CN105973468A - Visible near-infrared band high precision solar irradiance meter - Google Patents
Visible near-infrared band high precision solar irradiance meter Download PDFInfo
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- CN105973468A CN105973468A CN201610297422.9A CN201610297422A CN105973468A CN 105973468 A CN105973468 A CN 105973468A CN 201610297422 A CN201610297422 A CN 201610297422A CN 105973468 A CN105973468 A CN 105973468A
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- 230000003287 optical effect Effects 0.000 claims abstract description 37
- 239000006185 dispersion Substances 0.000 claims abstract description 27
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 239000000523 sample Substances 0.000 claims description 26
- 238000005286 illumination Methods 0.000 claims description 20
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 15
- 230000003595 spectral effect Effects 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 239000004411 aluminium Substances 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 230000004313 glare Effects 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 230000011514 reflex Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims 1
- 239000011810 insulating material Substances 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 9
- 230000011218 segmentation Effects 0.000 abstract 2
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- 230000008447 perception Effects 0.000 abstract 1
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Classifications
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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
- G01J3/2803—Investigating the spectrum using photoelectric array detector
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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
- G01J3/02—Details
- G01J3/0286—Constructional arrangements for compensating for fluctuations caused by temperature, humidity or pressure, or using cooling or temperature stabilization of parts of the device; Controlling the atmosphere inside a spectrometer, e.g. vacuum
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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
- G01J3/12—Generating the spectrum; Monochromators
- G01J3/14—Generating the spectrum; Monochromators using refracting elements, e.g. prisms
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- General Physics & Mathematics (AREA)
- Spectrometry And Color Measurement (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The invention discloses a visible near-infrared band high precision solar irradiance meter including a control system and a sunlight spectrum segmentation detection unit. The sunlight spectrum segmentation detection unit is composed of an entrance slit, a spectrum reshaping optical filter, an incident light reflector, a curved-face prism, a chromatic dispersion reflector and an array photoelectric detector. According to the invention, the visible near-infrared band high precision solar irradiance meter integrates functions of automatic sun tracking, environment perception, automatic control and the like and realizes full automatic measurement of solar irradiance.
Description
Technical field
The present invention relates to optical radiation measurement device field, a kind of visible near-infrared wave band high-precision sun irradiance
Instrument.
Background technology
Solar spectrum irradiancy is the important optical parametric of the scientific domains such as weather, meteorological research, remote sensing application.The thinnest
Spectral high-acruracy survey solar irradiance can provide for scientific research and application and effectively observe data.
Subband solar spectrum irradiancy is only measured in conventional optical filter light splitting；Grating beam splitting is used to there is spectroscopical effeciency
The problems such as low, second order spectrum；Additionally beam splitter reliability is low, lack the phenomenon such as temperature control, instability also reduces certainty of measurement.
Summary of the invention it is an object of the invention to provide a kind of visible near-infrared wave band high-precision sun irradiance instrument, to solve
The problem that certainly prior art solar radiation illumination photometry measurement device precision is low.
In order to achieve the above object, the technical solution adopted in the present invention is:
Visible near-infrared wave band high-precision sun irradiance instrument, including the control system being integrated in same Instrument shell, the sun
Light open score probe unit, it is characterised in that: described sunlight open score probe unit includes the entrance slit receiving sunlight, incident
Slit rear is disposed with the incident illumination reflecting mirror of light spectrum reshaping optical filter, plane mirror structure, incident illumination reflecting mirror
Being provided with curved surface prism on reflected light path, described curved surface prism is concave spherical surface towards the front surface of incident illumination reflecting mirror, curved surface rib
Mirror rear surface is convex spherical, and curved surface prism rear surface is coated with aluminium mirror coating, and sunlight passes through entrance slit, through light spectrum reshaping
It is incident to incident illumination reflecting mirror after optical filter optical filtering shaping, then reflexes to curved surface prism front surface through incident illumination reflecting mirror, bent
Face prism front surface is to forming dispersion spectrum after incident sunlight dispersion, and dispersion spectrum is converged to by curved surface prism front surface
Curved surface prism rear surface, from curved surface prism outgoing after the aluminium mirror coating of curved surface prism rear surface reflects；The outgoing of curved surface prism
It is provided with the dispersed light reflecting mirror of plane mirror structure in light path, the reflected light path of dispersed light reflecting mirror is provided with array light
Electric explorer, described array photodetectors access control system, and array photodetectors are positioned at the focal plane of curved surface prism
Position, the dispersion spectrum of curved surface prism outgoing, after dispersed light reflecting mirror reflects, is incident to array photodetectors, array photoelectric
Detector gathers dispersion spectrum signal and dispersion spectrum signal is sent to control system.
Described visible near-infrared wave band high-precision sun irradiance instrument, it is characterised in that: described sunlight open score detects
In unit, the width of entrance slit, length match with array photodetectors pixel dimension, and array photodetectors is corresponding
Dispersion spectrum scope 350nm 1100nm, spectral resolution < 10nm.
Described visible near-infrared wave band high-precision sun irradiance instrument, it is characterised in that: described sunlight open score detects
In unit, by light spectrum reshaping optical filter, it is achieved the full wave light intensity in detector focal plane is close, and is effectively improved low-light (level) ripple
The signal to noise ratio of section.
Described visible near-infrared wave band high-precision sun irradiance instrument, it is characterised in that: described sunlight open score detects
In unit, incident illumination reflecting mirror, dispersed light reflecting mirror are plane mirror structure, it is achieved that turning back of light path, effectively reduce
The overall volume of instrument, and conveniently debug.
Described visible near-infrared wave band high-precision sun irradiance instrument, it is characterised in that: described sunlight open score detects
In unit, curved surface prism uses active thermoelectric refrigerator to control temperature, and described control system controls to be connected with thermoelectric refrigerator,
Curved surface prism is fixed in metal shell, and metal shell devises transparent glass window and ensures incidence and the emitting light path of curved surface prism
Unaffected, one end of thermoelectric refrigerator contacts with metal shell, and the outside of metal shell utilizes insulation material to reduce and environment
The heat exchange of air, the other end of thermoelectric refrigerator and Instrument shell contacts baseplate, Instrument shell base plate external machined heat radiation
Groove increases the area with contacting external air, the temperature of the real-time measuring prism of precision thermometer, when curved surface prism temperature exceedes
During set point, control system controls thermoelectric refrigerator work.
Described visible near-infrared wave band high-precision sun irradiance instrument, it is characterised in that: described Instrument shell is integrated with
Full-automatic light stopper, automatically opens up when measuring sunlight, shuts out the light and pass through during closedown, the dark signal of measuring instrument.
Described visible near-infrared wave band high-precision sun irradiance instrument, it is characterised in that: also include being integrated in instrument shell
The diaphragm for eliminating stray light cylinder of body front end, the four-quadrant sun tracker being integrated in Instrument shell, automatically controlled two-dimensional rotary platform, described
Instrument shell is placed on two-dimensional rotary platform, the optical axis of four-quadrant sun tracker and entrance slit in sunlight open score probe unit
Optical axis is parallel, and four-quadrant sun tracker access control system, by two-dimensional rotary platform drive sunlight open score probe unit, four
Quadrant sun tracker rotates in two dimensional surface, and described control system controls to be connected with two-dimensional rotary platform；The described veiling glare light that disappears
Door screen cylinder is arranged on entrance slit front in sunlight open score probe unit with optical axis, and sunlight is incident to after diaphragm for eliminating stray light cylinder
Entrance slit.
The optical path of the present invention i.e. sunlight open score probe unit mainly by entrance slit, light spectrum reshaping optical filter, enter
Penetrate light reflection mirror, curved surface prism, chromatograph light reflection mirror, array photodetectors composition.Wherein, entrance slit limits the incident sun
Light, the clear light size of entrance slit and the pixel dimension of linear array detector match the width of entrance slit with length with array light
Electric explorer pixel dimension matches, measure spectrum scope 350nm 1100nm, spectral resolution < 10nm；Curved surface prism is to entering
Penetrate dispersion and the convergence of sunlight, the array photodetectors be in focal plane position is formed continuous print dispersion spectrum；Battle array
The strength information of row photodetector detection dispersion spectrum, exports the signal of telecommunication；Wave band shaping optical filter is used for reducing high irradiance
The transmitance of wave band also ensures the high permeability of low-light (level) wave band, it is achieved the corresponding detector pixel of each spectral coverage exports at detector
In linear dynamic range；Reflecting mirror is used for light path of turning back, and reduces the volume of instrument.
The present invention uses curved surface prism as beam splitter.The front surface of curved surface prism is concave spherical surface, and rear surface is convex ball
Face, rear surface aluminizes reflectance coating, and optical element just can realize the dispersion to sunlight and spectrum is assembled, and only produces
First-order spectrum, spectroscopical effeciency is high, and veiling glare is low.
In the present invention, array photodetectors is positioned at the focal plane position of curved surface prism, converges in photoelectricity after Taiyang channel light splitting
On diode pixel, it is achieved detect while visible near-infrared wave band sunlight subdivided spectral.
In the present invention, curved surface prism uses active thermoelectric refrigerator to control temperature, it is achieved the dispersion spectrum of curved surface prism
The perseverance of wave band stability and transmitance is steady.Curved surface prism is fixed in metal shell, and metal shell devises transparent glass window and protects
Incidence and the emitting light path of card prism are unaffected.Heat exchange is passed through in thermoelectric refrigerator, controls the temperature of prism.Curved surface prism gold
The outside belonging to housing utilizes insulation material to reduce the heat exchange with surrounding air, is conducive to being maintained at whole prism metal shell
Equilibrium temperature.Housing Base external process radiating groove increases the area with contacting external air, improves the heat with external environment condition
Exchange efficiency.Curved surface prism outer surface is integrated with the temperature of the real-time measuring prism of precision thermometer, when prism temperature exceedes setting
During scope, thermoelectric refrigerator is started working.
In the present invention, having light spectrum reshaping optical filter after entrance slit, this optical filter reduces the transmitance of high irradiance wave band,
Ensureing the high permeability of low-light (level) wave band, the solar spectrum passed through is more smooth, after curved surface prism light splitting is converged, and each spectrum ripple
The light strong consistency of section improves, by arranging the time of integration of detector, it is ensured that high illumination wave band correspondence detector pixel defeated
Going out unsaturation, the output signal of low-light (level) wave band correspondence pixel strengthens, and is effectively improved full wave signal to noise ratio.
In the present invention, input path between entrance slit and curved surface prism and curved surface prism and array photodetectors it
Between reflecting mirror has been designed all on dispersed light road, it is achieved that turning back of light path, effectively reduce the volume and weight of instrument, improve
Portability.
In the present invention, devising automatic gate before entrance slit, automatic gate is in normally off, substantially reduces sunlight
Irradiate the time of optical element, reduce the decay of instrument.The dark signal of measuring instrument when shutter is closed, shutter is beaten
Incident sunlight signal is measured after opening.
The present invention devises automatically controlled two-dimensional rotary platform, and is integrated with four-quadrant sun tracker, by four-quadrant too
The feedback control dimensional turntable motion of sun tracker realizes the high precision tracking to the sun.
The present invention utilizes the curved surface prism of high stable to assemble incident sunlight dispersion and spectrum, is in focal plane position
Array photodetectors measure spectrum signal, detecting light spectrum scope 350nm-1100nm, spectral resolution is less than 10nm.Instrument is surveyed
Measure light path design light spectrum reshaping optical filter, dispersing prism accurate temperature controller, dark signal bales catch to remove, improve the letter of apparatus measures
Make an uproar ratio, use reflecting mirror to turn back light path, reduce the volume of instrument, and improve certainty of measurement.This visible near-infrared wave band is high
Precision solar irradiance instrument is integrated with automatic sun tracking, environment sensing, the function such as automatically controls, all automatic measurement solar spectrum
Irradiance.
Accompanying drawing explanation
Fig. 1 is visible near-infrared wave band high-precision sun irradiance instrument pie graph.
Fig. 2 solar irradiance optical path figure.
Detailed description of the invention
As shown in Figure 1 and Figure 2, it is seen that near infrared band high-precision sun irradiance instrument, including being integrated in same Instrument shell
In control system, sunlight open score probe unit 3, sunlight open score probe unit 3 include receive sunlight entrance slit
31, entrance slit 31 rear is disposed with the incident illumination reflecting mirror 33 of light spectrum reshaping optical filter 32, plane mirror structure, enters
Penetrate and on the reflected light path of light reflection mirror 33, be provided with curved surface prism 34, curved surface prism towards 34 to the front surface of incident illumination reflecting mirror 33
For concave spherical surface, curved surface prism 34 rear surface is convex spherical, and curved surface prism 34 rear surface is coated with aluminium mirror coating, sunlight pass through into
Penetrate slit 31, after light spectrum reshaping optical filter 32 filters shaping, be incident to incident illumination reflecting mirror 33, then reflect through incident illumination
Mirror 33 reflexes to curved surface prism 34 front surface, and incident sunlight is by occurring dispersion after curved surface prism 34 front surface, and arrives
Curved surface prism 34 rear surface, continues dispersion after the aluminium mirror coating of curved surface prism 34 rear surface reflects, until curved surface prism 34
Front surface, simultaneously the monochromatic light after the aluminium mirror coating reflection from curved surface prism 34 rear surface converges, by curved surface prism 34
Front surface outgoing；The dispersed light reflecting mirror 35 of plane mirror structure, dispersed light it is provided with on the emitting light path of curved surface prism 34
Array photodetectors 36, array photodetectors 36 access control system, and battle array it is provided with on the reflected light path of reflecting mirror 35
Row photodetector 36 is positioned at the focal plane position of curved surface prism 34, and the dispersion spectrum of curved surface prism 34 outgoing reflects through dispersed light
After mirror 35 reflection, being incident to array photodetectors 36, array photodetectors 36 gathers dispersion spectrum signal and by dispersed light
Spectrum signal is sent to control system.
, in sunlight open score probe unit 3, the width of entrance slit 31, length and array photodetectors 36 pixel chi
Very little match, the dispersion spectrum scope 350nm 1100nm, spectral resolution < 10nm of array photodetectors 36 correspondence.
In sunlight open score probe unit 3, by light spectrum reshaping optical filter 32, it is achieved the full wave light in detector focal plane
It is close by force, is effectively improved the signal to noise ratio of low-light (level) wave band.
In sunlight open score probe unit 3, incident illumination reflecting mirror 33, dispersed light reflecting mirror 35 are plane mirror knot
Structure, it is achieved that turning back of light path, effectively reduces the overall volume of instrument, and conveniently debugs.
In sunlight open score probe unit 3, curved surface prism 34 uses active thermoelectric refrigerator to control temperature, control system
Controlling to be connected with thermoelectric refrigerator, curved surface prism 34 is fixed in metal shell, and metal shell devises transparent glass window and ensures
Incidence and the emitting light path of curved surface prism are unaffected, and one end of thermoelectric refrigerator contacts with metal shell, outside metal shell
Portion utilizes insulation material to reduce the heat exchange with surrounding air, the other end of thermoelectric refrigerator and Instrument shell contacts baseplate, instrument
Device Housing Base external process radiating groove increases the area with contacting external air, the real-time measuring prism of precision thermometer
Temperature, when curved surface prism temperature exceedes set point, control system controls thermoelectric refrigerator work.
Sunlight open score probe unit 3 is integrated with full-automatic light stopper, automatically opens up, block during closedown when measuring sunlight
Light passes through, the dark signal of measuring instrument.
Visible near-infrared wave band high-precision sun irradiance instrument also includes diaphragm for eliminating stray light cylinder 1, four-quadrant sun tracker
2, automatically controlled two-dimensional rotary platform 4, diaphragm for eliminating stray light cylinder 1, sunlight open score probe unit 3, four-quadrant sun tracker 2 are integrated in
It is placed in together on two-dimensional rotary platform 4, the optical axis of four-quadrant sun tracker 2 and entrance slit in sunlight open score probe unit 3
31 optical axises are parallel, and four-quadrant sun tracker 2 access control system, two-dimensional rotary platform 4 drive the detection of sunlight open score single
Unit 3, four-quadrant sun tracker 2 rotate in two dimensional surface, and control system controls to be connected with two-dimensional rotary platform 4；Disappear veiling glare light
Door screen cylinder 1 is arranged on entrance slit 31 front in sunlight open score probe unit 3 with optical axis, and sunlight is after diaphragm for eliminating stray light cylinder 1
It is incident to entrance slit 31.
As it is shown in figure 1, in the present invention, control system includes master controller 13,4 quadrant detector circuit 5, array photoelectric
Detector circuit 6, temperature control circuit 7, two-dimensional rotary circuit 8, power supply interface 9, environment sensing module interface 10, local and remote control
Interface 11 processed.
In sunlight open score probe unit 3, array photodetectors 36 outfan inputs with array photodetectors circuit 6
End connects, and array photodetectors circuit 6 outfan accesses master controller 13；Thermoelectric refrigerator input is defeated with temperature control circuit 7
Going out end to connect, temperature control circuit 7 input accesses master controller 13.
Four-quadrant sun tracker 2 outfan is connected with 4 quadrant detector circuit 5 input, 4 quadrant detector circuit
5 outfans access master controller 13.
Two-dimensional rotary platform 4 input is connected with two-dimensional rotary circuit 8 outfan, and two-dimensional rotary circuit 8 input accesses main
Controller 13.
Power supply interface 9 accesses master controller 13, and external power source supplies power to master controller 13 by power supply interface 9.
Environment sensing module interface 10 accesses master controller 13, and external environment condition sensor passes through environment sensing module interface 10
Access master controller 13.
Local and remote control interface 11 accesses master controller 13, and master controller 13 is by local and remote control interface 11
It is connected with far-end upper machine communication.
The present invention includes diaphragm for eliminating stray light cylinder 1, solar tracking unit 2, sunlight open score probe unit 3, two-dimensional rotary platform
4.Instrument photodetecting part is fixed on two-dimensional rotary platform 4, and wherein four-quadrant sun tracker 2 is single with the detection of sunlight open score
Unit's optical axis is parallel, is jointly integrated in Instrument shell.The electric control system controls system of instrument works automatically, and system devises power supply
Interface 9, can use civil power or solar panel to power, environment sensing module interface 10, temperature when being used for collecting measurement, wet
Degree, rainwater, air pressure etc. measure auxiliary information, and when rainy, instrument is automatically stopped work, and by the most right for optical detection diaphragm cylinder
Ground state, it is to avoid rainwater enters diaphragm cylinder, and reduces the pollution of dust.Local and remote control interface 11, for host computer and
Remote control equipment works, and inputs automatic running parameter, reads measurement data and auxiliary information.
Instrument start after, temperature control circuit 7 is started working, the temperature of prism by precision thermometer Real-time Feedback to master control system
System, until prism temperature reaches set point, in the course of the work, prism is always held at ± range of temperature of 1 °.Bent
The spectral refraction rate of face prism is closely related with temperature with transmitance, utilizes Peltier temperature control curved surface prism, it is ensured that prism steady
Qualitative, improve the high accuracy of spectroradiometric measurement.
Instrument start arrives after steady statue, and first turn-key system is according to the longitude and latitude at observation station place and time, by managing
Opinion formula calculates the theoretical position of the sun, controls rotating mechanism and rotates in corresponding zenith angle and azimuth direction, certainly uses force
Following the tracks of the sun, then utilize the four-quadrant sun tracker 2 precision tracking sun, photosignal is put by 4 quadrant detector circuit 5
Greatly, processing, master controller 13 calculates azimuth and the zenith angle of the deviation sun, and rotating mechanism needs the step number of rotation,
Two-dimensional rotary circuit 8 performs solar tracking, during following the tracks of, four-quadrant sun tracker 2 Real-time Feedback tracking accuracy, directly
Being less than 0.1 ° to following the tracks of sun angle threshold value, instrument stops following the tracks of, and starts to measure.
First instrument measures background signal, and remains to turn-key system.Then opening shutter, sunlight enters light splitting detection
Light path, as shown in Fig. 2, sunlight passes sequentially through optical filter, shutter, incident illumination reflecting mirror arrival curved surface prism, curved surface prism pair
Sunlight light splitting, through front surface after rear surface is reflected, is changed optical path direction by dichroic reflector, puts down detector array Jiao
Position, face is converged, and forms continuous dispersion spectrum.The function of array photodetectors circuit 6 includes that drives, signal filtering are put
Greatly, programming amplifying, each detector pixel complete opto-electronic conversion, export the signal of telecommunication, turn-key system deduction background signal, automatically protect
Depositing measured spectral radiance signal, for judging weather conditions when measuring, instrument was measured 3 times in 10 seconds continuously.Measured
Data can be transferred to local host computer or long-range host computer by controlling interface.
Claims (7)
- The most visible near-infrared wave band high-precision sun irradiance instrument, including the control system being integrated in same Instrument shell, too Sunlight open score probe unit, it is characterised in that: described sunlight open score probe unit includes the entrance slit receiving sunlight, enters Penetrate slit rear and be disposed with the incident illumination reflecting mirror of light spectrum reshaping optical filter, plane mirror structure, incident illumination reflecting mirror Reflected light path on be provided with curved surface prism, described curved surface prism is concave spherical surface towards the front surface of incident illumination reflecting mirror, curved surface Prism rear surface is convex spherical, and curved surface prism rear surface is coated with aluminium mirror coating, and sunlight passes through entrance slit, whole through spectrum It is incident to incident illumination reflecting mirror after shape optical filter optical filtering shaping, then reflexes to curved surface prism front surface through incident illumination reflecting mirror, Curved surface prism front surface is to forming dispersion spectrum after incident sunlight dispersion, and dispersion spectrum is assembled by curved surface prism front surface To curved surface prism rear surface, from curved surface prism outgoing after the aluminium mirror coating of curved surface prism rear surface reflects；Going out of curved surface prism Penetrate the dispersed light reflecting mirror being provided with plane mirror structure in light path, the reflected light path of dispersed light reflecting mirror is provided with array Photodetector, described array photodetectors access control system, and array photodetectors are positioned at Jiao of curved surface prism and put down Position, face, the dispersion spectrum of curved surface prism outgoing, after dispersed light reflecting mirror reflects, is incident to array photodetectors, array light Electric explorer gathers dispersion spectrum signal and dispersion spectrum signal is sent to control system.
- Visible near-infrared wave band high-precision sun irradiance instrument the most according to claim 1, it is characterised in that: the described sun In light open score probe unit, the width of entrance slit, length match with array photodetectors pixel dimension, and array photoelectric is visited Survey dispersion spectrum scope 350nm 1100nm, spectral resolution < 10nm that device is corresponding.
- Visible near-infrared wave band high-precision sun irradiance instrument the most according to claim 1, it is characterised in that: the described sun In light open score probe unit, by light spectrum reshaping optical filter, it is achieved the full wave light intensity in detector focal plane is close, and effectively carries The signal to noise ratio of high low-light (level) wave band.
- Visible near-infrared wave band high-precision sun irradiance instrument the most according to claim 1, it is characterised in that: the described sun In light open score probe unit, incident illumination reflecting mirror, dispersed light reflecting mirror are plane mirror structure, it is achieved that the folding of light path Turn, effectively reduce the overall volume of instrument, and conveniently debug.
- Visible near-infrared wave band high-precision sun irradiance instrument the most according to claim 1, it is characterised in that: the described sun In light open score probe unit, curved surface prism uses active thermoelectric refrigerator to control temperature, described control system and thermoelectric cooling Device controls to connect, and curved surface prism is fixed in metal shell, and metal shell devises transparent glass window and ensures entering of curved surface prism Penetrating unaffected with emitting light path, one end of thermoelectric refrigerator contacts with metal shell, and the outside of metal shell utilizes thermal insulating material Material reduces the heat exchange with surrounding air, the other end of thermoelectric refrigerator and Instrument shell contacts baseplate, outside Instrument shell base plate Portion machined radiating groove and increases the area with contacting external air, the temperature of the real-time measuring prism of precision thermometer, works as curved surface When prism temperature exceedes set point, control system controls thermoelectric refrigerator work.
- Visible near-infrared wave band high-precision sun irradiance instrument the most according to claim 1, it is characterised in that: described instrument Housing is integrated with full-automatic light stopper, automatically opens up, shut out the light and pass through during closedown when measuring sunlight, the dark letter of measuring instrument Number.
- Visible near-infrared wave band high-precision sun irradiance instrument the most according to claim 1, it is characterised in that: also include collection The diaphragm for eliminating stray light cylinder becoming Instrument shell front end, the four-quadrant sun tracker being integrated in Instrument shell, automatically controlled two dimension Turntable, described Instrument shell is placed on two-dimensional rotary platform, and the optical axis of four-quadrant sun tracker is single with the detection of sunlight open score In unit, entrance slit optical axis is parallel, and four-quadrant sun tracker access control system, two-dimensional rotary platform drive sunlight to divide Spectrum probe unit, four-quadrant sun tracker rotate in two dimensional surface, and described control system controls to be connected with two-dimensional rotary platform； Described diaphragm for eliminating stray light cylinder is arranged on entrance slit front in sunlight open score probe unit with optical axis, and sunlight is through the veiling glare light that disappears It is incident to entrance slit after door screen cylinder.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370297A (en) * | 2016-10-10 | 2017-02-01 | 中国科学院合肥物质科学研究院 | High-precision automatic sun photometer |
| CN113865706A (en) * | 2021-09-10 | 2021-12-31 | 中国科学院合肥物质科学研究院 | Integrated solar-skylight background spectrum radiometer based on Linux system |
| CN114719970A (en) * | 2022-03-22 | 2022-07-08 | 中国科学院合肥物质科学研究院 | High-precision spectrum radiance reference radiation instrument suitable for high-altitude low-temperature environment |
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