CN105466490A - Light wind-direction and wind-speed sensor - Google Patents
Light wind-direction and wind-speed sensor Download PDFInfo
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- CN105466490A CN105466490A CN201510966435.6A CN201510966435A CN105466490A CN 105466490 A CN105466490 A CN 105466490A CN 201510966435 A CN201510966435 A CN 201510966435A CN 105466490 A CN105466490 A CN 105466490A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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Abstract
The invention discloses a light wind-direction and wind-speed sensor which comprises a base, wherein a support is fixed on the base; a sensing frame is disposed on the upper end face of the base; a wind-sensing rod is hung on the support and located at the center axis of the sensing frame; a free end of the wind-sensing rod is lower than the upper edge of the sensing frame; a stress sensor is disposed on the inner side of each edge of the sensing frame; the stress sensors transmit detected signals to a wind-speed conversion circuit module; the wind-speed conversion circuit module is electrically connected to a display screen; and power supply is provided by a power source module. In comparison with the prior art, the sensor disclosed by the invention has the beneficial effects that less damage is brought to a flow field; measurement inertia is small; low wind speeds can be measured; accuracy is high; service life is long; technologies are simple; output signals are large; the structure is reliable; the wind speeds and wind directions can be measured simultaneously; installation space is reduced; and interference to airflows is small. The sensor disclosed by the invention is also characterized by light mass, the high accuracy, the long service life and the simple and reliable structure.
Description
Technical field
The present invention relates to a kind of lightweight wind direction and wind velocity sensor.
Background technology
Air velocity transducer can monitor wind speed size continuously, and can carry out the important instrument of display in real time to the wind speed of present position.This sensor is widely used in mine, electric power, tobacco, and medicine etc. needs the field of Real-Time Monitoring wind speed.The detection and control quality of the type of air velocity transducer and the direct influential system air quantity of performance.Air velocity transducer is various in style, and the most frequently used is pitot tube type air velocity transducer, ultrasound wave vortex air velocity transducer, screw propeller air velocity transducer and hot line, hot diaphragm type air velocity transducer etc.At present, the air quantity variable end device of China and American-European each producer all adopts pitot tube type air velocity transducer.Existing pitot tube type air velocity transducer has good precision in 4-16m/s scope, but has limitation in little measuring wind speed, cannot measure lower than 2m/s, cannot use in the measurement occasion of some small wind speed.
Chinese patent 201520608389.8, disclosed a kind of micro-air velocity transducer, comprise shell, hollow feeler, extension bar, display screen, button and sensor module circuitry plate, sensor module circuitry plate is arranged on enclosure, display screen and button are arranged on shell, feeler is fixed by extension bar and sensor module circuitry plate, the bar wall of feeler has total head pressure tap, position corresponding with total head pressure tap on bar wall has static pressure pressure tap, a total head pressure tap and a static pressure pressure tap are a pair air hole, feeler have multipair air hole.
Although it has the following advantages: by arranging multipair air vent, can make that air mixes evenly, the wind speed between 0-20m/s can be measured, be particularly useful for the measurement of 0.2 ~ 2m/s gentle breeze speed, precision reaches 0.1m/s, the air velocity transducer having filled up pitot tube principle can not measure the blank of gentle breeze speed, makes measured value more accurate.
But its shortcoming is: during use, the face, hole of total head pressure tap is vertical with airflow direction, and position corresponding with total head pressure tap on bar wall has static pressure pressure tap, has limitation during use.
Chinese patent 201220738970.8, discloses a kind of air velocity transducer, comprising: housing, and described housing has inner chamber and the first helicitic texture; Wind speed mechanism, is located on described housing; Driving shaft mechanism, is located in the described inner chamber of described housing, and is connected with described wind speed mechanism; Bearning mechanism, is located in the described inner chamber of described housing, is connected with described inner walls, and be connected with described driving shaft mechanism;
Wind speed change-over circuit module, is located at the described inner chamber of described housing, and the wind speed change for described wind speed mechanism being detected converts digital signal to and exports;
Supply unit with described wind speed change-over circuit model calling, and is its power supply;
Base mechanism, comprise base, described base has the second helicitic texture coordinated with described first helicitic texture, described base mechanism realizes being threaded togather with described housing with coordinating of described first screw thread by described second screw thread, thus by described driving shaft mechanism, described Bearning mechanism and described wind speed change-over circuit module package are in the described inner chamber of described housing;
It is characterized in that: described base mechanism is provided with the first location structure, described housing is provided with the second location structure; Described sensor also comprises card door bolt positioning element; Be threaded after mutually screwing described in passing through with described base mechanism when described housing, described card door bolt positioning element coordinates with described first location structure and described second location structure respectively, makes to form relative positioning in the circumferential between described base mechanism and described housing.
Although it has the following advantages: described base mechanism is provided with the first location structure, described housing is provided with the second location structure; Described sensor also comprises card door bolt positioning element; Be threaded after mutually screwing described in passing through with described base mechanism when described housing, described card door bolt positioning element coordinates with described first location structure and described second location structure respectively, makes to form relative positioning in the circumferential between described base mechanism and described housing.Above-mentioned design can housing is relative with base screw after, even if shake, also can not loosen again, thus affect accuracy of detection, affect the functional reliability of air velocity transducer, this is because both have been carried out relative positioning by card door bolt positioning element in the circumferential.
But it detects wind speed and direction by rotary part in measuring process, air velocity transducer and propeller air velocity transducer because of gyrating mass limited, sensor device inertia is larger, rotating part destroys flow field, can not measure lower wind speed, error is comparatively large, and serviceable life is limited.
Summary of the invention
The present invention needs the problem solved to be for above-mentioned the deficiencies in the prior art, and provides a kind of lightweight wind direction and wind velocity sensor.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of lightweight wind direction and wind velocity sensor, comprise base, the support of 7 fonts, wind sensitive rod, the induction frame of octagon, support is fixed on base, induction frame is arranged on the upper surface of base, wind sensitive rod is suspended on support, wind sensitive rod is positioned at the central axis of induction frame, the free end of wind sensitive rod is lower than the upper edge responding to frame, the vertical range between each limit and free end of wind sensitive rod of induction frame is 0.1-5mm, the inner side on each limit of induction frame is equipped with strain gauge, strain gauge sends the signal detected to wind speed change-over circuit module, wind speed change-over circuit module is electrically connected with display screen, power module is strain gauge, wind speed change-over circuit module and display screen provide power supply,
The cross section of described wind sensitive rod is octagon, and it is hollow-core construction;
Described strain gauge, for detecting the stress between the free end of wind sensitive rod and each limit of induction frame, and sends wind speed change-over circuit module to by stress signal;
Described wind speed change-over circuit module, for receiving the stress signal that strain gauge transmits, and counter stress signal is converted to wind velocity signal, then wind velocity signal is converted to digital signal output;
Described display screen, for showing the wind speed and direction information that wind speed change-over circuit module exports.
The vertical range between each limit and free end of wind sensitive rod of induction frame is 0.1-2mm.
Described base is disc.
A/D converter is provided with in described wind speed change-over circuit module.
Described strain gauge is resistance type sensor.
Compared with prior art, the invention has the beneficial effects as follows:
(1) destruction of stream field of the present invention is little, measurement inertia is little, can measure low wind speed, precision is high, long service life;
(2) technique is simple, output signal is large, structure is reliable;
(3) energy measuring wind and wind direction simultaneously;
(4) installing space is saved, little to flow perturbation;
(5) the present invention have that quality is light, precision is high simultaneously, the long-life, feature simple and reliable for structure;
(6) corresponding eight wind directions of the induction frame of octagon, can find out wind direction very intuitively;
(7) the wind sensitive rod quality of hollow-core construction is lighter, sensitiveer to the induction of gentle breeze.
Accompanying drawing explanation
Fig. 1 is the structural representation of lightweight wind direction and wind velocity sensor of the present invention;
Wherein, 1, base, 2, support, 3, wind sensitive rod, 4, induction frame, 5, strain gauge, 6, wind speed change-over circuit module, 7, display screen, 8, power module.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
Wherein, 1, base, 2, support, 3, wind sensitive rod, 4, induction frame, 5, strain gauge, 6, wind speed change-over circuit module, 7, display screen, 8, power module.
As shown in Figure 1, a kind of lightweight wind direction and wind velocity sensor, comprise base, the support of 7 fonts, wind sensitive rod, the induction frame of octagon, support is fixed on base, induction frame is arranged on the upper surface of base, wind sensitive rod is suspended on support, wind sensitive rod is positioned at the central axis of induction frame, the free end of wind sensitive rod is lower than the upper edge responding to frame, the vertical range between each limit and free end of wind sensitive rod of induction frame is 0.1-5mm, the inner side on each limit of induction frame is equipped with strain gauge, strain gauge sends the signal detected to wind speed change-over circuit module, wind speed change-over circuit module is electrically connected with display screen, power module is strain gauge, wind speed change-over circuit module and display screen provide power supply,
The cross section of described wind sensitive rod is octagon, and it is hollow-core construction;
Described strain gauge, for detecting the stress between the free end of wind sensitive rod and each limit of induction frame, and sends wind speed change-over circuit module to by stress signal;
Described wind speed change-over circuit module, for receiving the stress signal that strain gauge transmits, and counter stress signal is converted to wind velocity signal, then wind velocity signal is converted to digital signal output;
Described display screen, for showing the wind speed and direction information that wind speed change-over circuit module exports.
The vertical range between each limit and free end of wind sensitive rod of induction frame is 0.1-2mm.
Described base is disc.
A/D converter is provided with in described wind speed change-over circuit module.
Described strain gauge is resistance type sensor.
Compared with prior art, the invention has the beneficial effects as follows:
(1) destruction of stream field of the present invention is little, measurement inertia is little, can measure low wind speed, precision is high, long service life;
(2) technique is simple, output signal is large, structure is reliable;
(3) energy measuring wind and wind direction simultaneously;
(4) installing space is saved, little to flow perturbation;
(5) the present invention have that quality is light, precision is high simultaneously, the long-life, feature simple and reliable for structure;
(6) corresponding eight wind directions of the induction frame of octagon, can find out wind direction very intuitively;
(7) the wind sensitive rod quality of hollow-core construction is lighter, sensitiveer to the induction of gentle breeze.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on instructions, must determine its technical scope according to right.
Claims (5)
1. a lightweight wind direction and wind velocity sensor, it is characterized in that: comprise base, the support of 7 fonts, wind sensitive rod, the induction frame of octagon, support is fixed on base, induction frame is arranged on the upper surface of base, wind sensitive rod is suspended on support, wind sensitive rod is positioned at the central axis of induction frame, the free end of wind sensitive rod is lower than the upper edge responding to frame, the vertical range between each limit and free end of wind sensitive rod of induction frame is 0.1-5mm, the inner side on each limit of induction frame is equipped with strain gauge, strain gauge sends the signal detected to wind speed change-over circuit module, wind speed change-over circuit module is electrically connected with display screen, power module is strain gauge, wind speed change-over circuit module and display screen provide power supply,
The cross section of described wind sensitive rod is octagon, and it is hollow-core construction;
Described strain gauge, for detecting the stress between the free end of wind sensitive rod and each limit of induction frame, and sends wind speed change-over circuit module to by stress signal;
Described wind speed change-over circuit module, for receiving the stress signal that strain gauge transmits, and counter stress signal is converted to wind velocity signal, then wind velocity signal is converted to digital signal output;
Described display screen, for showing the wind speed and direction information that wind speed change-over circuit module exports.
2. lightweight wind direction and wind velocity sensor according to claim 1, is characterized in that: the vertical range between each limit and free end of wind sensitive rod of induction frame is 0.1-2mm.
3. lightweight wind direction and wind velocity sensor according to claim 1, is characterized in that: described base is disc.
4. lightweight wind direction and wind velocity sensor according to claim 1, is characterized in that: be provided with A/D converter in described wind speed change-over circuit module.
5. lightweight wind direction and wind velocity sensor according to claim 1, is characterized in that: described strain gauge is resistance type sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510966435.6A CN105466490B (en) | 2015-12-22 | 2015-12-22 | A kind of lightweight wind direction and wind velocity sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510966435.6A CN105466490B (en) | 2015-12-22 | 2015-12-22 | A kind of lightweight wind direction and wind velocity sensor |
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| CN105466490A true CN105466490A (en) | 2016-04-06 |
| CN105466490B CN105466490B (en) | 2017-11-10 |
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| CN201510966435.6A Active CN105466490B (en) | 2015-12-22 | 2015-12-22 | A kind of lightweight wind direction and wind velocity sensor |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04145373A (en) * | 1990-10-08 | 1992-05-19 | Fujitsu Ltd | Anemometer |
| CN103076464A (en) * | 2012-12-20 | 2013-05-01 | 东南大学 | Wind-speed and wind-direction sensor |
| CN103278659A (en) * | 2013-05-20 | 2013-09-04 | 东南大学 | Wind speed sensor based on stress measurement |
| CN103529239A (en) * | 2013-10-31 | 2014-01-22 | 东南大学 | Suspended three-dimensional wind speed and direction sensor structure |
| CN103675329A (en) * | 2013-12-11 | 2014-03-26 | 苏州市峰之火数码科技有限公司 | Pressure intensity sensing type wind power monitor |
-
2015
- 2015-12-22 CN CN201510966435.6A patent/CN105466490B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04145373A (en) * | 1990-10-08 | 1992-05-19 | Fujitsu Ltd | Anemometer |
| CN103076464A (en) * | 2012-12-20 | 2013-05-01 | 东南大学 | Wind-speed and wind-direction sensor |
| CN103278659A (en) * | 2013-05-20 | 2013-09-04 | 东南大学 | Wind speed sensor based on stress measurement |
| CN103529239A (en) * | 2013-10-31 | 2014-01-22 | 东南大学 | Suspended three-dimensional wind speed and direction sensor structure |
| CN103675329A (en) * | 2013-12-11 | 2014-03-26 | 苏州市峰之火数码科技有限公司 | Pressure intensity sensing type wind power monitor |
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| CN105466490B (en) | 2017-11-10 |
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Inventor after: Li Feng Inventor after: Zuo Nina Inventor after: Hu Weiquan Inventor before: Yu Shenglin |
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Effective date of registration: 20170930 Address after: 233010 Youyi Road 925, hi tech Development Zone, Anhui, Bengbu Applicant after: Bengbu Gaoling Transducer System Engineering Co., Ltd. Address before: 214135 Jiangsu city of Wuxi province innovation building No. 97 Linghu Wuxi national hi tech Industrial Development Zone, road two South Building Room 101 Applicant before: Wuxi NUIST Weather Sensor Network Technology Co., Ltd. |
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