CN110174461A - A kind of multiband ultrasonic wave turbid liquid concentration and droplet measurement system - Google Patents
A kind of multiband ultrasonic wave turbid liquid concentration and droplet measurement system Download PDFInfo
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- 238000005259 measurement Methods 0.000 title claims abstract description 23
- 239000007788 liquid Substances 0.000 title claims abstract description 21
- 239000011521 glass Substances 0.000 claims abstract description 25
- 238000012545 processing Methods 0.000 claims abstract description 25
- 238000003760 magnetic stirring Methods 0.000 claims abstract description 21
- 239000000725 suspension Substances 0.000 claims abstract description 11
- 238000004891 communication Methods 0.000 claims abstract description 8
- 239000000523 sample Substances 0.000 claims description 8
- 230000003321 amplification Effects 0.000 claims description 5
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 5
- UXOLDCOJRAMLTQ-UHFFFAOYSA-N ethyl 2-chloro-2-hydroxyiminoacetate Chemical compound CCOC(=O)C(Cl)=NO UXOLDCOJRAMLTQ-UHFFFAOYSA-N 0.000 claims description 3
- 230000005669 field effect Effects 0.000 claims description 3
- 238000001228 spectrum Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 9
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- 230000004927 fusion Effects 0.000 abstract description 3
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- 239000002817 coal dust Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
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- 230000005514 two-phase flow Effects 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
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- 238000013332 literature search Methods 0.000 description 1
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- 230000001537 neural effect Effects 0.000 description 1
- 238000003062 neural network model Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/02—Analysing fluids
- G01N29/024—Analysing fluids by measuring propagation velocity or propagation time of acoustic waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/02—Analysing fluids
- G01N29/032—Analysing fluids by measuring attenuation of acoustic waves
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Abstract
The present invention provides a kind of multiband ultrasonic wave turbid liquid concentration and droplet measurement system, comprising: ultrasonic wave transmitting module, Echo Processing module and high speed acquisition module, PCI communication module, magnetic stirring apparatus, PC host computer and data processing module；Energy converter is fixed in the glass tube on the fixed bracket of energy converter, microcontroller controls the ultrasonic wave of transducer drive module transmitting multichannel different frequency, detect the suspension stirred by magnetic stirring apparatus, the high speed acquisition module that ultrasonic echo signal is controlled after the Echo Processing module by FPGA acquires, the signal of acquisition is sent to PC host computer by PCI communication module, data processing module analyzes concentration and partial size, obtains testing result.The present invention utilizes the detection system of turbid liquid concentration and partial size, the detection of concentration and partial size is rapidly completed, by the magnetic stirring apparatus of low interference, the external interference to acoustic attenuation parameter in detection process is reduced, and realize and accurately measure under the coordination of corresponding multi-parameter fusion scheduling algorithm.
Description
Technical field
The present invention relates to concentration and grain diameter measurement equipment technical field, specifically, more particularly to a kind of multiband ultrasound
Wave turbid liquid concentration and droplet measurement system.
Background technique
In industrial processes, the detection of solid-liquid two-phase flow parameter such as concentration or partial size is to some production process efficiency and yield
Raising it is most important.The method of detection is roughly divided into supercritical ultrasonics technology, densimetry and spectroscopic methodology, and densimetry and spectroscopic methodology are limited to
Environmental quality and computation complexity cannot be used widely, and supercritical ultrasonics technology is due to anti-interference strong, the advantages quilt such as applicability is good
It is widely used.Supercritical ultrasonics technology detection suspension is to emit ultrasonic wave to testing liquid, is determined by the acoustic attenuation parameter of echo
Parameter under concentration, various concentration and partial size is different, but during atual detection, due to the error meeting of hardware circuit
Lead to acoustic attenuation Parameters variation, influence detection accuracy, uses concentration and sound attenuation models under single-frequency probe, also will appear
Situation considers the situation incomplete, result is inaccurate, while in test, sinkage, acoustic attenuation parameter can occur for suspension
It is remarkably decreased, will necessarily making concentration and droplet measurement, there are errors, excessive so as to cause test result error.
On the other hand, many suspension detection methods are detected to fixed solid-liquid two-phase flow ingredient, can not be to big
Part suspension is estimated, therefore how to accomplish that real-time, accuracy, generality become turbid liquid concentration and droplet measurement
A problem.Through the literature search of existing technologies, China Patent Publication No. CN103792169A, publication date be
2014.05.14, patent name is a kind of detection method of coal dust turbid liquid concentration, which quickly measures the concentration of coal dust, no
Foot place is can not be huge by industrial environmental influence, and it is single to detect type.
Summary of the invention
According to technical problem set forth above, and provide a kind of multiband ultrasonic wave turbid liquid concentration and droplet measurement system
System.The present invention mainly utilizes the detection system of turbid liquid concentration and partial size, and the detection of concentration and partial size is rapidly completed, passes through simultaneously
A kind of magnetic stirring apparatus of low interference reduces the external interference to acoustic attenuation parameter in detection process, and in corresponding more ginsengs
It realizes and accurately measures under the coordination of number fusion scheduling algorithm.
The technological means that the present invention uses is as follows:
A kind of multiband ultrasonic wave turbid liquid concentration and droplet measurement system, comprising: ultrasonic wave transmitting module, Echo Processing
Module and high speed acquisition module, PCI communication module, magnetic stirring apparatus, PC host computer and data processing module；Energy converter is solid
It is scheduled in the glass tube on the fixed bracket of energy converter, microcontroller controls the super of transducer drive module transmitting multichannel different frequency
Sound wave detects the suspension stirred by the magnetic stirring apparatus, ultrasonic echo signal quilt after the Echo Processing module
The high speed acquisition module acquisition of FPGA control, the signal of acquisition are sent to PC host computer by PCI communication module, at the data
Reason module analyzes concentration and partial size, obtains concentration and droplet measurement result.
Further, the magnetic stirring apparatus includes: magnetic stirring apparatus, the contactless sink of Multi probe；
The magnetic stirring apparatus is mainly made of DC speed-reducing, external magnet and magnetic stirrer；
The contactless sink of Multi probe is mainly by upper organic glass sink, lower organic glass sink and organic glass circle
Pipe composition；The outer wall of the upper organic glass sink pastes multiple organic glass round tubes, and the lower organic glass bottom of gullet is put
The DC speed-reducing is set, the external magnet is mounted on the motor shaft of DC speed-reducing, the magnetic stirrer
It is arranged in upper organic glass bottom of gullet, and is located at right above the DC speed-reducing.
Further, the Echo Processing module includes amplitude limiter circuit, pre-amplification circuit, second order bandwidth-limited circuit；
The high speed acquisition module includes AD high speed acquisition module, data cache module；The amplitude limiter circuit, preposition amplification electricity
Road, second order bandwidth-limited circuit, AD high speed acquisition module and data cache module are sequentially connected.
Further, the data processing module uses the fused curved surface of three-dimensional parameter of the velocity of sound, acoustic attenuation and concentration
It fits function to detect concentration, function expression is as follows:
S (V, A)=p1+p2V+p3T+p4V2+p5VT+p6T2；
In formula, p1、p2…p6The parameter of solution respectively to be fitted, V and T are respectively speed and acoustic attenuation；
The data processing module uses the radial direction based on acoustic attenuation spectrum proposed based on ECHA " long-wavelength region " simplified model
Base neural net granularity prediction model and LeNet-5 granularity prediction model based on sonograph detect partial size.
Further, the energy converter is respectively the transmitting-receiving integrated insertion that centre frequency is 1MHZ, 2.5MHZ and 5MHZ
Formula underwater acoustic transducer.
Further, the microprocessor of the ultrasonic wave transmitting module is STM32F103 chip, generates pulse, described to change
The high-voltage pulse of energy device drive module driving field effect transistor generation -350V, drives energy converter via impedance matching.
Further, the data processing module needs to input the ultrasonic echo digital signal of different frequency.
Compared with the prior art, the invention has the following advantages that
Detection system provided by the invention is realized by improved agitating device even if particles float in suspension,
It does not hinder ultrasonic wave to propagate, makes to test external disturbance reduction in test process, while in multi-frequency multi-parameter fusion algorithm, RBF
Precise measurement is realized under the cooperation of neural network model and the LeNet-5 granularity prediction model based on sonograph.
The present invention can be widely popularized in the fields such as concentration and grain diameter measurement equipment based on the above reasons.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to do simply to introduce, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is structure of the invention figure.
Fig. 2 is magnetic stirring apparatus schematic diagram of the present invention.
Fig. 3 is present system overall schematic.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
It is only a part of the embodiment of the present invention, instead of all the embodiments.It is real to the description of at least one exemplary embodiment below
It is merely illustrative on border, never as to the present invention and its application or any restrictions used.Based on the reality in the present invention
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to
In the scope of protection of the invention.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to exemplary embodiments of the present invention.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
It is not limited the scope of the invention up to formula and numerical value.Simultaneously, it should be clear that for ease of description, each portion shown in attached drawing
The size divided not is to draw according to actual proportionate relationship.Technology known for person of ordinary skill in the relevant, side
Method and equipment may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as authorizing explanation
A part of book.In shown here and discussion all examples, appointing should be construed as merely illustratively to occurrence, and
Not by way of limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar label
Similar terms are indicated in following attached drawing with letter, therefore, once it is defined in a certain Xiang Yi attached drawing, then subsequent attached
It does not need that it is further discussed in figure.
In the description of the present invention, it is to be understood that, the noun of locality such as " front, rear, top, and bottom, left and right ", " it is laterally, vertical,
Vertically, orientation or positional relationship indicated by level " and " top, bottom " etc. is normally based on orientation or position shown in the drawings and closes
System, is merely for convenience of description of the present invention and simplification of the description, in the absence of explanation to the contrary, these nouns of locality do not indicate that
It must have a particular orientation or be constructed and operated in a specific orientation with the device or element for implying signified, therefore cannot manage
Solution is limiting the scope of the invention: the noun of locality " inside and outside " refers to inside and outside the profile relative to each component itself.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under its device or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
In addition, it should be noted that, limiting components using the words such as " first ", " second ", it is only for be convenient for
Corresponding components are distinguished, do not have Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore should not be understood as to this
The limitation of invention protection scope.
Embodiment
As shown in Figure 1, first will the present invention provides a kind of multiband ultrasonic wave turbid liquid concentration and droplet measurement system
Three road different frequency energy converters are fixed in the glass tube on the fixed bracket of energy converter, then fall into the contactless sink of Multi probe
Enter suspension to be measured, open magnetic stirring apparatus and be stirred, it is different that microcontroller controls transducer drive module transmitting multichannel
The ultrasonic wave of frequency detects the suspension stirred by magnetic stirring apparatus, ultrasonic echo signal quilt after Echo Processing module
The high speed acquisition module acquisition of FPGA control, the signal of acquisition are sent to PC host computer, data processing mould by PCI communication module
Block analyzes concentration and partial size, obtains concentration and droplet measurement result.As a preferred embodiment of the present invention, at data
Reason module needs to input the ultrasonic echo digital signal of different frequency.
As a preferred embodiment of the present invention, as shown in Fig. 2, magnetic stirring apparatus includes: magnetic stirring apparatus, Multi probe
Contactless sink；Magnetic stirring apparatus is mainly made of DC speed-reducing, external magnet and magnetic stirrer；Multi probe is non-
Contact sink is mainly made of upper organic glass sink, lower organic glass sink and organic glass round tube；Upper organic glass water
The outer wall of slot pastes multiple organic glass round tubes, and lower organic glass bottom of gullet places DC speed-reducing, and external magnet is mounted on
On the motor shaft of DC speed-reducing, magnetic stirrer is arranged in upper organic glass bottom of gullet, and is located at direct current and slows down
Right above motor.When DC speed-reducing when lower part starts turning, the stirrer of upper part is driven to be rotated by magnet,
Solution is stirred.
As a preferred embodiment of the present invention, as shown in figure 3, the microprocessor of sound wave transmitting module is STM32F103
Chip generates pulse, the high-voltage pulse of transducer drive module drive field effect transistor generation -350V, via impedance matching
The suspension that the ultrasound examination of driving energy converter transmitting multichannel different frequency is stirred by magnetic stirring apparatus, ultrasonic echo letter
Number after the amplitude limiter circuit of Echo Processing module, pre-amplification circuit, second order bandwidth-limited circuit, it is input to AD high speed acquisition mould
Block and data cache module carry out data acquisition and caching, and it is upper that the signal of acquisition by PCI communication module is sent to PC
Machine, data processing module are analyzed as follows concentration and partial size:
Data processing module fits function to concentration using the fused curved surface of three-dimensional parameter of the velocity of sound, acoustic attenuation and concentration
It is detected, function expression is as follows:
S (V, A)=p1+p2V+p3T+p4V2+p5VT+p6T2；
In formula, p1、p2…p6The parameter of solution respectively to be fitted, V and T are respectively speed and acoustic attenuation；
Data processing module uses the radial base mind based on acoustic attenuation spectrum proposed based on ECHA " long-wavelength region " simplified model
LeNet-5 granularity prediction model through network granularity prediction model and based on sonograph detects partial size, obtain concentration and
Droplet measurement result.
As a preferred embodiment of the present invention, energy converter is respectively the receipts that centre frequency is 1MHZ, 2.5MHZ and 5MHZ
Send out integral type plug-in water sonic transducer.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (7)
1. a kind of multiband ultrasonic wave turbid liquid concentration and droplet measurement system characterized by comprising ultrasonic wave emits mould
Block, Echo Processing module and high speed acquisition module, PCI communication module, magnetic stirring apparatus, PC host computer and data processing mould
Block；Energy converter is fixed in the glass tube on the fixed bracket of energy converter, and microcontroller controls transducer drive module and emits multichannel
The ultrasonic wave of different frequency detects the suspension stirred by the magnetic stirring apparatus, and ultrasonic echo signal is through the echo
The high speed acquisition module controlled after processing module by FPGA acquires, and it is upper that the signal of acquisition by PCI communication module is sent to PC
Machine, the data processing module analyze concentration and partial size, obtain concentration and droplet measurement result.
2. multiband ultrasonic wave turbid liquid concentration according to claim 1 and droplet measurement system, which is characterized in that described
Magnetic stirring apparatus includes: magnetic stirring apparatus, the contactless sink of Multi probe；
The magnetic stirring apparatus is mainly made of DC speed-reducing, external magnet and magnetic stirrer；
The contactless sink of Multi probe is mainly by upper organic glass sink, lower organic glass sink and organic glass round tube group
At；The outer wall of the upper organic glass sink pastes multiple organic glass round tubes, and the lower organic glass bottom of gullet places institute
DC speed-reducing is stated, the external magnet is mounted on the motor shaft of DC speed-reducing, the magnetic stirrer setting
In upper organic glass bottom of gullet, and it is located at right above the DC speed-reducing.
3. multiband ultrasonic wave turbid liquid concentration according to claim 1 and droplet measurement system, which is characterized in that described
Echo Processing module includes amplitude limiter circuit, pre-amplification circuit, second order bandwidth-limited circuit；The high speed acquisition module includes AD
High speed acquisition module, data cache module；The amplitude limiter circuit, pre-amplification circuit, second order bandwidth-limited circuit, AD high
Fast acquisition module and data cache module are sequentially connected.
4. multiband ultrasonic wave turbid liquid concentration according to claim 1 and droplet measurement system, which is characterized in that described
Data processing module fits function using the fused curved surface of three-dimensional parameter of the velocity of sound, acoustic attenuation and concentration and examines to concentration
It surveys, function expression is as follows:
S (V, A)=p1+p2V+p3T+p4V2+p5VT+p6T2；
In formula, p1、p2…p6The parameter of solution respectively to be fitted, V and T are respectively speed and acoustic attenuation；
The data processing module uses the radial base mind based on acoustic attenuation spectrum proposed based on ECHA " long-wavelength region " simplified model
LeNet-5 granularity prediction model through network granularity prediction model and based on sonograph detects partial size.
5. multiband ultrasonic wave turbid liquid concentration according to claim 1 and droplet measurement system, which is characterized in that described
Energy converter is respectively the transmitting-receiving integrated plug-in water sonic transducer that centre frequency is 1MHZ, 2.5MHZ and 5MHZ.
6. multiband ultrasonic wave turbid liquid concentration according to claim 1 and droplet measurement system, which is characterized in that described
The microprocessor of ultrasonic wave transmitting module is STM32F103 chip, generates pulse, the transducer drive module drive field-effect
The high-voltage pulse of transistor generation -350V drives energy converter via impedance matching.
7. multiband ultrasonic wave turbid liquid concentration according to claim 1 and droplet measurement system, which is characterized in that described
Data processing module needs to input the ultrasonic echo digital signal of different frequency.
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Cited By (4)
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| CN112098280A (en) * | 2020-07-28 | 2020-12-18 | 中国计量大学 | Device for measuring concentration and particle size of suspension by ultrasonic waves and using method thereof |
| CN112525785A (en) * | 2020-11-25 | 2021-03-19 | 长江水利委员会长江科学院 | Suspended load sand content measuring method based on novel multi-frequency ultrasonic probe |
| CN113504155A (en) * | 2021-05-27 | 2021-10-15 | 郑州大学 | Device and method for detecting particle wettability in water by ultrasonic waves |
| WO2022214871A1 (en) * | 2021-04-06 | 2022-10-13 | Sartorius Stedim Biotech Gmbh | Ultrasonic sensor systems for characterizing particle suspensions |
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Application publication date: 20190827 |