CN114216604A - Wind power measuring device and method for ground wire of power transmission line - Google Patents
Wind power measuring device and method for ground wire of power transmission line Download PDFInfo
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- G—PHYSICS
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- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
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Abstract
The invention provides a wind power measuring device and method for a ground wire of a power transmission line, which comprises the following steps: the system comprises a ground wire, a high-frequency force-measuring balance module, a miniature weather station and at least two upright posts; the top of each upright post is fixedly provided with one high-frequency force-measuring balance module and the miniature weather station; every two upright posts are connected together through a ground wire connected with the high-frequency force-measuring balance module; the at least two upright posts are fixed on the foundation, and the axes of the ground wires on the two upright posts are vertical to the main wind direction. The invention realizes the synchronous measurement of the wind field and the wind load of the ground wire through the high-frequency force measuring balance module and the micro meteorological station.
Description
Technical Field
The invention relates to the field of wind power measurement, in particular to a device and a method for measuring wind power of a ground wire of a power transmission line.
Background
Under the excitation of wind load, the ground wire of the power transmission line can generate wind-induced vibration in different forms, and the phenomenon of wind vibration of the ground wire becomes a main disaster form which harms the safe and stable operation of the power transmission line. Since the beginning of the new century, with the rapid expansion of the construction scale of power grids and the continuous change of climatic environment, the wind vibration disaster phenomenon of the lead and ground wires is more serious, and the safe and stable operation of the lines is threatened almost every year. Typical wind-induced disaster phenomena of the ground wire include breeze vibration, windage yaw, galloping, subspan oscillation, wind swing and the like. The related statistical data show that in recent years, the damage caused by wind load occurs to the transmission lines for thousands of times, so that the serious economic loss and social influence are caused.
The correlation between the wind field and the wind power is the foundation of the wind resistance design and the wind damage prevention and control of the power transmission line. In order to master the actual wind force bearing condition of the ground wire, the aerodynamic coefficient is determined by a wind tunnel test of a ground wire truncation model and then is obtained by multiplying the field basic wind pressure, so that the actual wind force bearing condition of the ground wire cannot be accurately obtained.
Disclosure of Invention
In order to solve the problem that the actual wind force borne by the ground wire cannot be accurately obtained in the prior art, the invention provides a wind force measuring device for the ground wire of the power transmission line, which comprises: the device comprises a ground wire (1), a high-frequency force-measuring balance module (2), a micro meteorological station (3) and at least two upright posts (4);
the top of each upright post (4) is fixed with one high-frequency force-measuring balance module (2) and the miniature weather station (3);
every two upright posts (4) are connected together through a ground wire (1) connected with the high-frequency force-measuring balance module (2);
the at least two upright posts (4) are fixed on the foundation, and the axes of the ground wires (1) on the two upright posts (4) are vertical to the main wind direction.
Preferably, the high-frequency load cell balance module (2) comprises: a fixing plate, a high-frequency force measuring balance and a clamping groove (5);
the clamping groove (5) and the high-frequency force measuring balance are both fixed on the fixing plate;
the top of the ground wire (1) is connected with the high-frequency force measuring balance, and the end part of the ground wire is clamped in the clamping groove (5);
the fixing plate is fixed on the top of the upright post (4).
Preferably, the measuring range of the high-frequency force balance is determined by the following formula:
Wi＝β·μs·μz·d·Lp·W0
in the formula, beta is the uneven coefficient of wind pressure; mu.ssIs the conductor-ground line shape coefficient; mu.szIs the wind pressure height variation coefficient; d is the diameter of the ground wire; l ispThe length of the ground wire is; w0In order to test the local basic wind pressure standard value, rho is the air density, and V is the basic wind speed;
preferably, the wind pressure height variation coefficient mu iszCalculated as follows:
μz＝C0·(hconducting wire/hz)α
In the formula, hConducting wireThe ground wire is at the height above the ground; alpha, C0Determining according to four types of landforms in the specification; h iszIs a reference height.
Preferably, the microclimate station (3) comprises: the device comprises a three-dimensional wind speed and direction sensor, an atmospheric pressure sensor, a humidity sensor, a precipitation sensor and a support assembly;
the bracket component is rigidly connected to the top of the upright post (4);
the three-dimensional wind speed and direction sensor, the atmospheric pressure sensor, the humidity sensor and the precipitation sensor are all fixed on the support component.
Preferably, the bracket assembly comprises: the top of the upright post (4) is rigidly connected with an outrigger and a mounting plate fixed on the outrigger;
and the three-dimensional wind speed and direction sensor, the atmospheric pressure sensor, the humidity sensor and the precipitation sensor are all fixed on the mounting plate.
Preferably, when the number of the upright columns (4) is three, the connecting line of the third upright column and one of the other two upright columns is perpendicular to the connecting lines of the other two upright columns.
Preferably, the high-frequency force balance adopts an x, y and z three-dimensional force balance or an x and y two-dimensional force balance.
Preferably, the upright column (4) adopts a steel pipe support column or a variable cross-section reinforced concrete column.
Preferably, the foundation is a concrete independent foundation.
Preferably, the high-frequency force balance further comprises a protective cover arranged outside the high-frequency force balance module (2).
The invention also provides a wind power measuring method of the ground wire based on the same invention concept, which comprises the following steps:
arranging two upright columns (4) of the at least two upright columns (4) along a direction perpendicular to the main wind direction;
a high-frequency force-measuring balance module (2) is fixed on each upright post (4);
every two upright posts (4) are connected together through a ground wire (1) connected with the high-frequency force-measuring balance module (2);
the high-frequency force measuring balance module (2) measures the wind force borne by the ground wire (1);
the meteorological data are monitored in real time by the miniature meteorological stations (3) positioned on each upright post (4).
Preferably, the measuring of the wind force borne by the ground lead wire (1) by the high-frequency load cell balance module (2) comprises:
measuring the wind force born by the grounding wire (1) connected with the high-frequency force measuring balance in the high-frequency force measuring balance module (2);
the top of the ground wire (1) is connected with the high-frequency force measuring balance, and the end part of the ground wire is clamped in a clamping groove (5) of the high-frequency force measuring balance module (2);
the clamping groove (5) and the high-frequency force measuring antenna are averagely fixed on a fixing plate of the high-frequency force measuring balance module (2);
the fixing plate is fixed on the top of the upright post (4).
Preferably, the real-time monitoring of the meteorological data by the micro meteorological station (3) located on each upright post (4) comprises:
the three-dimensional wind speed and direction sensor, the atmospheric pressure sensor, the humidity sensor and the precipitation sensor of the micro meteorological station (3) are used for monitoring the wind speed, the wind direction, the temperature, the humidity and the atmospheric pressure in real time;
the three-dimensional wind speed and direction sensor, the atmospheric pressure sensor, the humidity sensor and the precipitation sensor are all positioned on a bracket component of the micro meteorological station (3);
the middle assembly is rigidly connected to the top of the upright post (4).
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a wind power measuring device for a ground wire of a power transmission line, which comprises: the system comprises a ground wire, a high-frequency force-measuring balance module, a miniature weather station and at least two upright posts; the top of each upright post is fixedly provided with one high-frequency force-measuring balance module and the miniature weather station; every two upright posts are connected together through a ground wire connected with the high-frequency force-measuring balance module; the at least two upright posts are fixed on the foundation, and the axes of the ground wires on the two upright posts are vertical to the main wind direction. The invention realizes the synchronous measurement of the wind field and the wind load of the ground wire through the high-frequency force measuring balance module and the micro meteorological station.
Drawings
FIG. 1 is a schematic structural view of a combined type of a ground wire wind measuring device of a power transmission line of the present invention;
FIG. 2 is a schematic structural diagram of a combined type II of the ground wire wind measuring device of the transmission line;
FIG. 3 is an enlarged schematic view of the high frequency load cell balance module structure of the present invention;
FIG. 4 is an enlarged schematic view of the micro weather station structure of the present invention.
Wherein, 1, a ground wire; 2. a high frequency force balance module; 3. a micro weather station; 4. a column; 5. a clamping groove.
Detailed Description
The invention discloses a device and a method for measuring wind power of a ground wire of a power transmission line, which solve the technical problem of synchronous field actual measurement of wind speed and wind power of a ground wire 1. The device realizes synchronous measurement of the wind field and the wind load of the ground wire 1, accumulates basic data for establishing the correlation between the wind speed and the wind power, and provides technical support for wind resistance design, risk assessment and wind damage prevention and control of the power transmission line. The device has the characteristics of clear measurement principle, simple structure, strong weather resistance and the like.
Example 1:
a wind power measuring device for a ground wire of a power transmission line is shown in figure 1: the method comprises the following steps: the device comprises a ground wire 1, a high-frequency force-measuring balance module 2, a micro weather station 3 and at least two upright posts 4;
the top of each upright post 4 is fixed with a high-frequency force-measuring balance module 2 and a micro meteorological station 3;
every two upright posts 4 are connected together through a ground wire 1 connected with the high-frequency force-measuring balance module 2;
at least two upright posts 4 are fixed on the foundation, and the axes of the ground wires 1 on the two upright posts 4 are vertical to the main wind direction.
The high frequency load cell balance module 2 comprises: a fixing plate, a high-frequency force measuring balance and a clamping groove 5;
the clamping groove 5 and the high-frequency force measuring antenna are averagely fixed on the fixing plate;
the top of the ground wire 1 is connected with the high-frequency force measuring balance, and the end part of the ground wire is clamped in the clamping groove 5;
the fixed plate is fixed on the top of the upright post 4.
The range of the high frequency force balance is determined by the following formula:
Wi＝β·μs·μz·d·Lp·W0
in the formula, beta is the uneven coefficient of wind pressure; mu.ssIs the conductor-ground line shape coefficient; mu.szIs the wind pressure height variation coefficient; d is the diameter of the ground wire; l ispThe length of the ground wire is; w0In order to test the local basic wind pressure standard value, rho is the air density, and V is the basic wind speed;
is the wind pressure height variation coefficient muzCalculated as follows:
μz＝C0·(hconducting wire/hz)α
In the formula, hConducting wireThe ground wire is at the height above the ground; alpha, C0Determining according to four types of landforms in the specification; h iszIs a reference height.
The micro weather station 3 includes: the device comprises a three-dimensional wind speed and direction sensor, an atmospheric pressure sensor, a humidity sensor, a precipitation sensor and a support assembly;
the bracket component is rigidly connected to the top of the upright post 4;
the three-dimensional wind speed and direction sensor, the atmospheric pressure sensor, the humidity sensor and the precipitation sensor are all fixed on the support component.
The bracket assembly includes: the outer extending support is rigidly connected with the top of the upright post 4, and the mounting plate is fixed on the outer extending support;
the three-dimensional wind speed and direction sensor, the atmospheric pressure sensor, the humidity sensor and the precipitation sensor are all fixed on the mounting plate.
The upright post 4 adopts a steel pipe support or a variable cross-section reinforced concrete column.
The foundation adopts a concrete independent foundation.
The wind power measuring device for the ground wire of the power transmission line is described in detail as follows:
a wind power measuring device for a ground wire of a power transmission line is composed of a ground wire 1, a high-frequency force measuring balance module 2, a miniature weather station 3 and a stand column 4. The ground wire 1 is connected with the two upright posts 4 through a force measuring balance to form a simple supporting beam system. The end part of the ground wire 1 is limited by a clamping groove 5, so that the ground wire 1 is ensured to move in a certain linear range.
And the device also comprises an accessory facility, namely a finger connecting mechanism in the embodiment.
Two ends of the ground wire 1 are respectively connected with a force measuring balance module.
The bottom of the high-frequency force-measuring balance module 2 is fixed on the top of the upright post 4, and the top is connected with the ground wire 1.
The miniature weather station 3 is arranged at the top end of the upright post 4 and is rigidly connected with the upright post 4, and keeps the same height with the ground wire 1.
The ground wire 1 is not limited in type and not less than 2m in length.
The high frequency load cell balance module 2, as shown in fig. 3, comprises: a fixing plate, a high-frequency force measuring balance and a clamping groove 5;
the clamping groove 5 and the high-frequency force measuring antenna are averagely fixed on the fixing plate;
the top of the ground wire 1 is connected with the high-frequency force measuring balance, and the end part of the ground wire is clamped in the clamping groove 5;
the fixed plate is fixed on the top of the upright post 4.
When two upright posts 4 are adopted, the ground lead wire 1 is connected with the two upright posts 4 through a high-frequency force measuring balance to form a simple straight-shaped supporting beam system. At the moment, the high-frequency force measuring balance can only select the x, y and z three-dimensional force measuring balance, and the high-frequency force measuring balance can measure the force and the moment F in the x, y and z directionsx、Fy、Fz、Mx、My、Mz。
When three upright posts 4 are adopted, as shown in fig. 2, the ground wire 1 is connected with the three upright posts 4 through the high-frequency force measuring balance to form a simple beam system, and the plane of the transmission line ground wire wind measuring device is L-shaped. The high-frequency force balance can adopt an x, y and z three-dimensional force balance or an x and y two-dimensional force balance.
The measuring range of the high-frequency force measuring balance is determined by adopting the following formula according to different types of the ground wires:
Wi＝β·μs·μz·d·Lp·W0 (1)
in the formula: beta-the uneven coefficient of wind pressure, 1.0 is taken;
μs-taking the shape coefficient of the ground wire to be 1.2;
μz-height coefficient of variation of wind pressure, μz＝C0·(hConducting wire/hz)αIn the formula, alpha and C0Determined according to four types of landforms in the norm, hConducting wireIs the ground clearance (m), h) of the ground wirezIs a reference height (m);
d is the diameter of the ground wire, m;
Lp-length of ground wire, m;
W0-testing the local basic wind pressure standard value (kN/m2), W0＝0.5ρV2ρ is the air density (kg/m3) and V is the base wind speed (m/s).
The force measuring precision of the high-frequency force measuring balance is not more than 0.1N, and the sampling frequency is not lower than 500 Hz.
The micro meteorological station is shown in figure 4 and comprises three-dimensional wind speed and direction, atmospheric pressure, humidity, precipitation sensors and an outrigger;
the outrigger keeps the same direction with one ground wire 1 and has the length of about 40 cm-60 cm.
The sampling frequency of the wind speed and direction sensor is not lower than 10 Hz.
The upright post 4 has enough bearing capacity and wind resistance, and is preferably a steel pipe support post or a variable cross-section reinforced concrete column.
The height of the upright 4 is preferably 5m or 10m, and the strength and rigidity of the upright 4 can be ensured by a stay wire if necessary.
The foundation of the upright 4 is preferably a concrete independent foundation.
Example 2:
the invention provides a wind power measurement method of a ground wire, which comprises the following steps:
arranging two upright columns 4 of the at least two upright columns 4 along the direction vertical to the main wind direction;
a high-frequency force measuring balance module 2 is fixed on each upright post 4;
every two upright posts 4 are connected together through a ground wire 1 connected with the high-frequency force-measuring balance module 2;
measuring the wind power borne by the ground lead wire 1 by a high-frequency force measuring balance module 2;
the meteorological data is monitored in real time by the micro meteorological stations 3 located on each of the uprights 4.
The method comprises the following specific steps:
s1, installing a ground wire 1 wind force measuring device near the line, wherein the axis of the ground wire 1 is vertical to the main wind direction, and the local main wind direction is set to be the x direction, the axial direction of the ground wire 1 is the y direction, and the vertical ground direction is the z direction;
s2, monitoring the wind speed (v) in real time by adopting the micro meteorological station 3x、vy、vz) Meteorological data such as wind direction, temperature, humidity, atmospheric pressure and the like;
s3, measuring F in real time by using a force measuring balancex、Fy、Fz、Mx、My、MzThree component forces and moments;
s4, establishing the correlation between wind speed and force (needing to be established by actual measurement results)
i is x, y, z.
Example 3
1. As shown in figure 1, the wind power measuring device for the ground wire of the power transmission line comprises a ground wire 1, a high-frequency force measuring balance module 2, a micro weather station 3, a stand column 4 and accessory facilities.
2. Based on the above 1, as shown in fig. 2, the ground wire 1 is connected with two columns 4 through a high-frequency force balance to form a simply supported beam system, and the plane of the device is L-shaped and is used for wind measurement of the ground wire under the condition that the main wind direction is not obvious. Two lead ground wires 1 and be 90 contained angles, wherein one lead ground wire 1 axial and local leading wind direction parallel arrangement. The local main wind direction is set to be the x direction.
3. Based on the above 1 and 2, the ground wire 1 is not limited in type and not less than 2m in length.
4. Based on the above 1 and 2, the end part of the ground wire 1 is limited by the clamping groove 5, so that the ground wire 1 is ensured to move within a certain linear range.
5. Based on the above 1 and 2, the bottom of the force measuring balance module 2 is fixed on the top of the upright post 4, and the top 2 is connected with the ground wire 1. The outside is wrapped up by the protection casing, prevents directly to cover ice and snow.
6. Based on the above 1, 2 and 5, the high-frequency force balance module 2 can measure the force and the moment F in the x, y and z directionsx、Fy、Fz、Mx、My、Mz。
7. Based on the above 1, 2, 5 and 6, the range of the high-frequency force measuring balance is determined by adopting the following formula for different types of the ground wires:
Wi＝β·μs·μz·d·Lp·W0
in the formula:beta is the uneven coefficient of wind pressure, and 1.0 is taken; mu.ssTaking 1.2 as the shape coefficient of the conductive wire; mu.szIs the coefficient of variation of the wind pressure height, muz＝C0·(hConducting wire/hz)αIn the formula, alpha and C0Determined according to four types of landforms in the norm, hConducting wireIs the ground clearance (m), h) of the ground wirezIs a reference height (m); d is the diameter of the ground wire, m; l ispM is the length of the ground wire; w0For testing the standard value of local basic wind pressure (kN/m2), W0＝0.5ρV2ρ is the air density (kg/m3) and V is the base wind speed (m/s).
8. Based on the steps 1, 2 and 7, the force measuring precision of the high-frequency force measuring balance is not more than 0.1N, and the sampling frequency is not lower than 500 Hz.
9. Based on the above 1 and 2, the micro weather station 3 is installed on the outrigger at the top end of the upright post 4, and keeps the same height with the ground wire 1.
10. Based on the above 1 and 9, the micro weather station 3 comprises three-dimensional wind speed and direction, atmospheric pressure, humidity and precipitation sensors, and the sampling frequency of the wind speed and direction sensors is not lower than 10 Hz.
11. Based on the above 1 and 2, the upright post 4 has sufficient bearing capacity and wind resistance, and is preferably a steel pipe support or a variable cross-section reinforced concrete column.
12. Based on the above 1, 2 and 11, the height of the upright 4 is preferably 5m or 10m, and the strength and rigidity of the bracket can be ensured by the stay wire if necessary.
13. Based on the above 1, 2, 11, 12, the foundation of the upright is preferably a concrete independent foundation.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The present invention is not limited to the above embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention are included in the scope of the claims of the present invention.
Claims (14)
1. The utility model provides a transmission line leads ground wire anemometry device which characterized in that includes: the device comprises a ground wire (1), a high-frequency force-measuring balance module (2), a micro meteorological station (3) and at least two upright posts (4);
the top of each upright post (4) is fixed with one high-frequency force-measuring balance module (2) and the miniature weather station (3);
every two upright posts (4) are connected together through a ground wire (1) connected with the high-frequency force-measuring balance module (2);
the at least two upright posts (4) are fixed on the foundation, and the axes of the ground wires (1) on the two upright posts (4) are vertical to the main wind direction.
2. The device according to claim 1, characterized in that the high-frequency load cell balance module (2) comprises: a fixing plate, a high-frequency force measuring balance and a clamping groove (5);
the clamping groove (5) and the high-frequency force measuring balance are both fixed on the fixing plate;
the top of the ground wire (1) is connected with the high-frequency force measuring balance, and the end part of the ground wire is clamped in the clamping groove (5);
the fixing plate is fixed on the top of the upright post (4).
3. The apparatus of claim 2, wherein the span of the high frequency load cell is determined by:
Wi＝β·μs·μz·d·Lp·W0
in the formula, beta is the uneven coefficient of wind pressure; mu.ssIs the conductor-ground line shape coefficient; mu.szIs the wind pressure height variation coefficient; d is the diameter of the ground wire; l ispThe length of the ground wire is; w0In order to test the local basic wind pressure standard value, rho is the air density, and V is the basic wind speed.
4. The apparatus of claim 3, wherein said is a wind pressure altitude change coefficient μzCalculated as follows:
μz＝C0·(hconducting wire/hz)α
In the formula, hConducting wireThe ground wire is at the height above the ground; alpha, C0According to four types of landforms in the specificationDetermining; h iszIs a reference height.
5. The apparatus according to claim 1, characterized in that said microclimate station (3) comprises: the device comprises a three-dimensional wind speed and direction sensor, an atmospheric pressure sensor, a humidity sensor, a precipitation sensor and a support assembly;
the bracket component is rigidly connected to the top of the upright post (4);
the three-dimensional wind speed and direction sensor, the atmospheric pressure sensor, the humidity sensor and the precipitation sensor are all fixed on the support component.
6. The apparatus of claim 5, wherein the bracket assembly comprises: the top of the upright post (4) is rigidly connected with an outrigger and a mounting plate fixed on the outrigger;
and the three-dimensional wind speed and direction sensor, the atmospheric pressure sensor, the humidity sensor and the precipitation sensor are all fixed on the mounting plate.
7. A device according to claim 2, characterized in that when the number of said uprights (4) is three, the line connecting the third one of said uprights to one of the other two uprights is perpendicular to the line connecting the other two uprights.
8. The apparatus of claim 7, wherein the high frequency load cell balance is an x, y, z three-dimensional load cell balance or an x, y two-dimensional load cell balance.
9. The device according to claim 1, characterized in that the columns (4) are steel tube columns or columns of variable section reinforced concrete.
10. The apparatus of claim 1, wherein the foundation is a concrete free-standing foundation.
11. The device according to claim 1, further comprising a protective cover arranged outside the high-frequency load cell balance module (2).
12. A wind power measurement method for a ground wire is characterized by comprising the following steps:
arranging two upright columns (4) of the at least two upright columns (4) along a direction perpendicular to the main wind direction;
a high-frequency force-measuring balance module (2) is fixed on each upright post (4);
every two upright posts (4) are connected together through a ground wire (1) connected with the high-frequency force-measuring balance module (2);
the high-frequency force measuring balance module (2) measures the wind force borne by the ground wire (1);
the meteorological data are monitored in real time by the miniature meteorological stations (3) positioned on each upright post (4).
13. The method according to claim 12, wherein said measuring by said high frequency load cell balance module (2) the wind force to which said ground wire (1) is subjected comprises:
measuring the wind force born by the grounding wire (1) connected with the high-frequency force measuring balance in the high-frequency force measuring balance module (2);
the top of the ground wire (1) is connected with the high-frequency force measuring balance, and the end part of the ground wire is clamped in a clamping groove (5) of the high-frequency force measuring balance module (2);
the clamping groove (5) and the high-frequency force measuring antenna are averagely fixed on a fixing plate of the high-frequency force measuring balance module (2);
the fixing plate is fixed on the top of the upright post (4).
14. The apparatus according to claim 12, wherein the real-time monitoring of the meteorological data by the microclimate station (3) located on each post (4) comprises:
the three-dimensional wind speed and direction sensor, the atmospheric pressure sensor, the humidity sensor and the precipitation sensor of the micro meteorological station (3) are used for monitoring the wind speed, the wind direction, the temperature, the humidity and the atmospheric pressure in real time;
the three-dimensional wind speed and direction sensor, the atmospheric pressure sensor, the humidity sensor and the precipitation sensor are all positioned on a bracket component of the micro meteorological station (3);
the middle assembly is rigidly connected to the top of the upright post (4).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116989977A (en) * | 2023-08-28 | 2023-11-03 | 哈尔滨工业大学 | Non-intervention type large-scale flow characteristic measurement method and measurement system in natural wind tunnel |
| CN117906903A (en) * | 2024-03-18 | 2024-04-19 | 中国空气动力研究与发展中心超高速空气动力研究所 | Micro aerodynamic resistance measuring device and use method thereof |
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2021
- 2021-11-24 CN CN202111406218.3A patent/CN114216604A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116989977A (en) * | 2023-08-28 | 2023-11-03 | 哈尔滨工业大学 | Non-intervention type large-scale flow characteristic measurement method and measurement system in natural wind tunnel |
| CN116989977B (en) * | 2023-08-28 | 2024-06-11 | 哈尔滨工业大学 | Non-intervention type large-scale flow characteristic measurement method and measurement system in natural wind tunnel |
| CN117906903A (en) * | 2024-03-18 | 2024-04-19 | 中国空气动力研究与发展中心超高速空气动力研究所 | Micro aerodynamic resistance measuring device and use method thereof |
| CN117906903B (en) * | 2024-03-18 | 2024-05-17 | 中国空气动力研究与发展中心超高速空气动力研究所 | Micro aerodynamic resistance measuring device and use method thereof |
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