CN104215581B - A kind of device and method for detecting ultrasonic cavitation intensity - Google Patents
A kind of device and method for detecting ultrasonic cavitation intensity Download PDFInfo
- Publication number
- CN104215581B CN104215581B CN201410370217.1A CN201410370217A CN104215581B CN 104215581 B CN104215581 B CN 104215581B CN 201410370217 A CN201410370217 A CN 201410370217A CN 104215581 B CN104215581 B CN 104215581B
- Authority
- CN
- China
- Prior art keywords
- optical signal
- cavitation
- optical fiber
- detection section
- optical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The present invention relates to a kind of device and method for detecting ultrasonic cavitation intensity, the device includes：Light source generator, for producing optical signal；Optical splitter, for the optical signal to be divided into identical two ways of optical signals, wherein optical signal sends detection section optical fiber to all the way, another road optical signal sends reference field optical fiber to；The reference field optical fiber, is placed in non-cavitating area；The detection section optical fiber is placed in cavitation area, impact of the shock wave and microjet produced due to bubble collapse to the detection section optical fiber, the optical signal in the detection section optical fiber is changed；Detection module, for obtaining the ultrasonic cavitation strength information in cavitation area by detecting and comparing detection section optical signal and reference field optical signal.The present invention realizes the transient state information that cavitation intensity is obtained in the case where influenceing very little to cavitation field, and has application value in terms of quantitative assessment ultrasonic cleaning device harmony chemical device performance, the field distribution of measurement cavitation, monitoring cavitation field change.
Description
Technical field
The present invention relates to ultrasonic cavitation field, more particularly to a kind of device and method for detecting ultrasonic cavitation intensity.
Background technology
It is cleaned by ultrasonic and phonochemistry is all mainly the cavitation effect that make use of ultrasonic wave, in machinery, medicine, electronics, chemical industry
Etc. in industry using quite varied.Cavitation refer to drop of pressure when liquid to it is sufficiently low when liquid hollow bubble generation and thereafter
Continuous dynamic behavior, its main forms are that the micro-bubble of substantial amounts of continuous harmomegathus occur in liquid, and these bubbles are pressed
Produced according to the moment in cycle of ultrasonic wave and moment crumbles and fall, form the cloud and mist of bubble.These bubbles can produce impact when crumbling and fall
Ripple, can move and be formed the microjet beaten to wall when wall is pressed close to towards wall.Because these characteristics of cavitation make sky
The measurement for changing field is extremely difficult.Conventional method has aluminium foil cavitation corrosion method, hydrophone, iodine release etc., and these methods are all deposited
In obvious shortcoming.Aluminium foil cavitation corrosion method evaluates the power of cavitation field using the cavitation corrosion effect of aluminium foil, but this method is not very smart
Really, it is impossible to quantitative measurment, repeatability is very poor, and the presence of aluminium foil can influence cavitation field, measurement is deviateed truth；Water
It is to reflect cavitation intensity indirectly using measuring acoustic pressure to listen device method, and this method is not the information of direct reflection cavitation field, a lot
In the case of pressure field and cavitation field and non-equivalence, and hydrophone probe diameter is larger, can produce influence, cavitation meeting to cavitation field
Hydrophone surface is occurred cavitation corrosion, hydrophone is damaged failure；Iodine release is reflected indirectly using the chemical effect of cavitation
Cavitation intensity, this chemical method and indicator relation used are very big, and with cavitation intensity and nonlinear correlation, in addition this side
Method can not reflect the distribution character of cavitation field.At present still without it is a kind of it is good evaluation cavitation effect method or index, each
Ultrasonic cleaning device producer often acts on one's own, and which is better and which is worse to compare for cavitation intensity, causes market to mix very much opinion.
The content of the invention
The purpose of the present invention is that the deficiency existed for existing ultrasonic cavitation intensity detection technology detects super there is provided one kind
The device and method of acoustic cavitation intensity.
To achieve the above object, on the one hand, the invention provides a kind of device for detecting ultrasonic cavitation intensity, the device bag
Include：
Light source generator, for producing optical signal；
Optical splitter, is connected with light source generator, and the optical signal for light source generator to be produced is divided into identical two-way light
Signal, wherein optical signal sends detection section optical fiber to all the way, another road optical signal sends reference field optical fiber to；
Reference field optical fiber, is placed in non-cavitating area；
Section optical fiber is detected, is placed in cavitation area, the shock wave and microjet produced due to bubble collapse is to detection section optical fiber
Impact, make detection section optical fiber in optical signal change；
Detection module, is connected with reference field optical fiber and detection section optical fiber, for by detecting and comparing detection Duan Guang respectively
Signal and reference field optical signal obtain the ultrasonic cavitation strength information in cavitation area.
On the other hand, the invention provides the device of another detection ultrasonic cavitation intensity, the device includes：
Light source generator, for producing optical signal；
First optoisolator, for optical signal to be one-way transmitted into cavitation area detection section optical fiber；
Detection module, raster center transmission peak wavelength information or raster center reflection wavelength information are obtained according to optical signal, are led to
Cross raster center transmission peak wavelength information or raster center reflection wavelength information acquisition cavitation area's ultrasonic cavitation strength information.
Another aspect, the invention provides a kind of method for detecting ultrasonic cavitation intensity, this method comprises the following steps：
Produce optical signal；
Optical signal is divided into identical two ways of optical signals, wherein optical signal sends detection section optical fiber, another road light to all the way
Signal sends reference field optical fiber to；The reference field optical fiber is placed in non-cavitating area, and the detection section optical fiber is placed in cavitation area；
The ultrasonic cavitation strength information in cavitation area is obtained by detecting and comparing detection section optical signal and reference field optical signal.
The device and method for the detection ultrasonic cavitation intensity that the present invention is provided, which is realized, is influenceing the feelings of very little on cavitation field
The transient state information of cavitation intensity is obtained under condition, and in quantitative assessment ultrasonic cleaning device harmony chemical device performance, measurement cavitation
There is application value in terms of field distribution, monitoring cavitation field change.
Brief description of the drawings
Fig. 1 (a) illustrates for the application scenarios of the device cavitation field of detection ultrasonic cavitation intensity provided in an embodiment of the present invention
Figure；
Fig. 1 (b) is application scenarios of the device in water conservancy industry of detection ultrasonic cavitation intensity provided in an embodiment of the present invention
Schematic diagram；
Fig. 2 is a kind of apparatus structure schematic diagram for detecting ultrasonic cavitation intensity provided in an embodiment of the present invention；
Fig. 3 is another apparatus structure schematic diagram for detecting ultrasonic cavitation intensity provided in an embodiment of the present invention；
Fig. 4 is the apparatus structure schematic diagram of another detection ultrasonic cavitation intensity provided in an embodiment of the present invention；
Fig. 5 is a kind of apparatus structure schematic diagram for detecting ultrasonic cavitation intensity provided in an embodiment of the present invention；
Fig. 5 (a) is another apparatus structure schematic diagram for detecting ultrasonic cavitation intensity provided in an embodiment of the present invention；
Fig. 5 (b) is the apparatus structure schematic diagram of another detection ultrasonic cavitation intensity provided in an embodiment of the present invention；
Fig. 6 is a kind of method flow schematic diagram for detecting ultrasonic cavitation intensity provided in an embodiment of the present invention；
Fig. 7 be the embodiment of the present invention in realize cavitation intensity point measurement schematic diagram；
Fig. 8 be the embodiment of the present invention in realize cavitation intensity line measurement schematic diagram；
Fig. 9 is to realize the schematic diagram of cavitation intensity planar survey in the embodiment of the present invention；
Figure 10 is to realize the schematic diagram of cavitation intensity bulk measurement in the embodiment of the present invention.
Embodiment
After embodiments of the present invention are described in detail by way of example below in conjunction with accompanying drawing, of the invention its
His characteristics, features and advantages will be more obvious.
Fig. 1 (a) shows for the device of detection ultrasonic cavitation intensity provided in an embodiment of the present invention in the application scenarios of cavitation field
It is intended to.As shown in Fig. 1 (a), the optical signal that light source generator is produced is divided into identical two ways of optical signals, wherein optical signal all the way
Send detection section optical fiber to, another road optical signal sends reference field optical fiber to.Reference field optical fiber is placed in non-cavitating area, detection
Section optical fiber is placed in cavitation area, and the vacuole in cavitation area is formed by the ultrasonic activation that ultrasonic transducer is produced.Due to sky
Impact of the shock wave and microjet that bubble collapse in change area is produced to detection section optical fiber, makes the optical signal in detection section optical fiber
Change.Ultrasonic cavitation finally again by detecting and comparing detection section optical signal and reference field optical signal acquisition cavitation area is strong
Spend information.
Fig. 1 (b) is application scenarios of the device in water conservancy industry of detection ultrasonic cavitation intensity provided in an embodiment of the present invention
Schematic diagram.Dam and flood discharging tunnel are very high due to the speed of flow of fluid, in some regions formation low-pressure area, it is prone to cavitation,
So as to cause the cavitation erosion of dam and flood discharging tunnel.The generation of cavitation corrosion, directly affects the life-span of hydraulic structure, or even causes whole
The accident of individual building.The embodiment of the present invention can be used for the cavitation erosion of monitoring hydraulic structure, not influence the premise of operation
Under determination cavitation corrosion promptly and accurately position and degree.It is the schematic diagram of flood discharging tunnel in figure, in flood discharging tunnel as shown in Fig. 1 (b)
Ogee section end and downstream are prone to cavitation erosion (pore represents cavitation area), top layer and hydraulic structure in this region
Internal (being laid in interior of building in advance when building flood discharging tunnel) is layered laying optical fiber net by different depth, can be in real time or regular
Detection each optical fiber signal.If cavitation erosion occurs for a certain region, hydraulic structure produces cavitation corrosion hole, makes bare optical
Cavitation corrosion area is exposed at, fiber-optic signal is abnormal, then just can judge it is which longitude and latitude region there occurs cavitation corrosion by detection fiber signal, it is empty
Pit has developed more deep etc. information.So as to scent a hidden danger in time, reduce and shut down artificial check.Fig. 1 (b) is side, sectional
Chain-dotted line below figure, ogee section represents optical fiber layer, and each layer of optical fiber layer is net distribution (referring to Fig. 1 (b) lower left corners).
Fig. 2 is a kind of apparatus structure schematic diagram for detecting ultrasonic cavitation intensity provided in an embodiment of the present invention.Such as Fig. 2 institutes
Show, the device includes light source generator 100, optical splitter 200, detection module 300, detection section optical fiber and reference field optical fiber, wherein
Light source generator 100 is used to produce optical signal；The optical signal that optical splitter 200 is used to produce light source generator 100 is divided into identical
Two ways of optical signals, wherein all the way optical signal send to detection section optical fiber, another road optical signal sends reference field optical fiber to, above-mentioned
Reference field optical fiber is placed in non-cavitating area, and detection section optical fiber is placed in cavitation area；The shock wave that bubble collapse is produced in cavitation area
Impact with microjet to detection section optical fiber, makes the optical signal in detection section optical fiber change.Detection module 300 respectively with ginseng
Section optical fiber and the optical fiber connection of detection section are examined, cavitation area is obtained by detecting and comparing detection section optical signal and reference field optical signal
Ultrasonic cavitation strength information.
It should be noted that in order to strengthen detection effect and test effect, can be in reference field optical fiber and detection section optical fiber
On stamp micropore or carve with groove, make vacuole be easy to reside in micropore or groove；Simultaneously in reference field optical fiber and detection Duan Guang
Sheath is set on fibre, to avoid optical fiber from being influenceed from cavitation, control test segment limit.
The embodiment of the present invention is not only applicable to the detection of ultrasonic cavitation, is also applied for Hydrodynamic cavitation or the inspection of other cavitations
Survey.The device and method of detection ultrasonic cavitation intensity provided in an embodiment of the present invention, which is realized, is influenceing the feelings of very little on cavitation field
The online transient state information for obtaining cavitation intensity under condition, and in quantitative assessment ultrasonic cleaning device harmony chemical device performance, measurement
There is application value in terms of cavitation field distribution, monitoring cavitation field change.
Fig. 3 is another apparatus structure schematic diagram for detecting ultrasonic cavitation intensity provided in an embodiment of the present invention.Such as Fig. 3 institutes
Show, the difference of itself and the device of the detection ultrasonic cavitation intensity shown in Fig. 2 is：Detection module 300 includes the first opto-electronic conversion
Device 310, the second optical-electrical converter 311 and analytic unit 312, the first optical-electrical converter 310 are connected with detection section optical fiber, the second light
Electric transducer 311 is connected with reference field optical fiber, analytic unit 312 respectively with the first optical-electrical converter 310 and the second opto-electronic conversion
Device 311 is connected.
The course of work of the device of detection ultrasonic cavitation intensity shown in Fig. 3 is as follows：
Light source generator 100 produces optical signal, and the optical signal that light source generator 100 is produced is divided into identical by optical splitter 200
Two ways of optical signals, wherein optical signal sends detection section optical fiber to all the way, another road optical signal sends reference field optical fiber to, refers to
Section optical fiber is placed in non-cavitating area, and detection section optical fiber is placed in cavitation area.First optical-electrical converter 310 and the second optical-electrical converter
The optical signal of reception is converted into electric signal by 311 respectively.Due to a large amount of vacuoles detect section optical fiber annex crumble and fall when it is produced
Shock wave and microjet can be beaten in optical fiber surface, optical fiber is produced instantaneous small bending, and fiber microbending loss can cause light work(
Rate changes, therefore analyzes the electrical signal amplitude after detection section optical signal is changed and reference field optical signal turn by analytic unit 312
Electrical signal amplitude after changing determines the ultrasonic cavitation strength information in cavitation area.
It should be noted that analytic unit 312 again may be by comparing before cavitation occurs after the conversion of detection section optical signal
Electrical signal amplitude and cavitation occur after electrical signal amplitude after the optical signal conversion of detection section determine the ultrasonic cavitation in cavitation area
Strength information.
Fig. 4 is the apparatus structure schematic diagram of another detection ultrasonic cavitation intensity provided in an embodiment of the present invention.Such as Fig. 4 institutes
Show, the difference of itself and the device of the detection ultrasonic cavitation intensity shown in Fig. 2 is：Detection module 300 includes coupler 320, light
Electric transducer 321 and analytic unit 322, the wherein input of coupler 320 are connected with reference field optical fiber and detection section optical fiber respectively,
Its output end is connected with the import and export end of optical-electrical converter 321, and the output end of optical-electrical converter 321 is connected with analytic unit 322.
The course of work of the device of detection ultrasonic cavitation intensity shown in Fig. 4 is as follows：
Light source generator 100 produces optical signal, and the optical signal that light source generator 100 is produced is divided into identical by optical splitter 200
Two ways of optical signals, wherein optical signal sends detection section optical fiber to all the way, another road optical signal sends reference field optical fiber to.Coupling
Device 320 will detect section optical signal and reference field optical signal synthesis optical signal all the way, and optical-electrical converter 321 is by the light after synthesizing all the way
Signal is converted into electric signal, and due to a large amount of vacuoles, when detecting that section optical fiber annex is crumbled and fall, produced shock wave and microjet can be beaten
In optical fiber surface, photoelastic effect can be produced in inside of optical fibre, the phase of optical signal is changed, therefore pass through analytic unit
322 analyze the phase of the electric signal after conversion to determine the ultrasonic cavitation strength information in cavitation area.
Fig. 5 is a kind of apparatus structure schematic diagram for detecting ultrasonic cavitation intensity provided in an embodiment of the present invention.Such as Fig. 5 institutes
Show, the device includes light source generator 100, optoisolator 400, detection module 500, wherein, light source generator 100 is used to produce
Optical signal is one-way transmitted to the detection section optical fiber where cavitation area by optical signal, optoisolator 400, and detection module 500 is gathered simultaneously
Analyze before cavitation and optical signal obtains cavitation area's ultrasonic cavitation strength information after cavitation.
Fig. 5 (a) is another apparatus structure schematic diagram for detecting ultrasonic cavitation intensity provided in an embodiment of the present invention.As schemed
Shown in 5 (a), the difference of itself and the device of the detection ultrasonic cavitation intensity shown in Fig. 5 is：Detection module 500 includes coupler
510th, grating 520, the second optoisolator 530, optical-electrical converter 540 and analytic unit 550, wherein, the input of coupler 510
Detection section optical fiber with cavitation area is connected, and its output end is connected with the input of grating 520；The input of second optoisolator 530
End is connected with the output end of grating 520, and its output end is connected with the input of optical-electrical converter 540；The input of analytic unit 550
End is connected with the output end of optical-electrical converter 540.
The course of work of the device of detection ultrasonic cavitation intensity shown in Fig. 5 (a) is as follows：
Light source generator 100 produces optical signal, and the optical signal that optoisolator 400 produces light source generator 100 is unidirectionally passed
The detection section optical fiber transported to where cavitation area, optical signal is transmitted to grating 520 by coupler 510, and light is obtained by grating 520
The raster center transmission peak wavelength information of signal, the second optoisolator 530 is unidirectional by the raster center transmission peak wavelength information of optical signal
Transmit to optical-electrical converter 540, due to a large amount of vacuoles shock wave and microjet produced when detecting that section optical fiber annex is crumbled and fall
It can beat in optical fiber surface, fiber core is effectively reflected and change, and then raster center transmission peak wavelength is changed, therefore
The raster center transmission peak wavelength information acquisition cavitation area ultrasound analyzed by analytic unit 550 before cavitation with optical signal after cavitation is empty
Change strength information.
Fig. 5 (b) is the apparatus structure schematic diagram of another detection ultrasonic cavitation intensity provided in an embodiment of the present invention.As schemed
Shown in 5 (b), the difference of itself and the device of the detection ultrasonic cavitation intensity shown in Fig. 5 is：Detection module 500 includes coupler
510th, the input of grating 520, the second optoisolator 530, optical-electrical converter 540 and analytic unit 550, wherein coupler 510
It is connected respectively with detection section optical fiber, the output end of grating 520, input, the second optoisolator of its output end respectively with grating 520
530 input connection；The output end of second optoisolator 530 is connected with the input of optical-electrical converter 540；Analytic unit
550 input is connected with the output end of optical-electrical converter 540.
The course of work of the device of detection ultrasonic cavitation intensity shown in Fig. 5 (b) is as follows：
Light source generator 100 produces optical signal, and the optical signal that optoisolator 400 produces light source generator 100 is unidirectionally passed
The detection section optical fiber transported to where cavitation area, optical signal is transmitted to grating 520 by coupler 510, after the reflected light of grating 520 again
The second optoisolator 530 is transferred to by coupler 510, the second optoisolator 530 is unidirectional by raster center reflection wavelength information
Transmit to optical-electrical converter 540, after being converted into electric signal through optical-electrical converter 540, by analytic unit 550 by analyzing before cavitation
With the raster center reflection wavelength information acquisition cavitation intensity information after cavitation.
The device of detection ultrasonic cavitation intensity provided in an embodiment of the present invention, which is realized, is influenceing the feelings of very little on cavitation field
The transient state information of cavitation intensity is obtained under condition, and in quantitative assessment ultrasonic cleaning device harmony chemical device performance, measurement cavitation
There is application value in terms of field distribution, monitoring cavitation field change.
Fig. 6 is a kind of method flow schematic diagram for detecting ultrasonic cavitation intensity provided in an embodiment of the present invention.Such as Fig. 6 institutes
Show, the method comprising the steps of 601-603：
Step 601, optical signal is produced.
Specifically, optical signal is produced by the light source of the device of detection ultrasonic cavitation intensity, light source can be laser, polarization
Light, glow discharge spot lamp or light emitting diode etc..
Step 602, optical signal is divided into identical two ways of optical signals, wherein optical signal sends detection section optical fiber to all the way,
Another road optical signal sends reference field optical fiber to；Reference field optical fiber is placed in non-cavitating area, and detection section optical fiber is placed in cavitation area.
Specifically, the optical signal that light source is produced is divided into the optical signal of identical two by the device of detection ultrasonic cavitation intensity,
Wherein optical signal sends detection section optical fiber to all the way, and another road optical signal sends reference field optical fiber, detection section optical fiber and reference to
Section optical fiber sets the one or more in sheath, micropore and groove respectively.Reference field optical fiber is placed in non-cavitating area；Detect Duan Guang
Fibre is placed in cavitation area, and its arrangement can be configured as the case may be, and detection section fibre diameter is according to circumstances from several microns
To hundreds of microns, very carefully, very little is influenceed on sound field.
Step 603, the cavitation intensity in cavitation area is obtained by detecting and comparing detection section optical signal and reference field optical signal
Information.
Specifically, the device of detection ultrasonic cavitation intensity is by detecting and comparing detection section optical signal and reference field optical signal
Obtain the cavitation intensity information in cavitation area.
In one embodiment, the device of detection ultrasonic cavitation intensity will detect section optical signal and the reference field optical signal
It is separately converted to electric signal；By analyzing after electrical signal amplitude and the conversion of reference field optical signal after the optical signal conversion of detection section
Electrical signal amplitude determines the cavitation intensity information in cavitation area.The principle of the present embodiment be a large amount of vacuoles in cavitation area
Test optical fiber section shock wave produced when nearby crumbling and fall and microjet can be beaten in optical fiber surface, produce optical fiber instantaneous small
Bending, fiber microbending loss can cause optical power change, and cavitation intensity is obtained by analyzing the amplitude of the optical signal gathered
Information.
In another embodiment, the device of detection ultrasonic cavitation intensity will detect section optical signal and reference field light letter
Number synthesis optical signal all the way；Optical signal after synthesizing all the way is converted into electric signal；By the phase for analyzing the electric signal after conversion
Position determines the cavitation intensity information in cavitation area.The principle of the present embodiment is a large amount of vacuoles in cavitation area in test optical fiber section
Produced shock wave and microjet can be beaten in optical fiber surface when nearby crumbling and fall, and can be produced photoelastic effect in inside of optical fibre, be made light
The phase of signal is changed, and the information of cavitation intensity is obtained by analyzing the phase of the optical signal gathered.
In yet another embodiment, the device of detection ultrasonic cavitation intensity will detect that section optical signal and reference field optical signal are closed
Into optical signal all the way；Raster center transmission peak wavelength information is obtained according to the optical signal after synthesis all the way；By analyzing raster center
Transmission peak wavelength information determines the cavitation intensity information in cavitation area.The principle of the present embodiment is that a large amount of vacuoles in cavitation area exist
Produced shock wave and microjet can be beaten in detection section optical fiber surface when being crumbled and fall near detection section optical fiber, make detection section optical fiber fine
Core effective refractive index changes, and then raster center transmission peak wavelength is changed, the light of the optical signal by analyzing collection
Grid central homology wavelength obtains the information of cavitation intensity.
The method of detection ultrasonic cavitation intensity provided in an embodiment of the present invention can realize the point of cavitation intensity by optical fiber
Measure (schematic diagram is as shown in Figure 7), the line of cavitation intensity is measured (shown in schematic diagram institute Fig. 8), the planar survey (signal of cavitation intensity
Figure is as shown in Figure 9) and cavitation intensity bulk measurement (schematic diagram is as shown in Figure 10).When thang-kng fibre enter line measurement, planar survey and
During bulk measurement, the result of acquisition by be cavitation intensity spatial mean value on line, on face, on body evaluation.
The method of detection ultrasonic cavitation intensity provided in an embodiment of the present invention, which is realized, is influenceing the feelings of very little on cavitation field
The online transient state information for obtaining cavitation intensity under condition, and in quantitative assessment ultrasonic cleaning device harmony chemical device performance, measurement
There is application value in terms of cavitation field distribution, monitoring cavitation field change.
It is clear that on the premise of without departing from true spirit and scope of the present invention, invention described herein can be with
There are many changes.Therefore, it is all it will be apparent to those skilled in the art that change, be intended to be included in present claims
Within the scope of book is covered.Scope of the present invention is only defined by described claims.
Claims (11)
1. a kind of device for detecting ultrasonic cavitation intensity, it is characterised in that including：
Light source generator, for producing optical signal；
Optical splitter, for the optical signal to be divided into identical two ways of optical signals, wherein optical signal sends detection Duan Guang to all the way
Fibre, another road optical signal sends reference field optical fiber to；
Reference field optical fiber, is placed in non-cavitating region；
Section optical fiber is detected, is placed in cavitation area, the shock wave and microjet produced due to bubble collapse is to the detection section optical fiber
Impact, make it is described detection section optical fiber in optical signal change；
Detection unit, is connected with the reference field optical fiber and detection section optical fiber, for by detecting and comparing detection respectively
Section optical signal and reference field optical signal obtain the ultrasonic cavitation strength information of cavitation zone；
Wherein, micropore or groove are respectively arranged with the detection section optical fiber and the reference field optical fiber, while in the detection
Sheath is provided with section optical fiber and the reference field optical fiber.
2. the device of detection ultrasonic cavitation intensity according to claim 1, it is characterised in that the detection unit includes the
One optical-electrical converter, the second optical-electrical converter and analytic unit, first optical-electrical converter are connected with the detection section optical fiber,
For the detection section optical signal to be converted into electric signal；Second optical-electrical converter is connected with the reference field optical fiber, is used
In the reference field optical signal is converted into electric signal；The analytic unit and first optical-electrical converter and second light
Electric transducer is connected, for by analyzing electrical signal amplitude and the reference field optical signal after the detection section optical signal conversion
Electrical signal amplitude after conversion determines the ultrasonic cavitation strength information of cavitation zone.
3. the device of detection ultrasonic cavitation intensity according to claim 1, it is characterised in that the detection unit includes coupling
Clutch, optical-electrical converter and analytic unit, described coupler one end respectively with the reference field optical fiber and the detection section optical fiber
Connection, for the detection section optical signal and the reference field optical signal to be synthesized into optical signal all the way；The optical-electrical converter one
End is connected with the coupler other end, and the optical signal the coupler to be exported is converted into electric signal；The photoelectricity turns
The parallel operation other end is connected with the analytic unit, and the analytic unit is used for by analyzing the phase of the electric signal after conversion come really
Determine the ultrasonic cavitation strength information in cavitation zone.
4. a kind of device for detecting ultrasonic cavitation intensity, it is characterised in that including：
Light source generator, for producing optical signal；
First optoisolator, cavitation area detection section optical fiber is one-way transmitted to for the optical signal；
Detection module, raster center transmission peak wavelength information or raster center reflection wavelength information are obtained according to the optical signal, are led to
Cross the raster center transmission peak wavelength information or raster center reflection wavelength information acquisition cavitation area's ultrasonic cavitation strength information.
5. device according to claim 4, it is characterised in that the detection module include coupler, grating, the second light every
From device, optical-electrical converter and analytic unit；The input of the coupler is connected with the detection section optical fiber, its output end and institute
State the input connection of grating；The input of second optoisolator is connected with the output end of the grating, its output end with
The input connection of the optical-electrical converter；The input of the analytic unit is connected with the output end of the optical-electrical converter,
The analytic unit is believed by analyzing raster center transmission peak wavelength information acquisition cavitation area's ultrasonic cavitation intensity of the optical signal
Breath.
6. device according to claim 4, it is characterised in that the detection module include coupler, grating, the second light every
From device, optical-electrical converter and analytic unit；The input of the coupler is defeated with the detection section optical fiber and the grating respectively
Go out end connection, its output end is connected with the input of the grating and the input of second optoisolator respectively；Described
The output end of two optoisolators is connected with the input of the optical-electrical converter；The input of the analytic unit and the photoelectricity
The output end connection of converter, the analytic unit is empty by the raster center reflection wavelength information acquisition for analyzing the optical signal
Change area's ultrasonic cavitation strength information.
7. the device of the detection ultrasonic cavitation intensity described in any claim in claim 4 to 6, its feature exists
In the detection section optical fiber is provided with the one or more in sheath, micropore and groove.
8. a kind of method for detecting ultrasonic cavitation intensity, it is characterised in that this method includes：
Produce optical signal；
The optical signal is divided into identical two ways of optical signals, wherein optical signal sends detection section optical fiber, another road light to all the way
Signal sends reference field optical fiber to；The reference field optical fiber is placed in non-cavitating region, and the detection section optical fiber is placed in cavitation area
It is interior；Wherein, micropore or groove are respectively arranged with the detection section optical fiber and the reference field optical fiber, while in the detection section
Sheath is provided with optical fiber and the reference field optical fiber；
The ultrasonic cavitation strength information of cavitation zone is obtained by detecting and comparing detection section optical signal and reference field optical signal.
9. the method for detection ultrasonic cavitation intensity according to claim 8, it is characterised in that described by detecting and comparing
The cavitation intensity information Step that detection section optical signal and reference field optical signal obtain cavitation zone includes：
The detection section optical signal and the reference field optical signal are separately converted to electric signal；
By analyzing the electrical signal amplitude after the detection section optical signal conversion and the telecommunications after reference field optical signal conversion
Number amplitude determines the ultrasonic cavitation strength information of cavitation zone.
10. the method for detection ultrasonic cavitation intensity according to claim 8, it is characterised in that described by detecting and comparing
The cavitation intensity information Step that relatively detection section optical signal and reference field optical signal obtain cavitation zone includes：
The detection section optical signal and the reference field optical signal are synthesized into optical signal all the way；
Optical signal after the synthesis all the way is converted into electric signal；
The ultrasonic cavitation strength information in ultrasonic cavitation region is determined by analyzing the phase of the electric signal after the conversion.
11. the method for detection ultrasonic cavitation intensity according to claim 8, it is characterised in that described by detecting and comparing
The cavitation intensity information Step that relatively detection section optical signal and reference field optical signal obtain cavitation zone includes：
The detection section optical signal and the reference field optical signal are synthesized into optical signal all the way；
Raster center transmission peak wavelength information is obtained according to the optical signal after the detection section optical signal or the synthesis all the way；
The ultrasonic cavitation strength information of cavitation zone is determined by analyzing the raster center transmission peak wavelength information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410370217.1A CN104215581B (en) | 2014-07-30 | 2014-07-30 | A kind of device and method for detecting ultrasonic cavitation intensity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410370217.1A CN104215581B (en) | 2014-07-30 | 2014-07-30 | A kind of device and method for detecting ultrasonic cavitation intensity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104215581A CN104215581A (en) | 2014-12-17 |
| CN104215581B true CN104215581B (en) | 2017-08-25 |
Family
ID=52097301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410370217.1A Active CN104215581B (en) | 2014-07-30 | 2014-07-30 | A kind of device and method for detecting ultrasonic cavitation intensity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104215581B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548006B (en) * | 2015-11-27 | 2019-07-16 | 西安科技大学 | A kind of system detecting ultrasonic cavitation intensity |
| CN108051073A (en) * | 2017-12-12 | 2018-05-18 | 杭州国彪超声设备有限公司 | For the transmitter of ultrasonic cavitation ionization meter |
| CN108392751B (en) * | 2018-02-08 | 2019-07-16 | 浙江大学 | A kind of method of real-time monitoring High Intensity Focused Ultrasound treatment acoustic cavitation |
| CN108827876B (en) * | 2018-04-03 | 2020-04-28 | 中国科学院声学研究所 | Method for measuring cavitation cloud cavitation intensity |
| CN109883605B (en) * | 2019-02-28 | 2020-09-25 | 江苏大学 | Method for measuring impact wave pressure intensity in liquid medium and detection device |
| CN113893468B (en) * | 2020-06-22 | 2023-03-21 | 飞依诺科技(苏州)有限公司 | Method and device for adjusting therapeutic ultrasonic waves, computer equipment and storage medium |
| CN113783610A (en) * | 2021-04-09 | 2021-12-10 | 武汉飞沃科技有限公司 | Passive wavelength division fault detection system |
| CN113465656B (en) * | 2021-04-30 | 2023-08-15 | 潍坊嘉腾液压技术有限公司 | Tester for detecting fluid composite parameters and data processing method |
| CN113663622B (en) * | 2021-08-23 | 2022-12-23 | 飞依诺科技股份有限公司 | Ultrasonic cavitation parameter adjusting method and ultrasonic cavitation device |
| CN113916978A (en) * | 2021-08-26 | 2022-01-11 | 华能澜沧江水电股份有限公司 | Real-time monitoring method and system for cavitation of hydraulic tunnel during operation period based on audio |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101285702A (en) * | 2007-12-21 | 2008-10-15 | 西北工业大学 | Ultrasound suspending field visualized measurement method and its measuring systems |
| CN102322805A (en) * | 2011-08-26 | 2012-01-18 | 南京理工大学 | Detection device and detection method for maximum bubble radius of cavitating bubbles |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7367948B2 (en) * | 2002-08-29 | 2008-05-06 | The Regents Of The University Of Michigan | Acoustic monitoring method and system in laser-induced optical breakdown (LIOB) |
-
2014
- 2014-07-30 CN CN201410370217.1A patent/CN104215581B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101285702A (en) * | 2007-12-21 | 2008-10-15 | 西北工业大学 | Ultrasound suspending field visualized measurement method and its measuring systems |
| CN102322805A (en) * | 2011-08-26 | 2012-01-18 | 南京理工大学 | Detection device and detection method for maximum bubble radius of cavitating bubbles |
Non-Patent Citations (2)
| Title |
|---|
| Coated fiber-optic hydrophone for ultrasonic measurement;Christian Koch;《Ultrasonics》;19990211;第34卷(第6期);第688-689页 * |
| Measurement of ultrasonic pressure by heterodyne interferometry with a fiber-tip sensor;Christian Koch;《APPLIED OPTICS》;19990501;第38卷(第13期);第2813页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104215581A (en) | 2014-12-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104215581B (en) | A kind of device and method for detecting ultrasonic cavitation intensity | |
| CN105424163B (en) | INDIRECT COUPLING cone optical-fiber grating sonac | |
| CN106248795B (en) | Ultrasonic fault detection system, defect detection on ultrasonic basis and airframe body | |
| CN105067104B (en) | Composite optical fiber sensing system and sensing method | |
| CN106323444B (en) | Inclined optical fiber grating ultrasonic sensor | |
| CN102175771B (en) | Method for detecting steel tube void of concrete filled steel tube (CFST) arch bridge by utilizing transient impact method | |
| CN105806270B (en) | A kind of detection method of material surface micro-crack depth | |
| CN110071762A (en) | A kind of less fundamental mode optical fibre fault detection method based on higher order mode back rayleigh scattering | |
| CN110360945A (en) | Pipe deforming monitoring and palm early warning system and method based on BOTDR | |
| CN105277270B (en) | A kind of double mode vibration-detection system based on optical fiber grating sensing | |
| CN104020179A (en) | Corrugated pipe grouting compactness detecting device and method based on fiber bragg grating sensing technology | |
| CN204008435U (en) | A kind of device that detects ultrasonic cavitation intensity | |
| CN104818735A (en) | Exploring drill bit and method for detecting pile foundation by using exploring drill bit | |
| CN109030497B (en) | Concrete structure crack automatic monitoring system | |
| CN108168923B (en) | Method for measuring dam collapse risk of concrete gravity danger dam | |
| CN101818640A (en) | Fully distributed device and method for monitoring underground working temperature of oil-water well based on Raman scattered light time-domain reflectometer | |
| CN113447411B (en) | System and method for measuring concentration of silt in water body by using optical fiber sensor | |
| CN103345004A (en) | Rainfall monitoring network and rainfall monitoring method through utilization of fiber bragg grating hydrocone type rain gauge | |
| CN103115895B (en) | Sensor fibre refractive index multi-point detection method and device is bored based on drawing of optical time domain reflection technology | |
| CN105588612B (en) | A kind of jack-up unit wave loadings experimental data collector and method | |
| CN202994735U (en) | Ultrasonic guided-wave detection system | |
| CN107489890A (en) | A kind of pipe leakage acoustic wave sensing system and method | |
| CN108957209A (en) | A kind of broken string automatic detection device of telecommunication optical fiber optical cable production | |
| CN203881475U (en) | Steel strand facilitating test on prestressing loss | |
| CN108037274A (en) | A kind of concrete structure real-time monitoring device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Tao Zhiyong Inventor after: Bai Lichun Inventor after: Gao Yandong Inventor after: Bai Lixin Inventor after: Deng Jingjun Inventor after: Li Chao Inventor after: Xu Delong Inventor after: Lin Weijun Inventor after: Bai Lirong Inventor before: Bai Lixin Inventor before: Deng Jingjun Inventor before: Li Chao Inventor before: Xu Delong Inventor before: Lin Weijun Inventor before: Bai Lichun Inventor before: Gao Yandong Inventor before: Tao Zhiyong Inventor before: Bai Lirong |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |