CN202956389U - Portable wind speed measuring device - Google Patents
Portable wind speed measuring device Download PDFInfo
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- CN202956389U CN202956389U CN 201220512632 CN201220512632U CN202956389U CN 202956389 U CN202956389 U CN 202956389U CN 201220512632 CN201220512632 CN 201220512632 CN 201220512632 U CN201220512632 U CN 201220512632U CN 202956389 U CN202956389 U CN 202956389U
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- wind
- velocity signal
- wind speed
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- wind velocity
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Abstract
The utility model discloses a portable wind speed measuring device belonging to the measurement instrument technology field. The technical scheme is that the portable wind speed measuring device comprises a wind speed signal measuring module, a wind speed signal amplification module, a wind speed signal processing module and a wind speed signal display module, the wind speed signal processing module comprises a one-chip microcomputer and an A/D converter, and the wind speed signal measuring module, the wind speed signal amplification module, the A/D converter, the one-chip microcomputer, the wind speed signal processing module and the wind speed signal display module are connected orderly. The effects of the utility model are that a wind vane part of the measuring device is detachable, so that the portable wind speed measuring device is not only convenient to carry but also easy to maintain and replace, and enables the wind speed signal measurement, storage and display functions to be realized.
Description
Technical field
The utility model belongs to the surveying instrument technical field, relates in particular to a kind of portable wind speed measuring device.
Background technology
Anemoscope is to be used for recording the stroke of wind and the device of observation instantaneous wind speed for units such as observatory, chemical industry, power station, industrial and mining enterprises, realizes digitizing and the robotization of wind speed indication, and relevant unit is had important practical significance.
Present anemoscope both domestic and external mainly is divided three classes, the first kind is the propeller type wind direction and wind velocity sensor, measuring wind speed is to utilize the three-bladed propeller of a low inertia as sensing element, blade rotates with the wind and drives wind velocity cord disk and carries out the corresponding electric impulse signal of optoelectronic scanning output, this propeller type air velocity transducer property confined is relatively poor, and dynamic property is general.Equations of The Second Kind is three-cup wind speed sensor, and its sensing element is three glasss of wind assemblies, is comprised of three carbon fiber vanes and wind frame, spinner is multiple tooth revolving cup and slit optocoupler, when rotating when the power effect of vane wind-engaging, by the rotation of axle revolving cup in the slit optocoupler, output frequency signal, but this device has moving-member, so easily wearing and tearing, and volume is large, needs often to safeguard, and be only applicable to measure larger wind speed, be not suitable for little spatial flow field measurement.the 3rd class is the ultrasonic wind speed sensor, difference according to measuring principle, at present following several method is mainly adopted in the measurement of gas flow rate: time difference method, Doppler method, vortex street measuring wind speed method, correlation method and wave beam deflection method etc., these method measuring accuracy are higher, but ultrasound wave can be subject to the impact of temperature at the process medium velocity of propagating, therefore when using ultrasound ripple doppler Method is measured, must carry out temperature compensation, to improve the accuracy of system, in addition, if ultrasound wave has been operated in noise circumstance, its signal can be flooded by noise, be unfavorable for measuring, and instrument is expensive, measure cost relatively high.
A kind of Portable wind has also been proposed to wind speed measuring device in utility model patent " Portable wind aerovane " (Granted publication number for CN202196076U), drive respectively wind velocity cord disk and wind direction Gray code-disc rotates by wind speed sensing element and wind direction sensing element in optocoupler, produce pulse signal, and show in display unit after treatment, this device volume is small and exquisite, quality is light, but measurement component can not dismantle, easily damage and not easy care and replacing in the process of preserving.
Summary of the invention
The utility model is for the device of the present measuring wind described in background technology, and the problem existing aspect the accuracy of measuring method and measurement mechanism convenience has proposed a kind of portable wind speed measuring device.
Its technical scheme is, a kind of portable wind speed measuring device is characterized in that, described device comprises wind velocity signal measurement module, wind velocity signal amplification module, wind velocity signal processing module and wind velocity signal display module; Described wind velocity signal processing module comprises single-chip microcomputer and A/D converter;
Wherein, described wind velocity signal measurement module, wind velocity signal amplification module, A/D converter, single-chip microcomputer, wind velocity signal processing module are connected with the wind velocity signal display module and are connected.
Described wind velocity signal measurement module is placed in moving air; Described wind velocity signal measurement module comprises air velocity transducer, wind direction axle and weathervane; Described air velocity transducer comprises resistance strain gage and flexible member; Described air velocity transducer and described wind direction axle and weathervane are connected as a single entity; Described weathervane and wind direction axle are fixed by holding screw.
Described wind velocity signal display module comprises display screen.
Described device also comprises base, box body and keyswitch; Described wind velocity signal amplification module, wind velocity signal display module, single-chip microcomputer and A/D converter are installed on box body inside; Described keyswitch and display screen are arranged on the box body front end; Described floor installation and box body top, and be connected with wind direction axle lower end.
Described wind direction is designated as the detachable type weathervane; Described weathervane comprises balance bob, screw thread, screw and empennage; Described weathervane is connected with the wind direction axle by screw, and balance bob adopts screw-type, is connected with empennage by screw thread.
The beneficial effects of the utility model are: the weathervane partial design of measurement mechanism is detachable type, and is not only easy to carry, and is easy to safeguard and change.Simultaneously, the utility model can be realized measurement, storage and the Presentation Function of wind velocity signal simultaneously, compared with prior art, overcome prior art and required high, expensive, measurement result out of true, carry the problem such as inconvenience for temperature and noise signal, satisfied the measuring wind speed occasion of field or electricity shortage.
Description of drawings
Fig. 1 is the structural representation of a kind of portable wind speed measuring device of providing of the utility model;
Fig. 2 is the outside drawing of a kind of portable wind speed measuring device of providing of the utility model;
Fig. 3 is the weathervane structural drawing of a kind of portable wind speed measuring device of providing of the utility model;
Fig. 4 is the first circuit structure schematic diagram that the utility model embodiment provides;
Fig. 5 be the utility model embodiment provide the second circuit structure principle chart;
Wherein, 1-air velocity transducer; 2-wind direction axle; The 3-balance bob; The 4-holding screw; The 5-base; The 6-display screen; The 7-keyswitch; The 8-weathervane; The 9-resistance strain gage; The 10-flexible member; The 11-screw thread; The 12-screw; The 13-empennage.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment is elaborated.Should be emphasized that, following explanation is only exemplary, rather than in order to limit scope of the present utility model and application thereof.
Fig. 1 is the structural representation of a kind of portable wind speed measuring device of providing of the utility model.In Fig. 1, described device comprises wind velocity signal measurement module, wind velocity signal amplification module, wind velocity signal processing module and wind velocity signal display module; Described wind velocity signal processing module comprises single-chip microcomputer and A/D converter; Wherein, described wind velocity signal measurement module, wind velocity signal amplification module, A/D converter, single-chip microcomputer, wind velocity signal processing module are connected with the wind velocity signal display module and are connected.Described wind velocity signal measurement module is used for wind velocity signal is measured; Described wind velocity signal amplification module is used for wind velocity signal is amplified and filtering; Described wind velocity signal processing module is used for wind velocity signal is carried out analyzing and processing; Described wind velocity signal display module is used for wind velocity signal is carried out real-time demonstration.
Fig. 2 is the outside drawing of a kind of portable wind speed measuring device of providing of the utility model.In Fig. 2, a kind of portable wind speed measuring device comprises: air velocity transducer, wind direction axle, balance bob, holding screw, base, display screen, keyswitch, weathervane, resistance strain gage and flexible member.Wherein, the wind velocity signal measurement module is made of resistance strain gage and flexible member, it and wind direction axle and weathervane three are connected as a single entity, weathervane is designed to detachable type, need during measurement to be fixed with holding screw, wind direction axle lower end is connected with base, and floor installation is on the box top that display screen and keyswitch and signal processing module circuit are housed.
When there being wind out-of-date, measurement mechanism 1 is along with wind direction axle rotation and total and wind direction is perpendicular, like this because thereby the resistance that is subject to wind makes flexible member generation deformation, utilize resistance-strain measure this deformation quantity and finally by Wheatstone bridge, the form of wind speed information with voltage showed.
to measure above-mentioned magnitude of voltage and carry out analyzing and processing in the wind velocity signal processing module, the wind velocity signal processing module is by amplifier, A/D converter and single-chip microcomputer consist of, at first, in wind velocity signal amplification module part, amplifying circuit amplifies the small voltage value of measuring wind speed module output and filtering, and then extract the electric signal relevant with wind speed, again will be through carrying out digitized processing in the voltage signal input a/d converter that amplifies, and transformation result is inputed in single-chip microcomputer, single-chip microcomputer is chosen the voltage signal of required enlargement factor according to the result of A/D conversion, and be converted into that wind velocity signal sends and carry out real-time demonstration on display.
Fig. 3 is the weathervane structural drawing of a kind of portable wind speed measuring device of providing of the utility model, and in Fig. 3, the structure of detachable weathervane comprises balance bob, screw thread, screw and empennage.Weathervane is connected with the wind direction axle by screw, and balance bob is designed to screw-type, can partly be connected and separate with empennage by screw thread like this.During installation, at first weathervane empennage part is connected with the wind direction axle, and then the balance bob part is installed, during dismounting, need first balance bob partly to be unloaded, and then remove the empennage part.
Fig. 4 and Fig. 5 are the circuit theory diagrams of the whole measurement mechanism that provides of the utility model.Whole circuit all adopts direct current 5V voltage to power, and therefore the dc-battery of 7.5V need to be changed direct supply U by circuit of three-terminal voltage-stabilizing integrated LM7805
ACPositive pole connect the first strain resistor R11, the first resistance R 13 and the first preset balance resistance R
PCommon node, negative pole connects the second strain resistor R12, the second resistance R 14 and the first preset balance resistance R
PCommon node, output voltage U
0An end connect the first strain resistor R11, the second strain resistor R12 and the second preset balance resistance R
tCommon node, the other end connects the common node of the first resistance and the second resistance.Signal measurement module utilizes the resistance strain measurement technology wind velocity signal to be converted to the change in resistance of the first strain resistor R11 and the second strain resistor R12, and adopts Wheatstone bridge that the increased resistance value of strain resistor is converted into the voltage change that can measure.
No. 1 pin of amplifier U11 is connected to the Ui1 end of signal measurement module, No. 2 pins of amplifier U11 are connected to No. 2 pins of potentiometer R21, No. 3 pins of amplifier U11 are connected to No. 1 pin (No. 3 pins of potentiometer are unsettled, omit herein) of potentiometer R21; No. 4 pins of amplifier U11 are connected to the Ui2 end of signal measurement module; No. 6 pins of amplifier U11 connect No. 6 pins of reference voltage source U21 and the common node of capacitor C 05; No. 7 pin connecting resistance R4 of amplifier U11 and the common node of capacitor C 08; No. 8 pins of amplifier U11 connect the common node of 5V direct supply, capacitor C 01 and capacitor C 02; No. 2 pins of reference voltage stabilizing source U21 connect the common node of 5V direct supply, capacitor C 03 and capacitor C 04.
No. 48 pins of ATmega128 single-chip microcomputer and LED light, resistance R 3 and GND earth potential are connected in series successively, No. 10 pin to 17 pins of ATmega128 single-chip microcomputer connect respectively the DB0 pin of LCD1602 LCD MODULE to the DB7 pin, No. 54 pins of ATmega128 single-chip microcomputer connect No. 4 pins of jtag interface, No. 55 pins of ATmega128 single-chip microcomputer connect No. 3 pins of jtag interface, No. 56 pins of ATmega128 single-chip microcomputer connect No. 2 pins of jtag interface, No. 57 pins of ATmega128 single-chip microcomputer connect No. 1 pin of jtag interface, No. 52 pins of ATmega128 single-chip microcomputer connect No. 6 pins of jtag interfaces and the common node of direct supply VCC, No. 64 pins of ATmega128 single-chip microcomputer connect capacitor C 09, the common node of No. 62 pins of inductance H1 and ATmega128 single-chip microcomputer, No. 63 pins of ATmega128 single-chip microcomputer connect No. 5 pins of jtag interface,
No. 51 pins of ATmega128 single-chip microcomputer connect first signal keyswitch K1, No. 50 pins of ATmega128 single-chip microcomputer connect first signal keyswitch K2, No. 49 pins of ATmega128 single-chip microcomputer connect first signal keyswitch K3, No. 32 pins of ATmega128 single-chip microcomputer connect the RS pin of LCD1602 LCD MODULE, No. 33 pins of ATmega128 single-chip microcomputer connect the R/W pin of LCD1602 LCD MODULE, No. 32 pins of ATmega128 single-chip microcomputer connect the E pin of LCD1602 LCD MODULE, No. 23 pins of ATmega128 single-chip microcomputer connect No. 3 pins of OSC crystal oscillator, the VO pin of LCD1602 LCD MODULE connects right-hand member and the intermediate node of slide rheostat Rg,
For avoiding noise, digital ground potential GND is connected with simulation earth potential AGND by magnetic bead R5.
The numeral ground potential GND connects respectively negative pole, the pin 2 of LM7805, capacitor C 06, capacitor C 07, resistance R 3, keyswitch K1, K2, the K3 of 7.5V dc-battery, the pin 2 of the pin 22 of single chip computer AT mega128, the pin 63 of single chip computer AT mega128, crystal oscillator and all GND pins of LCD MODULE LCD1602.
Simulation earth potential AGND connects respectively pin 5, capacitor C 01, capacitor C 02, capacitor C 03, capacitor C 04, capacitor C 05, the pin 4 of reference voltage source U21, capacitor C 08, the capacitor C 09 of strain resistor R12, resistance R 14, amplifier U11.
Power module mainly is made of 7.5V battery, circuit of three-terminal voltage-stabilizing integrated LM7805, capacitor C 06, capacitor C 07; The wind velocity signal measurement module is mainly by strain resistor R11, strain resistor R12, resistance R 13, resistance R 14, preset balance resistance R
tAnd R
PConsist of; The wind velocity signal amplification module mainly is made of amplifier U11, reference voltage source U21, potentiometer R21, capacitor C 01, capacitor C 02, capacitor C 03, capacitor C 04, capacitor C 05; The wind velocity signal processing module is made of single chip computer AT mega128, crystal oscillator, jtag interface, LED1, resistance R 3, resistance R 4, resistance R 5, inductance H1, capacitor C 08, capacitor C 09, keyswitch K1, K2, K3; The wind velocity signal display module is made of liquid crystal display LCD1602, potentiometer Rg.
Order, the capacitance of capacitor C 06 is 0.1 μ F; The capacitance of capacitor C 07 is 0.33 μ F; The resistance of strain resistor R11 is 350 Ω; The resistance of strain resistor R12 is 350 Ω; The resistance of resistance R 13 is 350 Ω; The resistance of resistance R 14 is 350 Ω; Preset balance resistance R
PBe 10K Ω; Preset balance resistance R
tBe 10K Ω; Potentiometer R21 will adjust as required; The capacitance of capacitor C 01 is 0.1 μ F; The capacitance of capacitor C 02 is 10 μ F; The capacitance of capacitor C 03 is 10 μ F; The capacitance of capacitor C 04 is 0.1 μ F; The capacitance of capacitor C 05 is 0.1 μ F; The resistance of resistance R 3 is 1K Ω; The resistance of resistance R 4 is 4.7K Ω; The capacitance of capacitor C 08 is 100pF; The capacitance of capacitor C 09 is 100pF; The value of inductance H1 is 10 μ H.
Wherein, reference voltage source ADR421 can be converted to the supply voltage of 5V 2.5V output, and in wind velocity signal processing module part, it is connected to the REF pin of amplifier AD8221, can guarantee that output voltage values after amplifying is for just.Capacitor C 03 and capacitor C 04 are input capacitance, can improve the circuit transient response and reduce power supply noise, and capacitor C 05 be output capacitance, are used for any low-level noise voltage of filtering, the normal operation of assurance circuit.output voltage values after amplifying connects the ADC0 port (No. 61 pins) in the ATmega128 single-chip microcomputer, because carry A/D converter in the ATmega128 single-chip microcomputer, therefore can directly the input analog voltage signal be converted to the digital signal that himself can identify, ten successively comparison A/D conversions are adopted in the A/D conversion, convert the aanalogvoltage of input the digital quantity of 10 to, and transformation result is inputed in the memory RAM of single-chip microcomputer and store, when the quantity of digital signal of storage has reached predetermined threshold, single-chip microcomputer can be removed the signal in storer and be begun to store new data.Wherein, the reference voltage source of ADC (VREF) has reflected the conversion range of ADC, VREF can be AVCC (No. 64 pins), inner 2.56V benchmark or the voltage (selecting AVCC here) that is external in AREF pin (No. 62 pins), AVCC is connected with ADC by a passive switch, reference voltage carries out decoupling zero by add an electric capacity on the AREF pin, with squelch better.The OSC crystal oscillator is the external crystal-controlled oscillation of single-chip microcomputer, and selected crystal oscillator frequency is 11.0592MHZ in the present embodiment, and it produces the necessary clock frequency of single-chip microcomputer in conjunction with the circuit of single-chip microcomputer inside.Jtag interface is that single-chip microcomputer is downloaded emulator interface, program can be write in single-chip microcomputer by it.At last, the signal that to process through single-chip microcomputer inputs in the LCD1602 LCD MODULE with the form of ASCII character and shows, therefore because this supply voltage that installs all components and parts is 5V, the direct supply of 7.4V can be changed by the electric capacity that adds two capacitances to be respectively 0.10 μ F and 0.33 μ F in circuit of three-terminal voltage-stabilizing integrated LM7805 outside in diagram.In addition, the Led pilot lamp is connected with the input/output port 48 of single-chip microcomputer, is used for judging whether single-chip microcomputer works.
The above; it is only the better embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement are within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.
Claims (4)
1. a portable wind speed measuring device, is characterized in that, described device comprises wind velocity signal measurement module, wind velocity signal amplification module, wind velocity signal processing module and wind velocity signal display module; Described wind velocity signal processing module comprises single-chip microcomputer and A/D converter;
Wherein, described wind velocity signal measurement module, wind velocity signal amplification module, A/D converter, single-chip microcomputer are connected with the wind velocity signal display module and are connected;
Described wind velocity signal measurement module is placed in moving air; Described wind velocity signal measurement module comprises air velocity transducer, wind direction axle and weathervane; Described air velocity transducer comprises resistance strain gage and flexible member; Described air velocity transducer and described wind direction axle and weathervane are connected as a single entity; Described weathervane and wind direction axle are fixed by holding screw.
2. a kind of portable wind speed measuring device according to claim 1, is characterized in that, described wind velocity signal display module comprises display screen.
3. a kind of portable wind speed measuring device according to claim 2, is characterized in that, described device also comprises base, box body and keyswitch; Described wind velocity signal amplification module, wind velocity signal display module, single-chip microcomputer and A/D converter are installed on box body inside; Described keyswitch and display screen are arranged on the box body front end; Described floor installation and box body top, and be connected with wind direction axle lower end.
4. a kind of portable wind speed measuring device according to claim 1, is characterized in that, described wind direction is designated as the detachable type weathervane; Described weathervane comprises balance bob, screw thread, screw and empennage; Described weathervane is connected with the wind direction axle by screw, and balance bob adopts screw-type, is connected with empennage by screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220512632 CN202956389U (en) | 2012-10-08 | 2012-10-08 | Portable wind speed measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220512632 CN202956389U (en) | 2012-10-08 | 2012-10-08 | Portable wind speed measuring device |
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| CN202956389U true CN202956389U (en) | 2013-05-29 |
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ID=48461954
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220512632 Expired - Fee Related CN202956389U (en) | 2012-10-08 | 2012-10-08 | Portable wind speed measuring device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592460A (en) * | 2013-11-23 | 2014-02-19 | 大连尚能科技发展有限公司 | Signal conversion device of current type air velocity sensor |
| 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 |
| CN105259369A (en) * | 2015-10-27 | 2016-01-20 | 国家海洋技术中心 | Wind speed and direction measurement instrument |
| CN105699684A (en) * | 2016-03-04 | 2016-06-22 | 陈烁 | Simple indoor wind scale instrument |
| CN106093462A (en) * | 2016-07-30 | 2016-11-09 | 无锡乐华自动化科技有限公司 | A kind of pipe flow speed sensor |
| CN107014444A (en) * | 2017-05-27 | 2017-08-04 | 山东罗泰风机有限公司 | A kind of blower fan dynamic performance parameter measuring system |
| CN107192471A (en) * | 2017-04-13 | 2017-09-22 | 南京史利姆电子科技有限公司 | A kind of New temperature compensation circuit and compensation method for pneumatic sensor |
| CN109580981A (en) * | 2018-11-27 | 2019-04-05 | 东南大学 | Air velocity transducer based on flexible inductance-silicon substrate inductance structure |
-
2012
- 2012-10-08 CN CN 201220512632 patent/CN202956389U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592460A (en) * | 2013-11-23 | 2014-02-19 | 大连尚能科技发展有限公司 | Signal conversion device of current type air velocity sensor |
| 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 |
| CN105259369A (en) * | 2015-10-27 | 2016-01-20 | 国家海洋技术中心 | Wind speed and direction measurement instrument |
| CN105699684A (en) * | 2016-03-04 | 2016-06-22 | 陈烁 | Simple indoor wind scale instrument |
| CN106093462A (en) * | 2016-07-30 | 2016-11-09 | 无锡乐华自动化科技有限公司 | A kind of pipe flow speed sensor |
| CN107192471A (en) * | 2017-04-13 | 2017-09-22 | 南京史利姆电子科技有限公司 | A kind of New temperature compensation circuit and compensation method for pneumatic sensor |
| CN107014444A (en) * | 2017-05-27 | 2017-08-04 | 山东罗泰风机有限公司 | A kind of blower fan dynamic performance parameter measuring system |
| CN107014444B (en) * | 2017-05-27 | 2023-08-29 | 山东罗泰风机有限公司 | Fan dynamic performance parameter measurement system |
| CN109580981A (en) * | 2018-11-27 | 2019-04-05 | 东南大学 | Air velocity transducer based on flexible inductance-silicon substrate inductance structure |
| CN109580981B (en) * | 2018-11-27 | 2020-03-31 | 东南大学 | Wind speed sensor based on flexible inductor-silicon-based inductor structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130529 Termination date: 20131008 |