CN115219042A - Water circulation black body device for calibrating temperature-measuring radiometer of sea surface - Google Patents
Water circulation black body device for calibrating temperature-measuring radiometer of sea surface Download PDFInfo
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- CN115219042A CN115219042A CN202210896182.XA CN202210896182A CN115219042A CN 115219042 A CN115219042 A CN 115219042A CN 202210896182 A CN202210896182 A CN 202210896182A CN 115219042 A CN115219042 A CN 115219042A
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- water
- layer
- blackbody
- temperature
- measuring
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 162
- 238000009529 body temperature measurement Methods 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims description 5
- 239000000523 sample Substances 0.000 claims description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- 239000013535 sea water Substances 0.000 abstract description 12
- 230000005855 radiation Effects 0.000 abstract description 9
- 239000008239 natural water Substances 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000008213 purified water Substances 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 30
- 230000005457 Black-body radiation Effects 0.000 description 5
- 238000003756 stirring Methods 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011545 laboratory measurement Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 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
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/52—Radiation pyrometry, e.g. infrared or optical thermometry using comparison with reference sources, e.g. disappearing-filament pyrometer
- G01J5/53—Reference sources, e.g. standard lamps; Black bodies
Abstract
The invention provides a water circulation black body device for calibrating and verifying the precision of a sea surface temperature measurement radiometer, which has the core content of providing a water circulation black body device which is similar to a natural water area, is precisely temperature-measured and has the same sky radiation influence. The water circulation blackbody structure comprises an S-shaped water flow buffer cavity, a water inlet, a flat and long water outlet, a thin water layer measuring area, a bubble collecting area, an exhaust hole and a temperature sensor measuring hole. The water circulation blackbody device designed by the invention has the advantages that the formed thin water layer has the effect of a natural water area and is radiated by the natural environment, and compared with the natural water area, the uncertainty of the water layer is very small, and certain factors influencing the surface temperature of seawater can be researched in a targeted manner. The water circulation black body is small and portable, has high cost performance, and can be used for measuring water quality with different emissivity, such as seawater, lake water, purified water and the like. The accuracy of the inversion seawater temperature algorithm can be verified by using the water circulation blackbody measurement after the standard blackbody source is calibrated, so that the accuracy is higher when the radiometer measures the surface temperature of the seawater.
Description
Technical Field
The invention relates to a water circulation blackbody device for calibrating a sea surface temperature measuring radiometer, in particular to a checking device for providing reference temperature and calibrating the temperature measuring radiometer, which can verify the measuring precision and the accuracy of an algorithm of the sea surface temperature measuring radiometer.
Background
The sea surface temperature is one of the important parameters in the research of the physical characteristics of seawater, the sea surface temperature measurement radiometer is equipment for measuring the surface temperature of the ocean water body, and the temperature measurement radiometer needs to be calibrated and verified for the accuracy of measured data. The prior art mostly adopts the following methods or devices: 1, calibration of a stirring tank, and a specific using method is that a temperature measuring radiometer alternately measures temperature measuring objects, namely seawater and a calibrator, namely water in the stirring tank, so as to compare the temperature measuring objects with the calibrator. The stirring tank is filled with water with the same emissivity as a temperature measurement target and is discharged through the push rod type nozzle, the surface skin layer effect can be damaged in the mode, and the contact type temperature measuring instrument is used for measuring the surface layer temperature to serve as the reference temperature. 2, adopt standard blackbody radiation source to calibrate, standard blackbody radiation source can the settlement temperature, can provide accurate stable temperature reference source, because the emissivity of standard blackbody radiation source can reach more than 0.998, the accuracy that the instrument can be calibrated and verified to the ocean surface thermometric radiometer use this equipment measured temperature. However, the standard black body cannot check the influence of the radiometer on removing atmospheric radiation, and no method is available for determining the accuracy of measuring the natural water body.
The accuracy of the above devices as calibration and verification radiometers has certain limitations. The stirring tank scheme is characterized in that water in the measuring bucket is sprayed out, the water surface is uneven, the temperature of the wall of the water bucket can be reflected, and interference is added to cause measuring errors. The temperature of the standard blackbody radiation source is mainly provided by the inside of the cavity, the temperature is single and stable, and various radiation components influencing the sea surface temperature such as atmospheric radiation need to be considered when the sea surface temperature is measured. In the internationally organized radiometer comparison combined experiment, the fact that in laboratory measurement of a standard blackbody radiation source, the reading of most radiometers can keep higher precision and the temperature difference with a reference blackbody is smaller is found. However, in the water body skin temperature ratio measurement experiment under the natural environment, the readings of all the radiometers are obviously different.
The invention provides a water circulation black body device for calibrating a sea surface temperature measurement radiometer. The water layer on the surface of the water circulation black body is the same as that of a natural water body and consists of a plurality of radiant quantities, so that the water circulation black body can be used for researching a temperature measurement algorithm and influencing factors of the sea surface temperature measurement radiometer.
Disclosure of Invention
The invention aims to provide a water circulation blackbody device for calibrating and verifying the accuracy of a sea surface temperature measuring radiometer so as to make up for the defects of the prior art. The temperature measurement radiometer measures the infrared radiation temperature of the surface layer of seawater and mainly comprises spontaneous radiation of the real temperature of the surface of the seawater and reflected partial sky radiation. The core of the invention is to provide a device which has the same radiation as that influencing the seawater measuring environment and is a water circulation black body capable of forming a water layer with uniform temperature and stable flow speed. The water-based paint is used for the sea surface, and can also be popularized and used for other water bodies or liquid.
For ease of understanding and implementation, the following presents a description of the principles of the present invention including key components.
A hydrologic cycle blackbody device for calibrating and verifying sea table temperature measurement radiometer precision comprises circulating water pump and the hydrologic cycle blackbody structure that uses the whole processing of heat conduction metal, and hydrologic cycle blackbody structure includes S type rivers buffering cavity, water inlet, flat elongated delivery port, thin water layer measuring area, bubble collection area and exhaust hole to and temperature sensor measuring orifice.
The circulating water pump injects water into a bubble collecting area at the bottom layer of the S-shaped water flow buffer cavity from the water inlet by pumping the water with different temperatures and salinity, bubbles in the water are discharged through the exhaust holes, gas-free water flow reaches the flat and long water outlet through the S-shaped water flow buffer cavity, water flow forms a thin water layer with uniform temperature and stable flow speed in a thin water layer measuring area outside the water outlet, the thin water layer is used for calibrating and verifying the precision of the sea surface temperature measurement radiometer, accurate water temperature is measured by a precise temperature measurement probe installed in a measuring hole of the temperature sensor, and in addition, the precise temperature measurement probe is also installed in the constant-temperature water tank.
A higher height space is reserved on the bottommost layer of the S-shaped water flow buffer cavity, the height of the position of water flow flowing out from the bottommost layer is shortened, a bubble collecting area is formed at the bottom layer of the S-shaped water flow buffer cavity, a floating water body with bubbles is blocked, and the water body with the bubbles is discharged from an exhaust hole above a water inlet.
The bottom layer of the S-shaped water flow buffer cavity can be pumped into the bottom layer of the S-shaped water flow buffer cavity from the air vent, so that the thin water layer can form a water layer mixed with quantitative bubbles, and the water layer is used for researching the influence of the water body with the bubbles on temperature measurement.
The position of the flat-long water outlet is narrowed, so that a continuous thin water layer with controllable flow rate is formed in the thin water layer measuring area. The circulating water pump can adjust and control the water flow speed and is used for researching the change condition of the water surface temperature uniformity at different flow speeds.
The temperature sensor measuring hole is positioned below the thin water layer and is used for measuring by adopting a temperature measuring sensor. The water circulation black body structure integrally processed by the heat-conducting metal uses red copper as a raw material, and the surface of the red copper is plated with a layer of black nickel to enhance the corrosion resistance and the anti-reflection performance of the water circulation black body device.
The invention designs a water circulation black body device with uniform water layer temperature and stable flow speed by calibrating and verifying the measurement characteristics of a sea surface temperature measurement radiometer, and the formed thin water layer has the effect of a natural water area and is radiated by the natural environment. The water circulation blackbody is small and portable, has high cost performance, and can be used for measuring water quality with different emissivity, such as seawater, lake water, purified water and the like. The accuracy of the inversion seawater temperature algorithm can be verified by using the water circulation blackbody measurement after the standard blackbody source is calibrated, so that the accuracy is higher when the surface layer temperature of the seawater is measured.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of the present invention.
The water circulation blackbody structure 2,S type water flow buffer cavity 1 is composed of a water circulation blackbody structure 2,S water flow buffer cavity 3, an exhaust hole 4, a water inlet 5, a water circulation pump 6, a constant-temperature water tank 7, a flat and long water outlet 8, a sea surface temperature measurement radiometer measuring direction 9, a temperature sensor measuring hole 10, a thin water layer measuring area 11, a water flow direction 12, an air bubble collecting area 13, air bubbles
Detailed Description
The specific embodiments are provided herein for illustrating the invention and are not to be construed as limiting the invention to the forms disclosed herein.
The circulating water tank (6) can select water bodies with different temperatures and different salinity according to the requirement of a measured target, the water bodies are extracted by the circulating water pump (5) and injected into the water circulating black body structure (1) through the water inlet (4), bubbles (13) float to the bubble collecting area (12) and are discharged through the exhaust holes (3), the residual water bodies continue to be buffered in the S-shaped water flow buffering cavity (2) along the water flow direction (11) and reach the flat and long water outlet (7), and the thin water layer measuring area (10) of the water flow outside the water outlet forms a thin water layer with uniform temperature and stable flow speed. After the thin water layer is influenced by sky radiation, the sea surface temperature measurement radiometer measures the skin temperature of the thin water layer along the measuring direction (8), the temperature measured by the temperature measurement sensor at the temperature sensor measuring hole (9) is used as a calibration parameter for comparison, and in addition, a tight temperature measurement probe is also installed in the constant temperature water tank.
In another embodiment, the vent hole (3) is reversely utilized, and in the water circulation blackbody structure (1), the water body mixed with the bubbles (13) can be pumped into the bottommost layer of the S-shaped water flow buffer cavity (2) from the vent hole (3), so that the thin water layer measuring area (10) can form a water layer mixed with quantitative bubbles for researching the influence of the water body with the bubbles on temperature measurement.
The above description is only an embodiment of the present invention, and further detailed descriptions are provided for the purpose, technical solution and beneficial effects of the present invention, and the above description does not limit the scope of the present invention, and all modifications made by using the content of the present invention in equivalent structures or equivalent processes, or directly or indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (8)
1. The utility model provides a hydrologic cycle blackbody device for calibration of sea table temperature measurement radiometer which characterized in that includes circulating water pump and the whole water cycle blackbody structure who processes of heat conduction metal, and water cycle blackbody structure includes S type rivers buffering cavity, water inlet, flat elongated delivery port, thin water layer measuring zone, bubble collection area and exhaust hole to and the temperature sensor measuring orifice.
2. The water circulating blackbody apparatus of claim 1 wherein: the circulating water pump injects water into a bubble collecting area at the bottom layer of the S-shaped water flow buffer cavity from the water inlet by pumping the water with different temperatures and salinity, bubbles in the water are discharged through the exhaust holes, gas-free water flow reaches the flat and long water outlet through the S-shaped water flow buffer cavity, water flow forms a thin water layer with uniform temperature and stable flow speed in a thin water layer measuring area outside the water outlet, the thin water layer is used for calibrating and verifying the precision of the sea surface temperature measurement radiometer, accurate water temperature is measured by a precise temperature measurement probe installed in a measuring hole of the temperature sensor, and in addition, the precise temperature measurement probe is also installed in the constant-temperature water tank.
3. The water circulating blackbody apparatus of claim 1 wherein: a higher height space is reserved on the bottommost layer of the S-shaped water flow buffer cavity, the height of the position of water flow flowing out from the bottommost layer is shortened, a bubble collecting area is formed at the bottom layer of the S-shaped water flow buffer cavity, a floating water body with bubbles is blocked, and the water body with the bubbles is discharged from an exhaust hole above a water inlet.
4. The water circulating blackbody apparatus of claim 1 wherein: the bottom layer of the S-shaped water flow buffer cavity can pump the water body mixed with the bubbles into the bottom layer of the S-shaped water flow buffer cavity from the exhaust holes, so that the thin water layer can form a water layer mixed with quantitative bubbles.
5. The water circulating blackbody apparatus of claim 1 wherein: and the position of the flat and long water outlet is narrowed, so that a continuous thin water layer with controllable flow speed is formed in the thin water layer measuring area.
6. The water circulating blackbody apparatus of claim 1 wherein: the circulating water pump can adjust and control the water flow speed and is used for researching the change condition of the water surface temperature uniformity at different flow speeds.
7. The water circulating blackbody apparatus of claim 1 wherein: the temperature sensor measuring hole is located below the thin water layer and is used for measuring by adopting a temperature sensor.
8. The water circulating blackbody apparatus of claim 1 wherein: the water circulation black body structure integrally processed by the heat-conducting metal uses red copper as a raw material, and the surface of the water circulation black body structure is plated with a layer of black nickel to enhance the corrosion resistance and the anti-reflection performance of the water circulation black body device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210896182.XA CN115219042B (en) | 2022-07-28 | 2022-07-28 | Water circulation blackbody device for calibrating sea surface temperature measuring radiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210896182.XA CN115219042B (en) | 2022-07-28 | 2022-07-28 | Water circulation blackbody device for calibrating sea surface temperature measuring radiometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115219042A true CN115219042A (en) | 2022-10-21 |
| CN115219042B CN115219042B (en) | 2024-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210896182.XA Active CN115219042B (en) | 2022-07-28 | 2022-07-28 | Water circulation blackbody device for calibrating sea surface temperature measuring radiometer |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207036643U (en) * | 2017-07-06 | 2018-02-23 | 上海闳效信息科技有限公司 | Simulating ocean environment emulation experiment cabin |
| CN110749620A (en) * | 2019-10-16 | 2020-02-04 | 中国科学院南海海洋研究所 | Sea-air interaction thermocline measuring, calculating and classifying method |
| CN211849708U (en) * | 2019-12-27 | 2020-11-03 | 易兰(北京)规划设计股份有限公司 | Water film waterscape |
| CN112880842A (en) * | 2020-12-29 | 2021-06-01 | 中国海洋大学 | Water surface temperature infrared thermometer without sky temperature measurement |
-
2022
- 2022-07-28 CN CN202210896182.XA patent/CN115219042B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207036643U (en) * | 2017-07-06 | 2018-02-23 | 上海闳效信息科技有限公司 | Simulating ocean environment emulation experiment cabin |
| CN110749620A (en) * | 2019-10-16 | 2020-02-04 | 中国科学院南海海洋研究所 | Sea-air interaction thermocline measuring, calculating and classifying method |
| CN211849708U (en) * | 2019-12-27 | 2020-11-03 | 易兰(北京)规划设计股份有限公司 | Water film waterscape |
| CN112880842A (en) * | 2020-12-29 | 2021-06-01 | 中国海洋大学 | Water surface temperature infrared thermometer without sky temperature measurement |
Non-Patent Citations (1)
| Title |
|---|
| 张凯临等: "高精度海表皮温红外辐射测量系统", 《中国海洋大学学报》, vol. 50, no. 5, pages 157 - 162 * |
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| Publication number | Publication date |
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| CN115219042B (en) | 2024-03-29 |
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