KR101746437B1 - Two-dimensional vane using bimorphs - Google Patents

Two-dimensional vane using bimorphs Download PDF

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Publication number
KR101746437B1
KR101746437B1 KR1020150178143A KR20150178143A KR101746437B1 KR 101746437 B1 KR101746437 B1 KR 101746437B1 KR 1020150178143 A KR1020150178143 A KR 1020150178143A KR 20150178143 A KR20150178143 A KR 20150178143A KR 101746437 B1 KR101746437 B1 KR 101746437B1
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South Korea
Prior art keywords
wind
information
unit
wind speed
wind direction
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KR1020150178143A
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Korean (ko)
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전우진
류성욱
이성재
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한국원자력연구원
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/02—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring forces exerted by the fluid on solid bodies, e.g. anemometer

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)

Abstract

The present invention relates to a two-dimensional weather vane using a bimorph for measuring the wind strength by sensing a frequency of a vibrating member using a bimorph according to the intensity of the wind. In the vivarium for measuring the wind speed and the wind direction, A streamlined body (110) oriented in a loading direction; A tail 130 provided at an end of the streamlined body 110 and vibrated according to the strength of the wind; And a bimorph 120 provided between the streamlined body 110 and the tail 130 for sensing the frequency of the tail. Accordingly, there is an effect that the wind direction and the wind speed can be measured with a relatively simple principle.

Description

[0002] Two-dimensional vane using bimorphs [

The present invention relates to a two-dimensional weather vane using a bimorph, more particularly, to a two-dimensional weather vane using a bimorph for measuring the wind strength by sensing a frequency of a vibrating member using a bimorph .

The wind sensor is a sensor that includes an anemoscope and an anemometer, and is generally used as data for weather observation by specifying the wind direction and wind speed at the same time.

The weather vane is installed on the rooftop to measure the direction of wind blowing. It is also known as wind wind instrument and also called 風 風 機. The windcock on both ends of the head is unbalanced and is called weathercock in the West. Such a weather vane is the simplest of the vapor vanes, and is constructed on a bearing which is capable of rotating a single wind plate vertically around the axis and capable of minimizing the friction so as to exhibit its full function. The sidewall measuring the wind direction includes a double leaf anemoscope and a new cell anemometer. Two double leaf anemometers are attached to the rotating shaft to directly observe the wind direction. , And a cell-type weather vane is capable of remote observation and automatic recording by using an electric circuit by a cell-motor motor.

The anemometer is also called an anemometer. It is divided into an average (an average) anemometer and an anemometer (according to the purpose of measurement). The wind speed is measured according to the measurement principle, The wind speed anemometer, which is also known as a wind gauge, and the wind speed and wind speed are proportional to the wind speed when the wind turbine or propeller is rotated by the wind. The rotary anemometer used for most of the present weather observation, When an object touches the wind, the object is cooled. In this case, the object is classified into a hot wire anemometer (hot wire anemometer) that measures the degree of cooling and determines the wind speed. These anemometers should be able to measure weak wind speeds, and wind speeds and record values should be as straightforward as possible, and should follow the fluctuating wind speed. In addition, it should not affect the recorded value by the turbulence of the airflow, and it is important to select the point where the anemometer is not influenced by the terrain or building in the weather observation.

In the past, wind sensors were installed on the top of the weather observation equipment tower (about 10m) with a cross arm to fix the sensor, and a horizontal arm was used to level the cross arms. Using a compass, And the wind sensor was installed on both sides of the crossarm.

However, when the wind sensor is installed through such a process, it is dangerous and difficult to work because a person is raised and installed directly on the upper layer of the tower. In addition, it is difficult to calibrate the error because the horizontals are installed in the analog format because the horizontal line can not be adjusted accurately when a person looks at the eyes using the horizontal line. In addition, there is a disadvantage in that a person can not find a true north when looking at a person's eyes using a compass.

In this case, if the wind sensor can not be installed in a precise horizontal position, the wind direction vane is directed toward the inclined side of the wind direction sensor, and the wind speed cup rotates only after receiving more wind from the inclined side. It becomes inaccurate. As a result, if the wind sensor is not correctly installed horizontally, the error of the wind direction and wind speed measurement becomes large.

[Patent Document] Korean Patent No. 10-0910391

In order to solve such a problem, the present invention provides a two-dimensional weather vane using a bimorph for measuring the wind strength by sensing a frequency of a vibrating member using a bimorph according to wind strength. That is, the present invention measures the wind strength by measuring a frequency of a tail provided on a streamlined main body which freely moves according to the wind direction.

A two-dimensional weather vane using a bimorph according to an embodiment of the present invention is a weather vane for measuring wind speed and direction, comprising: a streamlined main body 110 oriented in a wind direction; A tail 130 provided at an end of the streamlined body 110 and vibrated according to the strength of the wind; And a bimorph 120 provided between the streamlined body 110 and the tail 130 for sensing the frequency of the tail.

As an embodiment related to the present invention, it may further include a tail jaw 140 provided at right angles to the tail 130 to increase the turbulence intensity occurring downstream.

As an embodiment related to the present invention, it may further include a hinge 150 provided at the front end of the streamlined main body 110 to allow the streamlined main body 110 to be rotated in the wind direction.

As an embodiment related to the present invention, a position measuring unit 160 for measuring and outputting the current position of the streamlined main body 110; And an air-direction sensing unit 170 that senses the air-direction based on the current position measured by the position measuring unit 160.

As an embodiment related to the present invention, the position measurement unit 160 may be a magnet, and the wind direction sensing unit 170 may be magnetic.

The present invention has the effect of measuring the wind direction and the wind speed on a relatively simple principle by measuring the frequency of the vibrating member by using bimorph and measuring the wind intensity according to the wind intensity.

Further, the present invention uses bismuth to measure the wind direction and wind speed, so that it is not only accurate in measurement, but also economically improves, so that the market can be preempted.

1 is a view for explaining a two-dimensional weather vane using a bimorph according to the present invention.
2 (a) and 2 (b) are views for explaining the operation principle of a two-dimensional weather vane using the bimorph according to the present invention.
3 is a schematic block diagram for processing a wind direction detection signal of a two-dimensional weather vane using a bimorph according to the present invention.

It is noted that the technical terms used in the present invention are used only to describe specific embodiments and are not intended to limit the present invention. In addition, the technical terms used in the present invention should be construed in a sense generally understood by a person having ordinary skill in the art to which the present invention belongs, unless otherwise defined in the present invention, Should not be construed to mean, or be interpreted in an excessively reduced sense. In addition, when a technical term used in the present invention is an erroneous technical term that does not accurately express the concept of the present invention, it should be understood that technical terms can be understood by those skilled in the art. In addition, the general terms used in the present invention should be interpreted according to a predefined or prior context, and should not be construed as being excessively reduced.

Furthermore, the singular expressions used in the present invention include plural expressions unless the context clearly dictates otherwise. In the present invention, terms such as "comprising" or "comprising" and the like should not be construed as encompassing various elements or various steps of the invention, Or may further include additional components or steps.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals refer to like or similar elements throughout the several views, and redundant description thereof will be omitted.

1 is a view for explaining a two-dimensional weather vane using a bimorph according to the present invention.

As shown in FIG. 1, a two-dimensional weather vane 100 using a bimorph for measuring the wind speed and the wind direction includes a streamlined body 110 oriented in a wind direction, A tail 130 which is provided at an end of the streamlined main body 110 and vibrates according to the intensity of the wind and a tail 130 which is provided at a right angle to the tail 130, A hinge 150 provided at a front end of the streamlined main body 110 to allow the streamlined main body 110 to rotate in a wind direction; And a wind direction detecting unit 170 for detecting wind direction based on the current position measured by the position measuring unit 160. The wind direction detecting unit 170 detects wind direction based on the current position measured by the position measuring unit 160. [

The position measuring unit 160 is a magnet, and the wind direction sensing unit 170 is magnetic.

The bimorph 120 and the position measuring unit 160 are connected by a signal line and the wind direction detecting unit 170 is also connected to a rear end component by a signal line.

The bimorph 120 is made of a thin and flexible material made of a PZT (Piezo) material.

The operation of the two-dimensional weather vane using the bimorph as described above will be described below.

( Bimorph  Dimensional weather vane)

2 (a) and 2 (b) are views for explaining the operation principle of a two-dimensional weather vane using the bimorph according to the present invention.

A two-dimensional weather vane 100 using a bimorph is rotatably coupled to a top end of a fixing member (which forms a long rod shape) provided at a place where a fluid (air) flows, by a hinge 150.

Since the two-dimensional weather vane 100 using the bimorph constitutes the streamlined main body 110, the flow resistance is small and the two-dimensional weather vane 100 using the bimorph is flexibly moved according to the direction of the wind.

2 (a)), when the wind direction is blown in a direction parallel to the two-dimensional weather vane 100 using the bimorph, the tail jaw 140 provided at the lower end of the streamlined body 110, And the tail 130 is vibrated.

Then, the bimorph 120 connected to the tail 130 measures the frequency generated by the tail 130, and outputs the measured frequency using a signal line. At this time, the position measuring unit 160 recognizes the current position of the two-dimensional weather vane 100 using the bimorph, that is, the ground plane and the horizontal direction (180 degrees), and generates and outputs a position sensing signal corresponding thereto. The unit 170 receives the position detection signal output through the position measurement unit 160 and outputs the position detection signal to the outside or stores the position detection signal in the storage unit.

As shown in FIG. 2B, when the wind direction is changed, a force of the streamlined main body 110 to move in the wind direction acts on the streamlined main body 110, and this force is transmitted to the hinge 150, So that the streamlined main body 110 forms a horizontal direction with respect to the wind direction. At this time, the position measuring unit 160 recognizes the current position of the two-dimensional weather vane 100 using the bimorph, generates a position sensing signal corresponding thereto, and outputs the position sensing signal.

The wind direction sensing unit 170 receives the position sensing signal output through the position sensing unit 160 and outputs the sensed position signal to the outside or stores the sensed signal in a storage unit.

( Wind direction detection signal  process)

3 is a schematic block diagram for processing a wind direction detection signal of a two-dimensional weather vane using a bimorph according to the present invention.

As shown in FIG. 3, the wind direction is detected based on the current position measured by the position measuring unit 160, which stores the wind direction information and the wind speed information as identification information, and outputs the detected wind direction to the control unit 220 A wind speed sensing unit 170 and a wind speed sensing unit 270 receiving a frequency sensed by the bimorph 120 and sensing the wind speed and outputting the sensed wind speed to the control unit 220. The wind speed sensing unit 170, And a control unit 220 for storing the wind direction information and the wind speed information inputted through the input unit 270 in the storage unit 210 as time information as identification information and outputting the information through the output unit 230.

If transmission information is set in the controller 220 (for example, an administrator, a remote server, etc.), the controller 220 controls the communication unit 250 based on the external transmission information when the wind direction information and the wind speed information are input. To transmit wind direction information and wind velocity information having time information as identification information.

If the reference values for the alarm are set in the controller 220, the wind direction information and the wind speed information are compared with reference values to be input. If it is determined that an abnormality has occurred, the alarm unit 260 notifies the outside On the other hand, it is transmitted to the outside through the communication unit 250 so that it can be announced.

That is, the control unit 220 stores the wind direction and the wind speed inputted at predetermined intervals through the wind direction sensing unit 170 and the wind speed sensing unit 270 as the input time as identification information in the storage unit 210, And outputs it through the output unit 230 so that it can be recognized on the site. The information can be transmitted to a remote site via the communication unit 250 to support the construction of the wind direction and wind speed DB, So that safety measures such as evacuation and the like can be taken.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or essential characteristics thereof. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

100: Two-dimensional weather vane using bimorph
110: Streamlined body 120: Bimorph
130: tail 140: tail chin
150: hinge 160:
170:

Claims (5)

In a weather vane measuring wind speed and direction,
A streamlined main body (110) arranged to face in a windward direction;
A tail 130 provided at an end of the streamlined main body 110 and vibrated according to the intensity of the wind;
A bimorph 120 provided between the streamlined main body 110 and the tail 130 to sense and output a frequency of the tail;
A position measuring unit 160 for measuring and outputting the current position of the streamlined main body 110;
A wind direction sensing unit 170 for sensing a wind direction based on the current position measured by the position measuring unit 160;
A wind speed sensing unit 270 receiving the frequency sensed by the bimorph 120 and detecting the wind speed and outputting the detected wind speed to the control unit 220;
The wind direction information and the wind speed information input through the wind direction sensing unit 170 and the wind speed sensing unit 270 are stored in the storage unit 210 as time information as identification information and output through the output unit 230 (220);
A communication unit 250 for transmitting the wind direction information and the wind speed information having the time information as the identification information based on the external transmission information when the wind direction information and the wind speed information are input to the control unit 220; And
If the reference values for the alarm are set in the controller 220, the wind direction information and the wind speed information are compared with the reference values to be input. If it is determined that an abnormality has occurred, the wind direction information and the wind speed information are notified to the outside, An alarm unit 260 for transmitting the information to the outside and making it known;
/ RTI >
The control unit 220 stores the wind direction and the wind speed inputted at predetermined intervals through the wind direction sensing unit 170 and the wind speed sensing unit 270 as identification information in the storage unit 210, And transmits the alarm signal to the remote site via the communication unit 250 so as to construct a wind direction and wind speed DB. If necessary, the alarm unit 260 can output an alarm signal A two-dimensional weather vane using a bimorph that can generate safety notices while taking notice.
The method according to claim 1,
And a tail jaw (140) provided perpendicular to the tail (130) and increasing the turbulence intensity generated downstream. The two-dimensional weather vane using the bimorph.
The method according to claim 1,
Further comprising a hinge (150) provided at a front end of the streamlined main body (110) to rotate the streamlined main body (110) in a wind direction.
delete The method according to claim 1,
Wherein the position measurement unit (160) is a magnet, and the wind direction sensing unit (170) has magnetism.
KR1020150178143A 2015-12-14 2015-12-14 Two-dimensional vane using bimorphs KR101746437B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11340382B1 (en) 2020-12-24 2022-05-24 Toyota Motor Engineering & Manufacturing North America, Inc. Sensor system on a line for measuring atmospheric conditions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11340382B1 (en) 2020-12-24 2022-05-24 Toyota Motor Engineering & Manufacturing North America, Inc. Sensor system on a line for measuring atmospheric conditions

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