CN108572261B - Electric wind direction and wind speed meter and method for measuring wind direction and wind speed - Google Patents
Electric wind direction and wind speed meter and method for measuring wind direction and wind speed Download PDFInfo
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- CN108572261B CN108572261B CN201810416814.1A CN201810416814A CN108572261B CN 108572261 B CN108572261 B CN 108572261B CN 201810416814 A CN201810416814 A CN 201810416814A CN 108572261 B CN108572261 B CN 108572261B
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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
- G01P13/00—Indicating or recording presence, absence, or direction, of movement
- G01P13/02—Indicating direction only, e.g. by weather vane
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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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Abstract
An electric wind direction anemometer and a method for measuring wind direction and wind speed thereof, wherein the electric wind direction anemometer comprises a tail wing, a pointing rod, a rotating shaft, a wind vane conversion element, a fixed seat, a first wind speed sheet, a first pull pressure sensor, a connecting seat, a main controller and a display screen; the connecting seat is fixedly connected with the other end of the pointing rod; the first wind speed sheet is hinged with the pointing rod and one end of the first pull pressure sensor respectively, and is provided with a first windward side which is approximately vertical to a horizontal center line AB of the pointing rod; the other end of the first pull pressure sensor is hinged to the connecting seat, the signal input end of the main controller is respectively electrically connected with the first pull pressure sensor and the wind vane conversion element or in wireless communication, and the signal output end of the main controller is electrically connected with the display screen or in wireless communication. The electric connection wind direction anemometer has simple structure and accurate measurement. The method for measuring wind direction and wind speed by the electric wind direction and wind speed meter is simple and accurate in measurement.
Description
Technical Field
The invention relates to an electric anemoscope and a method for measuring wind direction and wind speed.
Background
As shown in fig. 7, the prior art electrical wind vane anemometer includes a wind direction measuring mechanism including a tail wing 50, a pointing stick 51, a balancer 52, a rotating shaft 53, a vane switching member 54, and a fixing base 55, and a wind speed measuring mechanism. The tail wing 50 and the balancer 52 are fixedly coupled to both ends of the pointing rod 51, the balancer 52 serves to reduce the weight of the tail wing 50, the middle portion of the pointing rod 51 is fixedly coupled to the upper end portion of the rotating shaft 53, the vane converting member 54 is coupled to the fixing base 55, and the rotating shaft 53 is fixedly coupled to the electrical contact spring of the vane converting member 54. When the incoming wind direction is at an angle to the pointing rod 51, the wind exerts a force on the balancer 52 and the tail 50 of the wind direction measuring mechanism, and this force can be resolved into two components parallel and perpendicular to the balancer 52 and the tail 50. Because the wind area of the balancer 52 is relatively small, the wind area of the tail wing 50 is relatively large, the sensed wind pressure is unequal, the wind pressure perpendicular to the tail wing 50 generates a wind pressure moment, the pointing rod 51 rotates around the rotating shaft 53 until the head of the balancer 52 just faces the incoming direction of the wind, and at the moment, because the two sides of the tail wing 50 are stressed in balance, the pointing rod 51 is stabilized in the direction. The balancer 52 head is always pointed to the wind source, and the wind direction is determined by outputting an electrical signal through the wind vane switching element 54.
The wind speed measuring mechanism comprises three wind cups 60, three wind cup racks 61, a vertical shaft 62 and a wind cup conversion element 63, wherein the wind cup conversion element 63 is sleeved at the upper end of the rotating shaft 53, the vertical shaft 62 is connected with the wind cup conversion element 63, the three wind cup racks 61 are connected on the vertical shaft 62 and form an angle of 120 degrees with each other, and the three wind cups 60 are respectively and fixedly connected on the three wind cup racks 61. The three cups 60 will rotate with the wind, and the wind speed is determined by the cup transition member 63. Since the above-described electric wind anemometer balances the weight of the rear wing 50 through the balancer 52 and also measures the wind speed through the wind speed measuring mechanism, the structure is complicated.
Disclosure of Invention
The invention aims to provide an electric wind direction and anemometer which is simple in structure and accurate in measurement.
In order to achieve the first purpose, the invention adopts the following technical scheme: an electric connection wind direction anemometer comprises a tail wing, a pointing rod, a rotating shaft, a wind direction indicator conversion element and a fixed seat; the tail wing is fixedly connected to one end of the pointing rod; the middle part of the pointing rod in the left-right direction is fixedly connected with the upper end part of the rotating shaft; the rotating shaft is fixedly connected with an electric contact reed of the wind vane conversion element; the wind vane conversion element is connected to the fixed seat and provided with a signal output end;
the wind speed sensor is connected with the first wind speed sheet through a first pull pressure sensor; the connecting seat is fixedly connected to the other end of the pointing rod; the first wind speed sheet is hinged with the pointing rod and one end of the first pull pressure sensor respectively, and is provided with a first windward side which is approximately vertical to a horizontal center line AB of the pointing rod; the other end of the first pull pressure sensor is hinged to the connecting seat, and the first pull pressure sensor is provided with a signal output end; the main controller is provided with a first signal input end, a second signal input end and a signal output end; the display screen is provided with a signal input end; and the first signal input end and the second signal input end of the main controller are respectively electrically connected with the signal output end of the first pull pressure sensor and the signal output end of the wind vane conversion element or in wireless communication, and the signal output end of the main controller is electrically connected with the signal input end of the display screen or in wireless communication.
The wind speed sensor also comprises a second wind speed sheet and a second pull pressure sensor; the second wind speed sheet is hinged with the pointing rod and one end of the second pull pressure sensor respectively, and is provided with a second windward side which is approximately vertical to the horizontal center line AB of the pointing rod; the other end of the second pull pressure sensor is hinged to the connecting seat, and the second pull pressure sensor is provided with a signal output end; the main controller is also provided with a third signal input end, and the third signal input end of the main controller is electrically connected or wirelessly communicated with the signal output end of the second pull pressure sensor.
The pointing rod comprises a horizontal shaft, a first wind speed sheet connecting shaft and a second wind speed sheet connecting shaft; the center lines of the horizontal shaft, the first wind speed sheet connecting shaft and the second wind speed sheet connecting shaft are all on the same horizontal plane, and the first wind speed sheet connecting shaft and the second wind speed sheet connecting shaft are vertically connected to the front and back sides of the horizontal shaft.
The first wind speed piece comprises a first piece body part and a first protrusion part; the first protruding part is positioned at the rear lower part of the first sheet body part and fixedly connected with the first sheet body part or integrally manufactured with the first protruding part, and a first hinge hole is formed in the first protruding part and is a front-back through hole; the second wind speed piece comprises a second piece body part and a second protrusion part; the second protrusion part is positioned at the front upper part of the second sheet body part and fixedly connected with or integrally manufactured with the second protrusion part, and a second hinge hole is formed in the second protrusion part and is a front-back through hole.
The second purpose of the invention is to provide a method for measuring wind direction and wind speed by using an electric wind direction and wind speed meter, which is simple and accurate in measurement.
In order to achieve the second purpose, the invention adopts the following technical scheme: a method for measuring wind direction and wind speed by an electric wind direction anemometer is characterized in that the electric wind direction anemometer is adopted for measurement, a fixed seat of the electric wind direction anemometer is arranged on an outdoor pole, and a main controller and a display screen are arranged indoors, and comprises the following steps:
a) when the incoming direction of the wind forms a certain intersection angle with the pointing rod, the pointing rod rotates around the rotating shaft until the left end of the connecting seat just faces the incoming direction of the wind, and the pointing rod is stabilized in the direction;
b) converting the angle of the pointing rod in the direction into an electric signal by a wind vane conversion element and sending the electric signal to a main controller, calculating the wind direction by the main controller according to the electric signal converted by the wind vane conversion element, and controlling a display screen to display the wind direction by the main controller;
c) the first windward side of the first wind speed plate bears wind pressure, the acting force of wind on the first wind speed plate is balanced by the pulling pressure of the first pulling pressure sensor, and the pulling pressure is converted into an electric signal by the first pulling pressure sensor and sent to the main controller;
d) the electrical signal that will first draw pressure sensor to send by main control unit converts into again and draws pressure value F to calculate wind pressure q, specifically do: q =2 × F × sinQ × L/(S × L1), where F is a tension pressure value converted by the main controller, Q is an included angle between a tension pressure direction borne by the first tension pressure sensor and the first windward surface of the first wind speed blade, L is a distance from a hinge point O1 of the first tension pressure sensor and the first wind speed blade to an up-down direction between the first wind speed blade and a hinge point O2 of the pointing rod, L1 is a distance from an upper end of the first wind speed blade to a hinge point O2 of the first wind speed blade and the pointing rod, and S is an area of the first windward surface of the first wind speed blade.
e) The main controller calculates the wind speed v according to the wind pressure q, and the method specifically comprises the following steps: v. of2And = q × g/γ, where q is wind pressure, γ is air gravity, and g is gravitational acceleration.
f) And the main controller controls the display screen to display the wind speed value v.
The invention has the following positive effects: (1) because the first wind speed piece of the electric connection wind direction anemometer is respectively hinged with the pointing rod and one end of the first pulling and pressing sensor, and the first wind speed piece is provided with a first windward side which is approximately vertical to the horizontal center line AB of the pointing rod; the other end of the first pull pressure sensor is hinged on the connecting seat, and the first pull pressure sensor is provided with a signal output end; the main controller is provided with a first signal input end, a second signal input end and a signal output end; the display screen is provided with a signal input end; the first signal input end and the second signal input end of the main controller are respectively electrically connected with the signal output end of the first pull pressure sensor and the signal output end of the wind vane conversion element or in wireless communication connection, and the signal output end of the main controllerThe end of the wind pressure sensor is electrically connected with the signal input end of the display screen or is in wireless communication connection, so that the wind area of a balancer formed by the first wind speed plate, the first pull pressure sensor and the connecting seat is far smaller than that of the empennage, when the incoming direction of wind forms a certain intersection angle with the pointing rod, the pointing rod rotates around the rotating shaft until the head of the connecting seat just faces the incoming direction of the wind, the pointing rod is stabilized in the direction, the direction of the wind pressure force is also approximately vertical to the first windward side of the first wind speed plate, and the wind pressure on the first windward side of the first wind speed plate is balanced by the pulling force generated by the first pull pressure sensor on the first wind speed plate. When wind blows to the first windward side of the first wind speed sheet, the first pulling pressure sensor is subjected to pulling pressure, the pulling pressure is converted into an electric signal to be sent to the main controller, and the wind speed is calculated by the main controller. And the main controller controls the display screen to display the wind speed value. The first wind speed plate, the first pull pressure sensor and the connecting seat can form a balancer, so that the balancer not only can be used for balancing the weight of the rear wing, but also can be used for measuring the wind speed, and the structure is very simple. 2) And the first windward side of the first wind speed plate of the electric connection wind direction anemometer is always vertical to the incoming direction of wind, when the wind blows to the first windward side of the first wind speed plate, the acting force of the wind on the first wind speed plate is the largest, and the pulling pressure of the first pulling pressure sensor is also the largest, so that the pulling pressure of the first pulling pressure sensor can be changed when the wind speed is slightly changed, and the measurement is accurate. 3) After the method for measuring wind direction and wind speed by using the electric wind direction and wind speed meter of the invention is adopted, only q = 2F sinQ/(S L1) and v are needed2The wind speed can be calculated by the = q × g/γ and can be displayed by the display screen, so that the measurement is simple and accurate.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the connection of the directional lever, the first anemometer blade, the first pull pressure sensor, the connecting socket, the second anemometer blade and the second pull pressure sensor of FIG. 1;
FIG. 3 is a schematic top view of FIG. 2;
FIG. 4 is a schematic right-side view of FIG. 2;
FIG. 5 is a schematic view of the first wind speed blade configuration of FIG. 4;
FIG. 6 is a schematic right-side view of FIG. 5;
FIG. 7 is a schematic diagram of a prior art electrical anemometer configuration.
The reference numbers in the above figures are as follows: the wind speed sensor comprises a first wind speed sheet 1, a first windward side 1-1, a first sheet body part 1-2, a first protruding part 1-3, a first hinge hole 1-3-1, a first connecting lug seat 1-4, a first pulling pressure sensor 2, a first lifting bolt 2-1, a connecting seat 3, a first lug seat 3-1, a second lug seat 3-2, a main controller 4, a display screen 5, a second wind speed sheet 6, a second windward side 6-1, a second sheet body part 6-2, a second protruding part 6-3, a second hinge hole 6-3-1, a second connecting lug seat 6-4, a second pulling pressure sensor 7, a second lifting bolt 7-1, a tail wing 50, a pointing rod 51, a horizontal shaft 51-1, a first wind speed sheet connecting shaft 51-2, a second wind speed sheet connecting shaft 51-3, a horizontal shaft 51-1, a second wind speed sheet connecting shaft 51-3, a first protruding part 1-3, a second hinge hole, Balancer 52, rotating shaft 53, wind vane conversion element 54, fixing seat 55, wind cup 60, wind cup holder 61, vertical shaft 62 and wind cup conversion element 63.
Detailed Description
The invention is further described below with reference to the accompanying drawings and the examples given.
The orientation of the present invention is described according to the orientation shown in fig. 1, that is, the up-down and left-right directions shown in fig. 1 are the up-down and left-right directions described, and the side facing fig. 1 is the front side and the side facing away from fig. 1 is the rear side.
As shown in fig. 1, an electrical wind anemometer includes a tail fin 50, a pointing stick 51, a rotation shaft 53, a vane switching member 54, and a fixing base 55; the vane switching element 54 is an EL-type electric wind meter. The tail wing 50 is fixedly connected to one end of the pointing rod 51; the middle part of the pointing rod 51 in the left-right direction is fixedly connected with the upper end part of the rotating shaft 53; the rotating shaft 53 is fixedly connected with an electric contact spring of the wind vane conversion element 54; the wind vane conversion element 54 is connected to the fixing seat 55, and the wind vane conversion element 54 is provided with a signal output end;
the wind speed sensor comprises a first wind speed sheet 1, a first pull pressure sensor 2, a connecting seat 3, a main controller 4 and a display screen 5; in this embodiment, the main controller 4 is an Atmega16 type single chip microcomputer, the first pull pressure sensor 2 is a M10F type small-range column type pull pressure sensor manufactured by shanghai jiu system sensor ltd, and the display screen 5 is LCD 12864. The connecting seat 3 is fixedly connected to the other end of the pointing rod 51; the first wind speed piece 1 is hinged with the pointing rod 51 and one end of the first pull pressure sensor 2 respectively, the first wind speed piece 1 is provided with a first windward side 1-1, the first wind speed piece 1 is of a sheet-shaped structure, the left-right direction in the figure 1 is the thickness direction of the first wind speed piece 1, the first windward side 1-1 is the left end surface of the first wind speed piece 1, and the first windward side 1-1 is approximately vertical to the horizontal center line AB of the pointing rod 51; as shown in fig. 2, in this embodiment, two first lifting bolts 2-1 are connected to two ends of the first pulling pressure sensor 2, a first ear seat 3-1 and a second ear seat 3-2 are disposed on the connecting seat 3, one end of the first pulling pressure sensor 2 is hinged to the first air velocity plate 1 through the first lifting bolt 2-1, and the other end of the first pulling pressure sensor 2 is hinged to the first ear seat 3-1 of the connecting seat 3 through the first lifting bolt 2-1. As shown in fig. 1, the first pull pressure sensor 2 is provided with a signal output end; the main controller 4 is provided with a first signal input end, a second signal input end and a signal output end; the display screen 5 is provided with a signal input end; the first signal input end and the second signal input end of the main controller 4 are respectively electrically connected with the signal output end of the first pull pressure sensor 2 and the signal output end of the wind vane conversion element 54 or are in wireless communication connection, and the signal output end of the main controller 4 is electrically connected with the signal input end of the display screen 5 or are in wireless communication connection.
The wind speed sensor also comprises a second wind speed sheet 6 and a second pull pressure sensor 7; the second wind speed sheet 6 is hinged with the pointing rod 51 and one end of the second pull pressure sensor 7, the second wind speed sheet 6 is provided with a second windward side 6-1, the second wind speed sheet 6 is of a sheet-shaped structure, the left-right direction in fig. 1 is the thickness direction of the second wind speed sheet 6, the second windward side 6-1 is the left end surface of the second wind speed sheet 6, and the second windward side 6-1 is approximately perpendicular to the horizontal center line AB of the pointing rod 51; as shown in fig. 2, in this embodiment, two second lifting bolts 7-1 are connected to two ends of the second pull pressure sensor 7, one end of the second pull pressure sensor 7 is hinged to the second wind speed plate 6 through the second lifting bolt 7-1, and the other end of the second pull pressure sensor 7 is hinged to the second ear seat 3-2 of the connecting seat 3 through the second lifting bolt 7-1. As shown in fig. 1, the second pull pressure sensor 7 is provided with a signal output end; the main controller 4 is further provided with a third signal input end, and the third signal input end of the main controller 4 is electrically connected or wirelessly communicated with the signal output end of the second pull pressure sensor 7. The second wind speed piece 6 is arranged to enable the stress condition of the electric wind direction anemometer to be better, and the second pull pressure sensor 7 is arranged to enable the electric wind direction anemometer to measure the wind speed under the condition that the first pull pressure sensor 2 is damaged.
As shown in fig. 2 to 4, the pointing stick 51 includes a horizontal shaft 51-1, a first wind blade connection shaft 51-2, and a second wind blade connection shaft 51-3; the center lines of the horizontal shaft 51-1, the first wind speed piece connecting shaft 51-2 and the second wind speed piece connecting shaft 51-3 are all on the same horizontal plane, the first wind speed piece connecting shaft 51-2 and the second wind speed piece connecting shaft 51-3 are vertically connected to the two sides of the horizontal shaft 51-1 in the front-back direction, and in the embodiment, the first wind speed piece connecting shaft 51-2 and the second wind speed piece connecting shaft 51-3 are welded to the two sides of the horizontal shaft 51-1 in the front-back direction.
As shown in fig. 3 to 6, the first wind speed strip 1 includes a first strip body portion 1-2 and a first protrusion portion 1-3; the first protruding part 1-3 is positioned at the rear lower part of the first sheet body part 1-2 and fixedly connected with or made into a whole, a first hinge hole 1-3-1 is formed in the first protruding part 1-3, and the first hinge hole 1-3-1 is a front-back through hole; the second wind speed piece 6 comprises a second piece body part 6-2 and a second protrusion part 6-3; the second protruding part 6-3 is located at the front upper part of the second sheet part 6-2 and is fixedly connected with or made into a whole, the second protruding part 6-3 is provided with a second hinge hole 6-3-1, and the second hinge hole 6-3-1 is a front-back through hole. As shown in fig. 2 and 3, in the embodiment, the first wind speed blade 1 is hinged to a first wind speed blade connecting shaft 51-2 of a horizontal shaft 51-1 through a first hinge hole 1-3-1, a first connecting lug seat 1-4 is further disposed at an upper end of the first wind speed blade 1, and the first wind speed blade 1 is hinged to a first lifting bolt 2-1 at one end of the first pull pressure sensor 2 through the first connecting lug seat 1-4. The second wind speed sheet 6 is hinged with a second wind speed sheet connecting shaft 51-3 of the horizontal shaft 51-1 through a second hinge hole 6-3-1, a second connecting lug seat 6-4 is further arranged at the lower end part of the second wind speed sheet 6, and the second wind speed sheet 6 is hinged with a second lifting bolt 7-1 at one end of the second pull pressure sensor 7 through the second connecting lug seat 6-4. This arrangement allows for better stress on the electrical wind anemometer.
As shown in fig. 1 to 3, a method for measuring wind direction and speed by an electric wind direction anemometer, which measures by the electric wind direction anemometer, installs a fixing base 55 of the electric wind direction anemometer on an outdoor pole, and installs a main controller 4 and a display screen 5 indoors, comprises the following steps:
a) when the incoming direction of the wind forms a certain intersection angle with the pointing rod 51, the pointing rod 51 rotates around the rotating shaft 53 until the left end of the connecting seat 3 just faces the incoming direction of the wind, and the pointing rod 51 is stabilized in the direction;
b) the angle of the pointing rod 51 at the position is converted into an electric signal by the wind vane conversion element 54 and sent to the main controller 4, the main controller 4 calculates the wind direction according to the electric signal converted by the wind vane conversion element 54, and then the main controller 4 controls the display screen 5 to display the wind direction;
c) the first windward side 1-1 of the first wind speed plate 1 bears wind pressure, the acting force of wind on the first wind speed plate 1 is balanced by the pulling pressure of the first pulling pressure sensor 2, and the pulling pressure is converted into an electric signal by the first pulling pressure sensor 2 and sent to the main controller 4;
d) the main controller 4 converts the electric signal sent by the first pull pressure sensor 2 into a pull pressure value F, and calculates the wind pressure q, specifically: q =2 × F × sinQ × L/S × L1), where F is a pulling pressure value converted by the main controller 4, Q is an included angle between a pulling pressure direction borne by the first pulling pressure sensor 2 and the first windward side 1-1 of the first wind speed blade 1, L is a distance from a hinge point O1 of the first pulling pressure sensor 2 and the first wind speed blade 1 to an up-down direction between the first wind speed blade 1 and a hinge point O2 of the pointing rod 51, L1 is a distance from an upper end of the first wind speed blade 1 to a hinge point O2 of the first wind speed blade 1 and the pointing rod 51, and S is an area of the first windward side 1-1 of the first wind speed blade 1.
e) Calculate wind speed v by main control unit 4 according to wind pressure q, specifically do: v. of2And = q × g/γ, where q is wind pressure, γ is air gravity, and g is gravitational acceleration.
f) And the main controller 4 controls the display screen 5 to display the wind speed value v.
The working principle of the electric wind direction anemometer of the invention is as follows: as shown in fig. 1, the first wind speed vane 1, the first pull pressure sensor 2 and the connecting base 3 may constitute a balancer for reducing the weight of the tail wing 50, and the wind receiving area of the balancer constituted by the first wind speed vane 1, the first pull pressure sensor 2 and the connecting base 3 is much smaller than that of the tail wing 50, when the incoming direction of wind makes a certain angle with the pointing rod 51, a wind pressure moment is generated by the wind pressure perpendicular to the tail wing 50, so that the pointing rod 51 rotates around the rotating shaft 53 until the head of the connecting base 3 is just opposite to the incoming direction of wind, at this time, the pointing rod 51 is stabilized in the direction due to the balanced forces on both sides of the tail wing 50, that is, when the incoming direction of wind is parallel to the horizontal center line AB of the pointing rod 51 in fig. 1 and blows from a to B, the pointing rod 51 is stabilized in the position shown in fig. 1. Since the first windward side 1-1 of the first wind blade 1 is substantially perpendicular to the horizontal center line AB of the pointing stick 51, the direction of the wind pressure is also substantially perpendicular to the first windward side 1-1 of the first wind blade 1. As shown in fig. 2, in the present embodiment, since the lower end of the first wind speed strip 1 is hinged to the pointing rod 51 at a point O2, and the upper end of the first wind speed strip 1 is hinged to the first pulling/pressing force sensor 2 at a point O1, the wind pressure on the first windward side 1-1 of the first wind speed strip 1 is balanced by the pulling force generated by the first pulling/pressing force sensor 2 on the first wind speed strip 1. When wind blows towards the first windward side 1-1 of the first wind speed piece 1, the first pulling and pressing force sensor 2 is subjected to pulling and pressing force, the pulling and pressing force is converted into an electric signal to be sent to the main controller 4, and the wind speed is calculated by the main controller 4. And the main controller 4 controls the display screen 5 to display the wind speed value. Since the first air velocity plate 1, the first pulling and pressing force sensor 2 and the connecting base 3 of the present invention can constitute a balancer, not only the weight of the flat rear wing 50 but also the air velocity can be measured, and thus the structure is very simple. And because the first windward surface 1-1 of the first wind speed piece 1 is always vertical to the incoming direction of wind, when the wind blows to the first windward surface 1-1 of the first wind speed piece 1, the acting force of the wind on the first wind speed piece 1 is the largest, and the pulling pressure of the first pulling pressure sensor 2 is also the largest, so that the pulling pressure of the first pulling pressure sensor 2 can be changed when the wind speed is slightly changed, and the measurement accuracy is ensured.
Claims (2)
1. An electric connection wind direction anemometer comprises a tail wing (50), a pointing rod (51), a rotating shaft (53), a wind vane conversion element (54) and a fixed seat (55); the tail wing (50) is fixedly connected to one end of the pointing rod (51); the middle part of the pointing rod (51) in the left-right direction is fixedly connected to the upper end part of the rotating shaft (53); the rotating shaft (53) is fixedly connected with an electric contact spring of a wind vane conversion element (54); the wind vane conversion element (54) is connected to the fixed seat (55) and the wind vane conversion element (54) is provided with a signal output end; the method is characterized in that:
the wind power generation device is characterized by also comprising a first wind speed sheet (1), a first pull pressure sensor (2), a connecting seat (3), a main controller (4), a display screen (5), a second wind speed sheet (6) and a second pull pressure sensor (7); the connecting seat (3) is fixedly connected to the other end of the pointing rod (51); the first wind speed sheet (1) is hinged with one end of the pointing rod (51) and one end of the first pulling and pressing sensor (2) respectively, the first wind speed sheet (1) is provided with a first windward side (1-1), and the first windward side (1-1) is approximately vertical to a horizontal center line AB of the pointing rod (51); the other end of the first pull pressure sensor (2) is hinged to the connecting seat (3), the second wind speed sheet (6) is hinged to one end of the pointing rod (51) and one end of the second pull pressure sensor (7) respectively, the second wind speed sheet (6) is provided with a second windward side (6-1), and the second windward side (6-1) is approximately perpendicular to the horizontal center line AB of the pointing rod (51); the other end of the second pull pressure sensor (7) is hinged on the connecting seat (3); the first pull pressure sensor (2) is provided with a signal output end; the second pull pressure sensor (7) is provided with a signal output end; the main controller (4) is provided with a first signal input end, a second signal input end, a third signal input end and a signal output end; the display screen (5) is provided with a signal input end; a first signal input end and a second signal input end of the main controller (4) are respectively electrically connected or wirelessly communicated with a signal output end of the first pull pressure sensor (2) and a signal output end of the wind vane conversion element (54), and a signal output end of the main controller (4) is electrically connected or wirelessly communicated with a signal input end of the display screen (5); a third signal input end of the main controller (4) is electrically connected or wirelessly communicated with a signal output end of the second pull pressure sensor (7); the pointing rod (51) comprises a horizontal shaft (51-1), a first wind speed sheet connecting shaft (51-2) and a second wind speed sheet connecting shaft (51-3); the center lines of the horizontal shaft (51-1), the first wind speed sheet connecting shaft (51-2) and the second wind speed sheet connecting shaft (51-3) are all on the same horizontal plane, and the first wind speed sheet connecting shaft (51-2) and the second wind speed sheet connecting shaft (51-3) are vertically connected to the two sides of the horizontal shaft (51-1) in the front-back direction; the first wind speed piece (1) comprises a first piece body part (1-2) and a first protrusion part (1-3); the first protruding part (1-3) is positioned at the rear lower part of the first sheet body part (1-2) and fixedly connected with the first sheet body part or integrally formed with the first sheet body part, a first hinge hole (1-3-1) is formed in the first protruding part (1-3), and the first hinge hole (1-3-1) is a front-back through hole; the second wind speed piece (6) comprises a second piece body part (6-2) and a second protrusion part (6-3); the second protrusion part (6-3) is positioned at the front upper part of the second sheet body part (6-2) and fixedly connected with or integrally manufactured with the second protrusion part, a second hinge hole (6-3-1) is formed in the second protrusion part (6-3), and the second hinge hole (6-3-1) is a front-back through hole; the first wind speed sheet (1) is hinged with the first wind speed sheet connecting shaft (51-2) through a first hinge hole (1-3-1), and the second wind speed sheet (6) is hinged with the second wind speed sheet connecting shaft (51-3) through a second hinge hole (6-3-1).
2. A method of measuring wind direction and velocity using the electrical wind direction anemometer of claim 1, characterized by: the electric connection wind direction and wind speed meter is adopted for measurement, a fixing seat (55) of the electric connection wind direction and wind speed meter is installed on an outdoor pole, and a main controller (4) and a display screen (5) are installed indoors, and the method comprises the following steps:
a) when the incoming direction of wind forms a certain intersection angle with the pointing rod (51), the pointing rod (51) rotates around the rotating shaft (53) until the left end of the connecting seat (3) is just opposite to the incoming direction of the wind, and the pointing rod (51) is stabilized in the direction;
b) the angle of the pointing rod (51) when the pointing rod is located at the position is converted into an electric signal by the wind vane conversion element (54) and sent to the main controller (4), the main controller (4) calculates the wind direction according to the electric signal converted by the wind vane conversion element (54), and then the main controller (4) controls the display screen (5) to display the wind direction;
c) the first windward side (1-1) of the first wind speed sheet (1) bears wind pressure, the acting force of wind on the first wind speed sheet (1) is balanced by the pulling pressure of the first pulling pressure sensor (2), and the pulling pressure is converted into an electric signal by the first pulling pressure sensor (2) and sent to the main controller (4);
d) the main controller (4) converts the electric signal sent by the first tension pressure sensor (2) into a tension pressure value F, and calculates the wind pressure q, specifically: q is 2 × F × sinQ/(S × L1), where F is a pulling pressure value converted by the main controller (4), Q is an included angle between a pulling pressure direction borne by the first pulling pressure sensor (2) and a first windward surface (1-1) of the first wind speed sheet (1), L is a distance from a hinge point O1 of the first pulling pressure sensor (2) and the first wind speed sheet (1) to a hinge point O2 of the first wind speed sheet (1) and the pointing rod (51) in the up-down direction, L1 is a distance from an upper end of the first wind speed sheet (1) to a hinge point O2 of the first wind speed sheet (1) and the pointing rod (51), and S is an area of the first windward surface (1-1) of the first wind speed sheet (1);
e) the main controller (4) calculates the wind speed v according to the wind pressure q, and the method specifically comprises the following steps: v. of2Q is wind pressure, gamma is air gravity and g is gravity acceleration;
f) and the main controller (4) controls the display screen (5) to display the wind speed value v.
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| CN108572261B true CN108572261B (en) | 2020-10-09 |
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| CN206460072U (en) * | 2017-01-17 | 2017-09-01 | 泰州金泰环保热电有限公司 | A kind of apparatus for measuring air quantity |
| CN107290563A (en) * | 2016-04-13 | 2017-10-24 | 北京天诚同创电气有限公司 | Wind direction and speed instrument |
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|---|---|---|---|---|
| JPH08262050A (en) * | 1995-03-17 | 1996-10-11 | Ishikawajima Harima Heavy Ind Co Ltd | Wind warning device |
| KR20090105308A (en) * | 2008-04-02 | 2009-10-07 | 주식회사 서부에너지기술 | A meteorological instruments using ultrasonic sensor |
| CN107290563A (en) * | 2016-04-13 | 2017-10-24 | 北京天诚同创电气有限公司 | Wind direction and speed instrument |
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