CN206546377U - A kind of wind direction and wind velocity sensor based on electromagnetic induction principle - Google Patents
A kind of wind direction and wind velocity sensor based on electromagnetic induction principle Download PDFInfo
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- CN206546377U CN206546377U CN201720043219.9U CN201720043219U CN206546377U CN 206546377 U CN206546377 U CN 206546377U CN 201720043219 U CN201720043219 U CN 201720043219U CN 206546377 U CN206546377 U CN 206546377U
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Abstract
The utility model discloses a kind of wind direction and wind velocity sensor based on electromagnetic induction principle, including wind transducer and air velocity transducer, the wind transducer includes wind transducer body, weathercock axle is provided with the wind transducer body, the weathercock axle top is symmetrically arranged with wind vane tail and wind vane counterweight；Cylindricality is provided with the axle bottom of the weathercock axle to pole magnet, the air velocity transducer includes air velocity transducer body, vane axle is provided with the air velocity transducer body, the vane axle top is symmetrically arranged with three cup type vanes, annular is provided with the axle bottom of the vane axle to pole magnet ring, the utility model provides a kind of wind direction and wind velocity sensor based on electromagnetic induction principle, and structure is novel；The utility model measures wind direction and wind velocity change based on electromagnetic induction principle, and wind direction position and wind speed change are determined by measuring the magnetic flux change the magnet of pole；Break the metering system of traditional Weight and disk type and potentiometer type, improve measurement accuracy.
Description
Technical field
The utility model is related to meteorological detection field, specifically a kind of wind direction and wind velocity sensing based on electromagnetic induction principle
Device.
Background technology
The observation of wind direction and wind velocity is particularly important in modern weather observation, can be each row by the measurement to wind direction and wind velocity
The work production of industry provides and instructs foundation；Most of traditional wind direction and wind velocity sensor is designed based on photovoltaic principals, due to
It is low that volume and photoelectricity cutting the code-disc mode of photoelectric device result in traditional wind direction and wind velocity sensor resolution ratio, and packaging technology will
Ask high, the anti-ESD that result in traditional wind direction and wind velocity sensor due to the principle and light decay restricted lifetime of photoelectric device is poor, sensing
Device power consumption is high.
Utility model content
The purpose of this utility model is to provide a kind of wind direction and wind velocity sensor based on electromagnetic induction principle, with solution
State the problem of being proposed in background technology.
To achieve the above object, the utility model provides following technical scheme：
Wind transducer design principle：The method in transmission and orientation where indicating wind vane is a lot, has and mechanical, electric connects formula
Transmission, potentiometer type transmission and opto-electronic conversion several types.It is that a kind of wind direction measurement sensing is devised based on galvanomagnetic-effect herein
Device, its principle is in one plane to be pasted into 2 pairs, 4 pairs or with the multipair hall sensing element circumferentially arranged, each pair polarity
Each other on the contrary, the circle diameter of arrangement is 2mm.Now home position where the hall sensing element in this plane is apart from plane
It is 2.5mm to pole magnet to suspend above 2-4mm and place a round diameter, measurable to arrive two relative hall sensing elements
Between have weak voltage output.When the weak voltage that hall sensing element when being rotated to pole magnet of suspension is exported changes.From
And the rotational angle of circle centre position magnet can be measured, and if this voltage is connected into amplifier and AD collections are carried out, numeral filter
Ripple, angle and digital quantity can just be drawn by carrying out quantification treatment to it by chip processing system.To prevent frequency-domain waveform from producing
Then ADC sample rates should be met aliasing, if weathercock institute will be arranged on to pole magnet on center shaft, can measure current wind
To the position after varied.
Air velocity transducer design principle：Two hall sensing elements are in one plane pasted into side by side, and polarity is opposite each other.
If now placing one away from being suspended at hall sensing element plane 2-4mm directly over the hall sensing element part of this plane
Opposite polarity between magnetic stripe with many small magnets of N, two neighboring small magnet, it is measurable to two hall sensing elements in plane
Between have voltage output.When the electricity of hall sensing element output when the translation of hall sensing element plane is spun on to pole magnetic stripe of suspension
Pressure changes.The translational speed of suspension magnet can be measured by the voltage of hall sensing element at measurement plane, if
This voltage is connected to after amplifier amplification carry out AD collections again by digital filtering and voltage ratio compared with, it is possible to output and speed
The proportional square wave of degree.According to numerical frequency and analog frequency transforming principle, last input should meet ω with output
=2*pi*f/fs, wherein ω are radian, and pi is π, and f is the number of turns, and fs sample frequencys, if suspension magnetic stripe is made into annular shape, are filled
In vane institute on center shaft, then the wind speed after current wind speed, and change can be measured.
A kind of wind direction and wind velocity sensor based on electromagnetic induction principle, including wind transducer and air velocity transducer, it is described
Wind transducer includes being provided with weathercock axle, the weathercock axle top on wind transducer body, the wind transducer body
It is symmetrically arranged with wind vane tail and wind vane counterweight；Cylindricality is provided with the axle bottom of the weathercock axle to pole magnet, cylindricality pair
Pole magnet is connected to the axle bottom of weathercock axle by connector；PCB a, PCB are provided with immediately below the axle bottom of the weathercock axle
Center position is provided with hall sensing element a on circuit board a, and the air velocity transducer includes air velocity transducer body, described
Vane axle is provided with air velocity transducer body, the vane axle top is symmetrically arranged with three cup type vanes, the vane axle
Annular is provided with axle bottom to pole magnet ring, the axle bottom of central shaft where annular is connected to vane to pole magnet ring by connector
PCB b is provided with immediately below portion, the axle bottom of the vane axle；Hall sensing element b, institute are provided with PCB b
State hall sensing element b and be placed in annular to immediately below the magnet ring outer ring of pole.
It is used as further program of the utility model：The PCB a and PCB b are circular circuit board.
It is used as the utility model further scheme：The cylindricality is located at directly over hall sensing element a to pole magnet
At 2-4mm.
It is used as the utility model further scheme：The annular is between pole magnet ring and lower end hall sensing element b
Away from for 2-4mm.
It is used as the utility model further scheme：The connector is aluminum metal connecting piece.
Compared with prior art, the beneficial effects of the utility model are：The utility model provides a kind of based on electromagnetic induction
The wind direction and wind velocity sensor of principle, structure is novel；The utility model measures wind direction and wind velocity change based on electromagnetic induction principle, leads to
Measurement is crossed the magnetic flux change the magnet of pole to determine wind direction position and wind speed change；Traditional Weight and disk type and potentiometer are broken
The metering system of formula, improves measurement accuracy.
Brief description of the drawings
Fig. 1 is the wind transducer structural representation of the wind direction and wind velocity sensor based on electromagnetic induction principle.
Fig. 2 is the air velocity transducer structural representation of the wind direction and wind velocity sensor based on electromagnetic induction principle.
In figure：1- wind transducers, 2- air velocity transducers, 3- wind vanes tail, 4- wind vanes counterweight, 5- weathercocks axle, 6-
Cylindricality is to pole magnet, the cup type vane of 7- hall sensing element a, 8-PCB circuit boards a, 9- tri-, 10- vanes axle, 11- annulars to pole
Magnet ring, 12- hall sensing element b, 13-PCB circuit boards b.
Embodiment
The technical scheme of this patent is described in more detail with reference to embodiment.
Refer to Fig. 1-2, a kind of wind direction and wind velocity sensor based on electromagnetic induction principle, including wind transducer 1 and wind
Fast sensor 2, the wind transducer 1 includes being provided with weathercock axle on wind transducer body, the wind transducer body
5, the top of weathercock axle 5 is symmetrically arranged with wind vane tail 3 and wind vane counterweight 4；It is provided with the axle bottom of the weathercock axle 5
Cylindricality is connected to the axle bottom of weathercock axle 5 to pole magnet 6 to pole magnet 6, cylindricality by aluminum metal connecting piece；The weathercock axle 5
Axle bottom immediately below be provided with PCB a8, the PCB a8 is centre bit on circular circuit board, PCB a8
The place of putting is provided with hall sensing element a7, and the cylindricality is located at directly over hall sensing element a7 to pole magnet 6 at 2-4mm；Institute
Stating air velocity transducer 2 includes being provided with vane axle 10, the vane axle on air velocity transducer body, the air velocity transducer body
10 tops, which are symmetrically arranged with three cup type vanes 9, the axle bottom of the vane axle 10, is provided with annular to pole magnet ring 11, and annular is right
The axle bottom of central shaft where pole magnet ring 11 is connected to vane by aluminum metal connecting piece, the axle bottom of the vane axle 10 is just
Lower section is provided with PCB b13；The PCB b13 is to be provided with Hall on circular circuit board, PCB b13
Sensing element b12, the hall sensing element b12 are placed in annular to immediately below the outer ring of pole magnet ring 11；Annular is to pole magnet ring
11 be 2-4mm with lower end hall sensing element b12 spacing.
Operation principle of the present utility model is：The operation principle of wind transducer：The weathercock of wind transducer can drive
Central axis, when carrying out wind, central axis can be with bottom to pole magnet rotors, so that bottom is fixed on circuit boards
Hall sensing element sensor output varying voltage signal.By mcu collection voltages signals after wind tunnel calibration, using cunning
It is dynamic average according to formula, wind direction zero passage processing function：Outside really wind direction is can be obtained by, the work of air velocity transducer is former
Reason：When borrowing wind outside, vane can drive central shaft driven, so that pole magnet ring is rotated with moving axis bottom, will be in Hall sense
Answer and formed above element to pole field, hall sensing element is produced induced voltage, then amplify and Digital by hardware Amp
Rear pole Voltage Comparator are sent to after Fiter filtering to compare, and are finally produced pwm signal, are sent at MCU
Reason because the measurement of wind speed be not present zero passage problem, only need to by air velocity transducer as in wind-tunnel demarcate after pass through again
Moving average algorithm, calculating.
The better embodiment to this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
, can also be on the premise of this patent objective not be departed from formula, the knowledge that one skilled in the relevant art possesses
Make a variety of changes.
Claims (5)
1. a kind of wind direction and wind velocity sensor based on electromagnetic induction principle, including wind transducer and air velocity transducer, its feature
It is, the wind transducer includes being provided with weathercock axle, the wind on wind transducer body, the wind transducer body
Parameter top is symmetrically arranged with wind vane tail and wind vane counterweight；Cylindricality is provided with the axle bottom of the weathercock axle to pole magnetic
Iron, cylindricality is connected to the axle bottom of weathercock axle to pole magnet by connector；PCB electricity is provided with immediately below the axle bottom of the weathercock axle
Center position is provided with hall sensing element a on road plate a, PCB a, and the air velocity transducer includes air velocity transducer
Vane axle is provided with body, the air velocity transducer body, the vane axle top is symmetrically arranged with three cup type vanes, described
Annular is provided with the axle bottom of vane axle to pole magnet ring, center where annular is connected to vane to pole magnet ring by connector
PCB b is provided with immediately below the axle bottom of axle, the axle bottom of the vane axle；Hall sensing is provided with PCB b
Element b, the hall sensing element b are placed in annular to immediately below the magnet ring outer ring of pole.
2. the wind direction and wind velocity sensor according to claim 1 based on electromagnetic induction principle, it is characterised in that the PCB
Circuit board a and PCB b is circular circuit board.
3. the wind direction and wind velocity sensor according to claim 1 based on electromagnetic induction principle, it is characterised in that the cylindricality
Pole magnet is located at directly over hall sensing element a at 2-4mm.
4. the wind direction and wind velocity sensor according to claim 1 based on electromagnetic induction principle, it is characterised in that the annular
It is 2-4mm to pole magnet ring and lower end hall sensing element b spacing.
5. the wind direction and wind velocity sensor according to claim 1 based on electromagnetic induction principle, it is characterised in that the connection
Part is aluminum metal connecting piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720043219.9U CN206546377U (en) | 2017-01-16 | 2017-01-16 | A kind of wind direction and wind velocity sensor based on electromagnetic induction principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720043219.9U CN206546377U (en) | 2017-01-16 | 2017-01-16 | A kind of wind direction and wind velocity sensor based on electromagnetic induction principle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206546377U true CN206546377U (en) | 2017-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720043219.9U Active CN206546377U (en) | 2017-01-16 | 2017-01-16 | A kind of wind direction and wind velocity sensor based on electromagnetic induction principle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109901245A (en) * | 2019-04-29 | 2019-06-18 | 刘潇 | A kind of comprehensive wind speed calibrating installation of Atmospheric Survey |
| CN112730889A (en) * | 2020-12-25 | 2021-04-30 | 深圳市恒辉达电子有限公司 | Novel wind direction measuring system |
| CN112881751A (en) * | 2021-03-15 | 2021-06-01 | 天津智易时代科技发展有限公司 | Anemoscope with online calibration function |
-
2017
- 2017-01-16 CN CN201720043219.9U patent/CN206546377U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109901245A (en) * | 2019-04-29 | 2019-06-18 | 刘潇 | A kind of comprehensive wind speed calibrating installation of Atmospheric Survey |
| CN112730889A (en) * | 2020-12-25 | 2021-04-30 | 深圳市恒辉达电子有限公司 | Novel wind direction measuring system |
| CN112730889B (en) * | 2020-12-25 | 2022-10-04 | 深圳市恒辉达电子有限公司 | Novel wind direction measuring system |
| CN112881751A (en) * | 2021-03-15 | 2021-06-01 | 天津智易时代科技发展有限公司 | Anemoscope with online calibration function |
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