CN207366513U - Ultrasonic echo detection device - Google Patents
Ultrasonic echo detection device Download PDFInfo
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- CN207366513U CN207366513U CN201721108317.2U CN201721108317U CN207366513U CN 207366513 U CN207366513 U CN 207366513U CN 201721108317 U CN201721108317 U CN 201721108317U CN 207366513 U CN207366513 U CN 207366513U
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Abstract
The embodiment of the present application provides a kind of ultrasonic echo detection device, including：The cathode probe and anode contacted respectively with the cathode and anode of the ultrasonic piezoelectric on workpiece is popped one's head in；Ultrasonic excitation device, is electrically connected with cathode probe and anode probe, for applying the first voltage signal for excitation ultrasound ripple to cathode probe and anode probe；Ultrasonic echo collector, is electrically connected with cathode probe and anode probe, for detecting second voltage signal caused by the ultrasonic echo excitation ultrasonic piezoelectric.By the ultrasonic echo detection device, ultrasonic echo detection efficiency can be improved, and then improve the efficiency and accuracy rate of Work inspection device.
Description
Technical field
It the utility model is related to mechanical workpieces detection field, more particularly to a kind of ultrasonic echo detection device.
Background technology
Workpiece is the most basic component units of all kinds of mechanical equipments, in heavy mechanical equipment (such as wind power generating set
Deng) in, thousands of workpiece is related to the operating of equipment and the safety of operating personnel.Therefore, for having installed workpiece (especially
Crucial workpiece) inspect periodically and be particularly important.When checking having installed workpiece, since piece count is numerous,
Plus factors such as the own dimensions of workpiece, installation site, mounting means so that Work inspection device work (such as the inspecting identity of workpiece
Look into, status checkout etc.) become a difficult point.
In the prior art, there is the scheme that (such as workpiece flaw detection) is checked workpiece using ultrasonic wave, it usually needs
Using moveable ultrasound source in the case where being close to workpiece surface to be detected, mobile launches ultrasonic wave simultaneously to inside workpiece
Detection echo (including the ultrasound source direct back wave on surface, the back wave of basal surface, defect or wound echo for being close to etc.),
And the defects of echo of above-mentioned blending constituent or wound echo are identified based on recognizer etc., to realize that workpiece is detected a flaw
Purpose.
But in the above method, on the one hand, the operating process of echo detecting is relatively complicated, and detection efficiency is relatively low, and then
Work inspection device is less efficient；On the other hand, the echo detected by way of mobile ultrasound source is the echo of blending constituent,
The identification of defect or wound is carried out based on algorithm by the echo to the blending constituent, the accuracy rate and effect of Work inspection device can be influenced
Rate.
Utility model content
The utility model provides a kind of ultrasonic echo detection device, can improve ultrasonic echo detection efficiency, and then
Improve the efficiency and accuracy rate of Work inspection device.
To reach above-mentioned purpose, embodiments herein adopts the following technical scheme that：
A kind of ultrasonic echo detection device, including：
The cathode probe and anode probe contacted respectively for the cathode and anode with the ultrasonic piezoelectric on workpiece；
Ultrasonic excitation device, with the cathode probe and the anode probe is electrically connected, for the cathode pop one's head in
The anode probe applies the first voltage signal for excitation ultrasound ripple；
Ultrasonic echo collector, is electrically connected with cathode probe and anode probe, is returned for detecting ultrasonic wave
Second voltage signal caused by the ripple excitation ultrasonic piezoelectric.
Ultrasonic echo detection device provided by the utility model, by ultrasonic excitation device to being arranged on workpiece surface
The workpiece of ultrasonic piezoelectric applies ultrasonic excitation signal and is allowed to produce the ultrasonic wave propagated towards workpiece bottom direction, and leads to
Cross ultrasonic echo collector and gather the ultrasonic wave through inside workpiece and from the ultrasonic echo of workpiece bottom return, due to this
Ultrasonic wave has run through whole part of the inside workpiece from surface to bottom, and the complete structure that can obtain inside workpiece exactly is special
Property, so as to carry out the operation of the Work inspection devices such as identification, state-detection easy to subsequently be based on ultrasonic echo to workpiece, carry
The efficiency and accuracy rate of high Work inspection device.Moreover, the object for applying ultrasonic excitation signal is integrally fixed at the ultrasound of workpiece surface
Piezoelectric, its ultrasonic wave direction produced and path are relatively stable, compared with prior art in pass through the side of mobile ultrasound source
For the echo that formula produces, it does not have excessive blending constituent, can more efficiently and accurately to the characteristic of workpiece itself into
Row detection.In addition, in above-mentioned detection device, the output of ultrasonic excitation device and the input of ultrasonic echo collector share
A pair of of positive and negative anodes probe, so that the structure of detection device is more simplified, and greatly improves detection efficiency.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand the skill of the utility model
Art means, and being practiced according to the content of specification, and in order to allow above and other purpose, feature of the utility model
It can be become apparent with advantage, below especially exemplified by specific embodiment of the present utility model.
Brief description of the drawings
By reading the detailed description of hereafter preferred embodiment, it is various other the advantages of and benefit it is common for this area
Technical staff will be clear understanding.Attached drawing is only used for showing the purpose of preferred embodiment, and is not considered as to this practicality
New limitation.And in whole attached drawing, identical component is denoted by the same reference numerals.In the accompanying drawings：
Fig. 1 is ultrasonic echo detection method flow diagram in the utility model embodiment；
Fig. 2 is the structure diagram of ultrasonic piezoelectric in the utility model embodiment；
Fig. 3 is the structure diagram of ultrasonic echo detection device in the utility model embodiment；
Fig. 4-1 and Fig. 4-2 is that the positive and negative anodes sonde configuration of ultrasonic echo detection device in the utility model embodiment shows
It is intended to；
Fig. 4-3 is the positive and negative anodes probe of ultrasonic echo detection device in the utility model embodiment and ultrasonic piezoelectric
The structure diagram of contact；
Fig. 5 is the structure diagram of another ultrasonic echo detection device in the utility model embodiment；
Fig. 6 is the structure diagram of another ultrasonic echo detection device in the utility model embodiment.
Embodiment
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although the disclosure is shown in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
Limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
Completely it is communicated to those skilled in the art.
The technical solution of the utility model is further illustrated below by embodiment.
Embodiment one
As shown in Figure 1, be the ultrasonic echo detection method flow diagram shown in the present embodiment, this method may include as
Lower step：
S110, applies ultrasonic excitation signal, with workpiece table to the ultrasonic piezoelectric for being pre-set at workpiece surface
Face produces the ultrasonic wave propagated towards workpiece bottom direction.
In the present embodiment, ultrasonic piezoelectric can use piezoelectric ceramics, piezoelectric single crystal etc., referring to shown in Fig. 2, with super
Acoustic pressure electric material is exemplified by piezoelectric ceramics, which may include cathode 201, anode 202, for setting
, can be by external ultrasound driving source just when the workpiece for having ultrasonic piezoelectric is checked (such as identification, state-detection)
Pole probe, anode probe are connected to cathode 201, the anode 202 of ultrasonic piezoelectric, to be applied to ultrasonic piezoelectric 20
Add and produce ultrasonic wave in workpiece surface after ultrasonic excitation signal, which can propagate downwards along workpiece, and reach work
Part returns behind bottom, and the ultrasonic wave of return is known as ultrasonic echo.
In specific implementation, under a kind of implementation, which can be pre-set at workpiece with fixed form
Surface, than such as by gluing (such as using two component, instant drying adhesive), sputtering technique, 3D printing technique etc. by ultrasonic piezoelectricity
Material is fixedly installed on workpiece surface, and by the fixed setting mode, setting can once use for a long time, be set without repetition,
Save human cost；In addition, using the fixed setting mode, without as needed for some on-fixed set-up modes in workpiece surface
Ultrasonic coupling agent is smeared between ultrasonic piezoelectric, can further save material and human cost.
Under another implementation, which can be pre-set at workpiece surface in a manner of on-fixed, than
Ultrasonic piezoelectric is arranged at workpiece surface such as by means such as magnetic support, fixing brackets, in practical applications, can also be
Ultrasonic coupling agent etc. is smeared between workpiece surface and ultrasonic piezoelectric, to avoid due to ultrasonic piezoelectric and workpiece surface it
Between cause ultrasonic wave to launch in Air Interface there are air gap, most of ultrasonic wave can not be into the feelings of people's inside workpiece
Condition, with this, by the on-fixed set-up mode, can be more convenient for replacing excess sound pressure when ultrasonic piezoelectric breaks down, damages
Electric material, without integrally being replaced to workpiece, to save cost.
S120, is detected the ultrasonic echo from workpiece bottom back to workpiece surface.
After workpiece surface produces ultrasonic wave, it is overall via ultrasonic piezoelectric, inside workpiece to can detect the ultrasonic wave
And the ultrasonic echo returned by workpiece bottom, so as to based on the ultrasonic echo is analyzed and processed with realize to workpiece into
The purpose that row checks.Since ultrasonic echo from workpiece surface through inside workpiece structure reaches workpiece bottom, then further along
Bottom returns to the surface where ultrasound piezoelectric material, and the transmission path of whole ultrasonic wave and ultrasonic echo has run through workpiece
Whole internal structure, therefore the Global Information of the internal structure of workpiece can be carried, based on the Global Information, can be more convenient for follow-up
Workpiece is checked (such as to workpiece into identification, state-detection etc.), can be improved to the efficiency of Work inspection device with this and
Accuracy rate.
In addition, while ultrasonic echo is detected, can also further detect the temperature of workpiece, due to temperature in itself for
Ultrasonic echo has a certain impact, and therefore, can subsequently be based on ultrasonic echo to workpiece according to the temperature data detected
Check and certain correcting action is provided, to improve the accuracy rate of Work inspection device result.
In specific implementation, can apply to the ultrasonic piezoelectric for being pre-set at workpiece surface for excitation ultrasound ripple
Voltage signal (in the present embodiment, can be described as first voltage signal), for example can apply N number of (such as 1 to 5) with default frequency
The first voltage signal of rate, default amplitude and predetermined pulse number, the first voltage signal can use square wave, therefore, ultrasound
Wave-exciting device 33 can use square voltage pulse generator.
Wherein, specific amplitude can be returned according to the characteristic of ultrasonic piezoelectric and/or the ultrasonic wave of detection ultrasonic echo
The resolution ratio of ripple collector determines, generally can change in the range of 16V-110V；Due to pulse number and pulse data
It is directly proportional, and pulse data can cause the phenomenon of first voltage signal and second voltage Signal averaging too much, therefore, it is also desirable to root
According to being actually needed, suitable pulse number is set.
Based on first voltage signal after workpiece surface produces ultrasonic wave, ultrasonic wave is propagated downwards along inside workpiece, and
Returned after workpiece bottom is reached, form ultrasonic echo, can in turn after the ultrasonic echo reaches ultrasonic piezoelectric
Excitation ultrasound piezoelectric produces voltage signal (in this embodiment, can be described as second voltage signal).In practical applications, consider
To spread speed of the ultrasonic wave in workpiece, need to meet wanting for certain sampling duration for detecting for second voltage signal
Ask.For example,
It can meet that the sampling duration (also being understood as detection duration) of equation below samples (i.e. ultrasonic echo
Detection)：
Speed × the correction factor propagated using the ultrasonic wave of thickness × 2/ of duration ＞ workpiece in the material of workpiece, its
In, correction factor >=2..
Wherein, if just beginning to detection second voltage signal after excitation first voltage signal, it is possible to can not detect
To complete second voltage signal, therefore, correction factor can be determined as being more than or equal to 2, to guarantee to have time enough
To detect complete ultrasonic echo, in the present embodiment, according to practical experience, for example the correction factor can be preferably provided with
For 2.1, that is, the formula for sampling duration is：
Speed × 2.1 propagated using the ultrasonic wave of thickness × 2/ of duration ＞ workpiece in the material of workpiece.
In the implementation procedure of above-mentioned the present embodiment, two actions are mainly concerned with, one is the application ultrasound in S110
The action of ripple excitation signal, the other is the action of the detection ultrasonic echo in S120, the execution opportunity of this two actions can
It is configured according to actual conditions.
In one case, the action and the action of detection ultrasonic echo that may be configured as applying ultrasonic excitation signal are handed over
For progress, such as, it can perform the dynamic of one-time detection ultrasonic echo after the action of a ultrasonic excitation signal is applied
Make, this two kinds actions alternately, such a mode more suitable for processor switch speed it is very fast (such as switch speed nanosecond with
Under) and switching duration fix in the case of, by such a mode, first voltage signal and ultrasound as ultrasonic excitation signal
Interference will not be produced between second voltage signal caused by ripple echo, the second voltage signal detected has directly reacted ultrasound
Ripple echo, it is not necessary to carry out extra signal processing, detection efficiency is higher.
In the case of another, it may be configured as at least while the action of ultrasonic excitation signal is applied, beginning to perform
Detect the action of ultrasonic echo, that is to say, that apply the action and the action of detection ultrasonic echo of ultrasonic excitation signal
It is carried out at the same time, alternatively, the action of detection ultrasonic echo is earlier than the action for applying ultrasonic excitation signal, using such a mode,
Mainly consider in the case of ultrasonic echo speed there may be the action hysteresis of detection ultrasonic echo
Phenomenon, therefore so can may start the stage of detection by performing the detection of ultrasonic echo in advance or at the same time, certainly
It is not the signal of ultrasonic echo to detect some, but in practical applications, can in follow-up data processing procedure by those not
It is that the signal of ultrasonic echo is removed.
In another case, the action that may be configured as detection ultrasonic echo carries out always, can be in subsequent treatment mistake
In journey in all testing result data, identify the signal of ultrasonic echo and extracted, with based on ultrasonic echo
Carry out the operation such as inspection of workpiece.
In the present embodiment, ultrasonic wave is sent via the whole from surface to bottom of workpiece from the surface of ultrasonic piezoelectric
Body, and returned from workpiece bottom interface and produce ultrasonic echo, which have passed through the entirety of workpiece in the opposite direction,
Therefore, which can carry the Global Information of workpiece, and Work inspection device is carried out according to the analyzing and processing to the Global Information
(such as to workpiece into identification, state-detection etc.), also means that and carries out workpiece inspection according to the architectural characteristic of workpiece itself
Look into, with this, can be more convenient for subsequently being based on ultrasound echo data to Work inspection device behaviour such as workpiece progress identification, state-detections
Make, to improve efficiency and accuracy rate to Work inspection device.
Embodiment two
As shown in figure 3, the structure diagram of the ultrasonic echo detection device for the present embodiment, which can wrap
Include：Cathode probe 31, anode probe 32, ultrasonic excitation device 33 and ultrasonic echo collector 34, wherein：
Cathode probe 31 and anode probe 32, contact respectively available for the positive and negative electrode with the ultrasonic piezoelectric on workpiece.
Wherein, cathode probe 31, anode probe 32 can be directly arranged on the device 30, and the device 30 can be also connected to by lead.
Referring to shown in Fig. 4-1,4-2,4-3, in the present embodiment, the device 30 may be configured as circular in cross-section (such as
Cylinder shown in Fig. 4-2), cathode probe 31 and anode probe 32 may be disposed on the end face of device 30, which may include
Endocyclic area 301, middle annular zone 302 and outer region 303.
By taking ultrasonic piezoelectric 20 piezoelectric ceramics as shown in Figure 2 as an example, cathode probe 31 may be disposed at and ultrasonic piezoelectricity
The 201 corresponding position of circular cathode (namely in endocyclic area 301) of material 20, for ultrasonic piezoelectric (such as
Piezoelectric ceramics) circular cathode 201 abut against；Anode probe 32 may be disposed at the circular ring shape anode with ultrasonic piezoelectric 20
202 corresponding positions (namely in outer region 303), for the circular ring shape with ultrasonic piezoelectric (such as piezoelectric ceramics)
Anode 202 abuts against.
In practical applications, ultrasonic piezoelectric 20 can be encapsulated in workpiece surface, in the event of encapsulation, can seal
The surface of assembling structure sets contact corresponding with the positive and negative electrode of ultrasonic piezoelectric, for example, in structure as shown in Figure 2, circle
Annular anode 202 and circular cathode 201 can be encapsulated by insulating materials, but be corresponded in circular ring shape anode 202 and circular cathode 201
Region on can be provided with multiple contacts, for by lead or directly with the detection device 30 of the embodiment of the present invention just
Pole probe 31 and anode probe 32 are in contact.
Ultrasonic excitation device 33,32 is electrically connected with cathode probe 31 and anode probe, for popping one's head in 31 and anode to cathode
Probe 32 applies the first voltage signal for excitation ultrasound ripple.
As described in previous methods, first voltage signal can be that N number of (such as 1 to 5) has predeterminated frequency, default amplitude
And the voltage signal of predetermined pulse number, the first voltage signal can use square wave, therefore, ultrasonic excitation device 33 can use
Square voltage pulse generator.
Wherein, specific amplitude can be returned according to the characteristic of ultrasonic piezoelectric and/or the ultrasonic wave of detection ultrasonic echo
The resolution ratio of ripple collector determines, generally can change in the range of 16V (volt) -110V (volt)；Pulse number and pulse
Data are directly proportional, and pulse data can cause the phenomenon of first voltage signal and second voltage Signal averaging too much, therefore, also need
Suitable pulse number is set according to being actually needed.
Ultrasonic echo collector 34, can be electrically connected with cathode probe 31 and anode probe 32, be returned for detecting ultrasonic wave
Second voltage signal caused by ripple excitation ultrasound piezoelectric 20.
As described in embodiment one, after workpiece surface produces ultrasonic wave, ultrasonic wave is propagated downwards by workpiece, and
Returned after reaching workpiece bottom, form ultrasonic echo, after the ultrasonic echo reaches ultrasonic piezoelectric, can swashed in turn
The ultrasonic piezoelectric of hair produces the second piezoelectric signal, second piezoelectric signal can be popped one's head in by cathode 31 and anode probe 32 come
Detect.
Since ultrasonic echo can be overall via inside workpiece, the Global Information of workpiece can be carried, based on the entirety
Information, can be more convenient for subsequently checking workpiece (such as to workpiece into identification, state-detection etc.), can be improved pair with this
The efficiency and accuracy rate of Work inspection device.
In addition, referring to shown in Fig. 5, which may also include temperature sampler 36 and temp probe 35, temp probe 35
It is electrically connected with temperature sampler 36, temp probe 35 can be used for abutting with workpiece and conducting temperature signal to temperature sampler
36。
In practical applications, temp probe 35 can be existing temperature sensor, for example optional accuracy of detection is higher
The temperature sensor of model PT1000, and cathode probe 31 can be arranged at damascene structures for the temperature sensor or anode is visited
In first 32, can also use magnetic-type structure setting in cathode probe 31 on or anode probe 32 on, certainly, using above-mentioned insertion
Structure, is more simplified from a structural point, and then may be such that the overall structure of device 30 is more simplified.
With this, the temperature of workpiece can be also further detected while ultrasonic echo is detected, since temperature is in itself to super
Sound echo has a certain impact, therefore, can according to the temperature data detected for subsequently based on ultrasonic echo to workpiece into
Row, which checks, provides certain correcting action, to improve the accuracy rate of Work inspection device result.
Referring to shown in Fig. 6, in another embodiment, which may also include controller 37, and controller 37 can be with ultrasound
Wave-exciting device 33, ultrasonic echo collector 34.Wherein, controller 37 can be used for control ultrasonic excitation device 33 and ultrasonic wave to return
Ripple collector 34 performs the action for applying ultrasonic excitation signal and the action of perform detection ultrasonic echo respectively.In addition, control
Device 37 processed can also be connected with temperature sampler 36, for controlling the work of temperature sampler 36 and receiving temperature sampler
36 temperature datas sent simultaneously analyze and process etc..
In an implementation mode, controller 37 can control ultrasonic excitation device 33 and ultrasonic echo collector 34 each other
Work alternatively.For example controllable ultrasonic excitation device 33 controls ultrasonic wave after the action of a ultrasonic excitation signal is applied
Echo acquirement device 34 perform one-time detection ultrasonic echo action, this two kinds action alternately, such a mode more suitable for
In the case of in the case of processor switch speed very fast (for example switch speed is below nanosecond) and switching duration fixation, pass through
Such a mode, as between second voltage signal caused by the first voltage signal and ultrasonic echo of ultrasonic excitation signal
Interference will not be produced, the second voltage signal detected has directly reacted ultrasonic echo, it is not necessary to carries out at extra signal
Reason, detection efficiency are higher.
Under another implementation, controller 37 is controllable at least to apply ultrasonic excitation letter in ultrasonic excitation device 33
Number action while start, ultrasonic echo collector 34 begins to the action of perform detection ultrasonic echo.It is such as controllable
Ultrasonic excitation device 33 processed applies the action of ultrasonic excitation signal and ultrasonic echo collector 34 detects ultrasonic echo
Action is carried out at the same time, alternatively, the action that ultrasonic echo collector 34 detects ultrasonic echo is applied earlier than ultrasonic excitation device 33
Add the action of ultrasonic excitation signal, using such a mode, mainly consider in the case of ultrasonic echo speed,
There may be the phenomenon of the action hysteresis of detection ultrasonic echo, therefore can be by performing ultrasonic echo in advance or at the same time
Detection, certainly, may so detect that some are not the signal of ultrasonic echo, but actually should in the stage for starting detection
Can not be that the signal of ultrasonic echo is removed by those in follow-up data processing procedure in.
Certainly, also there are a kind of situation, controller 37 can control ultrasonic echo collector 34 to detect ultrasonic echo
Action carries out always, can identify the signal of ultrasonic echo in subsequent processes in all detection data
And extracted, to carry out the operation such as inspection of workpiece based on ultrasonic echo.
In practical applications, controller 37 can be additionally used in the sampling duration for setting ultrasonic echo collector 34, during sampling
Length can meet equation below：
Speed × the correction factor propagated using the ultrasonic wave of thickness × 2/ of duration ＞ workpiece in the material of workpiece, its
In, correction factor >=2..
Wherein, if first voltage signal, which has just been sent, begins to detection second voltage signal, it is possible to can not detect
Correction factor, therefore, can be determined as being more than or equal to 2 by complete second voltage signal, with guarantee to have time enough with
Detect complete ultrasonic echo, in the present embodiment, according to practical experience, for example the correction factor can be preferably arranged to
2.1, that is, sample duration formula be：The speed propagated using the ultrasonic wave of thickness × 2/ of duration ＞ workpiece in the material of workpiece
×2.1。
In specific implementation, the second voltage signal that ultrasonic echo collector 34 can also be used to collect is converted to number
Word information is simultaneously sent to controller 37, and based on this, controller 37 can also be used to digital information being sent to background server, so as to
Server carries out the operation such as analyzing and processing based on digital information, and to be more convenient for, server carries out at analysis second voltage signal
Reason, improves the treatment effeciency of server.
In the present embodiment, ultrasonic wave from the surface that ultrasonic piezoelectric is set send downward via workpiece entirety and from
Workpiece bottom, which returns, produces ultrasonic echo, which have passed through the entirety of workpiece in the opposite direction, therefore, the ultrasound
Ripple echo can carry the Global Information of workpiece, according to carrying out Work inspection device to the analyzing and processing of the Global Information (such as to workpiece
Into identification, state-detection etc.), also mean that and Work inspection device is carried out according to the architectural characteristic of workpiece itself, can be more with this
The performance reviews such as identification, state-detection operation is carried out to workpiece easy to subsequently be based on ultrasound echo data, with raising pair
The efficiency and accuracy rate of Work inspection device.
Meanwhile the output of ultrasonic excitation device and the input of ultrasonic echo collector have shared a pair of of positive and negative electrode probe,
So so that the structure of the ultrasonic echo detection device is more simplified.In addition, positive and negative electrode probe connects with ultrasonic piezoelectric
Touch, on the one hand can apply the voltage signal of excitation ultrasound ripple to ultrasonic piezoelectric, on the other hand detectable ultrasonic echo swashs
Voltage signal caused by the ultrasonic piezoelectric of hair, its voltage signal collected can be used for subsequently based on ultrasonic echo to work
Part is checked, to improve the efficiency of Work inspection device and accuracy rate.
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention is described in detail with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：
It can still modify the technical solution described in foregoing embodiments, either special to which part or whole technologies
Sign carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from each reality of the utility model
Apply the scope of a technical solution.
Claims (9)
- A kind of 1. ultrasonic echo detection device, it is characterised in that including：The cathode probe and anode probe contacted respectively for the cathode and anode with the ultrasonic piezoelectric on workpiece；Ultrasonic excitation device, with the cathode probe and the anode probe is electrically connected, for the cathode pop one's head in it is described Anode probe applies the first voltage signal for excitation ultrasound ripple；Ultrasonic echo collector, is electrically connected with cathode probe and anode probe, swashs for detecting ultrasonic echo Send out caused by ultrasonic piezoelectric second voltage signal described.
- 2. detection device according to claim 1, it is characterised in that temperature sampler and temp probe are further included, it is described Temp probe is electrically connected with the temperature sampler, for being abutted with workpiece and conducting temperature signal to the temperature acquisition Device.
- 3. detection device according to claim 1, it is characterised in that the cathode probe and anode probe are arranged at transversal On the end face of the rounded detection device in face, the cathode probe is arranged at corresponding with the circular cathode of ultrasonic piezoelectric Position, the anode probe are arranged at the corresponding position of circular ring shape anode with ultrasonic piezoelectric.
- 4. detection device according to claim 1, it is characterised in that the ultrasonic excitation device is sent out for square voltage pulse Raw device.
- 5. detection device according to claim 4, it is characterised in that the ultrasonic excitation device is with default amplitude, frequency The first voltage signal of rate and pulse number output square pulse.
- 6. detection device according to claim 4, it is characterised in that further include and the ultrasonic excitation device and described super The controller of sound echo collector connection, the controller are used to control the ultrasonic excitation device and the ultrasonic echo Collector performs the action for applying ultrasonic excitation signal and the action of perform detection ultrasonic echo respectively, and makes the ultrasound Wave-exciting device and the ultrasonic echo collector work alternating with each other.
- 7. detection device according to claim 4, it is characterised in that further include and the ultrasonic excitation device and described super The controller of sound echo collector connection, the controller are used to control the ultrasonic excitation device and the ultrasonic echo Collector performs the action for applying ultrasonic excitation signal and the action of perform detection ultrasonic echo respectively, and at least to exist While the action that the ultrasonic excitation device applies ultrasonic excitation signal starts, the ultrasonic echo collector is begun to The action of perform detection ultrasonic echo.
- 8. the detection device according to claim 6 or 7, it is characterised in that the controller is additionally operable to set the ultrasound The sampling duration of ripple echo acquirement device, the sampling duration meet equation below：Speed × the correction factor propagated using the ultrasonic wave of thickness × 2/ of duration ＞ workpiece in the material of the workpiece, its In, correction factor >=2.
- 9. the detection device according to claim 6 or 7, it is characterised in that the ultrasonic echo collector be additionally operable to by The second voltage signal detected is converted to digital information and is sent to the controller, and the controller is additionally operable to the number Word information is sent to background server.
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| CN201721108317.2U CN207366513U (en) | 2017-08-31 | 2017-08-31 | Ultrasonic echo detection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462637A (en) * | 2017-08-31 | 2017-12-12 | 北京金风慧能技术有限公司 | Ultrasonic echo detection method and device |
| CN114247053A (en) * | 2022-01-26 | 2022-03-29 | 云南贝泰妮生物科技集团股份有限公司 | Self-adaptive frequency conversion system for radio frequency beauty instrument |
-
2017
- 2017-08-31 CN CN201721108317.2U patent/CN207366513U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462637A (en) * | 2017-08-31 | 2017-12-12 | 北京金风慧能技术有限公司 | Ultrasonic echo detection method and device |
| CN114247053A (en) * | 2022-01-26 | 2022-03-29 | 云南贝泰妮生物科技集团股份有限公司 | Self-adaptive frequency conversion system for radio frequency beauty instrument |
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