CN107167627A - A kind of synchronous difference air velocity transducer - Google Patents
A kind of synchronous difference air velocity transducer Download PDFInfo
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- CN107167627A CN107167627A CN201710586495.4A CN201710586495A CN107167627A CN 107167627 A CN107167627 A CN 107167627A CN 201710586495 A CN201710586495 A CN 201710586495A CN 107167627 A CN107167627 A CN 107167627A
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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
- G01P5/24—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave
- G01P5/245—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave by measuring transit time of acoustical waves
Abstract
The invention discloses a kind of synchronous difference air velocity transducer, including transducer group, module, signal processing module, high-speed synchronous sampling module, synchronous difference control module and communication interface are recommended；The input interface of transducer group is connected with recommending module first end, the first end of signal processing module is connected with the output interface of transducer group, the first end of high-speed synchronous sampling module is connected with the second end of signal processing module, the first end of synchronous difference control module is connected with the 3rd end of signal processing module, and the second end is connected with the second end of high-speed synchronous sampling module；The second end of module is recommended with the 3rd end of control module to be connected；Communication interface is connected with the 4th end of control module；Synchronous difference control module is sent to recommending module synchronization difference, synchronous difference is received and controlled；The synchronous difference air velocity transducer that the present invention is provided can improve the measuring wind speed degree of accuracy and measurement range, it is adaptable to the measuring wind speed under adverse circumstances, particularly suitable for the application under storm, sand and storm, snowstorm environment.
Description
Technical field
The invention belongs to microclimate monitoring technical field, more particularly, to a kind of synchronous difference air velocity transducer.
Background technology
In terms of measuring wind speed, conventional air monitoring sensor main will have vane type, differential, hot-bulb formula and surpass at present
Sound wave type air velocity transducer.Differential and hot-bulb formula air velocity transducer is normally applied out of doors using ambient influnence is highly prone to
Indoors.Impeller type transmitter long-play is easy to wear and measures inaccurate under frost severe weather conditions.Ultrasonic wave
The operation principle of formula air velocity transducer mainly using one hair one receive, in bad weather conditions sound wave on propagation path easily by
Interference to rainwater or sand and dust forms decay, reflection, influences the accuracy of measurement result.
The content of the invention
For the disadvantages described above or Improvement requirement of prior art, the invention provides a kind of synchronous difference air velocity transducer,
The problem of measurement result accuracy is low under extreme environment its object is to solving existing air velocity transducer.
To achieve the above object, according to one aspect of the present invention there is provided a kind of synchronous difference air velocity transducer, including
Transducer group, recommends module, signal processing module, high-speed synchronous sampling module, synchronous difference control module and communication interface；
Wherein, the input interface of transducer group is connected with recommending module first end, and the first end of signal processing module is with changing
The output interface of energy device group is connected, and the first end of high-speed synchronous sampling module is connected with the second end of signal processing module, synchronous
The first end of difference control module is connected with the 3rd end of signal processing module, synchronous difference control control module the second end with
Second end of high-speed synchronous sampling module is connected；The second end of module is recommended with the 3rd end of control module to be connected；Communication interface
It is connected with the 4th end of control module；
Wherein, recommending module is used to generate pulse control signal under the control of synchronous difference control module；Transducer group
For being sent in the presence of the pulse control signal of module output is recommended with receiving measurement sound wave；
Signal processing module is used to be filtered the pulse voltage signal that transducer group is exported amplification and amplitude limiting processing；
High-speed synchronous sampling module is used for the impulse level signal for gathering signal processing module output；
Synchronous difference control module is used for voltage magnitude data signal and the signal exported according to high-speed synchronous sampling module
The impulse level analog signal of processing module output carries out parallel interrupt detection, and is generated and be used for according to the signal time difference detected
The level drive signal of module is recommended in control；And according to a variety of multiple signals time differences, calculation of wind speed value；Communication interface is used for wind
Fast value result of calculation is sent to terminal device.
It is preferred that, above-mentioned synchronous difference air velocity transducer, its transducer group include 3 big field angle ultrasonic transducer with
1 non-directional cylindricality ultrasonic transducer；Wherein, 3 big field angle ultrasonic transducer is respectively arranged on a plane equilateral three
3 angular apexes, 1 non-directional cylindricality ultrasonic transducer is located at the center position of above-mentioned equilateral triangle.
It is preferred that, above-mentioned synchronous difference air velocity transducer, the field angle of big field angle ultrasonic transducer is all higher than 120 °,
The field angle of wherein any one big field angle ultrasonic transducer can cover other two big field angle ultrasonic transducer；
Non-directional cylindricality ultrasonic transducer can be with the sound wave of the big field angle ultrasonic transducer transmitting of 360 ° of transmitting-receivings.
It is preferred that, above-mentioned synchronous difference air velocity transducer, signal processing module includes 4 groups of signal processing circuits arranged side by side,
Recommending module includes 4 groups of D class push-pull circuits arranged side by side；The input of 4 ultrasonic transducers of transducer group passes through transducer
The input interface of group is connected correspondingly with 4 groups of D classes push-pull circuits, the output end of 4 ultrasonic transducers of transducer group
It is connected correspondingly with 4 groups of signal processing circuits respectively by the output interface of transducer group；
Ultrasonic transducer included by quantity, the quantity of D class push-pull circuits and the transducer group of signal processing circuit
Quantity matches；Wherein, the ultrasonic transducer included by transducer group includes big field angle ultrasonic transducer and directionless
Property cylindricality ultrasonic transducer.
It is preferred that, above-mentioned synchronous difference air velocity transducer, its synchronous difference control module is analogized each group D for recommending module
Draw circuit synchronization difference transmission level drive signal, the output signal and high-speed synchronous sampling module to signal processing module it is defeated
Go out the reception of signal synchronous difference；
Wherein, synchronous difference, which is sent, refers to that synchronization modulates 2 groups of D classes and recommends the big field angle that circuit drives are each connected
Ultrasonic transducer and non-directional cylindricality ultrasonic transducer, by 1 big field angle ultrasonic wave transducer for being in diverse location
Device sends measurement sound wave with non-directional cylindricality ultrasonic transducer synchronization；
Wherein, synchronous difference, which is received, refers to that synchronous difference control module receives the collection of high-speed synchronous sampling module synchronization
The voltage signal of multiplex ultrasonic transducer conversion and the impulse level signal of multigroup signal processing circuit output；Difference connects
Receive and refer to by 3 big field angle ultrasonic transducers and non-directional cylindricality ultrasonic transducer in diverse location in the same time
Receive measurement sound wave, the 3 therein big field angle ultrasonic transducers for the apex in plane equilateral triangle, 1
For the non-directional cylindricality ultrasonic transducer of the center position in above-mentioned equilateral triangle.
It is preferred that, above-mentioned synchronous difference air velocity transducer, its signal processing circuit includes amplitude limiter circuit, the fortune being sequentially connected
Put amplifying circuit, amplifier filter circuit, logafier and level comparison circuit；
Wherein, amplitude limiter circuit is used for the pulse voltage signal of input by carrying out amplitude limit after Capacitor apart DC level,
It is using the dead zone voltage of silicon diode that input voltage is spacing to preset value；
Amplifier amplifying circuit is used to amplify pulse voltage signal；
Amplifier filter circuit is used for pulse voltage signal and carries out active power filtering processing；
Logafier is used to enter the signal received line level amplitude limit compression processing；Its output signal is divided into two-way,
High-speed synchronous sampling module is sent to all the way, and another road is sent to level comparison circuit；
Level comparison circuit is used to carry out level edge detection to the signal received, and generation is with input signal with duration
High level pulse.
It is preferred that, above-mentioned synchronous difference air velocity transducer, by synchronous difference control module to high-speed synchronous sampling module
Control on Communication is carried out, and the level drive signal that module is recommended for control is generated according to the signal time difference detected；And according to
A variety of multiple signals time differences, calculation of wind speed value；
In general, by the contemplated above technical scheme of the present invention compared with prior art, it can obtain down and show
Beneficial effect：
(1) there is the synchronous difference air velocity transducer that the present invention is provided, its transducer group multichannel to send and receive measurement sound
The propagation path of ripple, and synchronized sampling and synchronized transmission circuit are constituted by hardware synchronization difference control module circuit；It is hard based on its
Part structure, surveying 1 air speed value needs 3 groups of measurement data；1 group of measurement data correspondence 8 air speed value of generation, this 8 air speed values are by 5
Sound-wave path is generated, if wherein any one transmission path is influenceed acoustic transit time by foreign object, in this of the present invention
In design, it can confirm to find by the contrast of other path values；It is achieved in determining that measurement acoustic signals are propagating road on source
Difference on footpath, it is possible to the accurate acoustic signals for determining abnormal interference；
(2) reflection, refraction can be produced because ultrasonic wave runs into rainwater, sandstorm, ice and snow in communication process, diffraction, dissipated
The phenomenon such as penetrate, thus cause ultrasonic transducer receive conversion voltage signal is weak, signal disturbing pulse or can produce mixed
It is folded；The synchronous difference air velocity transducer that the present invention is provided, because retrievable sound-wave path data sample quantity is more, sample
As a result repeat, can contrast, can derive, therefore the credible result degree height of collection is measured under extreme environment, measurement result is accurate
True property is higher.
Brief description of the drawings
Fig. 1 is the principle schematic of synchronous difference air velocity transducer provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram of transducer group provided in an embodiment of the present invention；
Fig. 3 is that the D classes of synchronous difference air velocity transducer provided in an embodiment of the present invention recommend circuit diagram；
Fig. 4 is the signal processing circuit schematic diagram of synchronous difference air velocity transducer provided in an embodiment of the present invention；
Fig. 5 is the control of synchronous difference air velocity transducer provided in an embodiment of the present invention with receiving logical schematic.
In all of the figs, identical reference is used for representing identical element or structure, wherein：
The big field angle ultrasonic transducers of 1- first, the second largest field angle ultrasonic transducers of 2-, the third-largest field angles of 3-
The non-directional cylindricality ultrasonic transducer of ultrasonic transducer, 4-, 5- synchronous differences control module, 6- recommend module, 7- signals
Processing module, 8- high-speed synchronous sampling module, 17- ultrasonic transducers.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in each embodiment of invention described below
Not constituting conflict each other can just be mutually combined.
The synchronous difference air velocity transducer that embodiment is provided, its system as shown in figure 1, including transducer group, recommend module,
Signal processing module, high-speed synchronous sampling module, synchronous difference control module and RS485 interfaces；
Wherein, the input interface of transducer group is connected with recommending module first end, and the first end of signal processing module is with changing
The output interface of energy device group is connected, and the first end of high-speed synchronous sampling module is connected with the second end of signal processing module, synchronous
The first end of difference control module is connected with the 3rd end of signal processing module, synchronous difference control control module the second end with
Second end of high-speed synchronous sampling module is connected；The second end of module is recommended with the 3rd end of control module to be connected；RS485 interfaces
It is connected with the 4th end of control module.
In the present embodiment, transducer group includes 4 ultrasonic transducers, is 3 big field angle ultrasonic transducer respectively
With 1 non-directional cylindricality ultrasonic transducer；Signal processing module includes 4 groups of signal processing circuits arranged side by side, recommends module
Including 4 groups of D class push-pull circuits arranged side by side；The input that the input of 4 ultrasonic transducers of transducer group passes through transducer group
Interface is connected correspondingly with 4 groups of D classes push-pull circuits, and the output end of 4 ultrasonic transducers of transducer group passes through transducing
The output interface of device group is connected correspondingly with 4 groups of signal processing circuits respectively；Synchronous difference control module is real using FPGA
It is existing.
Fig. 2 is the schematic diagram of transducer group provided in an embodiment of the present invention；In transducer group, the first big field angle ultrasonic wave
Transducer 1, second largest field angle ultrasonic transducer 2, that the third-largest field angle ultrasonic transducer 3 is respectively arranged on a plane is equilateral
3 apexes of triangle；Non-directional cylindricality ultrasonic transducer 4 is located at the center position of above-mentioned equilateral triangle.
The field angle of 3 big field angle ultrasonic transducer is all higher than 120 °, wherein any one big field angle ultrasonic wave
The field angle of transducer can cover other two big field angle ultrasonic transducer；Example is as shown in Figure 2：First big wave beam
The coverage for the sound wave that angle ultrasonic transducer 1 is sent can exceed the scope of the length of side 9,10；Non-directional cylindricality ultrasonic waves
Energy device 4 can be with the sound wave of 360 ° of transmitting-receivings, 3 big field angle ultrasonic transducers transmitting.
3 big field angle ultrasonic transducer and 1 non-directional cylindricality ultrasonic transducer included by transducer group
All possesses the function of sending and receiving ultrasonic wave；For example：First big field angle ultrasonic transducer 1 and non-directional cylindricality ultrasound
Wave transducer 4 sends measurement sound wave, and ultrasonic transducer 1,2,3,4 receives measurement sound wave；During work, primary air velocity is often measured,
By the first big field angle ultrasonic transducer 1, second largest field angle ultrasonic transducer 2, the third-largest field angle ultrasonic wave transducer
One in device 3 in turn with the non-directional synchronized transmission of cylindricality ultrasonic transducer 4；Transmitting-receiving 6 acquisitions, 24 groups of data.
3 big field angle ultrasonic transducer and 1 non-directional cylindricality ultrasonic transducer are analogized in the D each connected
Lower send of pulse control signal effect for drawing circuit measures sound wave, and receives transmitted measurement sound wave；Ultrasonic transducer group
It is converted into voltage signal and is output to the signal processing circuit each connected；The voltage signal that signal processing circuit docking is sent to is carried out
Amplify filtering process, output signal is divided into two, wherein being output to synchronous difference control module all the way carries out parallel interrupt detection,
Another road is output to high-speed synchronous sampling module and carries out parallel voltage detecting；Synchronous difference control module generates D class push-pull circuits
Control signal, synchronous difference control module calculates according to the signal transacting of reception and obtains air speed value, is sent out by RS485 interfaces
Go.
In the present embodiment, the control mode of D class push-pull circuit of the synchronous difference control module to recommending module is synchronous
Difference is sent, and synchronous difference is received；Modulated 4 groups of complementary signals are output to D class push-pull circuits；Synchronous difference is sent：
Synchronously refer to that synchronization modulates 2 road D classes and recommends the big field angle ultrasonic transducer or directionless that circuit drives are each connected
Property cylindricality ultrasonic transducer；Difference send refer to by 1 big field angle ultrasonic transducer in diverse location with not properly
Tropism cylindricality ultrasonic transducer synchronization sends measurement sound wave.
Synchronous difference is received：Synchronization therein refers to that the control of synchronous difference control module receives high-speed synchronous sampling
The voltage signal of module synchronization collection multiplex ultrasonic conversion, differential received refers to by 4 big ripples for being in diverse location
Beam angle ultrasonic transducer and non-directional cylindricality ultrasonic transducer receive measurement sound wave in the same time, 3 therein be in
The big field angle ultrasonic transducer of the apex of plane equilateral triangle, 1 is the centre bit in above-mentioned equilateral triangle
Put the non-directional cylindricality ultrasonic transducer at place.
In the present embodiment, D classes push-pull circuit is as shown in figure 3, including first resistor R1, second resistance R2, the first triode
Q1, the second triode Q2, transformer T1, the first electric capacity C19, ultrasonic transducer 17, high-frequency inductor L1 and the second electric capacity C2；
The complementary Transistor-Transistor Logic level V1 of synchronous difference control module output height, V2 to D classes recommend circuit level V1 through the one or three
The amplification of pole pipe Q2 level, level V2 amplify through the second triode Q2, the level driving transformer after amplification, transformer output voltage
To electric capacity C19, electric capacity C19 connections ultrasonic transducer 17；It is made up of impedance matching circuit to improve hair high-frequency inductor L1 and C2
Penetrate power factor；Match circuit is connected in parallel on ultrasonic transducer two ends, positive pole and the signal processing circuit phase of ultrasonic transducer
Even.
In the present embodiment, signal processing circuit as shown in figure 4, including the amplitude limiter circuit being sequentially connected, amplifier amplifying circuit,
Amplifier filter circuit, logafier and level comparison circuit；In amplitude limiter circuit, limit is connected to by Capacitor apart DC level
Leakage resistance is to diode, and diode arrives preset value 0.7V by input voltage is spacing；Amplifier amplifying circuit is used to amplify signal, puts
Big signal is sent to logafier by amplifier filter circuit, and logafier is used to contract signal pressure output, and its is defeated
Go out signal and be divided into two-way, high-speed synchronous sampling module is sent to all the way, another road is sent to level comparison circuit.The present embodiment
In, high-speed synchronous sampling module carries out Control on Communication by synchronous difference control module；The level of signal processing circuit is more electric
The output signal on road is sent to synchronous difference control module and carries out parallel interrupt detection.
It is that one group of measuring wind speed control of synchronous difference control module completion in embodiment is shown with receiving logic shown in Fig. 5
It is intended to；In the present embodiment, wind speed is obtained by following formula：
Vw=D/2 × (1/CT1-1/CT2)；
Wherein, Vw refers to wind speed, and D refers to measure sound-wave path distance, CT1 refers to that measurement sound wave is transmitted with the wind when
Between, CT2 refers to measure the sound wave contrary wind delivery time.
Ideally, sound wave delivery time CT1=T1+T2+T3/2 with the wind is measured；
T3=T1+T2, T1=T4, T3=T2+T4；
In 1 group of measurement：
T1 refers to 3 big the 1st reception sound wave time of field angle ultrasonic transducer；
T2 refers to 2 big field angle ultrasonic transducer from the 1st reception time to the 2nd reception sound wave time；
T3 refers to the 2nd reception sound wave time of the big field angle ultrasonic transducer of 2 big field angle ultrasonic wave transducer；
T4 refers to that 1 central point ultrasonic transducer receives the sound wave time；
Because wind speed transmission path has direction to have size, acoustic transit time and direction can be influenceed；Bad weather ring
In border measure sound-wave path by decay, reflection influenceed, in measurement by improve measurement the frequency, measurement orientation, plus
Enter the means such as angle calcu-lation to compensate.In measurement, 3 big field angle ultrasonic transducer 1,2,3 in turn with non-directional cylindricality
The synchronous bidirectional of ultrasonic transducer 4 is received and dispatched, and is sent using synchronous difference and synchronous difference receives and obtains 24 data.According to this 24
Individual data measuring and calculating obtains wind speed angle, adds angle-data inverse ∠ T1, ∠ T2, ∠ T3 propagation time, you can calculate wind speed
Value；In measuring and calculating, if exception occurs in any one in above-mentioned 24 numerical value, it can reversely be derived, so in sound
The random interfering signal produced in propagation path does not interfere with the degree of accuracy of final calculation result.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, it is not used to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the invention etc., it all should include
Within protection scope of the present invention.
Claims (6)
1. a kind of synchronous difference air velocity transducer, it is characterised in that including transducer group, recommends module, signal processing module is high
Fast synchronized sampling module, synchronous difference control module and communication interface；
The input interface of the transducer group is connected with recommending module first end, the first end and transducing of the signal processing module
The output interface of device group is connected, and the first end of the high-speed synchronous sampling module is connected with the second end of signal processing module, institute
State the first end of synchronous difference control module with the 3rd end of signal processing module to be connected, the second end and high-speed synchronous sampling module
The second end be connected；Second end for recommending module is connected with the 3rd end of control module；The communication interface and control mould
4th end of block is connected；
The module of recommending is used to generate pulse control signal under the control of synchronous difference control module；The transducer group is used
In being sent in the presence of the pulse control signal sound wave, voltage pulse output signal are measured with receiving；The signal transacting
Module is used to be filtered the pulse voltage signal amplification and amplitude limiting processing；The high-speed synchronous sampling module is used to gather
The impulse level signal of signal processing module output；The synchronous difference control module is used for defeated according to high-speed synchronous sampling module
The impulse level signal of voltage magnitude data signal and the signal processing module output gone out carries out parallel interrupt detection, and according to inspection
The signal time difference measured generates the level drive signal that module is recommended for control, and according to multiple signals time difference calculation of wind speed
Value；The communication interface is used to air speed value being sent to terminal device.
2. synchronous difference air velocity transducer as claimed in claim 1, it is characterised in that the transducer group includes 3 big ripple
Beam angle ultrasonic transducer and 1 non-directional cylindricality ultrasonic transducer；Wherein, 3 big field angle ultrasonic transducer point
Not She Yu a plane equilateral triangle 3 apexes, the non-directional cylindricality ultrasonic transducer be located at described equilateral three
Angular center position.
3. synchronous difference air velocity transducer as claimed in claim 2, it is characterised in that each big field angle ultrasonic waves
The field angle of energy device is all higher than 120 °, and the field angle of wherein any one big field angle ultrasonic transducer can cover other two
Individual big field angle ultrasonic transducer；The non-directional cylindricality ultrasonic transducer can be with 360 ° of big field angle ultrasonic waves of transmitting-receiving
The sound wave of transducer transmitting.
4. synchronous difference air velocity transducer as claimed in claim 2 or claim 3, it is characterised in that the signal processing module includes 4
Group signal processing circuit arranged side by side, recommending module includes 4 groups of D class push-pull circuits arranged side by side；4 ultrasonic wave transducers of transducer group
The input of device is connected correspondingly by the input interface of transducer group with 4 groups of D classes push-pull circuits, 4 of transducer group
The output end of ultrasonic transducer by the output interface of transducer group respectively with 4 groups of signal processing circuits phase correspondingly
Even.
5. synchronous difference air velocity transducer as claimed in claim 4, it is characterised in that the synchronous difference control module is to pushing away
The each group D classes for drawing module recommend circuit synchronization difference transmission level drive signal, to the output signal and height of signal processing module
The output signal synchronous difference of fast synchronized sampling module is received；
The synchronous difference, which is sent, refers to that synchronization modulates 2 groups of D classes and recommends the big field angle ultrasound that circuit drives are each connected
Wave transducer and non-directional cylindricality ultrasonic transducer, by 1 big field angle ultrasonic transducer in diverse location with
Non-directional cylindricality ultrasonic transducer synchronization sends measurement sound wave；
The synchronous difference, which is received, refers to that synchronous difference control module receives high-speed synchronous sampling module synchronization collection multichannel
The voltage signal of ultrasonic transducer conversion and the impulse level signal of multigroup signal processing circuit output；Differential received is
Refer to and received in the same time with non-directional cylindricality ultrasonic transducer by 3 big field angle ultrasonic transducers in diverse location
Measurement sound wave, the 3 therein big field angle ultrasonic transducers for the apex in plane equilateral triangle, 1 is place
In the non-directional cylindricality ultrasonic transducer of the center position of the equilateral triangle.
6. synchronous difference air velocity transducer as claimed in claim 1 or 2, it is characterised in that the signal processing circuit includes
Amplitude limiter circuit, amplifier amplifying circuit, amplifier filter circuit, logafier and the level comparison circuit being sequentially connected；
The amplitude limiter circuit is used for the pulse voltage signal of input by carrying out amplitude limit after Capacitor apart DC level, utilizes silicon
The dead zone voltage of diode is spacing to preset value by input voltage；
The amplifier amplifying circuit is used to amplify pulse voltage signal；The amplifier filter circuit is used for the pulse electricity to amplification
Signal is pressed to carry out active power filtering processing；
The logafier is used to enter the signal received line level amplitude limit compression processing；Its output signal is divided into two-way,
High-speed synchronous sampling module is sent to all the way, and another road is sent to level comparison circuit；The level comparison circuit is used to dock
The signal received carries out level edge detection, generation and high level pulse of the input signal with duration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710586495.4A CN107167627B (en) | 2017-07-18 | 2017-07-18 | synchronous differential wind speed sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710586495.4A CN107167627B (en) | 2017-07-18 | 2017-07-18 | synchronous differential wind speed sensor |
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| Publication Number | Publication Date |
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| CN107167627A true CN107167627A (en) | 2017-09-15 |
| CN107167627B CN107167627B (en) | 2019-12-13 |
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| CN201710586495.4A Active CN107167627B (en) | 2017-07-18 | 2017-07-18 | synchronous differential wind speed sensor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108646518A (en) * | 2018-05-07 | 2018-10-12 | 北京弘浩千瑞科技有限公司 | A kind of intelligence wire-mesh cover position mask-making technology |
| CN108768340A (en) * | 2018-04-25 | 2018-11-06 | 深圳臻迪信息技术有限公司 | L C frequency-selective filtering sonar receiving circuit |
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| CN102288781A (en) * | 2011-06-28 | 2011-12-21 | 北京东方迪码科技有限公司 | Reflective ultrasonic anemoscope and measuring method thereof |
| CN103995146A (en) * | 2014-04-30 | 2014-08-20 | 北京爱信德科技有限公司 | Ultrasonic wind measuring device and ultrasonic wind measuring method |
| CN104569485A (en) * | 2015-01-27 | 2015-04-29 | 长春建筑学院 | Three-dimensional ultrasonic wind speed and wind direction detection system and measurement method |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4890488A (en) * | 1988-03-03 | 1990-01-02 | Simecsol | Ultrasonic anemometer |
| CN102288781A (en) * | 2011-06-28 | 2011-12-21 | 北京东方迪码科技有限公司 | Reflective ultrasonic anemoscope and measuring method thereof |
| CN103995146A (en) * | 2014-04-30 | 2014-08-20 | 北京爱信德科技有限公司 | Ultrasonic wind measuring device and ultrasonic wind measuring method |
| CN104569485A (en) * | 2015-01-27 | 2015-04-29 | 长春建筑学院 | Three-dimensional ultrasonic wind speed and wind direction detection system and measurement method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108768340A (en) * | 2018-04-25 | 2018-11-06 | 深圳臻迪信息技术有限公司 | L C frequency-selective filtering sonar receiving circuit |
| CN108768340B (en) * | 2018-04-25 | 2022-05-13 | 深圳臻迪信息技术有限公司 | LC frequency-selecting filtering sonar receiving circuit |
| CN108646518A (en) * | 2018-05-07 | 2018-10-12 | 北京弘浩千瑞科技有限公司 | A kind of intelligence wire-mesh cover position mask-making technology |
| CN108646518B (en) * | 2018-05-07 | 2020-11-17 | 北京弘浩千瑞科技有限公司 | Intelligent silk screen nesting plate making process |
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| CN107167627B (en) | 2019-12-13 |
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Denomination of invention: Synchronous Differential wind speed sensor Effective date of registration: 20220331 Granted publication date: 20191213 Pledgee: Wuhan area branch of Hubei pilot free trade zone of Bank of China Ltd. Pledgor: WUHAN SANJIANG CLP TECHNOLOGY Co.,Ltd. Registration number: Y2022420000094 |