CN209117713U - A kind of modified airspeedometer of self-heating temperature - Google Patents
A kind of modified airspeedometer of self-heating temperature Download PDFInfo
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- CN209117713U CN209117713U CN201822163898.0U CN201822163898U CN209117713U CN 209117713 U CN209117713 U CN 209117713U CN 201822163898 U CN201822163898 U CN 201822163898U CN 209117713 U CN209117713 U CN 209117713U
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Abstract
The utility model relates to a kind of modified airspeedometers of self-heating temperature, including detection bar, the side of detection bar is equipped with probe, probe is internal to be successively arranged air velocity transducer, temperature sensor, platinum resistance thermometer sensor, and temperature-sensing element (device), the other side of detection bar, which is equipped with, surveys air port, it surveys air port and is equipped with direction inductor, the lower part of detection bar is successively arranged turntable and shell, enclosure interior is respectively equipped with air velocity transducer measuring circuit, temperature sensor measurement circuit, platinum film probe measurement circuit and automatic controller, and automatic controller includes storage module and wireless communication module.The utility model automatic adjustment survey air port is parallel with wind direction, then measures the numerical value of wind speed and temperature by the real-time detection of temperature sensor by platinum resistance thermometer sensor, and temperature-sensing element (device)；Meanwhile detection temperature is compensated, guarantee that the accuracy of real-time detection numerical value, strong antijamming capability are stored to measurement result and compared amendment, ensure that high-precision measurement for a long time.
Description
Technical field
The utility model belongs to airspeedometer technical field, in particular to a kind of modified airspeedometer of self-heating temperature.
Background technique
Measuring wind speed is inseparable with the daily production and life of people as one part and parcel of flow velocity fields of measurement.
The world today, in the important field such as aerospace, scientific experiment, modern agriculture and Meteorological Science, it and national economy, industry
Production, scientific research and environmental protection are closely bound up.Fluid parameter is Industrial Engineering, Scientific Measurement and the various economic cores of progress
Important parameter necessary to calculating, is the important component of energy measurement.With the rapid development of industrial automation, people are to wind
Speed, the measurement request of air quantity also increasingly increase.By the measurement of fluid flow rate, people will be seen that flow process, and according to
The flow regime of fluid carries out automatically controlling production technology, and then realizes effective management of the energy, to guarantee the matter of product
Amount improves production efficiency, energy saving.
The IFA300 hot line hot-die anemobiagraph measurement range of Chinese Marine University's research and development has reached 0.3 ~ 300m/s.But
It is that the system price is expensive, bulky, not Portable belt, is difficult to popularize in the industrial production.
Be nonstationary flow in general, measured medium is in multidirectional flow regime, flow field has inhomogeneities, be easy by
The influence of the environmental factors such as pressure, temperature change, humidity size, airflow stability is poor, and interference signal is more, leads to existing equipment
Apparatus measures miss by a mile, and numerical fluctuations are big, and accuracy is poor.The heat generated when temperature data is run by circuit is to wind speed
Temperature has a certain impact, and can become inaccuracy, not can guarantee prolonged high-precision effective detection.
Utility model content
The present invention provides a kind of modified airspeedometer of self-heating temperature, to solve poor anti jamming capability and length set forth above
The technical issues of time accuracy effectively detects.
The utility model solves above-mentioned technical problem and adopts the technical scheme that: a kind of modified wind speed of self-heating temperature
It counts, design feature is, including, detection bar, the side of detection bar is equipped with probe, and the internal wind speed that is successively arranged of probe senses
Device, temperature sensor, platinum resistance thermometer sensor, and temperature-sensing element (device), the other side of detection bar, which is equipped with, surveys air port, surveys air port and is equipped with wind direction
Inductor, the lower part of detection bar are successively arranged turntable and shell, and turntable will test bar and connect with shell, and detection bar turns on turntable
It is dynamic, servo motor is equipped on the right side of turntable, servo motor and direction inductor are electrically connected, and enclosure interior is respectively equipped with wind speed sensing
Device measuring circuit, temperature sensor measurement circuit, platinum film probe measurement circuit and automatic controller, air velocity transducer measuring circuit
It is equipped with A/D converter, temperature sensor measurement circuit is equipped with the second A/D converter, and platinum film probe measurement circuit on one side is set
There is single-chip microcomputer signal processing unit, the other end of platinum film probe measurement circuit is equipped with D/A converter, and automatic controller includes storage
Storing module and wireless communication module.
Further, the air velocity transducer and air velocity transducer measuring circuit and A/D converter are electrically connected, temperature sensing
Device and temperature sensor measurement circuit and the second A/D converter are electrically connected, air velocity transducer measuring circuit and temperature sensor
Measuring circuit is electrically connected with platinum film probe measurement circuit respectively, and A/D converter and the second A/D converter turn with D/A respectively
Parallel operation is electrically connected, and platinum resistance thermometer sensor, and temperature-sensing element (device) and platinum film probe measurement circuit are electrically connected, and automatic controller passes through D
/ A converter and platinum resistance thermometer sensor, and temperature-sensing element (device) are electrically connected.
Further, D/A converter output adjusts electric current and adjusts voltage.
Further, the temperature of the platinum resistance thermometer sensor, is 125 DEG C higher than the temperature of tested gas.
Further, the platinum resistance thermometer sensor, and temperature-sensing element (device) are greater than 10m/s the above are adjusting electric current in wind speed and adjust
Voltage positive value increases.
Further, the platinum resistance thermometer sensor, and temperature-sensing element (device) are less than 10m/s the following are adjusting electric current in wind speed and adjust
Voltage negative value is reduced.
Further, the shape of probe is acute angle tail shape.
The beneficial effects of the utility model are: the utility model is automatically adjusted survey air port using direction inductor,
Survey air port is arranged in parallel with wind direction, then is surveyed by platinum resistance thermometer sensor, and temperature-sensing element (device) by the real-time detection of temperature sensor
The numerical value of wind speed and temperature out；When wind speed is greater than 10m/s or more, D/A converter exports the adjusting electric current of positive value and adjusts
Voltage makes high wind speed flow through the temperature that platinum resistance thermometer sensor, and temperature-sensing element (device) are taken away and compensates, and guarantees real-time detection number
The accuracy of value；When wind speed is less than 10m/s or less, D/A converter exports reduced adjusting electric current and adjusts voltage, reduces
Influence of the heat that circuit generates when running to wind speed temperature, to improve the precision of instrument detection.Present apparatus volume microminiaturization, side
Portable belt, the automatic influence for detecting wind direction and being not easily susceptible to environment parameter, strong antijamming capability, in addition, automatic controller is comprehensive next
Amendment is stored and compared to measurement result, and the accuracy of the measurement of verifying ensure that high-precision measurement for a long time.
Detailed description of the invention
Fig. 1 is the schematic view of the front view of the utility model；
Fig. 2 is the structural schematic diagram of the probe of the utility model；
Fig. 3 is the structural block diagram of the part of the utility model；
Fig. 4 is the flow diagram of the utility model；
In figure: 1- detection bar, 11- probe, 111- air velocity transducer, 112- temperature sensor, 113- platinum resistance thermometer sensor, 114-
Temperature-sensing element (device), 12- survey air port, 121- direction inductor；2- turntable, 21- servo motor, 22- belt；3- shell, 31- wind
Fast sensor measuring circuit, 311- A/D converter, 32- temperature sensor measurement circuit, the second A/D converter of 321-, 33- platinum
Film probe measurement circuit, 331- single-chip microcomputer signal processing unit, 332- D/A converter, 34- automatic controller, 341- storage
Module, 342- wireless communication module, 343- computer.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It clearly and completely describes, it is clear that described embodiments are only a part of the embodiments of the present invention, rather than whole implementation
Example.The component of the utility model embodiment being usually described and illustrated herein in the accompanying drawings can carry out cloth with a variety of different configurations
Install meter.Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model is protected, but is merely representative of the selected embodiment of the utility model.Implementation based on the utility model
Example, those skilled in the art's every other embodiment obtained without making creative work belong to this
The range of utility model protection.
As an example, as shown in Figure 1, Figure 2 shown in Fig. 3 and Fig. 4, a kind of modified airspeedometer of self-heating temperature, design feature
It is, including, detection bar 1, the side of detection bar 1 can be equipped with probe 11, and 11 shape of popping one's head in is acute angle tail shape, probe
11 inside can be successively arranged air velocity transducer 111, temperature sensor 112, platinum resistance thermometer sensor, 113 and temperature-sensing element (device) 114,
The other side of detection bar 1 can be equipped with and survey air port 12, survey 12 lower part of air port and be equipped with direction inductor 121, the lower part of detection bar 1 can
To be successively arranged turntable 2 and shell 3, turntable 2 will test bar 1 and be attached with shell 3, and detection bar 1 can turn on turntable 2
It is dynamic, servo motor 21 can be equipped on the right side of turntable 2, servo motor 21 and direction inductor 121 are electrically connected, the inside of shell 3
Can be respectively equipped with air velocity transducer measuring circuit 31, temperature sensor measurement circuit 32, platinum film probe measurement circuit 33 and from
Movement controller 34, can be equipped with A/D converter 311 in air velocity transducer measuring circuit 31, on temperature sensor measurement circuit 32
It can be equipped with the second A/D converter 321, one end of platinum film probe measurement circuit 33 can be equipped with single-chip microcomputer signal processing unit
331, the other end of platinum film probe measurement circuit 33 can be equipped with D/A converter 332, and automatic controller 34 may include storage
Module 341, wireless communication module 342 and computer 343.
Preferably, the air velocity transducer 111 is electrically connected with air velocity transducer measuring circuit 31 and A/D converter 311,
Temperature sensor 112 and temperature sensor measurement circuit 32 and the second A/D converter 321 are electrically connected, air velocity transducer measurement
Circuit 31 and temperature sensor measurement circuit 32 can be electrically connected with platinum film probe measurement circuit 33 respectively, A/D conversion
Device 311 and the second A/D converter 321 can be electrically connected with D/A converter 332 respectively, platinum resistance thermometer sensor, 113 and temperature
Sensing element 114 can be electrically connected with platinum film probe measurement circuit 33, automatic controller 34 by D/A converter 332 with
Platinum resistance thermometer sensor, 113 and temperature-sensing element (device) 114 are electrically connected.
Preferably, the output of D/A converter 332 adjusts electric current and adjusts voltage.
Preferably, 125 DEG C higher than the temperature of tested gas of the temperature of the platinum resistance thermometer sensor, 113 or so.
Preferably, greater than 10m/s, the above are increase to adjust in wind speed for the platinum resistance thermometer sensor, 113 and temperature-sensing element (device) 114
Electric current and adjusting voltage.
Preferably, less than 10m/s, the following are reduce to adjust in wind speed for the platinum resistance thermometer sensor, 113 and temperature-sensing element (device) 114
Electric current and adjusting voltage.
In specific embodiment of the utility model, survey air port 12 in detection bar 1, due to the shape of opposite probe 11
The direction blown into for the axially bored line and air-flow of under the collective effect of acute angle tail shape and direction inductor 121, surveying air port 12 is flat
Row.Air velocity transducer 111 and temperature sensor 112 in probe 11 incude the variation of fluid (air) speed and temperature, automatically
Controller 34 simultaneously exports the analog signal of a variation in conditioning circuit front end, and front end analogue signal is by platinum film probe measurement electricity
Road 33 amplification, filtering and conversion operation, be converted to digital signal corresponding with analog signal, then according to wind speed, temperature with
The relationship of voltage carries out data processing to A/D converter 311 and 321 result of the second A/D converter, and then obtains wind speed, temperature
Value.
11 circuits of popping one's head in include two parts: a part is the air velocity transducer measuring circuit 31 of air velocity transducer 111；It is another
Part is the temperature sensor measurement circuit 32 of temperature sensor 112, and two groups of circuits are mutually indepedent, do not interfere with each other.Temperature sensing
The measuring wind speed of device measuring circuit 32 is to determine wind speed by measurement temperature, and in calculation of wind speed, system calls temperature
Degree compensates to improve air speed value measurement accuracy, and then eliminates influence of the gas temperature to measurement result during measuring wind speed.
Using pt20(model) temperature-sensing element (device) 114 of platinum resistance thermometer sensor, 113 and pt100 thermal resistance form typical favour this
Logical measuring bridge just constitutes the fundamental measurement circuit of probe 11 after connecting platinum film probe measurement circuit 33.
Using pt20(model) platinum resistance thermometer sensor, 113 front end be placed in wind field, electric bridge is initially in equilibrium state, platinum therein
Thermal resistance 113 is heated to above 125 DEG C of gas temperature or so；When flowing gas is by probe 11, the gas of flowing can band
The heat of platinum resistance thermometer sensor, 113 is walked, so that the temperature of platinum resistance thermometer sensor, 113 declines, 113 resistance value of platinum resistance thermometer sensor, becomes smaller, and destroys initial
The thermal equilibrium state of bridge balance and platinum resistance thermometer sensor, 113, electric bridge disequilibrium simultaneously will have a voltage signal to export from electric bridge；This
When feed circuit platinum film probe measurement circuit 33 output voltage of nonequilibrium bridge is amplified to and is fed back to platinum resistance thermometer sensor, 113, make
Constantly become larger by the electric current of platinum resistance thermometer sensor, 113, so that 113 resistance value of platinum resistance thermometer sensor, be made constantly to become larger, finally makes nonequilibrium bridge
Output voltage be gradually reduced.The platinum film probe measurement circuit 33 of feed circuit constantly regulate effect, will finally make bridge weight
Newly restore balance state.In feedback procedure, the output voltage of nonequilibrium bridge be able to reflect platinum resistance thermometer sensor, 113 variable quantity and
The variable quantity of wind speed.According to this characteristic, using the voltage of D/A converter 332 as output signal.Signal is through computer 343
It is sampled and is stored in storage module 341 by A/D converter 311 and the second A/D converter 321 after conditioning.
But heat can be generated since electric current flows through circuit board, which results in when calm, extra heat is in circuit
It cracking can not be dispersed in plate.The time that heat disperses is related with the size of wind speed.In 10m/s or more, instrument measures wind speed
Wind-warm syndrome it is identical as reality.When wind speed is less than 10m/s, the wind-warm syndrome that instrument measures can be higher than actual value, influence the precision of instrument.Meter
Calculation machine 343, come the cooling curve of approximate temperature, and joined Y=AX+B, Y=(1-a) X+a*Y public affairs using the one negative power of z
Formula is integrated by experiment, has obtained new compensated curve, and compensated curve is added to the heat pair generated when circuit operation
The influence of wind speed temperature improves the precision of instrument.
The utility model is automatically adjusted survey air port 12 using direction inductor 121, makes to survey air port 12 and wind direction is flat
Row setting, then wind speed is measured by the real-time detection of temperature sensor 112 by platinum resistance thermometer sensor, 113 and temperature-sensing element (device) 114
With the numerical value of temperature；When wind speed is greater than 10m/s or more, D/A converter 332 exports the adjusting electric current of positive value and adjusts electricity
Pressure, makes high wind speed flow through the temperature that platinum resistance thermometer sensor, 113 and temperature-sensing element (device) 114 are taken away and compensates, and guarantees inspection in real time
Survey the accuracy of numerical value；When wind speed is less than 10m/s or less, D/A converter 332 exports reduced adjusting electric current and adjusts electricity
Pressure reduces influence of the heat generated when circuit operation to wind speed temperature, to improve the precision of instrument detection.Present apparatus volume is micro-
Type is convenient for carrying, the automatic influence for detecting wind direction and being not easily susceptible to environment parameter, strong antijamming capability, in addition, automatic controller
34 integrate Multiple factors amendment is stored and compared to measurement result, and the accuracy of the measurement of verifying ensure that for a long time
High-precision measurement.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered by the protection scope of the present invention.Therefore, the protection scope of the utility model should be with the right
It is required that protection scope based on.
Claims (7)
1. a kind of modified airspeedometer of self-heating temperature, it is characterised in that: including, the side of detection bar, detection bar is equipped with probe,
Probe is internal to be successively arranged air velocity transducer, temperature sensor, platinum resistance thermometer sensor, and temperature-sensing element (device), and the other side of detection bar is set
There is survey air port, surveys air port and be equipped with direction inductor, the lower part of detection bar is successively arranged turntable and shell, and turntable will test bar and shell
Body connection, detection bar rotate on turntable, and servo motor is equipped on the right side of turntable, and servo motor and direction inductor are electrically connected,
Enclosure interior is respectively equipped with air velocity transducer measuring circuit, temperature sensor measurement circuit, platinum film probe measurement circuit and automatic
Controller, air velocity transducer measuring circuit are equipped with A/D converter, and temperature sensor measurement circuit is converted equipped with the 2nd A/D
Device, platinum film probe measurement circuit on one side are equipped with single-chip microcomputer signal processing unit, the other end of platinum film probe measurement circuit be equipped with D/
A converter, automatic controller include storage module and wireless communication module.
2. the modified airspeedometer of a kind of self-heating temperature according to claim 1, it is characterised in that: the air velocity transducer
It is electrically connected with air velocity transducer measuring circuit and A/D converter, temperature sensor and temperature sensor measurement circuit and second
A/D converter is electrically connected, and air velocity transducer measuring circuit and temperature sensor measurement circuit are electric with platinum film probe measurement respectively
Road is electrically connected, and A/D converter and the second A/D converter are electrically connected with D/A converter respectively, and platinum resistance thermometer sensor, and temperature are quick
Sensing unit and platinum film probe measurement circuit are electrically connected, and automatic controller is quick by D/A converter and platinum resistance thermometer sensor, and temperature
Sensing unit is electrically connected.
3. the modified airspeedometer of a kind of self-heating temperature according to claim 1, it is characterised in that: D/A conversion
Device output adjusts electric current and adjusts voltage.
4. the modified airspeedometer of a kind of self-heating temperature according to claim 1, it is characterised in that: the platinum resistance thermometer sensor,
Temperature is 125 DEG C higher than the temperature of tested gas.
5. the modified airspeedometer of a kind of self-heating temperature according to claim 1, it is characterised in that: the platinum resistance thermometer sensor, and
Greater than 10m/s, the above are adjust electric current and adjust voltage positive value increase in wind speed for temperature-sensing element (device).
6. the modified airspeedometer of a kind of self-heating temperature according to claim 1, it is characterised in that: the platinum resistance thermometer sensor, and
Temperature-sensing element (device) is less than 10m/s the following are adjusting electric current in wind speed and adjusts the reduction of voltage negative value.
7. the modified airspeedometer of a kind of self-heating temperature according to claim 1, it is characterised in that: the shape of the probe
For acute angle tail shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822163898.0U CN209117713U (en) | 2018-12-24 | 2018-12-24 | A kind of modified airspeedometer of self-heating temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822163898.0U CN209117713U (en) | 2018-12-24 | 2018-12-24 | A kind of modified airspeedometer of self-heating temperature |
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| Publication Number | Publication Date |
|---|---|
| CN209117713U true CN209117713U (en) | 2019-07-16 |
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ID=67208481
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822163898.0U Active CN209117713U (en) | 2018-12-24 | 2018-12-24 | A kind of modified airspeedometer of self-heating temperature |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112781649A (en) * | 2020-12-25 | 2021-05-11 | 海尔数字科技(无锡)有限公司 | Temperature and humidity measuring device based on NB wireless transmission |
| CN115574982A (en) * | 2022-11-21 | 2023-01-06 | 中国空气动力研究与发展中心高速空气动力研究所 | Temperature-sensitive paint calibration device and calibration method |
-
2018
- 2018-12-24 CN CN201822163898.0U patent/CN209117713U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112781649A (en) * | 2020-12-25 | 2021-05-11 | 海尔数字科技(无锡)有限公司 | Temperature and humidity measuring device based on NB wireless transmission |
| CN115574982A (en) * | 2022-11-21 | 2023-01-06 | 中国空气动力研究与发展中心高速空气动力研究所 | Temperature-sensitive paint calibration device and calibration method |
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