒达科技有限公司 | Light path switching device for large-breadth laser etching and device for large-breadth laser etching of logo |
| CN102722024A (en) * | 2012-06-27 | 2012-10-10 | 北京国科世纪激光技术有限公司 | Light tunable filtering device and method |
| CN103196555A (en) * | 2013-03-14 | 2013-07-10 | 中国科学院安徽光学精密机械研究所 | Spectrum programmable light source system applied to hyper-spectrum calibration |
| CN103207017A (en) * | 2013-03-22 | 2013-07-17 | 中国科学院西安光学精密机械研究所 | Onboard calibration device for space-borne anemometry F-P interference spectrometer |
| CN104101430A (en) * | 2014-07-08 | 2014-10-15 | 中国科学院光电研究院 | Rapid absolute radiometric calibration method for push-broom dispersion type imaging spectrometer |
-
2014
- 2014-11-19 CN CN201410662386.2A patent/CN105890754A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202102175U (en) * | 2010-09-17 | 2012-01-04 | 北京志恒达科技有限公司 | Light path switching device for large-breadth laser etching and device for large-breadth laser etching of logo |
| CN102722024A (en) * | 2012-06-27 | 2012-10-10 | 北京国科世纪激光技术有限公司 | Light tunable filtering device and method |
| CN103196555A (en) * | 2013-03-14 | 2013-07-10 | 中国科学院安徽光学精密机械研究所 | Spectrum programmable light source system applied to hyper-spectrum calibration |
| CN103207017A (en) * | 2013-03-22 | 2013-07-17 | 中国科学院西安光学精密机械研究所 | Onboard calibration device for space-borne anemometry F-P interference spectrometer |
| CN104101430A (en) * | 2014-07-08 | 2014-10-15 | 中国科学院光电研究院 | Rapid absolute radiometric calibration method for push-broom dispersion type imaging spectrometer |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105929351A (en) * | 2016-06-03 | 2016-09-07 | 中国电力科学研究院 | Test apparatus and test method of sensitivity of ultraviolet imager |
| CN105929351B (en) * | 2016-06-03 | 2019-06-04 | 中国电力科学研究院 | Test device and the test method of ultraviolet imager sensitivity |
| CN108303238A (en) * | 2017-01-13 | 2018-07-20 | 北京航空航天大学 | Liquid crystal variable retarder spectrum phase postpones scaling system |
| CN107036712A (en) * | 2017-06-22 | 2017-08-11 | 中国科学院长春光学精密机械与物理研究所 | A kind of spectrum channel calibration data acquisition method and system |
| CN110500563A (en) * | 2018-05-17 | 2019-11-26 | 华中科技大学 | A kind of uniform multiband source of parallel light of output power |
| CN109358000A (en) * | 2018-10-23 | 2019-02-19 | 福建信息职业技术学院 | A kind of light emitting device and a variety of monochromatic methods of output of dual hump type spectrum |
| CN110926600A (en) * | 2019-10-30 | 2020-03-27 | 航天新气象科技有限公司 | Equivalent response coefficient determination method for response characteristic of optical radiation sensor |
| CN110926600B (en) * | 2019-10-30 | 2021-08-31 | 航天新气象科技有限公司 | Equivalent response coefficient determination method for response characteristic of optical radiation sensor |
| CN112504448A (en) * | 2020-11-17 | 2021-03-16 | 中国科学院合肥物质科学研究院 | Irradiance calibration method for ultraviolet band of satellite-borne imaging spectrometer |
| CN112504448B (en) * | 2020-11-17 | 2023-01-24 | 中国科学院合肥物质科学研究院 | Irradiance calibration method for ultraviolet band of satellite-borne imaging spectrometer |
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Application publication date: 20160824 |