CN103558047A - Multi-frequency ultrasonic washing effect experimental platform - Google Patents
Multi-frequency ultrasonic washing effect experimental platform Download PDFInfo
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- CN103558047A CN103558047A CN201310556615.8A CN201310556615A CN103558047A CN 103558047 A CN103558047 A CN 103558047A CN 201310556615 A CN201310556615 A CN 201310556615A CN 103558047 A CN103558047 A CN 103558047A
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Abstract
The invention discloses a multi-frequency ultrasonic washing effect experimental platform which comprises a core control module, a first relay module, a second relay module, a third relay module, an input isolation module, a power amplifying module, a first matching transformer, a second matching transformer, five ultrasonic signal generating modules, five matching inductors and five transducer arrays. A signal output end of the core control module is connected with control signal input ends of the ultrasonic signal generating modules, the first relay module, the second relay module and the third relay module and is used for generating corresponding switching control signals according to input working frequency selective signals and transmitting the signals to the first relay module, the second relay module and the third relay module. Output ends of the five ultrasonic signal generating modules are in selective connection with the input isolation module through the first relay module respectively. According to the multi-frequency ultrasonic washing effect experimental platform, multiple frequency groups can be used for underwater construction object dirt washing effect researching, the effectiveness and the relative property of washing effect are obvious, and the best frequency suitable for underwater construction object dirt washing is found in real time.
Description
Technical field
The present invention relates to a kind of multi-frequency ultrasonic cleaning effect experiment porch, belong to ultrasonic cleaning technology field.
Background technology
At present, dam gate or dam body etc. are everywhere by the place of the long-term submergence of water, and its surface will deposit certain dirt and affect even damage equipment of its normal function.At present ultrasonic technique being applied to the experience of the clean-out operation of construction under water deficienter, although someone proposes the ultrasonic cleaning method of main equipment under water, is mostly under certain specific environment, adopts single ultrasonic cleaning frequency.And the physical characteristics of dirt, thickness, flintiness etc. are closely bound up with situation and the doping property in water of water quality, the ultrasonic transducer that adopts single-frequency cleans construction under water, is difficult to reach engineering demand.On the one hand, because signal frequency selection is improper, its cleaning performance will be had a greatly reduced quality, and need to extend the working time of ultrasonic transducer, thereby will increase energy consumption, is unfavorable for energy-saving and emission-reduction.On the other hand, if adopt that the ultrasonic transducer of single-frequency goes to clean that some is frangible, during the surperficial dirt of easy wound, will make the surface cleaned impaired or damage.So, according to different scavenger surface situations, the situations such as the physical characteristics of dirt, thickness and flintiness; the signal frequency of selecting appropriate surfaces to clean is cleaned, will be to improving construction cleaning performance under water, and protection dam body; extend the service time of ultrasonic transducer, reduce CO
2discharge produces positive effect.
Therefore, develop a kind of have self-adaptive features, can be applied to clean different surfaces and remove the surface cleaning apparatus of construction under water of different dirts significant to the maintenance of water conservancy projects.
Summary of the invention
Technical matters to be solved by this invention is the defect that overcomes prior art, a kind of multi-frequency ultrasonic cleaning effect experiment porch is provided, it can adopt many class frequencys to carry out construction under water and clean the research of dirt effect, give prominence to validity and the contrast property of cleaning performance, found out in real time the most applicable this optimum frequency of construction Fouling Cleaning under water.
In order to solve the problems of the technologies described above, technical scheme of the present invention is: a kind of multi-frequency ultrasonic cleaning effect experiment porch, and it comprises kernel control module, the first relay module, the second relay module, the 3rd relay module, input isolation module, power amplifier module, the first matching transformer, the second matching transformer, five ultrasonic signal generation modules, five coupling inductance and five transducer arrays; Wherein,
Kernel control module, its signal output part is connected with the control signal input end of ultrasonic signal generation module, the first relay module, the second relay module, the 3rd relay module respectively, for selecting signal to produce corresponding switch-over control signal according to the frequency of operation of input, passes to respectively the first relay module, the second relay module and the 3rd relay module;
Five ultrasonic signal generation modules, its output terminal is connected with input isolation module selectivity by the first relay module respectively, for exporting respectively the ultrasound drive signals of different frequency;
The first relay module, for receiving corresponding switch-over control signal and selecting to connect corresponding ultrasonic signal generation module and input isolation module;
Input isolation module, its output terminal is connected with power amplifier module, for driving power amplification module, works;
Power amplifier module, its output terminal is connected with the second matching transformer selectivity with the first matching transformer respectively by the second relay module;
The second relay module, for receiving corresponding switch-over control signal and selecting to connect power amplifier module and corresponding the first matching transformer or the second matching transformer;
Five coupling inductance, it is corresponding one by one with five ultrasonic signal generation modules respectively, and wherein the input end of three coupling inductance is connected with the first matching transformer selectivity by the 3rd relay module respectively, the input end of two other coupling inductance is connected with the second matching transformer selectivity by the 3rd relay module respectively, the output terminal of five coupling inductance is connected with corresponding transducer array respectively, for the transducer array to corresponding, carries out resonance matching;
The first matching transformer and the second matching transformer, for changing the impedance of corresponding transducer array, make it mate with information source impedance phase, guarantees that corresponding transducer array obtains maximum electric power;
The 3rd relay module, for receiving corresponding switch-over control signal and selecting to connect corresponding coupling inductance and the first matching transformer; Also for receiving corresponding switch-over control signal and selecting to connect corresponding coupling inductance and the second matching transformer.
Further, five described ultrasonic signal generation modules are respectively the first ultrasonic signal generation module, the second ultrasonic signal generation module, the 3rd ultrasonic signal generation module, the 4th ultrasonic signal generation module and the 5th ultrasonic signal generation module, the ultrasound drive signals that the first described ultrasonic signal generation module output frequency is 20KHZ, the ultrasound drive signals that the second ultrasonic signal generation module output frequency is 40KHZ, the ultrasound drive signals that the 3rd ultrasonic signal generation module output frequency is 80KHZ, the ultrasound drive signals that the 4th ultrasonic signal generation module output frequency is 160KHZ, the ultrasound drive signals that the 5th ultrasonic signal generation module output frequency is 200KHZ.
Further, five described coupling inductance are respectively the first coupling inductance, the second coupling inductance, the 3rd coupling inductance, the 4th coupling inductance and the 5th coupling inductance, the first coupling inductance is corresponding with the first ultrasonic signal generation module, and its resonance frequency is 20KHZ, the second coupling inductance is corresponding with the second ultrasonic signal generation module, and its resonance frequency is 40KHZ, the 3rd coupling inductance is corresponding with the 3rd ultrasonic signal generation module, and its resonance frequency is 80KHZ, the 4th coupling inductance is corresponding with the 4th ultrasonic signal generation module, and its resonance frequency is 160KHZ, the 5th coupling inductance is corresponding with the 5th ultrasonic signal generation module, and its resonance frequency is 200KHZ.
Further, described input isolation module is formed by connecting by driving circuit and isolating transformer.
Further, power amplifier module adopts semi-bridge type ultrasonic power amplifying circuit.
Further, can device battle array be formed by a plurality of transducers, and each transducer is formed in parallel by multi-disc piezoelectric ceramic piece.
Adopted after technique scheme, owing to adopting adaptive technique can utilize five kinds of frequencies under different frequency range to different constructions under water and different conditions, (can be 20kHz, 40 kHz, 80 kHz, 160 kHz and 200 kHz) transducer array carry out under water construction and clean the research of dirt effect, validity and the contrast property of cleaning performance have been given prominence to, and multi-frequency ultrasonic cleaning effect experiment porch of the present invention has simple in structure, cost is low, energy-conservation, easy to operate and cleaning performance obviously and be easy to the features such as contrast, significant aspect ultrasonic cleaning technique research.
Accompanying drawing explanation
Fig. 1 is the theory diagram of multi-frequency ultrasonic cleaning effect experiment porch of the present invention.
Embodiment
For content of the present invention is more easily expressly understood, according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation below.
As shown in Figure 1, a ultrasonic cleaning effect experiment porch, it comprises kernel control module, the first relay module 1, the second relay module 2, the 3rd relay module 3, input isolation module, power amplifier module, the first matching transformer, the second matching transformer, five ultrasonic signal generation modules, five coupling inductance and five transducer arrays 4; Wherein,
Kernel control module, its signal output part is connected with the control signal input end of ultrasonic signal generation module, the first relay module 1, the second relay module 2, the 3rd relay module 3 respectively, for selecting signal to produce corresponding switch-over control signal according to the frequency of operation of input, passes to respectively the first relay module 1, the second relay module 2 and the 3rd relay module 3;
Five ultrasonic signal generation modules, its output terminal is connected with input isolation module selectivity by the first relay module 1 respectively, for exporting respectively the ultrasound drive signals of different frequency;
The first relay module 1, be used for receiving corresponding switch-over control signal and select to connect corresponding ultrasonic signal generation module and input isolation module, thereby select the frequency of ultrasound drive signals, the public port of the first relay module 1 connects input isolation module, select port to connect respectively five ultrasonic signal generation modules for five, it is controlled by kernel control module.
Input isolation module, its output terminal is connected with power amplifier module, for ultrasound drive signals being carried out to prime amplification and ultrasonic signal generation module and power amplifier module being isolated, thus the normal operation of driving power amplification module;
Power amplifier module, its output terminal is connected with the second matching transformer selectivity with the first matching transformer respectively by the second relay module 2, for ultrasound drive signals is carried out to power amplification;
The second relay module 2, for receiving corresponding switch-over control signal and selecting to connect power amplifier module and corresponding the first matching transformer or the second matching transformer; The public port of the second relay module 2 connects power amplifier module, selects port to connect respectively the first matching transformer and the second matching transformer for two, and it is controlled by kernel control module.
Five coupling inductance, it is corresponding one by one with five ultrasonic signal generation modules respectively, and wherein the input end of three coupling inductance is connected with the first matching transformer selectivity by the 3rd relay module 3 respectively, the input end of two other coupling inductance is connected with the second matching transformer selectivity by the 3rd relay module 3 respectively, the output terminal of five coupling inductance is connected with corresponding transducer array 4 respectively, for corresponding transducer array 4 is carried out to resonance matching, make corresponding transducer array 4 circuit be tending towards pure resistive;
The first matching transformer and the second matching transformer, for changing the impedance of corresponding transducer array 4, make it mate with information source impedance phase, guarantees that corresponding transducer array 4 obtains maximum electric power;
The 3rd relay module 3, for receiving corresponding switch-over control signal and selecting to connect corresponding coupling inductance and the first matching transformer; Also for receiving corresponding switch-over control signal and selecting to connect corresponding coupling inductance and the second matching transformer.
Kernel control module be take MSP430F149 single-chip microcomputer as core, controls the break-make mode of three relay module according to the information of key-press input, thereby realizes the function of the ultrasonic signal driving ultrasonic transducer work of selecting required frequency.
Five ultrasonic signal generation modules are respectively the first ultrasonic signal generation module, the second ultrasonic signal generation module, the 3rd ultrasonic signal generation module, the 4th ultrasonic signal generation module and the 5th ultrasonic signal generation module, the ultrasound drive signals that the first described ultrasonic signal generation module output frequency is 20KHZ, the ultrasound drive signals that the second ultrasonic signal generation module output frequency is 40KHZ, the ultrasound drive signals that the 3rd ultrasonic signal generation module output frequency is 80KHZ, the ultrasound drive signals that the 4th ultrasonic signal generation module output frequency is 160KHZ, the ultrasound drive signals that the 5th ultrasonic signal generation module output frequency is 200KHZ.
Five coupling inductance are respectively the first coupling inductance, the second coupling inductance, the 3rd coupling inductance, the 4th coupling inductance and the 5th coupling inductance, the first coupling inductance is corresponding with the first ultrasonic signal generation module, and its resonance frequency is 20KHZ, the second coupling inductance is corresponding with the second ultrasonic signal generation module, and its resonance frequency is 40KHZ, the 3rd coupling inductance is corresponding with the 3rd ultrasonic signal generation module, and its resonance frequency is 80KHZ, the 4th coupling inductance is corresponding with the 4th ultrasonic signal generation module, and its resonance frequency is 160KHZ, the 5th coupling inductance is corresponding with the 5th ultrasonic signal generation module, and its resonance frequency is 200KHZ.Five coupling inductance can adopt PQ-28 type skeleton, E-E type ferrite, silk yarn covered wire coiling to form.
Five ultrasonic signal generation modules all have SG3525 chip, by changing the resistance value of chip the 6th pin, produce the ultrasound drive signals of 20kHz, 40kHz, 80kHz, 160kHz and five kinds of frequencies of 200kHz.
Input isolation module is formed by connecting by driving circuit and isolating transformer, input isolation module be take the driving circuit that TIP122 chip NPN Darlington power transistor and TIP127 chip PNP Darlington power transistor be core and is formed, reach the object of driven MOS FET, in input isolation module, contain and adopt the isolating transformer that PQ-26 type skeleton, E-E type magnetic core, the coiling of 0.27mm diameter enameled wire, former secondary coil turn ratio are 1:1, avoid the interference of forward and backward level circuit signal.
Power amplifier module adopts semi-bridge type ultrasonic power amplifying circuit, and the ultrasound drive signals power amplification of five kinds of different frequencies is arrived to 100W.
The transformer that the first matching transformer can form with PQ-28 type skeleton, E-E type ferrite, silk yarn covered wire coiling is realized the impedance matching of rear end respective transducer battle array 4 circuit and front-end circuit when frequency is 20kHz, 40kHz and 80kHz.
The transformer that the second matching transformer can adopt PQ-28 type skeleton, E-E type ferrite, silk yarn covered wire coiling to form is realized the impedance matching of rear end respective transducer battle array 4 circuit and front-end circuit when frequency is 160kHz and 200kHz.
The 3rd relay module 3 is when frequency is 20kHz, 40kHz and 80kHz, its top public port connects the first matching transformer, select port to connect respectively the first coupling inductance, the second coupling inductance, the 3rd coupling inductance for corresponding three, it is controlled by kernel control module, the 3rd relay module 3 is when frequency is 160kHz and 200kHz, its underpart public port connects the second matching transformer, select port to connect respectively the 4th coupling inductance, the 5th coupling inductance for corresponding two, it is controlled by kernel control module.
Principle of work of the present invention is as follows:
In experiment five frequently during changeable ultrasonic cleaning experimental study, choice experiment ultrasonic signal frequencies as required.By kernel control module, selected ultrasound drive signals frequency is set, kernel control module is controlled corresponding ultrasonic signal generation module and the first relay module 1 co-ordination, control the second relay module 2 simultaneously and be connected corresponding the first matching transformer or the second matching transformer with the 3rd relay module 3, and mate accordingly inductance.Ultrasonic signal generation module produces the one pole square-wave signal that the two-way with same frequency and reversed-phase peak value corresponding with institute selected frequency is 5V, through the first relay module 1, export to the driving circuit in input isolation module, the one pole square-wave signal that two-way with same frequency and reversed-phase peak value is 5V is shaped as through amplifying the bipolar square wave signal that a road peak value is 12V, the isolating transformer that signal is 1:1 via turn ratio is divided into two-way with same frequency and reversed-phase signal, drives coupled power amplifier module.The output terminal of power amplifier module connects the second relay module 2, selection output terminal gating the first matching transformer or second matching transformer of the second relay module 2, the supply voltage of power amplifier module is 310V, the first matching transformer and the second matching transformer are for realizing the impedance matching with transducer array 4, the output terminal of the first matching transformer connects the upper public port of the 3rd relay module 3, selects accordingly port to connect the first coupling inductance, the second coupling inductance and the 3rd coupling inductance; The output terminal of the second matching transformer connects the lower public port of the 3rd relay module 3, selects accordingly port to connect the 4th coupling inductance and the 5th coupling inductance.Kernel control module will be controlled the signal transmission path of the second relay module 2 and the 3rd relay module 3 selection settings, the port of respectively selecting of the 3rd relay module 3 is connected with each coupling inductance, by gating, mate accordingly inductance and be connected with corresponding transducer array 4, realize resonance matching.Corresponding transducer array 4 is converted into ultrasonic mechanical vibration by the ultrasonic electric signal of input, thereby makes the water generation ultrasonic cavitation effect of transducer array 4 front and back, treats the surface of cleaning materials and carries out ultrasonic cleaning.Change selected hyperacoustic frequency, repeat above process, Fouling Cleaning effect is carried out to specific aim and probe into.
Above-described specific embodiment; technical matters, technical scheme and beneficial effect that the present invention is solved further describe; institute is understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. a multi-frequency ultrasonic cleaning effect experiment porch, is characterized in that: it comprises kernel control module, the first relay module (1), the second relay module (2), the 3rd relay module (3), input isolation module, power amplifier module, the first matching transformer, the second matching transformer, five ultrasonic signal generation modules, five coupling inductance and five transducer arrays (4); Wherein,
Kernel control module, its signal output part is connected with the control signal input end of ultrasonic signal generation module, the first relay module (1), the second relay module (2), the 3rd relay module (3) respectively, for selecting signal to produce corresponding switch-over control signal according to the frequency of operation of input, passes to respectively the first relay module (1), the second relay module (2) and the 3rd relay module (3);
Five ultrasonic signal generation modules, its output terminal is connected with input isolation module selectivity by the first relay module (1) respectively, for exporting respectively the ultrasound drive signals of different frequency;
The first relay module (1), for receiving corresponding switch-over control signal and selecting to connect corresponding ultrasonic signal generation module and input isolation module;
Input isolation module, its output terminal is connected with power amplifier module, for driving power amplification module, works;
Power amplifier module, its output terminal is connected with the second matching transformer selectivity with the first matching transformer respectively by the second relay module (2);
The second relay module (2), for receiving corresponding switch-over control signal and selecting to connect power amplifier module and corresponding the first matching transformer or the second matching transformer;
Five coupling inductance, it is corresponding one by one with five ultrasonic signal generation modules respectively, and wherein the input end of three coupling inductance is connected with the first matching transformer selectivity by the 3rd relay module (3) respectively, the input end of two other coupling inductance is connected with the second matching transformer selectivity by the 3rd relay module (3) respectively, the output terminal of five coupling inductance is connected with corresponding transducer array (4) respectively, for the transducer array to corresponding (4), carries out resonance matching;
The first matching transformer and the second matching transformer, for changing the impedance of corresponding transducer array (4), make it mate with information source impedance phase, guarantees that corresponding transducer array (4) obtains maximum electric power;
The 3rd relay module (3), for receiving corresponding switch-over control signal and selecting to connect corresponding coupling inductance and the first matching transformer; Also for receiving corresponding switch-over control signal and selecting to connect corresponding coupling inductance and the second matching transformer.
2. multi-frequency ultrasonic cleaning effect experiment porch according to claim 1, it is characterized in that: five described ultrasonic signal generation modules are respectively the first ultrasonic signal generation module, the second ultrasonic signal generation module, the 3rd ultrasonic signal generation module, the 4th ultrasonic signal generation module and the 5th ultrasonic signal generation module, the ultrasound drive signals that the first described ultrasonic signal generation module output frequency is 20KHZ, the ultrasound drive signals that the second ultrasonic signal generation module output frequency is 40KHZ, the ultrasound drive signals that the 3rd ultrasonic signal generation module output frequency is 80KHZ, the ultrasound drive signals that the 4th ultrasonic signal generation module output frequency is 160KHZ, the ultrasound drive signals that the 5th ultrasonic signal generation module output frequency is 200KHZ.
3. multi-frequency ultrasonic cleaning effect experiment porch according to claim 1, it is characterized in that: five described coupling inductance are respectively the first coupling inductance, the second coupling inductance, the 3rd coupling inductance, the 4th coupling inductance and the 5th coupling inductance, the first coupling inductance is corresponding with the first ultrasonic signal generation module, and its resonance frequency is 20KHZ, the second coupling inductance is corresponding with the second ultrasonic signal generation module, and its resonance frequency is 40KHZ, the 3rd coupling inductance is corresponding with the 3rd ultrasonic signal generation module, and its resonance frequency is 80KHZ, the 4th coupling inductance is corresponding with the 4th ultrasonic signal generation module, and its resonance frequency is 160KHZ, the 5th coupling inductance is corresponding with the 5th ultrasonic signal generation module, and its resonance frequency is 200KHZ.
4. multi-frequency ultrasonic cleaning effect experiment porch according to claim 1, is characterized in that: described input isolation module is formed by connecting by driving circuit and isolating transformer.
5. according to the multi-frequency ultrasonic cleaning effect experiment porch described in claim 1 or 4, it is characterized in that: described power amplifier module adopts semi-bridge type ultrasonic power amplifying circuit.
6. multi-frequency ultrasonic cleaning effect experiment porch according to claim 1, is characterized in that: transducer array (4) is comprised of a plurality of transducers, and each transducer is formed in parallel by multi-disc piezoelectric ceramic piece.
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Cited By (2)
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| CN103876655A (en) * | 2014-03-27 | 2014-06-25 | 河海大学常州校区 | Kitchen cleaning and disinfecting machine with sound-light and ozone combined and working method thereof |
| CN106353118A (en) * | 2016-08-29 | 2017-01-25 | 南京巨鲨显示科技有限公司 | Cleaning efficiency monitoring device for ultrasonic cleaner |
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