An atmospheric temperature measuring device

Abstract

The present invention discloses an atmospheric temperature measuring device, comprising a first shading plate, a second shading plate, an outer guide plate, an inner guide plate, a guide body, a temperature sensor probe, a heat-insulating support rod, a first heat-insulating fixing rod, a second heat-insulating fixing rod and a third heat-insulating fixing rod, wherein the first heat-insulating fixing rod and the second heat-insulating fixing rod are symmetrically installed between the first shading plate and the second shading plate, and the outer guide plate, the inner guide plate and the guide body are sequentially installed on the first heat-insulating fixing rod and the second heat-insulating fixing rod from top to bottom. The atmospheric temperature measuring device of the present invention has a structure composed of a double-layer guide plate, the center opening of the guide plate is downward, pointing to the temperature sensor probe, has a certain guide effect and can prevent solar radiation from directly irradiating the internal temperature sensor probe. A shading plate is placed above and below the temperature measuring device to effectively reduce direct solar radiation from above and reflected solar radiation from the underlying surface, thereby reducing heat pollution.

Description

Technical Field

[0001] The invention relates to the technical field of atmospheric temperature measurement, in particular to an atmospheric temperature measuring device. Background Art

[0002] During the atmospheric temperature measurement process, solar radiation during the day causes the sensor to heat up, which is higher than the air temperature of the surrounding environment. The error caused by this phenomenon is called solar radiation error. At present, meteorological stations use louvered boxes or radiation shields to avoid direct radiation from the sun to the sensor probe and reduce radiation errors. Since the louvered box blades and the radiation shield rings are not conducive to airflow, the low airflow speed inside the louvered box or radiation shield will cause the radiation error to increase. In addition, since there are gaps between the louvered box blades and the radiation shield rings, there is always a certain proportion of direct solar radiation, scattered radiation and ground reflected radiation entering the instrument through the gaps and irradiating the surface of the temperature sensor probe. This effect will also further expand the radiation error. The radiation error of the louvered box and the radiation shield can reach 1°C or even higher. The louvered box blades and the radiation shield rings not only cause radiation error problems, but also reduce the response speed of the temperature sensor probe, causing hysteresis errors. The hysteresis of the wooden louvered box can reach more than 10 minutes. The louvered box with blades or the radiation shield with ring pieces can help block solar radiation, but also hinder the circulation of air, which brings difficulties to improving the performance of the louvered box or the radiation shield. Summary of the invention

[0003] In order to solve the deficiencies mentioned in the above background technology, the purpose of the present invention is to provide an atmospheric temperature measuring device, which is composed of a double-layer guide plate, the center opening of the guide plate is downward, pointing to the temperature sensor probe, has a certain diversion effect and can prevent solar radiation from directly irradiating the internal temperature sensor probe. A sunshade is placed above and below the temperature measuring device to effectively reduce direct solar radiation from above and reflected solar radiation from the underlying surface, thereby reducing thermal pollution.

[0004] The purpose of the present invention can be achieved through the following technical solutions:

[0005] An atmospheric temperature measuring device comprises a first light shielding plate, a second light shielding plate, an outer guide plate, an inner guide plate, a guide body, a temperature sensor probe, an insulation support rod, a first insulation fixing rod, a second insulation fixing rod and a third insulation fixing rod, wherein the first insulation fixing rod and the second insulation fixing rod are symmetrically installed between the first light shielding plate and the second light shielding plate, the outer guide plate, the inner guide plate and the guide body are installed on the first insulation fixing rod and the second insulation fixing rod in sequence from top to bottom, the bottom end of the third insulation fixing rod is fixedly connected to the second light shielding plate, the end of the third insulation fixing rod away from the second light shielding plate passes through the guide body and extends to the interior of the guide body, and the temperature sensor probe is installed on one end of the third insulation fixing rod located inside the guide body.

[0006] As a preferred solution of the present invention, the central arc-shaped openings inside the outer guide plate and the inner guide plate point downward to the temperature sensor probe, which is beneficial to guiding the airflow to the temperature sensor probe. The arc-shaped opening at the upper end of the guide body points to the temperature sensor probe, which is used to further increase the drainage effect. A ventilation gap is provided at the lower end of the guide body, which is beneficial to the exchange of air inside and outside, and can ensure the accuracy and real-time performance of temperature measurement.

[0007] As a preferred solution of the present invention, the inner surfaces of the outer guide plate, the inner guide plate and the guide body are smooth and coated with a high-absorption black coating, and the outer surface of the guide body is provided with a high-reflectivity coating to reduce the impact of secondary reflection on the internal temperature sensor probe.

[0008] As a preferred solution of the present invention, the material of the first light shading plate and the second light shading plate is metal, the surface of the first light shading plate and the second light shading plate close to each other is provided with a high absorption rate coating, and the surface of the first light shading plate and the second light shading plate away from each other is provided with an aluminum film, so as to improve the reflectivity.

[0009] As a preferred solution of the present invention, the first heat-insulating fixing rod and the second heat-insulating fixing rod are made of plastic with a low heat transfer coefficient, which can effectively reduce thermal pollution.

[0010] The beneficial effects of the present invention are:

[0011] 1. The central arc-shaped opening inside the outer guide plate and the inner guide plate of the present invention points downward to the temperature sensor probe, which is conducive to guiding the airflow to the temperature sensor probe. The arc-shaped opening at the upper end of the guide body also points to the temperature sensor probe, further increasing the drainage effect. There is a ventilation slit at the lower end of the guide body, which is conducive to the exchange of air inside and outside, and can ensure the accuracy and real-time performance of temperature measurement;

[0012] 2. The present invention is provided with a sunshade, which can effectively prevent the sun from directly irradiating the device and reduce the radiation error of the internal temperature sensor probe. At the same time, it can effectively block low-angle sunlight from entering the device in the morning and evening, and can also effectively prevent rain, snow, leaves, dust and other sediments from entering the device. A sunshade is provided at the bottom of the device to prevent reflected radiation from the underlying surface and alleviate the secondary radiation pollution problem of the temperature sensor probe. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below in conjunction with the accompanying drawings.

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 is a top view of the present invention;

[0016] Figure 3 It is a front view of the present invention.

[0017] In the figure:

[0018] 1. First sunshade; 2. Second sunshade; 3. External guide plate; 4. Internal guide plate; 5. Guide body; 6. Temperature sensor probe; 7. First heat-insulating fixing rod; 8. Second heat-insulating fixing rod; 9. Third heat-insulating fixing rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0021] like Figure 1-Figure 3 As shown, an atmospheric temperature measuring device includes a first shading plate 1, a second shading plate 2, an outer guide plate 3, an inner guide plate 4, a guide body 5, a temperature sensor probe 6, an insulation support rod, a first insulation fixing rod 7, a second insulation fixing rod 8 and a third insulation fixing rod 9, the first insulation fixing rod 7 and the second insulation fixing rod 8 are symmetrically installed between the first shading plate 1 and the second shading plate 2, the outer guide plate 3, the inner guide plate 4 and the guide body 5 are installed on the first insulation fixing rod 7 and the second insulation fixing rod 8 from top to bottom, the bottom end of the third insulation fixing rod 9 is fixedly connected to the second shading plate 2, the end of the third insulation fixing rod 9 away from the second shading plate 2 passes through the guide body 5 and extends to the inside of the guide body 5, and the temperature sensor probe 6 is installed on one end of the third insulation fixing rod 9 located inside the guide body 5.

[0022] As a preferred solution of the present invention, the central arc-shaped openings inside the outer guide plate 3 and the inner guide plate 4 point downward to the temperature sensor probe 6, which is beneficial to guiding the airflow to the temperature sensor probe 6. The arc-shaped opening at the upper end of the guide body 5 points to the temperature sensor probe 6, which is used to further increase the drainage effect. A ventilation gap is provided at the lower end of the guide body 5, which is beneficial to the exchange of air inside and outside, and can ensure the accuracy and real-time performance of temperature measurement.

[0023] As a preferred solution of the present invention, the inner surfaces of the outer guide plate 3, the inner guide plate 4 and the guide body 5 are smooth and coated with a high-absorption black coating, and the outer surface of the guide body 5 is provided with a high-reflectivity coating to reduce the impact of secondary reflection on the internal temperature sensor probe 6.

[0024] As a preferred solution of the present invention, the material of the first light shading plate 1 and the second light shading plate 2 is metal, the surface of the first light shading plate 1 and the second light shading plate 2 close to each other is provided with a high absorption coating, and the surface of the first light shading plate 1 and the second light shading plate 2 away from each other is provided with an aluminum film, so as to improve the reflectivity.

[0025] As a preferred solution of the present invention, the first heat-insulating fixing rod 7 and the second heat-insulating fixing rod 8 are made of plastic with a low heat transfer coefficient, which can effectively reduce heat pollution.

[0026] Experimental verification shows that under the same environmental conditions, the present invention can reduce the radiation error to the order of 0.05°C, while the radiation error of the traditional instrument is as high as 1°C. It can be seen that the atmospheric temperature measurement device involved in the present application reduces the radiation error. Compared with the traditional blade-type shutter box and ring-type radiation shield, the device involved in the present invention is smaller in size, lighter in weight, can reduce costs, has a relatively simple structure, and is easy to process, manufacture, maintain, install and clean.

[0027] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and simple improvements made to the essential contents of the present invention should be included in the protection scope of the present invention.

Claims

1. An atmospheric temperature measuring device, characterized in that: The invention comprises a first shading plate (1), a second shading plate (2), an outer guide plate (3), an inner guide plate (4), a guide body (5), a temperature sensor probe (6), a first heat-insulating fixing rod (7), a second heat-insulating fixing rod (8) and a third heat-insulating fixing rod (9), wherein the first heat-insulating fixing rod (7) and the second heat-insulating fixing rod (8) are symmetrically installed between the first shading plate (1) and the second shading plate (2), the outer guide plate (3), the inner guide plate (4) and the guide body (5) are installed on the first heat-insulating fixing rod (7) and the second heat-insulating fixing rod (8) in sequence from top to bottom, the bottom end of the third heat-insulating fixing rod (9) is fixedly connected to the second shading plate (2), the end of the third heat-insulating fixing rod (9) away from the second shading plate (2) passes through the guide body (5) and extends to the inside of the guide body (5), and the temperature sensor probe (6) is installed on the end of the third heat-insulating fixing rod (9) located inside the guide body (5); The central arc-shaped openings inside the outer guide plate (3) and the inner guide plate (4) point downwards towards the temperature sensor probe (6), and the arc-shaped opening at the upper end of the guide body (5) points towards the temperature sensor probe (6), so as to further increase the drainage effect. A ventilation slit is provided at the lower end of the guide body (5).

2. The atmospheric temperature measuring device according to claim 1, characterized in that: The inner surfaces of the outer guide plate (3), the inner guide plate (4) and the guide body (5) are smooth and coated with a high-absorption black coating, and the outer surface of the guide body (5) is provided with a high-reflectivity coating.

3. The atmospheric temperature measuring device according to claim 1, characterized in that: The material of the first light shielding plate (1) and the second light shielding plate (2) is metal; the surfaces of the first light shielding plate (1) and the second light shielding plate (2) close to each other are provided with a high-absorption coating; and the surfaces of the first light shielding plate (1) and the second light shielding plate (2) away from each other are provided with an aluminum film.

4. The atmospheric temperature measuring device according to claim 1, characterized in that: The first heat-insulating fixing rod (7) and the second heat-insulating fixing rod (8) are made of plastic with a low heat transfer coefficient.

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