Radar wave measurement instrument

Abstract

The present invention discloses a radar wave measuring instrument, belonging to the technical field of wave measurement. The instrument includes: a radar probe and a platform. The radar probe is installed on the platform. A plate body is provided below the platform. A bracket is provided at the center of the bottom of the platform. Rod assemblies are evenly arranged on the side of the bracket. Any rod assembly is connected to the plate body. A radar probe is provided on one side of the plate body close to the bracket. The detection end of the radar probe is located below the platform and is arranged downward. The rod assemblies are located between adjacent radar probes. The present invention can adapt to complex sea conditions, reduce the interference of air flow on the detection signal, and improve the wave measurement accuracy and stability.

Description

Technical Field

[0001] The present invention belongs to the technical field of wave measurement, and particularly relates to a radar wave measuring instrument. Background Art

[0002] With the rapid development of the marine economy, human maritime activities are increasing day by day. Natural disasters such as typhoons and storm surges have a significant impact on the pace of ocean development and utilization. The occurrence of natural disasters such as typhoons and storm surges is bound to cause changes in marine observation elements. It is necessary to carry out forecasting, prevention, disaster prevention, and mitigation work on natural disasters by observing marine observation elements. Among many marine observation elements, waves are the most important and complex one, and are also one of the important contents of physical oceanography research. They are one of the important input parameters in the fields of ocean forecasting, ocean engineering, disaster prevention and mitigation, maintenance of maritime rights and interests, and navigation safety.

[0003] Ocean waves contain huge energy. They can make ships sway or even cause shipwreck accidents. They are extremely harmful to offshore operations and have great destructive effects on coastal protection, port terminals, etc. The research and application of using radar wave measuring instruments to conduct ocean wave measurement can effectively monitor wave information at sea and conduct sea condition forecasting, thus helping to improve the disaster prevention capabilities of ports, contributing to reducing losses of coastal ports under extreme disaster conditions, and providing guarantees for the safety of production operations and the lives and property of personnel at coastal ports and terminals, which is of great significance.

[0004] The Korean invention patent with the application number KR1020230031032A discloses a wave measuring buoy with a solar cell. The wave measuring buoy includes: a floating body that floats on the water surface by buoyancy; a controller that is connected to the floating body to measure the wave height of the water surface where the floating body floats and control the generation of electric energy; and a buffer part that is installed on the floating body to disperse or absorb the impact applied to the floating body from the outside, so that it can be stably positioned on the water surface to accurately measure the wave height, and accurately locate a ship in navigation by increasing the radar reflection area. When existing radar wave measuring devices are applied to the side of a ship hull, due to the large differences in the marine air pressure environment, the influence of air flow on the wave measuring device is relatively large, affecting the stability of wave measurement. Summary of the Invention

[0005] The purpose of the present invention is to provide a radar wave measuring instrument with high installation adaptability and capable of stably and efficiently measuring waves.

[0006] The technical solution adopted by the present invention to achieve the above purpose is as follows:

[0007] A radar wave measuring instrument, comprising: a radar probe and a platform. The radar probe is installed on the platform. A plate body is provided below the platform. A bracket is provided at the center of the bottom of the platform. Rod assemblies are evenly distributed on the side of the bracket. Any rod assembly is connected to the plate body. The radar probe is provided on one side of the plate body close to the bracket. The platform is arranged on the side of the hull. Multiple radar probes form a detection area. Radar waves are transmitted to and received from the sea surface through each radar probe, facilitating the calculation of wave direction, wave height, wave period and other wave characteristic elements within the detection area; the plate body is arranged around the radar probe through the rod assemblies. The plate body reduces the atmospheric fluctuations around the radar probe inside it by blocking the lateral airflow at sea, thereby reducing the fluctuations of the air density around the radar probe, further reducing the interference of the air density fluctuations on the radar waves, improving the anti-interference ability of the radar probe under severe sea conditions, contributing to improving the accuracy of the radar probe in transmitting radar waves and receiving reflected radar waves, and improving the measurement accuracy of the wave measuring instrument for the characteristics of sea wave elements;

[0008] Preferably, the detection end of the radar probe is located below the platform and is arranged downward. The rod assemblies are located between adjacent radar probes. The rod assemblies are arranged between adjacent radar probes to prevent the rod assemblies from blocking the radar waves emitted by the radar probes and avoid affecting the wave measurement results of the instrument; the rod assemblies are arranged between adjacent radar probes. Since the rod assemblies are evenly distributed on the side of the bracket and the bracket is located in the middle of the platform, the radar probes are evenly arranged on the platform. With the evenly distributed rod assemblies, the overall center of gravity of the instrument is on the bracket at the center of the platform, which is beneficial to improving the stability of the instrument arranged on the side of the hull. At the same time, it is also convenient for the overall instrument to be stably placed horizontally on the ground and on the deck after disassembly, improving the stability of the instrument storage and placement.

[0009] Preferably, the bracket includes a rod body. The rod body is provided at the center of the bottom of the platform. A base is provided at the upper part of the rod body. A slip ring is sleeved on the lower part of the rod body. One end of the rod assembly is movably connected to the base, and the other end of the rod assembly is movably connected to the slip ring.

[0010] Preferably, a spring is fixedly connected between the base and the slip ring. The spring is sleeved on the rod body.

[0011] Preferably, the rod assembly includes a first connecting rod and a second connecting rod, one end of the first connecting rod is hinged to the base, one end of the second connecting rod is hinged to the sliding ring, the first connecting rod and the second connecting rod are movably connected at the non-hinged end and form an angle close to the rod body, and the plate body is installed on the side of the first connecting rod away from the rod body. The spring realizes the elastic connection between the base and the slip ring. Under severe sea conditions, the lateral airflow is fast and acts on the plate, so that the first connecting rod swings downward at the hinge with the base. At the same time, the first connecting rod and the second connecting rod swing relative to each other, so that the slip ring hinged to the second connecting rod slides up and down on the rod body and stretches the spring. In this process, the plate body approaches the detection end at the bottom of the radar probe and gradually approaches the vertical state, thereby improving the blocking effect of strong lateral airflow, thereby improving the anti-interference ability of the plate body to radar waves. At the same time, the downward swinging plate body can improve the ability to guide the airflow upward, reduce the lateral impact interference of the airflow on the platform and the radar probe, thereby reducing the possibility of the radar probe carried by the platform shaking, reducing the possibility of the position change of the radar wave signal, improving the accuracy of the instrument's data measurement of ocean waves under severe sea conditions, and improving the hull's early warning speed of ocean wave changes, which is conducive to improving the safety of navigation;

[0012] When airflows of different intensities act on the plate, the swing amplitude of the first connecting rod relative to the base is different, resulting in different angles formed by the first connecting rod and the second connecting rod. At the same time, the change in the distance of the slip ring relative to the base causes different spring stretching lengths. That is, the above-mentioned plate body can adjust its position relative to the radar probe according to the airflow velocity under different sea conditions, forming different blocking effects and upward diversion effects on the airflow, realizing adaptive adjustment of the plate body's protection capability, improving the adaptability of the instrument to complex ocean conditions, and also increasing the accuracy and stability of the radar probe in measuring wave data under complex sea conditions.

[0013] As the angle between the first connecting rod and the second connecting rod changes during relative movement, the slip ring moves away from and stretches the spring, that is, the impact force of the airflow on the plate body can be buffered by the tensile deformation of the spring, thereby further reducing the possibility of longitudinal shaking of the platform, improving the stability of the platform connected to the side of the hull, thereby stabilizing the height of the radar probe from the sea surface, improving the accuracy of the instrument's measurement of wave parameters, reducing the error of two adjacent measurement data, and reducing the possibility of misjudgment of ocean wave conditions.

[0014] Preferably, a limit head is provided at the bottom of the rod body, which is used to limit the slip ring from sliding down on the rod body, and the included angle is always smaller than the flat angle. The limit head is at the bottom of the rod body, which ensures that the slip ring will not separate from the rod body on the one hand, and prevents the spring from losing its deformation ability due to excessive stretching on the other hand, ensuring that the board can effectively adjust its attitude according to the sea conditions, improving the stability of the board's anti-interference ability, and extending the service life of the spring.

[0015] Preferably, there are at least three radar probes, which form a triangular array on the platform. The plate body can move and can form an occlusion on the side of the radar probe away from the bracket. When the radar probes form a triangular array, the three radar probes are arranged in a triangle, and the radar probes directly irradiate downward, which is suitable for use when the measuring instrument is far from the sea surface. The triangular array can obtain a standard radar reflection area close to an equilateral triangle, which is convenient for calculating various wave characteristic elements such as wave direction, wave height, and wave period within the radar reflection area.

[0016] Preferably, a through hole is provided at the center of the platform. The top of the rod body has an assembly part passing through the through hole. The outer wall surface of the assembly part has an external thread. The platform is provided with an assembly ring, and the inner wall of the assembly ring has a thread groove, and the external thread cooperates with the thread groove. Through the cooperation of the external thread of the assembly part and the internal thread of the assembly ring, the lifting adjustment of the rod body at the center of the platform is realized, so as to realize the adjustment of the position of the rod assembly and the plate body relative to the platform, which is convenient for the adaptation of the plate body and the radar probe when radar probes of different sizes and specifications are installed on the platform, and avoids interference between the plate body and the radar probe during the swinging process, expanding the adaptation range of the instrument to different radar probes.

[0017] Preferably, the first connecting rod is always located above the second connecting rod. An installation frame is provided on the side of the first connecting rod away from the rod body. The plate body is detachably installed on the installation frame.

[0018] Preferably, a coating is applied to the surface of the plate body close to the rod body, and the coating is used to absorb radar electromagnetic waves. Since the radar probes are arranged in an array, when the radar reflection areas formed by multiple radar probes receive the reflected radar wave signals, some of the reflected signals are likely to spread outward away from the bracket. Without turning off the radar probes, some of the radar wave signals that escape after reflection are likely to affect the bodies of nearby personnel. The coating on the side of the plate body close to the radar probe can absorb some of the reflected signal waves that spread outward. That is, without turning off the radar probes, it is also possible to visually inspect the platform and adjust the installation position relatively safely, reducing the energy consumption caused by turning on and off the radar probes and improving the safety of personnel inspection and adjustment.

[0019] The present invention has the following beneficial effects compared with the prior art: The setting of the plate body weakens the influence of air flow on radar waves under severe sea conditions by reducing atmospheric fluctuations, improving the accuracy of sea wave measurement; the plate body can adjust its attitude according to air flow under different sea conditions, realizing the adaptive adjustment of the protection ability of the plate body and enhancing the adaptability of the instrument to complex ocean conditions; when the plate body is close to the radar probe and gradually approaches the vertical, the blocking effect on the lateral strong air flow is improved, thereby enhancing the anti-interference ability of the plate body to radar waves; the swinging of the plate body improves the ability to guide the air flow upward, reducing the possibility of the radar probe carried by the platform jittering and increasing the early warning speed of the hull to ocean wave changes; the rod assembly can adjust the position of the plate body relative to the platform through threaded connection, expanding the adaptation range of the instrument to different radar probes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of a radar wave measurement instrument;

[0021] Figure 2 is a schematic diagram of the connection position of the bracket and the rod assembly;

[0022] Figure 3 is a top view of a radar wave measurement instrument;

[0023] Figure 4 is a schematic diagram of the connection between the rod assembly and the plate body;

[0024] Figure 5 is a side view of the rod assembly and the rod body;

[0025] Figure 6 is Figure 1 an enlarged schematic diagram of area A in

[0026] Figure 7 is a schematic diagram of the positions of the laser transmitter and the laser receiver in the second embodiment of the present invention.

[0027] Reference numerals in the drawings: radar probe 1; platform 2; assembly ring 21; plate body 3; coating 31; bracket 4; rod body 41; base 42; slip ring 43; spring 44; assembly part 410; rod assembly 5; first connecting rod 51; second connecting rod 52; mounting bracket 53; limiting head 6; base 7; laser transmitter 8; laser receiver 9. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The technical solutions of the present invention will be further described in detail below in conjunction with the specific embodiments and the drawings:

[0029] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0030] Embodiment 1:

[0031] See the appendix Figure 1 - appendix Figure 5 , a radar wave measuring instrument, including: a radar probe 1 and a platform 2, the radar probe 1 is installed on the platform 2, a plate body 3 is provided below the platform 2, a bracket 4 is provided at the center of the bottom of the platform 2, rod assemblies 5 are evenly distributed on the side of the bracket 4, any rod assembly 5 is connected to the plate body 3, and a radar probe 1 is provided on one side of the plate body 3 close to the bracket 4.

[0032] The platform 2 is connected with an extension rod on the side, and the platform 2 is horizontally installed on the side of the hull through the extension rod.

[0033] The platform 2 is arranged on the side of the hull, and multiple radar probes 1 form a detection area. By emitting and receiving radar waves to the sea surface through each radar probe 1, it is convenient to calculate wave characteristics such as wave direction, wave height, and wave period in the detection area; the plate body 3 is arranged outside the radar probe 1 through the rod assembly 5. The plate body 3 reduces the atmospheric fluctuation around the radar probe 1 inside it by blocking the lateral airflow at sea, thereby reducing the fluctuation of the air density around the radar probe 1, and further reducing the interference of the air density fluctuation on the radar wave, improving the anti-interference ability of the radar probe 1 under bad sea conditions, helping to improve the accuracy of the radar probe 1 in emitting radar waves and receiving reflected radar waves, and improving the measurement accuracy of the wave measuring instrument for the characteristics of sea wave elements;

[0034] The detection end of the radar probe 1 is located below the platform 2 and is arranged downward, and the rod assembly 5 is located between adjacent radar probes 1.

[0035] The rod assembly 5 is arranged between adjacent radar probes 1 to prevent the rod assembly 5 from blocking the radar waves emitted by the radar probe 1 and avoid affecting the wave measurement result of the instrument; the rod assembly 5 is arranged between adjacent radar probes 1. Since the rod assemblies 5 are evenly distributed on the side of the bracket 4 and the bracket 4 is located in the middle of the platform 2, the radar probes 1 are evenly arranged on the platform 2. Cooperating with the evenly distributed rod assemblies 5, the overall center of gravity of the instrument is on the bracket 4 at the center of the platform 2, which is beneficial to improving the stability of the instrument arranged on the side of the hull. At the same time, it is also convenient for the overall disassembly of the instrument to be stably placed horizontally on the ground and the deck, improving the stability of the instrument storage and placement.

[0036] The bracket 4 includes a rod body 41, the rod body 41 is arranged at the center of the bottom of the platform 2, a base 42 is provided at the upper part of the rod body 41, a slip ring 43 is sleeved on the lower part of the rod body 41, one end of the rod assembly 5 is movably connected to the base 42, and the other end of the rod assembly 5 is movably connected to the slip ring 43.

[0037] A spring 44 is fixedly connected between the base 42 and the slip ring 43, and the spring 44 is sleeved on the rod body 41.

[0038] The rod assembly 5 includes a first connecting rod 51 and a second connecting rod 52. One end of the first connecting rod 51 is hinged to the base 42, and one end of the second connecting rod 52 is hinged to the slip ring 43. The first connecting rod 51 and the second connecting rod 52 are movably connected at the non-hinged ends and form an angle close to the rod body 41. The plate body 3 is installed on the side of the first connecting rod 51 away from the rod body 41. The spring 44 realizes the elastic connection between the base 42 and the slip ring 43. In severe sea conditions, the lateral air flow is relatively fast and acts on the plate body 3, causing the first connecting rod 51 to swing downward at the hinge with the base 42. At the same time, the first connecting rod 51 and the second connecting rod 52 swing relative to each other, causing the slip ring 43 hinged to the second connecting rod 52 to slide downward on the rod body 41 and stretch the spring 44. During this process, the plate body 3 approaches the detection end at the bottom of the radar probe 1 and gradually approaches a vertical state, improving the blocking effect on the lateral strong air flow, thereby enhancing the anti-interference ability of the plate body 3 to radar waves. At the same time, the downward-swinging plate body 3 can improve the ability to guide the air flow upward, reduce the lateral impact interference of the air flow on the platform 2 and the radar probe 1, thereby reducing the possibility of the platform 2 carrying the radar probe 1 jittering, reducing the possibility of the position change of the radar wave signal emission, improving the accuracy of the instrument's measurement of ocean wave data in severe sea conditions, and improving the early warning speed of the hull to changes in ocean waves, which is beneficial to improving the safety of ship navigation;

[0039] When air flows of different intensities act on the plate body 3, the swinging amplitude of the first connecting rod 51 relative to the base 42 is different, causing the angle formed by the first connecting rod 51 and the second connecting rod 52 to be different. At the same time, the change in the distance between the slip ring 43 and the base 42 results in different stretching lengths of the spring 44. That is, the above-mentioned plate body 3 can adjust its position relative to the radar probe 1 according to the air flow velocity under different sea conditions, forming different blocking effects and upward diversion effects on the air flow, realizing the adaptive adjustment of the protection ability of the plate body 3, enhancing the adaptability of the instrument to complex ocean conditions, and at the same time increasing the accuracy and stability of the radar probe 1 in measuring wave data under complex sea conditions.

[0040] Since the angle changes when the first connecting rod 51 moves relative to the second connecting rod 52, and at the same time the slip ring 43 moves relatively far away and stretches the spring 44, it is possible to buffer the air flow impact force received by the plate body 3 through the stretching deformation of the spring 44, further reducing the possibility of the platform 2 jittering longitudinally, improving the stability of the connection of the platform 2 on the side of the hull, thereby stabilizing the height of the radar probe 1 from the sea surface, improving the accuracy of the instrument's measurement of wave parameters, reducing the error between adjacent two measurement data, and reducing the possibility of misjudging the ocean wave conditions.

[0041] Under good sea conditions, flying creatures over the ocean may stay above the platform 2. When the flying creatures stay on the platform 2, the plate 3 is in an expanded state away from the radar probe 1, which can prevent the flying creatures from damaging the detection end of the radar probe 1. At the same time, the lateral airflow can cause the plate 3 to carry the first connecting rod 51 to swing, and under the action of the spring 44, the plate 3 can swing back and forth on one side of the radar probe 1, thereby driving away the flying creatures, reducing the load on the platform 2, and stabilizing the layout stability of the platform 2 on the side of the hull.

[0042] A limit head 6 is provided at the bottom of the rod body 41 , and the limit head 6 is used to limit the slip ring 43 from sliding continuously downward on the rod body 41 , and the included angle is always smaller than the straight angle.

[0043] The limit head 6 is made of rubber material to reduce the impact interference when the slip ring hijacks the limit head 6.

[0044] The limit head 6 is at the bottom of the rod body 41. On the one hand, it ensures that the slip ring 43 will not separate from the rod body 41, and on the other hand, it prevents the spring 44 from losing its deformation ability due to excessive stretching, ensuring that the plate body 3 can effectively adjust its posture according to the sea conditions, improving the stability of the anti-interference ability of the plate body 3, and extending the service life of the spring 44.

[0045] The limit head 6 limits the range of the angle change by limiting the displacement distance of the slip ring 43, ensuring that the plate body 3 will not be blocked under the radar probe 1 due to the downward movement of the slip ring 43 to affect the emission of radar waves.

[0046] There are at least three radar probes 1, which form a triangular array on the platform 2. The plate 3 is movable, and the plate 3 can form a shield on the side of the radar probe 1 away from the bracket 4. When the radar probes 1 form a triangular array, the three radar probes 1 are arranged in a triangle, and the radar probes 1 are directly directed downward for illumination, which is suitable for deployment and use when the measuring instrument is far away from the sea surface. The triangular array can obtain a standard radar reflection area that is close to an equilateral triangle, which is convenient for calculating various wave characteristic elements such as wave direction, wave height, wave period, etc. in the radar reflection area.

[0047] See attached Figure 6 The platform 2 is provided with a through hole at the center, and the top of the rod body 41 is provided with an assembly part 410 passing through the through hole, and the outer wall of the assembly part 410 is provided with an external thread, and the platform 2 is provided with an assembly ring 21, and the inner wall of the assembly ring 21 is provided with a thread groove, and the external thread cooperates with the thread groove. Through the cooperation between the external thread of the assembly part 410 and the internal thread of the assembly ring 21, the lifting and lowering adjustment of the rod body 41 at the center of the platform 2 is realized, thereby realizing the adjustment of the position of the rod assembly 5 and the plate body 3 relative to the platform 2, facilitating the adaptation of the plate body 3 and the radar probe 1 when radar probes 1 of different sizes are installed on the platform 2, avoiding the interference between the plate body 3 and the radar probe 1 during the swinging process, and expanding the adaptation range of the instrument to different radar probes 1.

[0048] The first connecting rod 51 is always located above the second connecting rod 52. An installation bracket 53 is provided on the side of the first connecting rod 51 away from the rod body 41, and the plate body 3 is detachably installed on the installation bracket 53.

[0049] A coating 31 is applied to the surface of the plate body 3 on the side close to the rod body 41, and the coating 31 is used to absorb radar electromagnetic waves. Since the radar probes 1 are arranged in an array, when the radar reflection areas formed by the multiple radar probes 1 receive the reflected radar wave signals, some of the reflected signals are likely to diffuse outward away from the bracket 4. Without turning off the radar probes 1, some of the radar wave signals that escape after reflection are likely to affect the bodies of nearby personnel. The coating 31 on the side of the plate body 3 close to the radar probes 1 can absorb some of the reflected signal waves that diffuse outward. That is, without turning off the radar probes 1, it is also possible to visually inspect and adjust the installation position of the platform 2 relatively safely, reducing the energy consumption caused by turning on and off the radar probes 1 and improving the safety level of personnel inspection and adjustment.

[0050] Embodiment 2:

[0051] See the appendix Figure 7 , on the basis of Embodiment 1 of the present invention, a base 7 is provided at the bottom end of the limit head 6, and a laser transmitter 8 is installed below the base 7. A laser receiver 9 is provided on the side of the hull, and the positions of the laser transmitter 8 and the laser receiver 9 correspond to each other. The laser receiver 9 can always receive the laser emitted by the laser transmitter 8.

[0052] A guide rail is provided on the side of the hull, and the guide rail extends longitudinally. The laser receiver 9 is connected with a floating body, and the floating body can move longitudinally in the guide rail.

[0053] The floating body can always float on the sea surface.

[0054] The laser transmitter 8 emits ranging laser, which is received by the laser receiver 9, so as to obtain the height of the current platform 2 relative to the sea waves. Since the hull shakes under the influence of waves during static or sailing on the sea surface, resulting in the height position of the platform 2 relative to the sea surface always changing, affecting the measurement accuracy of the ocean wave parameters by the instrument. The laser receiver 9 always maintains its position on the sea surface through the floating body, and through the guide rail, the laser receiver 9 can always be directly below the laser transmitter 8, so that the laser emitted by the laser transmitter 8 can always be received by the laser receiver 9, realizing the real-time measurement of the height of the platform 2 relative to the sea surface. By combining the actual distance between the platform 2 and the sea surface with the wave element characteristics measured by the radar probes 1, the error caused by the hull shaking can be compensated, which helps to reduce the wave measurement error of the radar probes 1 caused by the hull shaking.

[0055] Since the radar probe 1 periodically emits radar waves and receives the reflected radar wave signals to measure the parameters of the sea waves, there is a time interval between two adjacent wave measurements. The real-time measurement of the current wave height is achieved through laser ranging, which is beneficial to the early warning of the sea waves with a relatively high change amplitude, avoiding the lag of the periodic wave measurement of the radar probe 1 that may cause the ship body to fail to timely avoid large sea waves due to the inability to detect the waves in time, improving the safety of ship navigation, and enhancing the timeliness of the instrument's early warning of the surging tides.

[0056] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A radar wave measurement instrument, comprising: Radar probe (1) and platform (2), the radar probe (1) is installed on the platform (2), and it is characterized in that: a plate body (3) is provided below the platform (2), a bracket (4) is provided at the center of the bottom of the platform (2), rod assemblies (5) are evenly arranged on the side of the bracket (4), any one of the rod assemblies (5) is connected to the plate body (3), and the radar probe (1) is located on the side of the plate body (3) close to the bracket (4). The bracket (4) includes a rod body (41), a base (42) is provided at the upper part of the rod body (41), and a slip ring (43) is sleeved on the lower part of the rod body (41). The rod assembly (5) includes a first connecting rod (51) and a second connecting rod (52). One end of the first connecting rod (51) is hinged to the base (42), one end of the second connecting rod (52) is hinged to the slip ring (43), the first connecting rod (51) and the second connecting rod (52) are movably connected at the non-hinged end and form an angle close to the rod body (41), and the plate body (3) is installed on the side of the first connecting rod (51) away from the rod body (41).

2. A radar wave measuring instrument according to claim 1, characterized in that: The detection end of the radar probe (1) is located below the platform (2) and is arranged downward, and the rod assembly (5) is located between adjacent radar probes (1).

3. A radar wave measurement instrument according to claim 1, characterized in that: The rod body (41) is arranged at the center of the bottom of the platform (2).

4. A radar wave measurement instrument according to claim 1, characterized in that: A spring (44) is fixedly connected between the base (42) and the slip ring (43), and the spring (44) is sleeved on the rod body (41).

5. A radar wave measurement instrument according to claim 1, characterized in that: A limit head (6) is provided at the bottom of the rod body (41), and the limit head (6) is used to limit the continuous downward sliding of the slip ring (43) on the rod body (41), and the angle is always less than a flat angle.

6. A radar wave measurement instrument according to claim 1, characterized in that: There are at least three radar probes (1), the radar probes (1) form a triangular array on the platform (2), the plate body (3) is movable, and the plate body (3) can form an occlusion on the side of the radar probe (1) away from the bracket (4).

7. A radar wave measurement instrument according to claim 1, characterized in that: A through hole is provided at the center of the platform (2), the top of the rod body (41) has an assembly portion (410) passing through the through hole, the outer wall surface of the assembly portion (410) has an external thread, the platform (2) is provided with an assembly ring (21), and the inner wall of the assembly ring (21) has a thread groove, and the external thread is matched with the thread groove.

8. A radar wave measuring instrument according to claim 1, characterized in that: The first connecting rod (51) is always located above the second connecting rod (52), and an installation frame (53) is provided on the side of the first connecting rod (51) away from the rod body (41), and the plate body (3) is detachably installed on the installation frame (53).

9. A radar wave measurement instrument according to claim 1, characterized in that: A coating is applied to the surface of the plate body (3) close to the rod body (41), and the coating is used to absorb radar electromagnetic waves.

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