CN111442841A - Composite calibration device for thermal infrared hyperspectral imager - Google Patents
Composite calibration device for thermal infrared hyperspectral imager Download PDFInfo
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- CN111442841A CN111442841A CN202010384260.9A CN202010384260A CN111442841A CN 111442841 A CN111442841 A CN 111442841A CN 202010384260 A CN202010384260 A CN 202010384260A CN 111442841 A CN111442841 A CN 111442841A
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- 239000002131 composite material Substances 0.000 title claims abstract description 41
- 238000001228 spectrum Methods 0.000 claims abstract description 31
- 230000003595 spectral effect Effects 0.000 claims abstract description 10
- 238000001514 detection method Methods 0.000 claims abstract description 9
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 9
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 9
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 9
- 230000005855 radiation Effects 0.000 claims description 17
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 11
- 239000000758 substrate Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 230000003287 optical effect Effects 0.000 claims description 6
- 229910052697 platinum Inorganic materials 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 230000000007 visual effect Effects 0.000 claims description 2
- 238000009529 body temperature measurement Methods 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000010276 construction Methods 0.000 claims 1
- 238000003384 imaging method Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 238000000701 chemical imaging Methods 0.000 abstract description 4
- 238000000862 absorption spectrum Methods 0.000 abstract description 3
- 230000010354 integration Effects 0.000 abstract description 2
- 229920000642 polymer Polymers 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000002861 polymer material Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000002329 infrared spectrum Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000005062 Polybutadiene Substances 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000003331 infrared imaging Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
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- 238000005057 refrigeration Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/2823—Imaging spectrometer
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/0297—Constructional arrangements for removing other types of optical noise or for performing calibration
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/42—Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J2003/2866—Markers; Calibrating of scan
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Radiation Pyrometers (AREA)
Abstract
The invention discloses a composite calibration device for a thermal infrared hyperspectral imager, which is based on the practical characteristics that a polymer composite material has thermal infrared characteristic absorption spectrum and is easy to integrate with a system, provides a composite structure adopting 'imaging view field and calibration view field rotation alternation', and realizes time-sharing observation of an instrument on a variable temperature black body, a target scene and polytetrafluoroethylene by driving of a stepping motor, thereby realizing three modes of radiometric calibration, target detection and spectrum calibration. Compared with the condition that the existing thermal infrared hyperspectral imager calibration device can only realize radiometric calibration, the device can realize spectral calibration while realizing high-precision radiometric calibration. The device formed by the method has strong stability and high integration level, is particularly suitable for the integrated use of an airborne or satellite-borne thermal infrared hyperspectral imaging instrument, and has obvious advantages in calibration function.
Description
The technical field is as follows:
the invention relates to a composite calibration device applied to a thermal infrared hyperspectral imager and an application method, in particular to a calibration device designed by utilizing a high polymer material with thermal infrared spectrum absorption characteristics and a variable temperature black body.
Background art:
in the field of earth science, the premise of realizing the attribute identification of the real substances of the ground objects is to obtain the surface temperature and the spectral emissivity curve of the earth. The prior knowledge is utilized by the ground object temperature obtained by the existing infrared remote sensing imaging technology (including single-band imaging, dual-band split window imaging, multi-band infrared imaging and the like) based on remote sensing data analysis. From the analysis of remote sensing, the acquisition of the real temperature of the target must depend on the accurate separation of the physical temperature and the spectral emissivity, and the thermal infrared hyperspectral imaging technology provides a brand-new remote sensing technical means for realizing the target. The thermal infrared hyperspectral imager has a principle similar to that of a traditional imaging spectrometer, and mainly obtains fine spectrum and image information of a spectrum band of 8.0-12.5 microns. By the characteristics of the thermal infrared emissivity spectrum, the number of unknowns in the surface thermal infrared radiation transmission equation set can be reduced, so that the problem of uncertainty becomes more appropriate, and a more accurate surface temperature inversion result is obtained. Based on the method, the method can play an important role in the fields of earth climate change, urban heat island effect, cold island effect, remote sensing drought index, earthquake infrared radiation, atmospheric environment monitoring and the like.
Due to the limitation of key technologies such as a thermal infrared area array detector, a deep low temperature optical system and the like, a hyperspectral imaging system of a thermal infrared spectrum band is mainly an airborne system abroad, and a satellite-borne system is not available. In recent years, with the development of focal plane detectors and refrigeration technologies, the development work of thermal infrared hyperspectral imagers is more and more emphasized, various systems are developed in succession in various countries, and the technology is in a vigorous development period at present. The conventional heat-carrying infrared hyperspectral imager is generally provided with an organic upper calibration device, and the device realizes the on-board radiation calibration of a system by designing a black body, so that the quantitative application degree of the imager is improved. The onboard thermal infrared hyperspectral imager is a typical hyperspectral instrument, the spectral characteristics are important technical parameters, and due to the difference between the onboard/satellite environment and a laboratory, the actual operation of the instrument often has spectral drift, and at present, no technical means is available for realizing on-track spectral calibration.
In order to solve the problems, according to the characteristic that a specially set high polymer material has a characteristic infrared absorption spectrum peak in a spectrum band of 8.0-12.5 um, the invention provides an imaging view field and calibration view field rotation alternation structure based on a variable temperature black body and a polytetrafluoroethylene high polymer material, and composite calibration of a heat-machine-carried infrared hyperspectral imager is realized. A calibration device system applicable to an onboard thermal infrared hyperspectral imager relates to effectively improving the quantitative application degree of the thermal infrared hyperspectral imager.
The invention content is as follows:
the invention relates toA kind ofThe composite calibration method and the device are applied to the thermal infrared hyperspectral imager, in particular to a set of remote sensing imaging system designed by utilizing the characteristic that gas molecules vibrate to form a specific infrared absorption spectrum, and particularly to a composite system which can inherit to an airborne or satellite-borne thermal infrared hyperspectral imager and has the functions of spectrum calibration and radiation calibration. In order to achieve the above purpose, the technical scheme of the invention is as follows: a composite calibration system for a heat-carrying machine-mounted infrared hyperspectral imager comprises a target detection scene, a composite calibration device and a heat-carrying machine-mounted infrared hyperspectral imager. A kind ofThe composite calibration system for the high-resolution satellite-borne thermal infrared hyperspectral imager comprises a target detection scene, a satellite-borne thermal infrared hyperspectral imager main telescope, a composite calibration device and a satellite-borne thermal infrared hyperspectral imaging back light path body.
Aiming at the load of a heat-carrying infrared hyperspectral imager, the working principle of the invention is as follows: the rotating part 2 drives the composite calibration device to rotate, so that thermal infrared radiation emitted by a target detection scene can be completely received by the airborne thermal infrared hyperspectral imager through the hollow part 3, and the normal target detection working mode of the imager is completed; then the rotating component 2 drives the composite calibration device to rotate, so that the variable temperature black body 1 completely shields an optical observation view field 5 of the airborne thermal infrared hyperspectral imager, the target temperature of the variable temperature black body is set to be T, and after the temperature T is stable, the radiation calibration of the imager is completed; and finally, the rotating component 2 drives the composite calibration device to rotate, so that the spectrum calibration white board 4 completely shields the optical observation field of view 5 of the airborne thermal infrared hyperspectral imager, the spectrum calibration white board 4 is started, and after the temperature is stable, the spectrum calibration of the imager is completed. Through the three operations, synchronous spectrum and radiometric calibration of the airborne thermal infrared hyperspectral imager are completed, and the stored data is practical in subsequent quantitative processing.
Aiming at the load of the satellite-carried heat infrared hyperspectral imager, the working principle of the invention is consistent, and the only difference is that the composite calibration device is placed behind the last mirror of the main telescope of the imager and in front of the focal plane of the telescope, and the observation view field corresponding to the imager is also smaller than the observation view field of the hollowed-out part of the composite calibration device by the focal plane position. Generally speaking, in order to realize the observation effect of high spatial resolution, a satellite-borne thermal infrared hyperspectral imager is designed with a telescope primary mirror with a larger caliber, and the working principle avoids designing a composite calibration device with huge size.
The invention has the advantages that: the composite calibration device designed by the method can be arranged on the load of an airborne or satellite-borne thermal infrared hyperspectral imager, so that the on-orbit radiation and spectrum synchronous calibration of the load is realized, and the quantitative application degree of the load is improved. The composite calibration device designed by the method has the technical characteristics of simple design, flexible operation and convenient disassembly and assembly.
Description of the drawings:
FIG. 1 is a schematic diagram of a composite calibration device based on an airborne thermal infrared hyperspectral imager.
FIG. 2 is a schematic diagram of a composite calibration device based on a high-resolution satellite-borne heat infrared hyperspectral imager.
Fig. 3 is a schematic diagram of the composite calibration device for implementing the calibration function.
FIG. 4 is an example diagram of an airborne thermal infrared hyperspectral composite calibration system implemented based on the method.
FIG. 5 is a schematic view showing the design of V-shaped grooves on the surface of a temperature-variable black body in the composite calibration device.
Fig. 6 is a schematic diagram of a structure design of a spectrum calibration white board in the composite calibration device.
FIG. 7 is a graph of thermal infrared spectrum absorption characteristics of a polytetrafluoroethylene material of a spectrum calibration white board substrate.
The specific implementation mode is as follows:
according to the content of the invention, a set of composite calibration system for a machine-carried thermal infrared hyperspectral imager is constructed in the embodiment, as shown in the attached drawing 3, the system comprises a variable temperature black body 1, a rotating mechanism 2, a hollow structure 3, a spectrum calibration white board 4, an observation view field 5 of the machine-carried thermal infrared hyperspectral imager, a machine-carried thermal infrared hyperspectral imager body 6 and a target scene 7 to be detected. The main technical indexes of the machine-carried infrared hyperspectral imager body are as follows:
The composite calibration system is arranged in front of the airborne thermal infrared hyperspectral imager body 6, wherein the field angle corresponding to the hollow part of the hollow structure 3 is larger than the observation field 5 of the airborne thermal infrared hyperspectral imager. The specific parameters and design of each part of the composite scaling device are as follows:
the temperature setting range of the temperature changing blackbody 1 is 0-50 ℃, the effective radiation surface size of the blackbody is 65mm × 35mm, the shape of a blackbody cavity is a basis for ensuring that the infrared radiation of the blackbody has high efficiency, the radiation surface at the opening of the blackbody is made of red copper material with best heat conduction, the effective emissivity of the blackbody is further improved, the effective radiation surface at the bottom of the cavity is made of a V-shaped groove, the depth of the groove is 1mm, the opening angle is 60 degrees, the width between teeth is 1.15mm, the structure is shown in figure 5, 2 standard PT100 platinum resistance sensors are placed at the center of the radiation surface, 1 standard PT100 platinum resistance sensor is used for controlling temperature, the other 1 standard platinum resistance sensor is used for measuring temperature, and a thermoelectric heating and refrigerating component.
The rotating mechanism 2: the mechanism drives the composite calibration device to rotate to a specific position to realize three working modes of target detection, spectrum calibration and radiometric calibration of the thermal infrared hyperspectral imager, the controller hardware scheme integrating high performance and embedding integration is adopted, an execution component is a linear motor, and the core is to realize the driving of the calibration component at three fixed positions and auxiliary angle measurement.
Hollow-out structure 3: for the temperature-changing black body core calibration plate, only four sides of the part are metal frames, the middle part is hollow, and the hollowed-out part is larger than the thermal infrared hyperspectral imager field of view, namely when the motor drives the calibration device to enable the hollowed-out structure to be opposite to the thermal infrared hyperspectral imager, the target detection field of view can be seen through the structure.
Spectrum calibration white board 4: the spectrum calibration mechanism consists of a polytetrafluoroethylene substrate, a heating sheet and a shell, and the calibration substrate material is heated by the heating sheet. The spectrum calibration white board substrate material adopts high polymer material polytetrafluoroethylene, and the length, width and height of the size are 75mm, 35mm and 8 mm. And a pt100 temperature measuring sensor is arranged in the calibration board and is used for monitoring the temperature of the substrate white board in real time. The voltage of the heating plate is 24V, the current is 0.5A, and the length, width and height of the heating plate are respectively 75mm, 35mm and 1 mm. The shell mainly functions as a fixed calibration plate and a connecting rotating mechanism and has the functions of heat preservation and heat insulation. This structure is shown in fig. 6.
The mechanical structure of the composite calibration device designed in the example is shown in fig. 4, in actual project operation, the device can be installed in front of an optical telescope of an airborne thermal infrared hyperspectral imager, when a rotating mechanism drives the composite calibration device to rotate so that a variable-temperature black body is shielded in front of a field of view of the thermal infrared hyperspectral imager, the instrument is started to acquire data after the set temperature is stable to finish radiometric calibration, when the rotating mechanism drives a spectrum calibration white board to rotate so that a polytetrafluoroethylene white board is shielded in front of the field of view of the thermal infrared hyperspectral imager, a heating sheet is started, and after the temperature of the white board is stable, the instrument is started to acquire data to finish spectrum calibration.
The spectrum calibration white board in the example is made of polytetrafluoroethylene materials, and the thermal infrared characteristic spectrum absorption position of the spectrum calibration white board is 8.0-9.0 mu m. In actual project operation, polymer materials with other thermal infrared spectrum absorption characteristics can be selected as base materials of the spectrum calibration white board, so that different application requirements can be met. The following table lists some of the materials that can be used as substrates for spectrally scaled white boards:
| name of Material | Thermal infrared characteristic spectrum absorption position | Full width at half maximum of spectral absorption | Remarks for note |
| Polytetrafluoroethylene | 8.675μm | 200nm | / |
| Quartz sand | 8.626μm | 86nm | / |
| Polyvinyl chloride | 10.426μm | 210nm | / |
| Polybutadiene | 11.050μm | 25nm | / |
Claims (4)
1. The utility model provides a compound calibration device for thermal infrared high spectral imager, includes alternating temperature black body (1), slewing mechanism (2), hollow out construction (3), spectrum calibration blank (4) and extremely observation optics visual field (5) that correspond, its characterized in that:
aiming at the load of the heat-carrying infrared hyperspectral imager, the rotating mechanism (2) drives the composite calibration device to rotate, so that the thermal infrared radiation emitted by a target detection scene can be completely received by the heat-carrying infrared hyperspectral imager through the hollow part (3), and the instrument is in a target detection working mode; then the rotating mechanism (2) drives the composite calibration device to rotate, so that the variable temperature black body (1) completely shields an optical observation view field (5) of the heat-carrying infrared hyperspectral imager, the target temperature of the variable temperature black body (1) is set to be T, and after the temperature T is stable, the radiometric calibration of the imager is completed; and finally, the rotating mechanism (2) drives the composite calibration device to rotate, so that the spectrum calibration white board (4) completely shields the optical observation view field (5) of the airborne thermal infrared hyperspectral imager, the spectrum calibration white board (4) is started, and after the temperature is stable, the spectrum calibration of the imager is completed. After the three operations, synchronous spectrum and radiometric calibration of the thermal infrared hyperspectral imager are completed, and the stored data is practical in subsequent quantitative processing;
aiming at the load of the satellite-carried heat infrared hyperspectral imager, the composite calibration device can be placed behind the last mirror of the main telescope of the imager and in front of the instrument slit, and the observation view field corresponding to the imager is also smaller than the observation view field of the focal plane position on the hollow part of the composite calibration device.
2. The composite calibration device for the thermal infrared hyperspectral imager according to claim 1, wherein: the spectrum calibration white board (4) is composed of a polytetrafluoroethylene substrate, a heating sheet and a shell, a calibration substrate material is heated through the heating sheet, a pt100 temperature measuring sensor is placed in the calibration substrate board and used for monitoring the temperature of the substrate white board in real time, the voltage of the heating sheet is 24V, the current of the heating sheet is 0.5A, and the calibration board is fixed and connected with a rotating mechanism through the shell which is heat-insulating.
3. The composite calibration device for the thermal infrared hyperspectral imager as claimed in claim 1, characterized in that the temperature setting range of the temperature-variable black body (1) is 0-50 ℃, the effective radiation surface size of the black body is 65mm × 35mm, the shape of the black body cavity is such that the radiation surface at the opening is red copper, the effective radiation surface at the bottom of the cavity is a V-shaped groove structure, 2 standard PT100 platinum resistance sensors are placed at the center of the radiation surface, 1 standard PT100 platinum resistance sensor is used for temperature control, the other 1 standard PT100 platinum resistance sensor is used for temperature measurement, and a thermoelectric heating and refrigerating component is attached to the bottom of the cavity.
4. The composite calibration device for the thermal infrared hyperspectral imager according to claim 1, wherein: the execution component of the rotating mechanism (2) is a linear motor, and the driving of the calibration component at three fixed positions and the auxiliary angle measurement are realized.
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| CN202010384260.9A CN111442841A (en) | 2020-05-09 | 2020-05-09 | Composite calibration device for thermal infrared hyperspectral imager |
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| CN202010384260.9A CN111442841A (en) | 2020-05-09 | 2020-05-09 | Composite calibration device for thermal infrared hyperspectral imager |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113639880A (en) * | 2021-08-13 | 2021-11-12 | 中国科学院上海技术物理研究所 | Vacuum infrared calibration radiation response consistency method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120128126A1 (en) * | 2010-11-24 | 2012-05-24 | Fujifilm Corporation | Radiation phase image obtainment method and radiation phase image radiographic apparatus |
| CN104897282A (en) * | 2015-06-02 | 2015-09-09 | 中国科学院上海技术物理研究所 | Utility-type thermal infrared high-spectral imaging instrument load system |
| CN106840197A (en) * | 2016-12-21 | 2017-06-13 | 北京空间机电研究所 | Intersect scaling system in high precision on a kind of star |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120128126A1 (en) * | 2010-11-24 | 2012-05-24 | Fujifilm Corporation | Radiation phase image obtainment method and radiation phase image radiographic apparatus |
| CN104897282A (en) * | 2015-06-02 | 2015-09-09 | 中国科学院上海技术物理研究所 | Utility-type thermal infrared high-spectral imaging instrument load system |
| CN106840197A (en) * | 2016-12-21 | 2017-06-13 | 北京空间机电研究所 | Intersect scaling system in high precision on a kind of star |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113639880A (en) * | 2021-08-13 | 2021-11-12 | 中国科学院上海技术物理研究所 | Vacuum infrared calibration radiation response consistency method |
| CN113639880B (en) * | 2021-08-13 | 2023-09-12 | 中国科学院上海技术物理研究所 | Vacuum infrared calibration radiation response consistency method |
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