CN206387695U - A kind of focusing ultrasonic wave formula river load concentration on-line measurement instrument - Google Patents
A kind of focusing ultrasonic wave formula river load concentration on-line measurement instrument Download PDFInfo
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- CN206387695U CN206387695U CN201720025535.3U CN201720025535U CN206387695U CN 206387695 U CN206387695 U CN 206387695U CN 201720025535 U CN201720025535 U CN 201720025535U CN 206387695 U CN206387695 U CN 206387695U
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Abstract
The utility model discloses a kind of focusing ultrasonic wave formula river load concentration on-line measurement instrument.The measuring instrument includes cuboid detection water tank, lowering or hoisting gear, main frame waterborne；Described detection water tank can be opened and closed valve including two focusing ultrasonic transducers, protection shell and two；Described focusing ultrasonic transducer is symmetrically arranged on the front and rear sides of detection water tank in the horizontal direction；Described protection shell is fixed on two faces for being provided with ultrasonic probe and upper side with screw；The described valve both sides that are opened and closed are stuck in the vertical slots of the left and right two sides side of detection water tank, and circulation duct is formed during opening and enters Mobile state measurement, static measurement can be carried out during closing.Resolution ratio of the present utility model and sensitivity are higher than general plane formula ultrasonic meter, are fixed under water during work, reduce the disturbance of current water, and the design of opening and closing valve can allow measuring instrument while carrying out dynamic and the static measurement of river suspended load.
Description
Technical field
It is dense to the attenuation measurement of river suspension, dynamic/static silt that the utility model is related to focusing ultrasonic transducer
Spend ultrasonic device for measuring, more particularly to a kind of focusing ultrasonic wave formula river load concentration on-line measurement instrument.
Background technology
Online accurate detection and monitoring, water conservancy and hydropower work of the accurate measurement of river suspended load concentration to river load parameter
The fields such as Cheng Jianshe, hydrological observation forecast, hydrology metering are all significant, and reasonable utilization, riverbank to Tidal Flat Resources are planted
By the growth of crop, the transition of Haikou V-belt and the sound development of marine ecology also important.
Traditional river load concentration measuring method includes artificial sample method and the indirect method of measurement.Manual sampling methods include
Oven drying method and weight method, although there is the high advantage of precision can not realize that real-time online formula is measured, and measurement period is longer, takes
When it is laborious, especially when carrying out artificial sample in river flood season in the presence of very big potential safety hazard.The indirect method of measurement contains various bases
In the measuring method of different physics fundamental quantities such as light, vibration, electric capacity, ultrasound, isotope, specific heat etc..Wherein, isotope method by
Disabled by Systems in Certain Developed Countries at present in its radiation problem, photoelectric measuring micromicrofarad, isotope method are difficult in the case of high sediment concentration
Accurately measured, measurement of the vibratory drilling method in the case of low flow velocity is out of condition, method of specific heat is that the method just risen in the recent period is relative
It is immature.Ultrasonic method is because penetrability is good, bandwidth, noiseless, real-time are good etc., and advantage can obtain higher essence in low concentration
Degree, in the case of high concentration, with increasing for silt particle, the difference of sediment grain size increases, silt interphase interaction it is obvious with
And the complexity of scattering situation, the intractability increase of ultrasonic theoretical model, therefore it is difficult to obtain accurate result.
Plane formula ultrasonic transducer, its sound sent are used in the research of traditional ultrasonic measurement river suspended load concentration
Ripple scatters situation complexity in transmitting procedure, and acoustic loss is big, and lateral resolution and sensitivity are restricted, in addition actual measurement water
The complexity of sample constituent and and radiation side effect, its apply and develop by certain limitation.Focused ultrasonic transducer
It is widely used in the biomedical sectors such as ultrasonic cleaning and oncotherapy, medical and beauty treatment in recent years.Can be with based on the type of focusing
It is divided into sound lens focusing transducer, sphere Self-focusing transducer, multielement self-focusing transducer, electronically phased array focused transducer,
Wherein the type of focusing of electronically phased array focused transducer can be divided into linear array electron focusing, ring battle array electron focusing and spheric array
Row are focused on.Electronics phase-control focusing transducer is studied due to advantages such as its flexibility and reliabilities in the discussion for receiving numerous scholars, development
Rapidly.Electronically phased array is a series of small array elements of piezoelectric ceramics arranged according to certain way, and each small array element is by independent circuit
Control therefore separate to each other.Under the signal excitation of identical frequency, each array element converts electrical signals to one with a rule
A series of ultrasonic signals of phase bit difference, based on Huygen's principle, interfere between each beam ultrasonic wave, are mutually supported between secondary lobe
Disappear, leave a branch of ultrasonic beam for being gathered in specific direction.
The existing substantial amounts of scholar of current China and factory based on ultrasonic attenuation method to the theoretical model of river load concentration or
Carry out theory deduction or carry out experimental fit, be directed to developing Ultrasonic Sediment concentration measuring instrument, which part is in spy
Determine occasion input to use and obtain comparatively ideal achievement, but independent development is used for the ripe of commercial measurement in range of countries
Ultrasonic Sediment concentration measuring apparatus does not occur.Some developed countries have produced can be measured in the case of high concentration super
Sounding measuring appratus such as OPUS series, but it is bulky and price is very expensive.Although at present according to ultrasonic attenuation principle to river
The parameter measurement research for flowing silt is existing a lot, but due to the complexity and unstability and silt of river water nowed forming
The diversity of composition and distribution situation, therefore for system and completely online of accurate measurement river load content can be realized
Measuring instrumentss need to be developed and perfect.
The content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the utility model is dense there is provided a kind of focusing ultrasonic wave formula river load
On-line measurement instrument is spent, the utility model is easily understood, operate quick and convenient, it is nontoxic to human body, improving resolution ratio and spirit
It can enter Mobile state and static measurement to river suspended load while sensitivity.
The technical scheme that the utility model is used is：
The utility model includes detection water tank, lowering or hoisting gear, main frame waterborne, and described detection water tank is liftable cube
Body, including two focusing ultrasonic transducers, protection shell and two can be opened and closed valve, wherein described focusing ultrasonic wave
Transducer is symmetrically arranged on the front and rear sides of detection water tank in the horizontal direction, and line direction is described perpendicular to fluid flow direction
Protection shell be fixed on two faces for being provided with ultrasonic probe and detect above water tank.Described is opened and closed valve two
Checkpost is in the vertical slots of the left and right two sides side of detection water tank, and cell body one is headed straight for above protection shell, and stream is formed during opening
Thread a pipe into Mobile state measurement, static measurement can be carried out during closing.A fixation is welded in middle above described detection water tank
Bar, fix bar is fixed with support and fixed block on the water.The center of described valve upper end and another fix bar welding, should
The upper end of fix bar is separately fixed on two parallel ball screws, and the ball screw on both sides is by same rotating servo motor
Drive come the lifting with movable valve to realize the switching of valve opening and closing and sound state fluid measurement.
Described main frame waterborne causes ultrasonic probe to launch connecing in ultrasonic signal, detection water tank by cable transmission signal
Information that probe obtains is received by cable transmission to main frame waterborne, described main frame waterborne includes display screen, button, support, outer
Shell and internal circuit；Described circuit includes control module, signal generating module, sensor assembly, signal acquisition module, signal
Processing module, storage and bluetooth module and display module.
Compared with prior art, the beneficial effects of the utility model are：
1st, because the utility model employs focusing ultrasonic probe, relative to traditional plane formula ultrasonic probe,
The ultrasonic scatterer decay that the utility model ultrasonic probe is sent is significantly reduced, and lateral resolution and sensitivity are improved, measurement knot
It is really more reliable.
2nd, because the valve of the utility model left and right sides can be opened and closed, Mobile state measurement and static measurement can be entered simultaneously.
3rd, can be to each because the utility model controls to detect the lifting of water tank using rigid materials such as ball screws
The river suspended load of depth carries out quick measurement to study concentration distribution situation of the suspended load in vertical direction, relative rope class instrument
Device, detection water tank of the present utility model is smaller by the interference of current.
4th, because the utility model is provided with bluetooth module, number will can be measured while this measurement data is obtained with USB
It is shared with comparative analysis according to entering to rack, improve the utilization rate of data.
Brief description of the drawings
Fig. 1 is general arrangement schematic diagram；
Fig. 2 is detection water tank schematic diagram；
Fig. 3 is detection Cistern valve figure；
Fig. 4 is that lowering or hoisting gear constitutes figure；
Fig. 5 is main frame figure waterborne；
Fig. 6 is host circuit module map waterborne；
Fig. 7 is focusing ultrasonic probe schematic diagram.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings.
The utility model proposes focusing ultrasonic wave formula river load concentration on-line measurement instrument, general structure as shown in figure 1,
Main frame 1 waterborne, lowering or hoisting gear 2 and the detection three parts of water tank 3, detection water tank is liftable cube.Described detection water tank 3
Valve 33 can be opened and closed including two focusing ultrasonic transducers 31, protection shell 35 and two.Described focusing ultrasonic wave
Transducer 31 is symmetrically arranged on the front and rear sides of detection water tank 3 in the horizontal direction, and line direction is adopted perpendicular to fluid flow direction
Focused on the spherical array in the electronics phased array type of focusing, the small array element 311 of multiple piezo-electricity composite materials is placed in sphere 312
Array surface is formed, the time difference between each array element 311 is controlled so that the generation of phase difference, fixed exactly by interference effect by circuit
Position focal position makes focus be located exactly at two middles of focused transducer 31.Described protection shell 35 is fixed with screw
Be provided with two faces of ultrasonic probe 31 and detect above water tank 3 be used for protect the higher ultrasonic probe 31 of cost with
And cable 32 necessary to ultrasonic probe transmission signal.Described is opened and closed the left and right two sides that the both sides of valve 33 are stuck in detection water tank 3
In the vertical slots 34 of side, cell body 34 1 heads straight for the top of shell 35 rising excessive caused valve 33 and detection to prevent valve 33
The separation of water tank 3 is difficult to close again, and circulation duct is formed during opening and enters Mobile state measurement, static measurement can be carried out during closing.Institute
A fix bar 361 is welded in the top middle of detection water tank 3 stated, and fix bar 361 is solid with support 27 and fixed block 24 on the water
It is fixed.The center of described fan valve 33 upper end of left and right two is welded with two fix bars 362 respectively, the upper end point of fix bar 362
It is not fixed on two parallel ball screws 21.The hollow fix bar of center above described containment vessel 35 and detection water tank
362 allow two mutual insulatings of cable 32 distribution of the transmitting probe of focusing ultrasonic probe 31 and receiving transducer just.Institute
The ball screw 21 on the both sides stated is driven come the lifting with movable valve 33 to realize that valve 33 is opened by same rotating servo motor
Close and dynamic and static weighing conversion.Described main frame waterborne 1 transmits the ultrasonic signal that signal causes ultrasonic probe 31 by cable 32
Transmitting, the information that detection water tank 3 receiving transducer 31 is obtained is transmitted to main frame 1 waterborne by cable 32, enters to advance by main frame 1 waterborne
The processing of one step.Main frame 1 waterborne includes display screen 11, button 12, support 13, shell 14 and internal circuit 15 and interface 16；It is described
Circuit 15 include control module DSP151, signal generating module 152, sensor assembly 153, signal acquisition module 154, signal
Processing module 155, storage and bluetooth module 156 and display module 157.Signal generating module 152 includes signal generating circuit
1521 and exciting circuit 1522, signal acquisition module 154 is included at signal acquisition 1543, amplification 1542 and filtering 1541, signal
Managing module 155 includes A/D chip 1551 and DSP151, storage and bluetooth module 156 include bluetooth 1561 and USB1562 and
PC1563。
Work of the present utility model is as follows：The utility model can be used for the dynamic measurement and static measurement of river suspended load,
By being connected by interface 16 with main frame 1 waterborne for cable 32 and motor, support 27 is fixed on detecting ship on the water, press by
Key 12 opens main frame 1 waterborne, by lower valve home key, and valve bottom is flushed with water tank bottom.Detection water tank 3, which is moved to, needs measurement
Place, by lower valve key point, servomotor drive worm and gear worm screw 25 rotate, turbine 26 drives coaxial screw mandrel therewith
Nut 22 is rotated, and screw mandrel 21 rises fixed range to valve and opened, and target water body flows through detection water tank.Selected according to concrete condition
Dynamic and static measurement, during dynamic measurement, valve can maintain a normally open state, during static measurement, crucial by lower valve, servo electricity
Machine is inverted, and drives the worm screw 25 of worm and gear, turbine 26, feed screw nut 22 to rotate backward, screw mandrel 21 declines fixed range extremely
Valve is closed, and target water body is still in detection water tank.
The keypad 12 of main frame 1 selects required waveform on the water, and electric signal is passed to ultrasonic wave transmitting transducing by cable 32
Device 31, electric signal is converted into acoustical signal, and sound wave there occurs in each particle surface various multiple in measured medium in communication process
Miscellaneous effect, experienced and reach ultrasonic reception transducer including processes such as scatter attenuation, attenuations by absorption.Phased array is controlled not
There is phase difference between same time transmitting acoustical signal, each beam ultrasonic wave, by interference effect, scatter attenuation is greatly reduced, ultrasound
Ripple is gradually assembled to focus direction in the air, and sound wave after focusing after fluid measured by the receiving probe on opposite by after 31 being received
And electric signal is converted into, electric signal now is compared to transmission signal very little, and comprising many useless clutters, by cable
32 transfer back to main frame 1 waterborne.Circuit system in main frame 1 waterborne gathers the letter of 1543 ultrasonic transducer receiving transducers 31 transmission
Number, 1542,1543 and A/D of filtering conversions 1551 are amplified for faint signal, data signal is carried out into DSP152
Various processing, obtain the silt content of target water body suspended load after further denoising.User can be with Selection utilization bluetooth 1561
Function transfers data to suspended load concentration cloud and shared, and is compared analysis with existing measurement result and following measurement is carried
For data reference, USB1562 equipment can also be used data copy is subjected to privatization and analyzed to PC1563.Complete after measurement,
Valve open state is kept detection water tank is thoroughly dried.
It is described above, only it is preferred embodiment of the present utility model, not the utility model is imposed any restrictions, every
Any simple modification, change and the equivalent structure change made according to the utility model technical spirit to above example, still
Belong in the protection domain of technical solutions of the utility model.
Claims (1)
1. a kind of focusing ultrasonic wave formula river load concentration on-line measurement instrument, including detection water tank, lowering or hoisting gear, main frame waterborne,
It is characterized in that：Described detection water tank is liftable cube, including two focusing ultrasonic transducers, protection shell and
Two can be opened and closed valve, wherein described focusing ultrasonic transducer is symmetrically arranged on the front and rear of detection water tank in the horizontal direction
Both sides, line direction is fixed on two faces for being provided with ultrasonic probe perpendicular to fluid flow direction, described protection shell
And above detection water tank；The described valve both sides that are opened and closed are stuck in the vertical slots of the left and right two sides side of detection water tank,
Cell body one is headed straight for above protection shell, and circulation duct is formed during opening and enters Mobile state measurement, static measurement can be carried out during closing；
A fix bar is welded in middle above described detection water tank, and fix bar is fixed with support and fixed block on the water；Described
The center of valve upper end and another fix bar welding, the upper end of the fix bar is separately fixed at two parallel ball screws
On, the ball screw on both sides is driven come the lifting with movable valve to realize valve opening and closing and sound by same rotating servo motor
The switching of state fluid measurement；
Described main frame waterborne causes ultrasonic probe to launch the reception in ultrasonic signal, detection water tank and visit by cable transmission signal
The information that head is obtained by cable transmission to main frame waterborne, described main frame waterborne include display screen, button, support, shell and
Internal circuit；Described circuit includes control module, signal generating module, sensor assembly, signal acquisition module, signal transacting
Module, storage and bluetooth module and display module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720025535.3U CN206387695U (en) | 2017-01-10 | 2017-01-10 | A kind of focusing ultrasonic wave formula river load concentration on-line measurement instrument |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720025535.3U CN206387695U (en) | 2017-01-10 | 2017-01-10 | A kind of focusing ultrasonic wave formula river load concentration on-line measurement instrument |
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| Publication Number | Publication Date |
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| CN206387695U true CN206387695U (en) | 2017-08-08 |
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| CN201720025535.3U Expired - Fee Related CN206387695U (en) | 2017-01-10 | 2017-01-10 | A kind of focusing ultrasonic wave formula river load concentration on-line measurement instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769733A (en) * | 2017-01-10 | 2017-05-31 | 中国计量大学 | Focusing ultrasonic wave formula river load concentration on-line measurement instrument |
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2017
- 2017-01-10 CN CN201720025535.3U patent/CN206387695U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769733A (en) * | 2017-01-10 | 2017-05-31 | 中国计量大学 | Focusing ultrasonic wave formula river load concentration on-line measurement instrument |
| CN106769733B (en) * | 2017-01-10 | 2020-09-18 | 中国计量大学 | Ultrasonic focusing type river sediment concentration on-line measuring instrument |
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Granted publication date: 20170808 |