CN218973634U - Non-contact type high-precision water body surface skin temperature measuring device - Google Patents
Non-contact type high-precision water body surface skin temperature measuring device Download PDFInfo
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- CN218973634U CN218973634U CN202223304546.5U CN202223304546U CN218973634U CN 218973634 U CN218973634 U CN 218973634U CN 202223304546 U CN202223304546 U CN 202223304546U CN 218973634 U CN218973634 U CN 218973634U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
Abstract
The utility model discloses a non-contact high-precision water body epidermis temperature measuring device, which comprises an infrared radiometer, a shielding cover and a floating body; the side wall of the shielding cover is of a hollow double-layer structure, the upper part of the shielding cover is tightly connected to the lower part of the infrared radiometer, and the size of an opening at the lower part of the shielding cover is larger than the angle of view of a sensor of the infrared radiometer; the floating body is connected with the infrared radiometer through a supporting rod; the float provides buoyancy to expose the lower portion of the infrared radiometer above the water surface, while the lower portion of the shadow mask is submerged below the water surface. Because the infrared radiometer and the water surface have a small distance, the skin temperature of the water body which is completely consistent with satellite remote sensing is measured, and the body temperature of the water body is not measured by an underwater instrument; the shielding cover is added to block external infrared radiation, and meanwhile, the double-layer structure of the shielding cover reduces the temperature influence of the shielding cover, so that the skin temperature of the water body can be accurately obtained, additional correction is not needed, and the measuring process is simple and reliable.
Description
Technical Field
The utility model relates to a water body surface temperature measuring device, in particular to a non-contact type high-precision water body surface temperature measuring device.
Background
Sea surface temperature (Sea Surface Temperature, SST) is an important physical quantity for meteorological and marine research. The Sea water skin temperature (Sea-Surface Skin Temperature, SSST, hereinafter referred to as Sea water skin temperature) is the temperature measured within about 100 microns of the water surface layer, and is the result measured by remote sensing equipment such as thermal infrared and microwave radiation detectors, and is also the Sea surface temperature observed by satellite remote sensing. The sea surface Temperature measured by remote sensing is different from the sea surface Temperature (called as sea Temperature) measured by CTD and other devices, and there is a difference of 0.5 ℃ or higher between the sea surface Temperature and the sea surface Temperature, so that CTD sea water Temperature cannot be used for replacing sea water skin Temperature, and the sea water skin Temperature needs to be measured accurately independently.
Sea surface radiation data observed by satellite remote sensing and sea surface infrared radiometers comprise infrared radiation signals of surrounding environments, and auxiliary parameters for measurement are required to be used for post correction, so that measurement accuracy is affected. The ocean surface temperature measurement is easily affected by solar radiation, surface stirring effect, surface skin increasing effect and the like, and the highest measurement precision is +/-0.1 ℃ abroad at present. However, the "skin temperature" measured by the thermal infrared and microwave radiation detectors is not actually the actual skin temperature, because the total radiation intensity at the sea surface is received by the instrument, and the signal contains the radiation intensity generated by the reflection of the sea surface in addition to the radiation emitted by the interior of the sea itself. The skin temperature is influenced by factors such as cloud cover, wind speed (sea surface roughness), observation angle and the like, and the influence caused by reflection needs to be subtracted from measured data to obtain the real skin temperature. In particular, when the cloud cover is small (clear), the correction amount is large and can reach 0.5 ℃; when the cloud amount is large (cloudy day), the correction amount may be less than 0.1 ℃. However, it cannot be said that the data measured on cloudy days are more accurate. Because the light intensity is unstable in overcast days, the synchronous effect of the sea surface and the outside is observed by data, and the stability of a measurement result is seriously influenced. And secondly, the sea surface roughness change caused by different wind speeds can also lead the instrument to receive reflection signals with different sizes, thereby not only bringing errors, but also being inconvenient to correct. Meanwhile, the instrument is generally installed on a ship body, the observation angle (incidence angle) can be changed continuously along with the continuous shaking of the ship body, and the radiation signal caused by the obtained seawater emission correspondingly changes, so that errors are caused.
In summary, the water body radiation values measured by the thermal infrared and microwave radiation detectors contain other radiation information, other parameters (wind speed and the like) on site need to be measured at the same time, contribution of sea surface emission is estimated, data are corrected, and finally sea water skin temperature is obtained, so that uncertainty of different degrees is brought to the process.
Disclosure of Invention
The utility model simply refits the prior infrared radiometer to eliminate the interference of water surface radiation and realize the measurement of the surface temperature of the water body with high precision.
The utility model provides a non-contact high-precision water body epidermis temperature measuring device, which comprises an infrared radiometer, a shielding cover and a floating body; the side wall of the shielding cover is of a hollow double-layer structure, the upper part of the shielding cover is tightly connected to the lower part of the infrared radiometer, and the size of an opening at the lower part of the shielding cover is larger than the angle of view of a sensor of the infrared radiometer; the floating body is connected with the infrared radiometer through a supporting rod; the float provides buoyancy to expose the lower portion of the infrared radiometer above the water surface, while the lower portion of the shadow mask is submerged below the water surface.
Preferably, the floating body is a cylinder.
Preferably, the number of the floating bodies is three, the three floating bodies are respectively connected with the infrared radiometer through the supporting rods, the positions of the three floating bodies form a triangle, and the infrared radiometer is positioned at the center of the triangle.
Preferably, the three floating bodies are located at the positions forming an equilateral triangle.
Preferably, the floating body and the supporting rod are made of corrosion-resistant materials.
Preferably, the floating body is made of PVC material, and the supporting rod is made of carbon fiber material.
Preferably, the bottom surface of the floating body is 16-50cm in diameter, the height of the floating body is 23-50cm, the self weight of the floating body is 220-1000g, and the buoyancy provided by the floating body is 2100-4000g; the diameter of the supporting rod is 1-10cm, the length of the supporting rod is 0.5-1.5m, and the color of the supporting rod is black.
Preferably, the floating body is a life buoy, and the infrared radiometer is fixed at the center of the life buoy through at least three supporting rods.
Preferably, the shielding cover is made of heat-insulating materials.
Preferably, the hollow part of the side wall of the shielding cover is filled with dry ice.
The utility model has the following beneficial effects:
(1) The infrared radiometer has a small distance from the water surface, and the skin temperature of the water body is measured and obtained by the infrared radiometer and is completely consistent with satellite remote sensing, but not the body temperature of the water body measured and obtained by an underwater instrument; in theory, the method can be adopted in any water body, and is particularly suitable for water bodies with uneven temperature in the vertical direction, because the temperature difference between the water body skin and the water body temperature of the water body of the type is larger;
(2) The shielding cover blocks external infrared radiation, the double-layer structure of the shielding cover reduces the temperature influence of the shielding cover, so that the water skin temperature (namely, the total radiation temperature of a measurement result=the water skin temperature) is accurately obtained, errors brought by the traditional method in subsequent treatment are eliminated, additional correction is not needed, and the measurement process is simple and reliable;
(3) The floating body provides the required buoyancy, can be directly placed on the water surface for use without being arranged on a ship, and has no measurement error caused by ship body shaking.
The present utility model will be described in further detail with reference to the accompanying drawings and examples, but the present utility model is not limited to the following examples.
Drawings
FIG. 1 is an example 1 of the present utility model;
FIG. 2 is a shielding cover of embodiment 1 of the present utility model;
FIG. 3 is example 2 of the present utility model;
FIG. 4 is a schematic view of the marine hull survey of example 2 of the present utility model;
fig. 5 is example 3 of the present utility model.
Detailed Description
The utility model provides a non-contact type high-precision water body skin temperature measuring device which is used for accurately measuring skin temperature (fresh water and sea water) of various water bodies, has simple and effective design concept, can be applied to a professional infrared radiometer and can also be used on civil low-cost equipment (hundreds to thousands of people's RMB); the heat insulation materials used for manufacturing the shielding cover are quite various in optional types and low in cost, and in the common application, the shielding cover can still obtain high-precision measurement results even if the heat insulation materials are not used.
Example 1
Referring to fig. 1 and 2, an embodiment 1 of the present utility model is shown, which comprises an infrared radiometer 1, a shielding cover 2 and a floating body 5; the upper part of the shielding cover 5 is tightly connected with the lower part of the infrared radiometer 1, so that the sensor of the infrared radiometer 1 is completely arranged in the shielding cover 5, most of external infrared radiation is blocked outside the shielding cover 5, and the external infrared radiation received by the sensor of the infrared radiometer 1 is reduced; the lower opening of the shielding cap 5 has a size larger than the sensor field angle 4 of the infrared radiometer 1; the floating body 5 is connected with the infrared radiometer 1 through a supporting rod 6; the float 5 provides buoyancy such that the lower part of the infrared radiometer 1 is exposed above the water surface 3, while the lower part of the shadow mask is submerged below the water surface 3. The side wall of the shielding cover 2 in embodiment 1 adopts a hollow double-layer design, the side wall comprises two layers of an outer wall 21 and an inner wall 22, and a hollow 23 between the outer wall 21 and the inner wall 22 can be filled with cooling substances such as dry ice, so as to further reduce the influence from the outside of the water body, in particular the influence of the temperature of the shielding cover 2.
Example 2
Referring to fig. 3, in the embodiment 2 of the present utility model, the infrared radiation meter 1, the shielding cover 2 and 3 floating bodies 5, and the 3 floating bodies 5 are respectively connected with the infrared radiation meter 1 through the supporting rods 6, so that when the embodiment works, the lower part of the infrared radiation meter 1 is suspended above the water surface, and the shielding cover just dips 5-10cm below the water surface, so that external infrared radiation can be blocked. The 3 floating bodies 5 are respectively positioned at the 3 vertexes of an equilateral triangle, and the infrared radiometer 1 is positioned at the center of the equilateral triangle, so that the stability of the device is further improved. In the embodiment, the floating body 5 is in a cylinder shape, the diameter is 16cm, the height is 23cm, PVC materials are selected, the color is black, the self weight is 220g, and the buoyancy is 2100g; the supporting rod 6 is made of carbon fiber materials, has the diameter of 1cm and the length of 1m, and is black in color. The floating body 5 and the supporting rod 6 are made of corrosion-resistant materials, are low in price and are very suitable for offshore use.
The diameter, height and dead weight of the bottom surface of the floating body, the buoyancy provided by the floating body, and the diameter and length of the supporting rod can be selected according to specific applications, and the utility model is not limited.
Referring to fig. 4, there is shown a schematic diagram of the marine hull according to the embodiment 2 of the present utility model, in which the hull 7 is connected to the present embodiment by a cable 8, and when the skin temperature of the sea water is measured, the present embodiment is put on the water surface and drifted to a distance of 10 m or more from the hull, and then the measurement is started. Because the equipment of this embodiment is lighter in weight, cable 8 also can be replaced with polyester braided rope, and polyester braided rope specification is as follows: diameter 6mm, white color, length more than 30m. The terylene braided rope of the specification has high strength, is wear-resistant, corrosion-resistant and ageing-resistant, is suitable for being used at sea, has small density, can float on the water surface, cannot sink, and avoids unbalanced equipment caused by pulling equipment and measurement failure.
Example 3
Referring to fig. 5, in the embodiment 3 of the present utility model, the floating body of the embodiment adopts a life buoy 9, and the infrared radiometer 1 is fixed at the center of the life buoy 9 through three support rods 6, so as to further increase the stability of the device. Because the life buoy is a very common and necessary facility for going out of the sea, the life buoy is convenient to obtain materials and replace and low in price, and meanwhile, the product requirement of the life buoy also ensures that the life buoy has the advantage of corrosion resistance.
Therefore, the non-contact type high-precision water body skin temperature measuring device provided by the utility model has the advantages that by adding the shielding cover to the infrared radiometer, the error caused by external radiation and other factors to the measurement of the water body skin temperature by the infrared radiometer is physically isolated, the simple and high-precision direct measurement of the sea water skin temperature is realized, the micro-scale fine measurement is not realized by treatment correction or extremely difficult to realize (because the water body surface shakes, the method also needs post-treatment data for measurement).
The foregoing is only illustrative of the present utility model and is not to be construed as limiting thereof, but rather as various modifications, equivalent arrangements, improvements, etc., within the spirit and principles of the present utility model.
Claims (10)
1. The non-contact high-precision water body surface skin temperature measuring device is characterized by comprising an infrared radiometer, a shielding cover and a floating body; the side wall of the shielding cover is of a hollow double-layer structure, the upper part of the shielding cover is tightly connected to the lower part of the infrared radiometer, and the size of an opening of the lower part of the shielding cover is larger than the sensor angle of view of the infrared radiometer; the floating body is connected with the infrared radiometer through a supporting rod; the float provides buoyancy to expose the lower portion of the infrared radiometer above the water surface, while the lower portion of the shadow mask is submerged below the water surface.
2. The non-contact high-precision water body surface skin temperature measuring device according to claim 1, wherein: the floating body is a cylinder.
3. The non-contact high-precision water body surface skin temperature measuring device according to claim 2, wherein: the number of the floating bodies is three, the three floating bodies are respectively connected with the infrared radiometer through the supporting rods, the positions of the three floating bodies form a triangle, and the infrared radiometer is positioned at the center of the triangle.
4. A non-contact high-precision water body skin temperature measuring device according to claim 3, wherein: the three floating bodies are positioned to form an equilateral triangle.
5. The non-contact high-precision water body surface skin temperature measuring device according to claim 1, wherein: the floating body and the supporting rod are made of corrosion-resistant materials.
6. The non-contact high-precision water body surface skin temperature measuring device according to claim 5, wherein: the manufacturing material of the floating body adopts a PVC material, and the manufacturing material of the supporting rod adopts a carbon fiber material.
7. A non-contact high-precision water body skin temperature measuring device according to claim 3, wherein: the diameter of the bottom surface of the floating body is 16-50cm, the height of the floating body is 23-50cm, the self weight of the floating body is 220-1000g, and the buoyancy provided by the floating body is 2100-4000g; the diameter of the supporting rod is 1-10cm, the length of the supporting rod is 0.5-1.5m, and the color of the supporting rod is black.
8. The non-contact high-precision water body surface skin temperature measuring device according to claim 1, wherein: the floating body is a life buoy, and the infrared radiometer is fixed at the center of the life buoy through at least three supporting rods.
9. The non-contact high-precision water body surface skin temperature measuring device according to claim 1, wherein: the shielding cover is made of heat insulation materials.
10. The non-contact high-precision water body surface skin temperature measuring device according to claim 1, wherein: the hollow part of the side wall of the shielding cover is filled with dry ice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202223304546.5U CN218973634U (en) | 2022-12-09 | 2022-12-09 | Non-contact type high-precision water body surface skin temperature measuring device |
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| CN202223304546.5U CN218973634U (en) | 2022-12-09 | 2022-12-09 | Non-contact type high-precision water body surface skin temperature measuring device |
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| CN218973634U true CN218973634U (en) | 2023-05-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11830635B1 (en) * | 2022-09-06 | 2023-11-28 | First Institute of Oceanography, Ministry of Natural Resources | Method and system for determining background water temperature of thermal discharge from operating nuclear power plants based on remote sensing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11830635B1 (en) * | 2022-09-06 | 2023-11-28 | First Institute of Oceanography, Ministry of Natural Resources | Method and system for determining background water temperature of thermal discharge from operating nuclear power plants based on remote sensing |
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