CN216816983U - Lamp light source system suitable for satellite-borne low-light-level imager business radiometric calibration - Google Patents
Lamp light source system suitable for satellite-borne low-light-level imager business radiometric calibration Download PDFInfo
- Publication number
- CN216816983U CN216816983U CN202220243127.6U CN202220243127U CN216816983U CN 216816983 U CN216816983 U CN 216816983U CN 202220243127 U CN202220243127 U CN 202220243127U CN 216816983 U CN216816983 U CN 216816983U
- Authority
- CN
- China
- Prior art keywords
- module
- light source
- satellite
- light
- monitoring
- 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.)
- Active
Links
Images
Landscapes
- Radiation Pyrometers (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
A lamp light source system suitable for satellite-borne low-light-level imager business radiometric calibration comprises an integrating sphere, wherein a light source module is arranged in the integrating sphere, and a power supply module, a monitoring module, a control module and a water cooling module are connected to the outer side of the integrating sphere; the power supply module is connected with the light source module, the control module, the monitoring module and the water cooling system, and the output end of the monitoring module is connected with the control module; the control module is pre-stored with satellite transit time data, connected with the light source module and used for controlling the work of the light source module according to the satellite transit time data and the monitoring data obtained by the monitoring module; the control module is connected with the water cooling module and controls the operation of the water cooling module according to the monitoring data obtained by the monitoring module. The system provided by the utility model can ensure that the integrating sphere has automatic control capability when carrying out radiation calibration and can still be normally used in the environment of being separated from commercial power.
Description
Technical Field
The utility model relates to a lamp light source system suitable for satellite-borne low-light-level imager business radiometric calibration, and belongs to the technical field of remote sensing.
Background
Due to the huge radiation dynamic range of the satellite-borne low-light imager, radiation calibration under high gain at night is difficult. At present, a glimmer calibration method based on stable radiation of a ground lamp light source is started at home and abroad, by calculating uplink radiation reaching the top of an atmospheric layer in emission of the ground lamp light source, compared with an actual observation value of a satellite, the glimmer calibration method can theoretically reduce moon interference and realize high-precision glimmer radiometric calibration. At present, the existing ground Light Source such as bridge Light, ship Light and the like is used as the Light Source target for monitoring the satellite-borne low-Light imager, but due to the defects of unstable luminous Power, difficult measurement of spectral characteristics, no isotropy and the like (Cao C and Y Bai, 2014: Quantitative Analysis of VIIRS DNB Nightlight Point Source for Light Power Estimation and Stability monitoring, Remote Sens, 6, 11915-11935. doi: 10.3390/rs 61211915.), a special Light Source device suitable for radiation calibration of the satellite-borne low-Light imager needs to be developed.
The existing integrating sphere lamp light source device (application number CN 202022785067.4) for the radiation calibration of the satellite-borne low-light level imager has a good effect when related scientific research of the radiation calibration is carried out, but is inconvenient when used for the external field business radiation calibration due to the fact that an automatic control module is lacked and the device cannot be separated from a mains supply environment.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, provides a lamp light source system suitable for satellite-borne low-light-level imager business radiometric calibration, and can ensure that an integrating sphere has automatic control capability when carrying out radiometric calibration and can still be normally used in the environment of being separated from commercial power.
In order to achieve the aim, the utility model provides an integrating sphere lamp light source device for radiation calibration of a satellite-borne low-light-level imager, which comprises an integrating sphere, wherein a light source module is arranged in the integrating sphere, and the outer side of the integrating sphere is connected with a power supply module, a monitoring module, a control module and a water cooling module;
the power supply module is connected with the light source module, the control module, the monitoring module and the water cooling system, and the output end of the monitoring module is connected with the control module;
the control module stores satellite transit time data in advance, is connected with the light source module and controls the light source module to work according to the satellite transit time data and monitoring data obtained by the monitoring module;
the control module is connected with the water cooling module and controls the operation of the water cooling module according to the monitoring data obtained by the monitoring module.
Further, the power supply module includes: distribution lines and oil machine, distribution lines connects the commercial power and obtains the electric energy, the oil machine is used for providing the electric energy under no commercial power condition.
Further, the light source module is an LED light emitting unit which is uniformly arranged in the front hemisphere of the integrating sphere.
Furthermore, a light outlet is formed in the sphere body of the integrating sphere, and light emitted by the LED light-emitting unit is reflected by the inner wall of the integrating sphere to emit uniform white light at the light outlet.
Further, the installation position of the LED light-emitting unit is 65 degrees with the central normal of the light outlet.
Further, the monitoring module includes a spectral radiometer for monitoring the emergent radiation and a stability monitor for monitoring the radiation stability.
Preferably, the spectral radiometer detects a spectral range that can cover a spectral range of a satellite borne micro-light imager.
Further, the monitoring module also comprises a temperature sensor, and the temperature sensor is used for monitoring the working temperature inside the integrating sphere.
Further, the water-cooling module is including locating the water-cooling lamp stand of light source module bottom and the water-cooling tank of locating the integrating sphere outside, the water-cooling lamp stand passes through the pipe connection with the water-cooling tank.
Preferably, the water-cooled lamp holder is fixed on the integrating sphere, and a half-circle arc-shaped light barrier is surrounded on the outer ring of the water-cooled lamp holder at the inner part of the integrating sphere.
Preferably, the refrigerant fluid of the water-cooling tank flows through the water-cooling lamp holder to take away the heat of the light source module.
Further, the integrating sphere is supported on the horizontal ground through a support frame.
Compared with the prior art, the utility model has the following beneficial effects:
the device comprises an integrating sphere, wherein a light source module is arranged in the integrating sphere, and a power supply module, a monitoring module, a control module and a water cooling module are connected to the outer side of the integrating sphere; the power supply module is connected with the light source module, the control module, the monitoring module and the water cooling system, and the output end of the monitoring module is connected with the control module; the power supply module is added, so that the power supply module can still be normally used in the environment of being separated from commercial power, and can operate in the field for a long time under the unmanned condition;
the control module stores satellite transit time data in advance, is connected with the light source module and controls the light source module to work according to the satellite transit time data and the monitoring data obtained by the monitoring module; the control module is connected with the water cooling module and controls the operation of the water cooling module according to the monitoring data obtained by the monitoring module. The light source module can emit white light with uniform directions, and the spectral range of the white light is matched with the relative response function of the satellite-borne low-light-level imager; the utility model adds the control module, can operate in the external field for a long time under the unmanned condition, and is suitable for the satellite-borne low-light-level imager to carry out business radiation calibration under the external field condition.
Drawings
Fig. 1 is a schematic structural diagram of an integrating sphere lamp light source device for radiometric calibration of a satellite-borne low-light-level imager according to an embodiment of the present invention.
In the figure: 1. an integrating sphere; 2. a light outlet; 3. a spectral radiometer; 4. a stability detector; 5. a control module; 6. an oil engine; 7. a water cooling tank.
Detailed Description
The utility model is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to describe distinctions and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
As shown in FIG. 1, the lamp light source system suitable for satellite-borne low-light-level imager business radiometric calibration comprises a support frame, an integrating sphere 1, a light source module, a power supply module, a monitoring module, a control module 5 and a water cooling module.
Integrating sphere 1 internal diameter 400mm supports by the support frame, can steadily place on level ground. Preferably, the support frame is made of steel and has the characteristics of firmness and corrosion resistance. The integrating sphere 1 is provided with a circular light outlet 2 with the diameter of 220 mm.
The light source module is arranged inside the integrating sphere 1, is an LED light-emitting unit, is arranged inside the integrating sphere 1, and is powered by the power supply module. Light emitted by the LED light-emitting unit is reflected by the inner wall of the integrating sphere 1, and then uniform white light is emitted from the light outlet 2. In this embodiment, the light source module is 12 500W power LED light emitting units with different wavelengths, and the light outlet 2 covers a spectral range of 500-900nm in radiation, and matches with the relative response function of the satellite-borne micro-light imager. The 12 LED light-emitting units are uniformly arranged at an interval of 30 degrees in the front hemisphere of the integrating sphere 1, and the installation position of the LED light-emitting units is 65 degrees with the central normal of the light outlet 2.
The power supply module comprises a distribution line and an oil engine 6. The distribution line is connected with a mains supply to obtain an alternating current mains supply with 220V voltage and 50Hz frequency. Under the condition of no commercial power, the oil engine 6 is started to supply power for a lamp light source system suitable for the satellite-borne low-light-level imager business radiometric calibration.
The monitoring module is powered by a power supply module and comprises a spectral radiometer 3, a stability monitor 4 and a temperature sensor. The spectral radiometer 3 is used for monitoring the emerging radiation. In the embodiment, the high-sensitivity spectrometer covering the 500-900nm spectral range suitable for the low-light condition is selected, so that the spectral radiance of the light outlet 2 can be accurately detected. The stability monitor 4 is used to monitor radiation stability. In this embodiment, a high-sensitivity photoelectric sensor is selected to convert an optical signal into a high-resolution digital output signal, so that the temporal stability of output radiation can be monitored. The temperature sensor is used to monitor the operating temperature inside the integrating sphere 1.
The control module 5 stores satellite transit time data in advance, including the transit time of the satellite every day within 30 days. The control module 5 controls the lamp light source system suitable for the satellite-borne low-light-level imager business radiometric calibration to start working before 5 minutes of the satellite transit time and stop working after 5 minutes of the satellite transit time. When the device works, the control module 5 controls the running state of the light source module according to the monitoring data of the spectral radiometer 3 and the stability monitor 4.
The water-cooling module comprises a water-cooling lamp holder arranged at the bottom of the light source module and a water-cooling tank 7 arranged outside the integrating sphere 1, and the water-cooling lamp holder is connected with the water-cooling tank 7 through a pipeline. The control module 5 controls the refrigerant liquid of the water cooling tank 7 to flow through the water cooling lamp holder to take away the huge heat generated by the light source module according to the monitoring data of the temperature sensor, thereby realizing dynamic constant temperature control and preventing the temperature of the light source from rising to influence the emergent radiation.
Compared with the prior art, the lamp light source system suitable for the satellite-borne low-light-level imager business radiometric calibration can enable the integrating sphere 1 to have automatic control capability when the radiometric calibration is carried out, and can still be normally used in the environment of being separated from the commercial power.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A lamp light source system suitable for satellite-borne low-light-level imager business radiometric calibration is characterized by comprising an integrating sphere, wherein a light source module is arranged in the integrating sphere, and a power supply module, a monitoring module, a control module and a water cooling module are connected to the outer side of the integrating sphere;
the power supply module is connected with the light source module, the control module, the monitoring module and the water cooling system, and the output end of the monitoring module is connected with the control module;
the control module is pre-stored with satellite transit time data, connected with the light source module and used for controlling the work of the light source module according to the satellite transit time data and the monitoring data obtained by the monitoring module;
the control module is connected with the water cooling module and controls the operation of the water cooling module according to the monitoring data obtained by the monitoring module.
2. The lamp light source system suitable for the business radiometric calibration of the satellite-borne low-light imager as claimed in claim 1, wherein the power supply module comprises a power distribution line and an oil engine, the power distribution line is connected to a commercial power to obtain electric energy, and the oil engine is used for providing electric energy under the condition of no commercial power.
3. The lamp light source system suitable for the business radiometric calibration of the satellite-borne low-light imager as claimed in claim 1, wherein the light source module is an LED light emitting unit, and the LED light emitting unit is uniformly arranged in the front hemisphere of the integrating sphere.
4. The lamp light source system suitable for the business radiometric calibration of the satellite-borne low-light-level imager as claimed in claim 3, wherein a light outlet is formed on the integrating sphere, and light emitted from the LED light emitting unit is reflected by the inner wall of the integrating sphere to emit white light with uniform directions at the light outlet.
5. The lamp light source system suitable for the business radiometric calibration of the satellite borne low-light imager as claimed in claim 4, wherein the mounting position of the LED light emitting unit is 65 ° from the central normal of the light outlet.
6. The lamp light source system suitable for the business radiometric calibration of the satellite borne micro-imager as claimed in claim 1, wherein the monitoring module comprises a spectral radiometer for monitoring the emergent radiation and a stability monitor for monitoring the radiation stability.
7. The lamp light source system suitable for the business radiometric calibration of the satellite-borne low-light imager as claimed in claim 1, wherein said monitoring module further comprises a temperature sensor for monitoring the operating temperature inside the integrating sphere.
8. The lamp light source system suitable for the business radiation calibration of the satellite-borne low-light-level imager as claimed in claim 1, wherein the water cooling module comprises a water cooling lamp holder arranged at the bottom of the light source module and a water cooling tank arranged outside the integrating sphere, and the water cooling lamp holder is connected with the water cooling tank through a pipeline.
9. The lamp light source system suitable for the business radiometric calibration of the satellite-borne low-light imager as claimed in claim 1, wherein the integrating sphere is supported on a horizontal ground by a supporting frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220243127.6U CN216816983U (en) | 2022-01-29 | 2022-01-29 | Lamp light source system suitable for satellite-borne low-light-level imager business radiometric calibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220243127.6U CN216816983U (en) | 2022-01-29 | 2022-01-29 | Lamp light source system suitable for satellite-borne low-light-level imager business radiometric calibration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216816983U true CN216816983U (en) | 2022-06-24 |
Family
ID=82065145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220243127.6U Active CN216816983U (en) | 2022-01-29 | 2022-01-29 | Lamp light source system suitable for satellite-borne low-light-level imager business radiometric calibration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216816983U (en) |
-
2022
- 2022-01-29 CN CN202220243127.6U patent/CN216816983U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208044404U (en) | A kind of natural gas crusing robot | |
| CN108105706B (en) | Solar aviation obstruction light | |
| JPH01242927A (en) | Radiation sensor | |
| CN110486792A (en) | Heat supply network remote monitoring and managing system and method based on GPRS network | |
| CN216816983U (en) | Lamp light source system suitable for satellite-borne low-light-level imager business radiometric calibration | |
| US10006814B2 (en) | Temperature detecting device | |
| CN213813993U (en) | Integrating sphere lamp light source device for radiation calibration of satellite-borne low-light-level imager | |
| KR20190048865A (en) | System for mesurement and analysis of radiation of sea environment | |
| CN208239855U (en) | Clean room environment monitor | |
| CN216083879U (en) | Forest fire prevention early warning monitoring system | |
| CN203481619U (en) | Laser diode temperature-constant apparatus | |
| CN110967053A (en) | Building engineering monitoring facilities based on thing networking transmission | |
| CN210221290U (en) | Solar total radiation meter | |
| CN202600105U (en) | Detection device for solar photovoltaic battery | |
| CN105115928A (en) | Composite sensor | |
| CN205844140U (en) | A kind of Novel cloud end data storage sensor of dust concentration | |
| CN213067962U (en) | Intelligent pipeline temperature measuring device based on NB-IOT | |
| CN112033455B (en) | Machine room UPS detection system and method | |
| CN218003353U (en) | Cloud platform earthquake macro-monitoring instrument | |
| CN207867659U (en) | A kind of infrared and ultraviolet combined type scanning flame detector | |
| CN207300320U (en) | A kind of agricultural envirment factor detecting system | |
| CN113867445B (en) | Rapid heating system based on light-gathering heating and thermogravimetric analysis method | |
| CN219302343U (en) | Multi-layer soil moisture content sensor | |
| CN210776130U (en) | Light filling lamp state detection device based on thing networking | |
| CN102621475A (en) | Solar photovoltaic cell detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |