CN108981916A - A kind of collecting method based on multichannel filter radiometer - Google Patents
A kind of collecting method based on multichannel filter radiometer Download PDFInfo
- Publication number
- CN108981916A CN108981916A CN201810859571.9A CN201810859571A CN108981916A CN 108981916 A CN108981916 A CN 108981916A CN 201810859571 A CN201810859571 A CN 201810859571A CN 108981916 A CN108981916 A CN 108981916A
- Authority
- CN
- China
- Prior art keywords
- location hole
- optical filter
- hole
- optical
- electric signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000003287 optical effect Effects 0.000 claims abstract description 75
- 238000010276 construction Methods 0.000 claims abstract description 9
- 238000007689 inspection Methods 0.000 claims abstract description 4
- 238000011946 reduction process Methods 0.000 claims abstract description 3
- 230000008054 signal transmission Effects 0.000 claims abstract description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000012937 correction Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 238000013480 data collection Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 230000013011 mating Effects 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 230000005855 radiation Effects 0.000 abstract description 17
- 238000005259 measurement Methods 0.000 abstract description 10
- 230000008685 targeting Effects 0.000 abstract description 6
- 230000004044 response Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000003595 spectral effect Effects 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- DMFGNRRURHSENX-UHFFFAOYSA-N beryllium copper Chemical compound [Be].[Cu] DMFGNRRURHSENX-UHFFFAOYSA-N 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000005357 flat glass Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 208000004350 Strabismus Diseases 0.000 description 1
- 238000003483 aging Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004164 analytical calibration Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- 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
- G01J3/2803—Investigating the spectrum using photoelectric array detector
Abstract
The invention discloses a kind of collecting methods based on multichannel filter radiometer, successively follow the steps below: being switched over by optical filter of the channel switching construction to different-waveband；Inspection incident light is treated by optical path detecting structure and carries out light signal collection, converts optical signals to electric signal, and amplify to electric signal, noise reduction process；By treated, electric signal transmission is shown to the end PC or LCD.The present invention solves rail targeting device of the existing technology with the increase of use time, and the influence of the factors such as natural environment, instrument loss, the precision of the response of instrument is caused to be difficult to the problem of meeting the requirement of actual measurement, a kind of collecting method based on multichannel filter radiometer is provided, when the in-orbit radiometric calibration site of rail targeting device crosses calibration place and atmospheric radiation characteristic simultaneous observation with satellite when it is applied, acquisition obtains the amount of radiation that load receives, and realizes real time calibration load target.
Description
Technical field
The present invention relates to satellite optical radiation detection arts, and in particular to a kind of data based on multichannel filter radiometer
Acquisition method.
Background technique
Satellite optical remote sensing device in orbit during, influenced by factors such as space environment, component agings, it is corresponding
Characteristic can inevitably and routinely change.In Past 30 Years, both at home and abroad gradually and successful implementation is in-orbit
Calibration technology means after radiometric calibration site and two kinds of onboard process of transmitting, periodically to determine and correct remote sensor response characteristic
Variation.In-orbit radiometric calibration site crosses calibration place and the simultaneous observation of atmospheric radiation characteristic as basic means, by auxiliary using satellite
It helps mode to obtain the amount of radiation that load receives, realizes real time calibration load target.In-orbit radiometric calibration site mainly utilizes the earth
The stable ground object target of character in the wide area of surface realizes optical sensor radiation calibration.When satellite passes by, measure
Reflectivity for Growing Season and atmospheric transmittance parameter calculate the spectrum reached at satellite optical remote sensing device entrance pupil using radiative transfer model
Spoke brightness.Radiometric calibration site may be implemented absolute with the conditions such as remote sensor operating status (full aperture, full filed, full dynamic range)
Correction, it is possible to provide the calibration of optical sensor their entire life, and to optical sensor progress accuracy test and to some
Data processing algorithm model carries out verifying correctness.
Actinometer and field spectroradiometer are the capital equipments of In-flight calibration.Actinometer is mainly used to measure the sun
The instrument of spectral characteristic can be used for measuring the spokes such as the solar radiation, space scattering and ground return total solar radiation of different wave length
The amount of penetrating.By measuring the spectral characteristic of direct solar radiation and skylight angular scattering property, the optics that each wavelength can be obtained is thick
Degree, and calculate atmospheric turbidity.Field spectroradiometer mainly using solar radiation as lighting source, utilizes responsiveness scalar number
According to spectral radiance that is measurable and obtaining ground object target.Using diffusing reflection reference plate measurement of comparison, the reflection of target can get
Rate and spectral information.It, can by this to passing through the diffusing reflection of calibration, diffusing illumination spectral information and combining corresponding mechanical device
Obtain the direction the BRDF spectral information parameter of ground target.However, above equipment exists with the increase of use time, and from
The influence of the factors such as right environment, instrument loss, causes the precision of the response of instrument to be difficult to meet the requirement of actual measurement, thus right
The accuracy and reliability for testing measurement have an impact.It, can be in reality in order to determine the working condition, performance and inversion accuracy of instrument
The indoor collecting method for being directed to instrument is tested, to carry out follow-up work, the calibration in period is such as carried out to instrument, promotes instrument
Calibration precision.
Summary of the invention
The present invention solve rail targeting device of the existing technology with the increase of use time and natural environment,
The influence of the factors such as instrument loss, causes the precision of the response of instrument to be difficult to the problem of meeting the requirement of actual measurement, provides one
Collecting method of the kind based on multichannel filter radiometer, the in-orbit radiometric calibration site of rail targeting device is excessively fixed with satellite when applying
When marking place and atmospheric radiation characteristic simultaneous observation, acquisition obtains the amount of radiation that load receives, and realizes real time calibration load target.
The present invention is achieved through the following technical solutions:
A kind of collecting method based on multichannel filter radiometer, the data collection system include integrating sphere, product
Bulb separation includes input port, output port, which is characterized in that further includes channel switching construction and optical path detecting structure, in which: institute
Stating channel switching construction includes spoke brightness cylinder, fixed disc, the optical filter wheel, stepper motor set gradually, the fixed disc
End face on fixing axle is set, fixing axle is vertical with fixed disc end face and passes through the center of circle of fixed disc, and optical filter wheel is set
Being set to can rotate along the fixing axle, and the equidistant position of fixing axle described in distance is respectively set on the optical filter wheel end face
First positioning hole, second location hole, third location hole, the 4th location hole, the 5th location hole, the 6th location hole, the 7th location hole,
8th location hole, the 9th location hole, the tenth location hole, the tenth a positioning hole, the 12nd location hole, the first positioning hole,
Two location holes, third location hole, the 4th location hole, the 5th location hole, the 6th location hole, the 7th location hole, the 8th location hole,
Optical filter is respectively set in nine location holes, the tenth positioning hole, and reflecting mirror, the fixed disc is arranged in the tenth a positioning hole
0th location hole is set on end face, the 0th location hole is arranged to being equidistant apart from fixing axle with first positioning hole,
The output port of the spoke brightness cylinder both ends open, the light input end of the spoke brightness cylinder and integrating sphere connects, light output end with
0th location hole connects, and gear is arranged in the shaft of the stepper motor, gear is matched with the optical filter wheel；The light
Road detecting structure includes metallic shield cylinder, and metallic shield cylinder is arranged around the fixed disc, and metallic shield cylinder is along far from integral
The direction of ball extends, and photodetector, operational amplifier are arranged inside the metallic shield cylinder, and the photodetector setting exists
The photosensitive input terminal setting of one side of the optical filter wheel far from fixed disc, the photodetector is fixed in first positioning hole and the 0th
On the line in position hole, the output end of the photodetector and the non-inverting input terminal of operational amplifier are connected, and the method is successively
It follows the steps below:
A, it is switched over by optical filter of the channel switching construction to different-waveband, sets the angle between each optical filter
It is 30 °, using the stepper motor of 7.5 ° of stepping angles, rotating stepper motor makes the reflecting mirror on optical filter wheel be directed at incident light,
The zero point correction of stepper motor；
B, the mobile stepper motor of constant speed, every 4 switch to a cycle, change the position of an optical filter, make on optical filter wheel
The optical filter of each wave band be respectively aligned to incident light；
C, it treats inspection incident light in real time by optical path detecting structure and carries out light signal collection, convert optical signals to telecommunications
Number, and electric signal is amplified, noise reduction process；
D, by treated, electric signal transmission is shown to the end PC or LCD.
Further, a kind of collecting method based on multichannel filter radiometer passes through silicon photoelectricity in the step B
Diode pair incident light to be checked carries out light signal collection, converts optical signals to electric signal.
Further, a kind of collecting method based on multichannel filter radiometer is put by operation in the step B
Big device is amplified to and to electric signal.
Further, a kind of collecting method based on multichannel filter radiometer, in the step C, operation amplifier
The output end of device is output to the end PC by RS-232 line or LCD is shown.
Further, a kind of collecting method based on multichannel filter radiometer, which is characterized in that carry out the step
Temperature range when rapid A, step B is -20 DEG C~60 DEG C.
Compared with prior art, the present invention having the following advantages and benefits:
1, the in-orbit radiometric calibration site of In-flight calibration equipment of the present invention crosses the sight synchronous with atmospheric radiation characteristic of calibration place with satellite
When survey, acquisition obtains the amount of radiation that load receives, and realizes real time calibration load target.
2, the present invention solves the presence of rail targeting device with the increase of use time and natural environment, instrument are lost
Etc. factors influence, cause the precision of the response of instrument to be difficult to meet the requirement of actual measurement, thus to experiment measurement it is accurate
The problem of degree and reliability have an impact.
3, present invention may determine that the working condition of rail targeting device, performance and inversion accuracy, can be directed in laboratory
The data acquisition device of instrument such as carries out the calibration in period to carry out follow-up work to instrument, promotes the calibration essence of instrument
Degree.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is that the present invention implements structural schematic diagram；
Fig. 2 is the first implementation detail schematic diagram in the present invention；
Fig. 3 is the second implementation detail schematic diagram in the present invention
Fig. 4 is implementation flow chart of the present invention.
Label and corresponding parts title in attached drawing:
1- integrating sphere, 11- input port, 12- output port, 2- spoke brightness cylinder, 21- light input end, 22- field stop,
23- aperture diaphragm, 24- condenser lens, 25- light output end, 3- fixed disc, the 0th location hole of 31-, 32- fixing axle, 4- filter
Piece wheel, 41- first positioning hole, 42- second location hole, 43- third location hole, the 4th location hole of 44-, the 5th location hole of 45-,
The 6th location hole of 46-, the 7th location hole of 47-, the 8th location hole of 48-, the 9th location hole of 49-, the tenth location hole of 410-, 411-
Ten a positioning holes, the 12nd location hole of 412-, 5- stepper motor, 51- gear, 6- metallic shield cylinder, 7- photodetector, 8- fortune
Calculation amplifier, 9- bracket, 101- horizontal shifting platform, 102- vertically move platform.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation for explaining only the invention, are not made
For limitation of the invention.
Embodiment 1
As shown in Figures 1 to 4, the data acquisition device based on multichannel filter radiometer, including integrating sphere 1, integrating sphere 1
It further include channel switching construction and optical path detecting structure including input port 11, output port 12, in which: the channel switching
Structure includes spoke brightness cylinder 2, fixed disc 3, optical filter wheel 4, the stepper motor 5 set gradually, the end face of the fixed disc 3
Upper setting fixing axle 32, fixing axle 32 is vertical with 3 end face of fixed disc and passes through the center of circle of fixed disc 3, and optical filter wheel 4 is set
Being set to can rotate along the fixing axle 32, and on 4 end face of optical filter wheel the equidistant position of fixing axle 32 described in distance point
Not She Zhi first positioning hole 41, second location hole 42, third location hole 43, the 4th location hole 44, the 5th location hole the 45, the 6th it is fixed
Position hole 46, the 7th location hole 47, the 8th location hole 48, the 9th location hole 49, the tenth location hole 410, the tenth a positioning hole 411,
12nd location hole 412, the first positioning hole 41, second location hole 42, third location hole 43, the 4th location hole the 44, the 5th
Location hole 45, the 6th location hole 46, the 7th location hole 47, the 8th location hole 48, the 9th location hole 49, in the tenth location hole 410
Optical filter is respectively set, reflecting mirror is set in the tenth a positioning hole 411, setting the 0th is fixed on 3 end face of fixed disc
Position hole 31, the 0th location hole 31 are arranged to being equidistant apart from fixing axle 32 with first positioning hole 41, and the spoke is bright
Spend 2 both ends open of cylinder, the light input end 21 of the spoke brightness cylinder 2 connect with the output port 12 of integrating sphere 1, light output end 25 and
0th location hole 31 connects, and gear 51, gear 51 and the optical filter wheel 4 are arranged in the shaft of the stepper motor 5
Match；The optical path detecting structure includes metallic shield cylinder 6, and metallic shield cylinder 6 is arranged around the fixed disc 3, metallic shield
Cylinder 6 extends along the direction far from integrating sphere 1, and photodetector 7, operational amplifier 8, institute are arranged inside the metallic shield cylinder 6
It states photodetector 7 and one side of the optical filter wheel 4 far from fixed disc 3 is set, the photosensitive input terminal of the photodetector 7 is set
It sets on the line of first positioning hole 41 and the 0th location hole 31, output end and the operational amplifier 8 of the photodetector 7
Non-inverting input terminal connection.In order to promote luminous flux when optical path acquisition, based on the data acquisition device of multichannel filter radiometer,
Light input end 21, field stop 22, aperture diaphragm 23, condenser lens 24 and light output are set gradually inside the spoke brightness cylinder 2
End 25.As long as guaranteeing that the light that object point issues in visual field passes through aperture diaphragm 23 by field stop 22, aperture diaphragm 23, so that it may
Non-blockedly to pass through entire optical path.Condenser lens 24 is added after diaphragm again, can preferably receive energy.In order to promote light
The signal-to-noise ratio of electric explorer 7 improves stability, based on the data acquisition device of multichannel filter radiometer, the photodetection
Device 7 uses silicon photoelectric diode.Signal-to-noise ratio can be improved using the lesser silicon photoelectric diode of NEP, reduce noise.In order to enhance
Acquire the light intensity precision in optical path, based on the data acquisition device of multichannel filter radiometer, the field stop 22 and aperture
Diaphragm 23 is made of beallon material.Field stop 22 and aperture diaphragm 23 have selected the lesser beryllium copper of linear expansion coefficient
Processing effectively prevents incident light light caused by deforming as diaphragm from leading to measurement error.In order to further enhance acquisition data
Radiator, heat dissipation dress is arranged based on the data acquisition device of multichannel filter radiometer in precision in the metallic shield cylinder 6
It sets including radiating copper sheet and fan, radiating copper sheet is contacted with the photodetector 7, because BEAM SQUINT vertical direction angle is very
Greatly, it will have a direct impact on measured transmittance curve shape, cause curve shape severely deformed, the variation of environment temperature is right
Optical filter Transmissivity measurement curve also has an impact.When the temperature increases, central wavelength can drift about to long wave direction；Temperature reduces
When, central wavelength is drifted about to shortwave direction, and photodetector 7 directly contacts with radiating copper sheet, and increase connects with environment
Contacting surface product, then be blowed by fan, increase air circulation dynamics, so that temperature when detection is stablized in a certain temperature.
The influence of transmitance when environmental factor is to light collection in order to prevent, based on the data acquisition device of multichannel filter radiometer, institute
State first positioning hole 41, second location hole 42, third location hole 43, the 4th location hole 44, the 5th location hole 45, the 6th location hole
46, setting is close before and after the 7th location hole 47, the 8th location hole 48, the 9th location hole 49, the optical filter in the tenth location hole 410
Seal sheet glass.Setting sheet glass is sealed before and after optical filter, prevents the environmental factors such as dust and humidity to the shadow of its transmitance
It rings.Further, the data acquisition device based on multichannel filter radiometer, the stepper motor 5 is using eccentric step
Into motor.The rotation of optical filter is to carry out triggering driving by stepper motor 5, is advantageous in that using eccentric stepper motor and is only used
Small torque can be achieved with the rotation of optical filter wheel 4, and can reduce the running accuracy of motor by increasing rotation step pitch.In order to
The convenient adjusting to incident light position, based on the data acquisition device of multichannel filter radiometer, 6 lower section of metallic shield cylinder
Bracket 9 is set, mobile platform is set below bracket 9, mobile platform includes horizontal shifting platform 101 and vertically moves platform 102.
When there is deviation in the position of the output port 12 of integrating sphere 1 and radiant light cylinder, correction can be adjusted by mobile platform.
The present invention realizes the mistake that the optical filter switching of different wave length is applied to amount of radiation acquisition by channel switching construction
The filter plate alignment of different-waveband is acquired in optical path according to required wavelength control stepper motor 5, while passing through optical path by Cheng Zhong
Detecting structure converts optical signals to electric signal output, completes the collection process of Radiance data, technical staff can pass through, adopt
Collection obtains the amount of radiation that load receives, and realizes real time calibration load target.
Embodiment 2
On the basis of embodiment 1, as shown in figure 3, the first positioning hole 41, second location hole 42, third location hole
43, the 4th location hole 44, the 5th location hole 45, the 6th location hole 46, the 7th location hole 47, the positioning of the 8th location hole the 48, the 9th
Optical filter is respectively set in hole 49, the tenth location hole 410, setting reflecting mirror in the tenth a positioning hole 411, optical filter wheel 4,
Including 10 tablet filters, 1 empty piece and 1 reflecting optics, hollow is used to measure background, and reflecting mirror is used for optical filter wheel 4
Zero-point positioning.Angle between optical filter each in this way is 30 °, drives optical filter using the stepper motor 5 of 7.5 ° of stepping angles
4 rotation of wheel, for motor using P542-M481U-G11L82, basic indexes and parameters are as shown in table 1.
1 stepper motor basic parameter of table
| Step angle | 7.5° |
| Keep torque | 100Ncm |
| Voltage rating | 5VDC |
| Rated current | 550mA |
| Every phase of impedance | 9.1Ω |
Its driving circuit is simple, is the prior art, can be driven using Darlington transistor ULN2003.
The optical filtering wave band of 10 tablet filters is as shown in table 2
The optical filtering wave band of 2 optical filter of table
10 optical filters are placed sequentially on optical filter runner, determine the relative position of optical filters at different levels, in spoke brightness cylinder 2
There are field stop 22 and aperture diaphragm 23 in portion.The rotation of optical filter is to carry out triggering driving by eccentric stepper motor, such as Fig. 3 institute
Show, this have the advantage that only can be achieved with runner rotation with small torque, and electricity can be reduced by increasing rotation step pitch
The preposition window of the running accuracy of machine, optical filter is sealed using thin glass sheet, prevents the environmental factors pair such as dust and humidity
The influence of its transmitance.Field stop 22 and aperture diaphragm 23 have selected the lesser beryllium copper processing of linear expansion coefficient.Photodetection
Device 7 combines radiating copper sheet and fan to freeze.The filter plate and spoke that stepper motor 5 rotates the wave band are controlled according to wave band to be measured
Brightness cylinder 2 is aligned, by band reception remaining after 7 detection filtering of photodetector to optical information be converted to power information, then pass through
It crosses after operational amplifier 8 amplifies processing, the end PC is output to by RS-232 line or LCD is shown, carries out subsequent calibrations processing.
Photodetector 7 is responsible for the measurement of multiple wave bands, and there are larger differences for the radiation energy of different-waveband, and dynamic range is larger, therefore
Operational amplifier 8 is increased to amplify small signal in band.The bias current of operational amplifier 8 is believed than the minimum detected
Number electric current is much smaller, therefore to use the FET input amplifier of low noise.Operational amplifier 8 is amplified using the electrometer of ADI
Device ADA4530, it is as shown in the table for basic parameter.And ADI provides detailed application circuit solution (referring to ADA4530-
1R-EBZ User Guide UG-865), or even the placement-and-routing including circuit board.
The performance parameter of 3 operational amplifier of table
| Parameter | ADA4530 |
| Bigoted electric current | <1fA(20fA max) |
| Offset current | <1fA(20fA max) |
| Bias voltage | 8uV |
| Input voltage noise | 80nV/Hz |
| Input current noise | 0.07fA/Hz |
| Power supply rejection ratio | 150dB |
| Operating voltage | 4.5~16V (± 2.5~± 10V) |
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not used to limit originally practical the foregoing is merely a specific embodiment of the invention
Novel protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all
It is included within protection scope of the present invention.
Claims (5)
1. a kind of collecting method based on multichannel filter radiometer, which is characterized in that the data collection system includes
Integrating sphere (1), integrating sphere (1) include input port (11), output port (12), further include channel switching construction and optical path detection
Structure, in which: the channel switching construction include the spoke brightness cylinder (2) set gradually, fixed disc (3), optical filter wheel (4),
Fixing axle (32) are arranged on the end face of the fixed disc (3) in stepper motor (5), fixing axle (32) and fixed disc (3) end face
The center of circle that is vertical and passing through fixed disc (3), optical filter wheel (4) are arranged to rotate along the fixing axle (32), the filter
First positioning hole (41), second fixed is respectively set in fixing axle (32) equidistant position described in distance on mating plate wheel (4) end face
Position hole (42), third location hole (43), the 4th location hole (44), the 5th location hole (45), the 6th location hole (46), the 7th positioning
Hole (47), the 8th location hole (48), the 9th location hole (49), the tenth location hole (410), the tenth a positioning hole (411), the 12nd
Location hole (412), the first positioning hole (41), second location hole (42), third location hole (43), the 4th location hole (44),
5th location hole (45), the 6th location hole (46), the 7th location hole (47), the 8th location hole (48), the 9th location hole (49),
Optical filter is respectively set in ten location holes (410), reflecting mirror, the fixed disc are set in the tenth a positioning hole (411)
(3) the 0th location hole (31) is set on end face, and the 0th location hole (31) is arranged to solid with first positioning hole (41) distance
Dead axle (32) are equidistant, spoke brightness cylinder (2) both ends open, the light input end (21) and product of the spoke brightness cylinder (2)
The output port (12) of bulb separation (1) connects, and light output end (25) is connect with the 0th location hole (31), the stepper motor
(5) gear (51) are set in shaft, gear (51) is matched with the optical filter wheel (4)；The optical path detecting structure includes gold
Belong to shielding cylinder (6), metallic shield cylinder (6) is arranged around the fixed disc (3), and metallic shield cylinder (6) is along far from integrating sphere (1)
Direction extend, photodetector (7), operational amplifier (8), the photodetection are set inside the metallic shield cylinder (6)
Device (7) setting is in the one side of optical filter wheel (4) far from fixed disc (3), the photosensitive input terminal setting of the photodetector (7)
On the line of first positioning hole (41) and the 0th location hole (31), the output end and operation amplifier of the photodetector (7)
The non-inverting input terminal of device (8) connects, and the method successively follows the steps below:
A, switched over by optical filter of the channel switching construction to different-waveband, set angle between each optical filter as
30 °, using the stepper motor of 7.5 ° of stepping angles, rotating stepper motor makes the reflecting mirror on optical filter wheel be directed at incident light, stepping
The zero point correction of motor；
B, the mobile stepper motor of constant speed, every 4 switch to a cycle, change the position of an optical filter, make each on optical filter wheel
The optical filter of a wave band is respectively aligned to incident light；
C, it treats inspection incident light in real time by optical path detecting structure and carries out light signal collection, convert optical signals to electric signal, and
Electric signal is amplified, noise reduction process；
D, by treated, electric signal transmission is shown to the end PC or LCD.
2. a kind of collecting method based on multichannel filter radiometer according to claim 1, which is characterized in that institute
It states in step B and inspection incident light progress light signal collection is treated by silicon photoelectric diode, convert optical signals to electric signal.
3. a kind of collecting method based on multichannel filter radiometer according to claim 1, which is characterized in that institute
It states in step B and is amplified by operational amplifier to and to electric signal.
4. a kind of collecting method based on multichannel filter radiometer according to claim 1, which is characterized in that institute
It states in step C, the output end of operational amplifier is output to the end PC by RS-232 line or LCD is shown.
5. a kind of collecting method based on multichannel filter radiometer according to claim 1, which is characterized in that into
Temperature range when the row step A, step B is -20 DEG C~60 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810859571.9A CN108981916B (en) | 2018-08-01 | 2018-08-01 | Data acquisition method based on multi-channel filtering radiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810859571.9A CN108981916B (en) | 2018-08-01 | 2018-08-01 | Data acquisition method based on multi-channel filtering radiometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108981916A true CN108981916A (en) | 2018-12-11 |
| CN108981916B CN108981916B (en) | 2020-07-07 |
Family
ID=64550542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810859571.9A Active CN108981916B (en) | 2018-08-01 | 2018-08-01 | Data acquisition method based on multi-channel filtering radiometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108981916B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900655A (en) * | 2019-04-09 | 2019-06-18 | 合肥九天卫星科技有限公司 | Optical thickness spectromonitor for satellite calibration |
| CN109946235A (en) * | 2019-02-26 | 2019-06-28 | 南京信息工程大学 | The multi layer cloud inversion method of wind and cloud 4A meteorological satellite Multichannel Scan Imagery Radiometer |
| CN113945279A (en) * | 2021-09-14 | 2022-01-18 | 中国科学院上海技术物理研究所 | Testing method for solar diffuse reflection calibration aperture factor of space optical remote sensing instrument |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102253594A (en) * | 2011-06-21 | 2011-11-23 | 北京凌云光视数字图像技术有限公司 | Platform for testing performance of camera based on EMVA1288 standard |
| WO2013082512A1 (en) * | 2011-11-30 | 2013-06-06 | Labsphere, Inc. | Apparatus and method for mobile device camera testing |
| CN103674485A (en) * | 2013-12-25 | 2014-03-26 | 中国电子科技集团公司第四十一研究所 | Photoelectric detector parameter testing fixture and testing method |
| CN207215284U (en) * | 2017-09-19 | 2018-04-10 | 上海濠润电子科技有限公司 | A kind of optical filtering detection system |
| CN108168696A (en) * | 2018-01-29 | 2018-06-15 | 厦门市计量检定测试院 | The calibrating installation and calibration method of a kind of spectral radiometer |
-
2018
- 2018-08-01 CN CN201810859571.9A patent/CN108981916B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102253594A (en) * | 2011-06-21 | 2011-11-23 | 北京凌云光视数字图像技术有限公司 | Platform for testing performance of camera based on EMVA1288 standard |
| WO2013082512A1 (en) * | 2011-11-30 | 2013-06-06 | Labsphere, Inc. | Apparatus and method for mobile device camera testing |
| CN103674485A (en) * | 2013-12-25 | 2014-03-26 | 中国电子科技集团公司第四十一研究所 | Photoelectric detector parameter testing fixture and testing method |
| CN207215284U (en) * | 2017-09-19 | 2018-04-10 | 上海濠润电子科技有限公司 | A kind of optical filtering detection system |
| CN108168696A (en) * | 2018-01-29 | 2018-06-15 | 厦门市计量检定测试院 | The calibrating installation and calibration method of a kind of spectral radiometer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109946235A (en) * | 2019-02-26 | 2019-06-28 | 南京信息工程大学 | The multi layer cloud inversion method of wind and cloud 4A meteorological satellite Multichannel Scan Imagery Radiometer |
| CN109946235B (en) * | 2019-02-26 | 2021-11-02 | 南京信息工程大学 | Multilayer cloud inversion method of wind cloud 4A meteorological satellite multichannel scanning imaging radiometer |
| CN109900655A (en) * | 2019-04-09 | 2019-06-18 | 合肥九天卫星科技有限公司 | Optical thickness spectromonitor for satellite calibration |
| CN113945279A (en) * | 2021-09-14 | 2022-01-18 | 中国科学院上海技术物理研究所 | Testing method for solar diffuse reflection calibration aperture factor of space optical remote sensing instrument |
| CN113945279B (en) * | 2021-09-14 | 2023-09-12 | 中国科学院上海技术物理研究所 | Test method for solar diffuse reflection calibration aperture factor of space optical remote sensing instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108981916B (en) | 2020-07-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Seckmeyer et al. | Cosine error correction of spectral UV-irradiances | |
| CN108981916A (en) | A kind of collecting method based on multichannel filter radiometer | |
| CN106990074B (en) | Near-infrared multi-laser-band whole-layer atmosphere transmittance and water vapor total amount measuring instrument | |
| CN102735632B (en) | Apparatus and method for measuring horizontal distribution and near surface vertical distribution of atmosphere pollution gas by using sky diffusion light | |
| CN1928533B (en) | Outdoor high optical spectrum BRDF automatic detection method | |
| CN101504314B (en) | Atmosphere ultraviolet radiation flux measuring apparatus and method | |
| CN101782428B (en) | Spectrum self-correction photometer and measuring method thereof | |
| CN102486404A (en) | Ultraviolet low-light stellar magnitude simulation and stellar magnitude calibration system | |
| CN101762325A (en) | Method and device for measuring solar subdivided spectral irradiance with high precision | |
| CN105444881A (en) | Self-correcting atmosphere-earth surface optical radiation characteristic observer | |
| CN112985775B (en) | Light spot tracker optical axis calibration device based on precise angle measurement | |
| CN106950183A (en) | A kind of portable soil nutrient detection means based on spectral technique | |
| CN103256976A (en) | Low-temperature absolute radiometer absolute spectral responsivity calibration method and experimental apparatus | |
| WO1988006718A1 (en) | Atmospheric optical calibration system | |
| CN201368770Y (en) | Spectral self-correcting photometer | |
| CN100414270C (en) | Satellite full optical-path radiation beaconing method | |
| US6005249A (en) | Cosine corrected optical pathway of a spectral radiometer | |
| CN208366466U (en) | Data acquisition device based on multichannel filter radiometer | |
| CN201983798U (en) | Ultraviolet dim light magnitude simulation and calibration system | |
| CN208366465U (en) | Multi-channel filter radiator for the detection system that filters | |
| CN106872030A (en) | Can be used for the visible short infrared excess spectral irradiance instrument of long-term automatic Observation | |
| CN101846528A (en) | Detection method for capture capability of photoelectric tracking equipment to target with low contrast | |
| CN104807546B (en) | A kind of measurement apparatus for target scattering and reflected polarization state research | |
| CN201983859U (en) | On-line Raman spectrometer calibration device | |
| CN104931425A (en) | Chlorophyll content detection and control method with temperature and humidity compensation function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |