CN102003995A - Imaging spectrometer calibration device - Google Patents
Imaging spectrometer calibration device Download PDFInfo
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- CN102003995A CN102003995A CN 201010284500 CN201010284500A CN102003995A CN 102003995 A CN102003995 A CN 102003995A CN 201010284500 CN201010284500 CN 201010284500 CN 201010284500 A CN201010284500 A CN 201010284500A CN 102003995 A CN102003995 A CN 102003995A
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- diffuse reflection
- calibration plate
- scaling equipment
- robot scaling
- imaging spectrometer
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Abstract
The invention discloses an imaging spectrometer calibration device, which comprises a calibration device supporting seat, a diffuse reflection calibration plate, a diffuse reflection calibration plate driving mechanism, a reflector and a reflector driving mechanism. The diffuse reflection calibration plate driving mechanism drives the diffuse reflection calibration plate to rotate; when the diffuse reflection calibration plate rotates to the horizontal direction, sunlight is transmitted onto the diffuse reflection calibration plate and is reflected to enter an imaging spectrometer main optical system through the reflector so as to realize the light spectrum and radiation calibration function; and when the diffuse reflection calibration plate rotates to the downwards vertical direction, a ground object enters an imaging spectrometer through the reflector so as to enter an imaging state, and the reflector driving mechanism can drive the reflector to rotate so as to realize different imaging viewing angles. When the diffuse reflection calibration plate, the reflector and the calibration device supporting seat are closed, the imaging spectrometer is positioned in a dustproof and heat-insulating state. The invention has the characteristics that: the calibration device is compact in structure and has calibrating, imaging, dustproof and heat-insulating functions.
Description
Technical field:
The present invention relates to a kind of imaging spectrometer, the robot scaling equipment on particularly a kind of imaging spectrometer, it is used for the spectrum and the radiation calibration of imaging spectrometer.
Background technology:
Imaging spectrometer can obtain a large amount of narrow wave band continuous spectrum images of target, for the information that makes acquisition has true and reliable property, needs to do the calibration calibration.But, though imaging spectrometer carried out the calibration calibration in the laboratory, in case enter working environment, owing to residing environmental aspect has greatly changed and As time goes on is subjected in various degree pollution and aging, some variations more or less all can take place in the responsiveness of detector, thereby the information authenticity that obtains is affected, particularly for spaceborne imaging spectrometer, in case emission just can not be calibrated in the laboratory again.In order to address this problem, the method for generally taking to install robot scaling equipment additional in instrument is carried out the real-time calibration calibration to instrument.
Real-time calibration device uses calibration lamp or sunshine as light source usually.The calibration lamp as light source is along with the passing of environmental change and time, and its output inevitably will change; Use sunshine as light source, also exist sun altitude to change the calibration error problem that causes, but need only sun altitude and instrument position and attitude when monitoring calibration, just can use sunshine as scaling light source.
During imaging spectrometer work,, then can improve the ability that instrument is surveyed if imaging spectrometer can be chosen to the image angle degree.Therefore, possess the robot scaling equipment of light path turnover, can realize the multi-angle observation of imaging spectrometer, to bring into play the detectivity of imaging spectrometer to greatest extent.
When imaging spectrometer is worked, be suspended in aerial a large amount of dust granule in the rugged surroundings of dust suspension and temperature extreme variation, can produce instrument and pollute.When the temperature difference is big, can produce thermal stress, destroy instrument thermal equilibrium, influence the stable performance of instrument.So robot scaling equipment also need have dustproof and heat insulating function, is subjected to contamination by dust to prevent imaging spectrometer, and reduce the influence that the temperature change brings.In addition, for making imaging spectrometer self structure small light, require robot scaling equipment compact conformation and complete function.
Summary of the invention:
The present invention seeks to design a kind of compact conformation, light little robot scaling equipment.Utilize diffuse reflection calibration plate to introduce sunshine and spectrum and radiometric calibration device are united two into one, satisfy imaging spectrometer real time spectrum and radiation calibration requirement, and can realize multi-angle observation, have dustproof and heat insulating function simultaneously as light source.The present invention is specially adapted to calibration, multi-angle imaging, the dustproof and heat insulation demand that moon tour device carries imaging spectrometer in the lunar surface environment.
In sum, how solving spectrum and radiation calibration, multi-angle observation, dustproof and heat insulation demand on a kind of device, do the light little compactness of auto levelizer, is technical matters to be solved by this invention.
Specifically invent shown in accompanying drawing 1～3
1, the imaging spectrometer robot scaling equipment is made up of diffuse reflection calibration plate 2, diffuse reflection calibration plate driving mechanism 3, catoptron 4, mirror drive mechanism 5 and robot scaling equipment bearing 1.
2, diffuse reflection calibration plate driving mechanism 3 drives 2 rotations of diffuse reflection calibration plate.When diffuse reflection calibration plate 2 was in horizontal direction, imaging spectrometer entered the calibration state.
When 3, diffuse reflection calibration plate 2 was in straight down, imaging spectrometer entered image formation state, and mirror drive mechanism 5 drives catoptron 4 and rotates, and realized different angles observation.
When 4, diffuse reflection calibration plate 2 is with catoptron 4 and robot scaling equipment bearing 1 closure, be dustproof and state of thermal isolation.
Characteristics of the present invention are:
1) the present invention unites two into one spectrum and radiometric calibration device, has satisfied the requirement of instrument spectrum and radiation calibration small light;
2) the present invention utilizes the diffuse reflection driving mechanism to drive diffuse reflection calibration plate to rotate realizing calibration, imaging, dustproof and heat insulation multinomial function, compact conformation, design ingenious;
3) the present invention utilizes mirror drive mechanism to drive catoptron and rotates the realization multi-angle observation.
Description of drawings:
Fig. 1 is a robot scaling equipment structural representation of the present invention;
Among the figure: 1---the robot scaling equipment bearing;
2---diffuse reflection calibration plate;
3---diffuse reflection calibration plate driving mechanism;
4---catoptron;
5---mirror drive mechanism;
6---imaging spectrometer.
Fig. 2 is three kinds of functional status figure of apparatus of the present invention, and a. calibrates state; B. image formation state; C. dustproof, state of thermal isolation.
Different observation angle constitutional diagrams when Fig. 3 is apparatus of the present invention imaging.
Embodiment:
Provide better embodiment of the present invention according to Fig. 1 to Fig. 3 below, in order to architectural feature of the present invention and implementation method to be described, but not be used for limiting scope of the present invention.
Robot scaling equipment comprises following several sections in the present embodiment: diffuse reflection calibration plate (2), diffuse reflection calibration plate driving mechanism (3), catoptron (4), mirror drive mechanism (5), robot scaling equipment bearing (1).
1) diffuse reflection calibration plate (2): the special design and fabrication of material warp by doped with rare-earth elements, have stable chemical and physical properties, this diffuse reflection calibration plate can be used for producing special absorption peak, and uniform area light source is provided, specifically by peace light made.Diffuse reflection calibration plate can be calibrated plate driving mechanism (3) control rotation by diffuse reflection in the present embodiment, realizes calibration, imaging, dustproof and heat insulating function when going to different angles respectively.Diffuse reflection calibration plate driving mechanism (3) is held by TRUM-30 type ultrasound electric machine, 61804 profile shafts and respective axes of rotation is formed.
2) catoptron (4): catoptron (4) is the quartz glass of electroplate film, and effect is that the light from diffuse reflection calibration plate or clutter reflections is reflected into into calibration of optics main system or imaging.Catoptron in the present embodiment (4) can be driven by mirror drive mechanism (5) and rotate different angles, forms multi-angle observation.Mirror drive mechanism (5) is held by TRUM-30 type ultrasound electric machine, 61804 profile shafts and respective axes of rotation is formed.
3) robot scaling equipment bearing (1) and imaging spectrometer (6): robot scaling equipment bearing (1) plays transition and supporting role, and robot scaling equipment is installed on the imaging spectrometer (6).Present embodiment imaging spectrometer (6) designed life is 3 years, and less than 10nm, 900-2500nm requires the real time spectrum calibration precision to be better than 5nm less than 15nm to its spectrum open score rate at 400-950nm, and the radiation calibration precision is better than 10%.
As mentioned above, the imaging spectrometer robot scaling equipment can change sunshine into the area source that contains characteristic absorption peak uniformly, enters into and waits to calibrate the imaging spectrometer device, realizes spectral instrument spectrum and radiation calibration.Simultaneously, design two cover rotating mechanisms in robot scaling equipment both can have been realized calibration, imaging, dustproof and heat insulating function conversion, can realize multi-angle observation under image formation state again.
Claims (1)
1. imaging spectrometer robot scaling equipment, it is calibrated plate (2), diffuse reflection calibration plate driving mechanism (3), catoptron (4), mirror drive mechanism (5) and robot scaling equipment bearing (1) by diffuse reflection and forms, and it is characterized in that: described robot scaling equipment is installed on imaging spectrometer (6) optical system porch; Described diffuse reflection calibration plate (2) is fixed on the lower end of robot scaling equipment bearing (1), is the axle center rotation with the point of fixity on the robot scaling equipment bearing (1) under the motor-driven in diffuse reflection calibration plate driving mechanism (3); Described catoptron (4) is fixed on the upper end of robot scaling equipment bearing (1), is that rotate in the axle center with the point of fixity on the robot scaling equipment bearing (1) under the motor-driven in mirror drive mechanism (5); Described robot scaling equipment is when off working state, and diffuse reflection calibration plate (2), catoptron (4) are driven and robot scaling equipment bearing (1) closure by its driving mechanism,, thermal insulation protection dustproof to spectrometer; Described robot scaling equipment is when work, diffuse reflection calibration plate driving mechanism (3) is calibrated plate (2) with diffuse reflection and is turned to horizontal direction, sunshine is incident to diffuse reflection calibration plate (2), enters imaging spectrometer (6) through catoptron (4) reflection, can begin instrument is carried out spectrum and radiation calibration; When the needs imaging spectrometer is worked, drive diffuse reflection calibration plate (2) by diffuse reflection calibration plate driving mechanism (3) and turn to direction straight down, this moment, instrument can be observed target, drive catoptron (4) by mirror drive mechanism (5) and rotate a certain angle, can realize the imaging observation of different angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102845004A CN102003995B (en) | 2010-09-17 | 2010-09-17 | Imaging spectrometer calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102845004A CN102003995B (en) | 2010-09-17 | 2010-09-17 | Imaging spectrometer calibration device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102003995A true CN102003995A (en) | 2011-04-06 |
| CN102003995B CN102003995B (en) | 2012-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102845004A Expired - Fee Related CN102003995B (en) | 2010-09-17 | 2010-09-17 | Imaging spectrometer calibration device |
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| CN (1) | CN102003995B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155001A (en) * | 2014-08-15 | 2014-11-19 | 中国科学院上海技术物理研究所 | In-place fine spectral analysis system for planetary surface |
| CN105021531A (en) * | 2015-07-10 | 2015-11-04 | 中国农业科学院农业环境与可持续发展研究所 | Intelligent protective type diffuse reflection reference plate |
| CN110864707A (en) * | 2019-11-21 | 2020-03-06 | 长光卫星技术有限公司 | High-reliability high-self-locking-capacity calibration mechanism |
| CN114252152A (en) * | 2021-12-31 | 2022-03-29 | 中国科学院合肥物质科学研究院 | Satellite-borne diffuse transmission type limb calibration mechanism |
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| WO2000022413A1 (en) * | 1998-10-13 | 2000-04-20 | Rio Grande Medical Technologies, Inc. | Methods and apparatus for tailoring spectroscopic calibration models |
| CN101251477A (en) * | 2008-03-28 | 2008-08-27 | 中国科学院上海技术物理研究所 | Complete visual field spectrum scaling device for gazing type imaging spectrometer |
| CN101526396A (en) * | 2009-04-10 | 2009-09-09 | 中国科学院上海技术物理研究所 | Embedded spectrum and radiation real-time calibration device |
| CN101788339A (en) * | 2010-01-27 | 2010-07-28 | 中国科学院上海技术物理研究所 | Spectral automatic calibration device and method of imaging spectrometer |
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2010
- 2010-09-17 CN CN2010102845004A patent/CN102003995B/en not_active Expired - Fee Related
Patent Citations (5)
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| US4836674A (en) * | 1985-12-13 | 1989-06-06 | Bertin & Cie | Method and apparatus for determining color, in particular of a dental prosthesis |
| WO2000022413A1 (en) * | 1998-10-13 | 2000-04-20 | Rio Grande Medical Technologies, Inc. | Methods and apparatus for tailoring spectroscopic calibration models |
| CN101251477A (en) * | 2008-03-28 | 2008-08-27 | 中国科学院上海技术物理研究所 | Complete visual field spectrum scaling device for gazing type imaging spectrometer |
| CN101526396A (en) * | 2009-04-10 | 2009-09-09 | 中国科学院上海技术物理研究所 | Embedded spectrum and radiation real-time calibration device |
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| 《PROC.SPIE，2001》 20011231 Folkman M， Peariman J， Liao L，et al 《EO-1/hyperion hyperspectral imager design， development，characterization， and calibration》 1-12页 1 第40卷, 第4151期 2 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155001A (en) * | 2014-08-15 | 2014-11-19 | 中国科学院上海技术物理研究所 | In-place fine spectral analysis system for planetary surface |
| CN105021531A (en) * | 2015-07-10 | 2015-11-04 | 中国农业科学院农业环境与可持续发展研究所 | Intelligent protective type diffuse reflection reference plate |
| CN110864707A (en) * | 2019-11-21 | 2020-03-06 | 长光卫星技术有限公司 | High-reliability high-self-locking-capacity calibration mechanism |
| CN114252152A (en) * | 2021-12-31 | 2022-03-29 | 中国科学院合肥物质科学研究院 | Satellite-borne diffuse transmission type limb calibration mechanism |
| CN114252152B (en) * | 2021-12-31 | 2023-06-30 | 中国科学院合肥物质科学研究院 | Satellite-borne diffuse transmission type edge-facing calibration mechanism |
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| Publication number | Publication date |
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| CN102003995B (en) | 2012-02-01 |
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