CN110400868A - A kind of spherical piezoelectric ceramic composite material structure and its energy transducer - Google Patents
A kind of spherical piezoelectric ceramic composite material structure and its energy transducer Download PDFInfo
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- CN110400868A CN110400868A CN201910662503.8A CN201910662503A CN110400868A CN 110400868 A CN110400868 A CN 110400868A CN 201910662503 A CN201910662503 A CN 201910662503A CN 110400868 A CN110400868 A CN 110400868A
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- 239000000919 ceramic Substances 0.000 title claims abstract description 98
- 239000002131 composite material Substances 0.000 title claims abstract description 82
- 229920000642 polymer Polymers 0.000 claims abstract description 18
- 238000009826 distribution Methods 0.000 claims abstract description 5
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 2
- 239000002305 electric material Substances 0.000 claims 1
- 229920002627 poly(phosphazenes) Polymers 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 11
- 238000003384 imaging method Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
- G10K9/122—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using piezoelectric driving means
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/80—Constructional details
- H10N30/88—Mounts; Supports; Enclosures; Casings
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Transducers For Ultrasonic Waves (AREA)
Abstract
This patent is related to high frequency spherical piezoelectric composite ceramic structures, more particularly to a kind of spherical piezoelectric ceramic composite material structure and its energy transducer, spherical piezoelectric ceramic composite material structure includes multiple piezoelectric ceramics primitives of distribution spherical in shape, each piezoelectric ceramics primitive piezoelectric ceramics primitive uniform intervals arrangement adjacent thereto；It is connected between every two piezoelectric ceramics primitive by high molecular polymer；Wherein, multiple piezoelectric ceramics primitives of spherical distribution can be spliced by spherical crown shape piezo-electricity composite material and hyperboloid piezo-electricity composite material；According to spherical piezoelectric ceramic composite material structure and usage, different model piezoelectricity block and different filled polymers, spherical piezoelectric ceramic composite material structure can be selected；Can also cross section geometric dimension, piezoelectric ceramics accounting to piezoelectric ceramics primitive be designed, high frequency omnidirectional transducer part can be developed, when being applied to Underwater Imaging sonar and detection sonar, the detection dead angle of sonar can be reduced, increase detection accuracy and investigative range.
Description
Technical field
This patent is related to a kind of high frequency spherical piezoelectric composite ceramic structures, more particularly to it is a kind of be applied to undersea detection at
As using high frequency omnidirectional transducer piezoelectric composite ceramics structure.
Background technique
With the development that the small underwaters such as frogman's carrier, UUV are equipped, naval vessels and harbour face it is underwater threaten it is increasingly tight
It is high.For the threat for defending above-mentioned precision target, it is desirable that the sonobuoy for harbor defense assembles high frequency, broadband, the high property of omnidirectional
The transmitting underwater acoustic transducer of energy.High frequency can realize the fine detection to Small object, improve detection accuracy and resolution ratio, reduce sonar
Detection dead angle, increase detection accuracy and investigative range.
Core sensing unit of the spherical piezoelectric ceramic composite material structure as high frequency three dimensional omnidirectional acoustical device is to realize
The Primary Component of energy conversion.Common sensing unit mostly uses greatly pure piezoceramic material or piezo-electric ceramic composite material knot
Structure.When using pure piezoelectric ceramics, if production glomeration is used to emit high frequency sound wave signal, due to multiple harmonics and modal coupling etc.
Factor, mode is spuious when high-frequency vibration, causes acoustic irradiation efficiency at working frequency points extremely low；On the other hand due to piezoelectric ceramics
Acoustic vibration efficiency of transmission can be also greatly reduced much higher than the acoustic impedance of the common vehicles such as water or air in acoustic impedance.
Two-dimensional Surfaces shape piezo-electric ceramic composite material structure is widely used in underwater acoustic transducer part, ultrasonic transducer at present
Part and pressure sensor.In order to meet high performance high frequency three dimensional omnidirectional transducer part manufacture claim, being badly in need of one kind can
Acoustic radiation excellent, technique make simple and stable structure spherical piezoelectric ceramic composite material structure.
General spherical piezoelectric ceramic composite material structure be directly adopt two pure piezoelectric ceramics hemisphere be packaged and
At.Such material can be applied to grinding for high-performance ultrasound and underwater sound device since acoustic impedance is low, manufacture craft is simple extensively
Hair.Such as the technology used in patent CN102750941A and CN106683656A etc..
But when such piezo-electric ceramic composite material uses pure piezoelectric ceramics, due to piezoelectric ceramics acoustic impedance much higher than water or
The acoustic impedance of the common vehicles such as air causes acoustic vibration efficiency of transmission extremely low, cannot be applied to high frequency scene well, so that
Its effective working efficiency is low.
Summary of the invention
Based on problem of the existing technology, the invention proposes a kind of spherical piezoelectric ceramic composite material structure and its change
It can device.
A kind of spherical piezoelectric ceramic composite material structure, the spherical piezoelectric ceramic composite material structure include spherical in shape point
Multiple piezoelectric ceramics primitives of cloth, each piezoelectric ceramics primitive piezoelectric ceramics primitive uniform intervals arrangement adjacent thereto；Every two
It is connected between piezoelectric ceramics primitive by high molecular polymer.
Further, multiple piezoelectric ceramics primitives of the distribution spherical in shape are included at least by two spherical crown shape Piezoelectric anisotropies
Material is spliced.
It further, further include that at least two hyperboloid shape piezo-electricity composite materials are spliced.
Further, the model of the hyperboloid shape piezo-electricity composite material and spherical crown shape piezo-electricity composite material includes a variety of
Emissivity, reception type or transmitting-receiving compatible type piezoelectric material, specifically include PZT-41 type, PZT-43 type, PZT-5 type, PZT-8 type
In any one or Multiple Type it is compound.
Further, in the spherical piezoelectric ceramic composite material structure piezoelectric ceramics primitive accounting be 30%~
90%, spherical radius is 10~100mm.
Further, a length of 1~5mm of the piezoelectric ceramics primitive, width is 1~5mm, with a thickness of 2~10mm, every two
Width between piezoelectric ceramics primitive is 0.1mm~10mm.
Further, the high molecular polymer includes epoxy resin or/and polyurethane.
A kind of energy transducer, entrant sound clad, matching layer, any of the above-described spherical piezoelectric ceramics including sequence stacking connection
Composite structure, back sheet and underwater electrical connector；The entrant sound clad, matching layer and back sheet be with it is described
Piezo-electric ceramic composite material structure is concentric spherical.The underwater electrical connector is stretched out from a side of spherical inner to the other side.
Beneficial effects of the present invention:
This patent is coronal by splicing ball and hyperboloid shape piezo-electricity composite material makes spherical piezoelectric composite material, according to ball
Different model piezoelectricity block and different filled polymers, system can be selected in shape piezo-electric ceramic composite material structure and usage
Make the spherical piezoelectric ceramic composite material structure of different type different geometrical size.According to rear end transducer devices acoustic characteristic
It is different require, can cross section geometric dimension, piezoelectric ceramics accounting to piezoelectric ceramics primitive carry out different designs, Neng Gouman
The technical requirements such as foot different bandwidth characteristic and transmitting voltage response characteristic.Achievement based on this patent can be developed and be changed
Energy device, concretely high frequency omnidirectional transducer part can reduce when the device is applied to Underwater Imaging sonar and detection sonar
The detection dead angle of sonar increases detection accuracy and investigative range.
Detailed description of the invention
Fig. 1 is the energy transducer of a preferred embodiment of this patent；
Fig. 2 is the splicing schematic diagram of the spherical piezoelectric ceramic composite material structure of this patent；
Fig. 3 is the energy transducer of a preferred embodiment of this patent；
In figure, 1, entrant sound clad, 2, matching layer, 3, spherical piezoelectric ceramic composite material structure, 4, back sheet, 5, watertight
Connector.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to of the invention real
The technical solution applied in example is clearly and completely described, it is clear that described embodiment is only that present invention a part is implemented
Example, instead of all the embodiments.
A kind of spherical piezoelectric ceramic composite material structure of this patent, as shown in Figure 1, the spherical piezoelectric Ceramic Composite material
Material structure includes multiple piezoelectric ceramics primitives of distribution spherical in shape, and each piezoelectric ceramics primitive piezoelectric ceramics primitive adjacent thereto is equal
It is even to be alternatively arranged；It is connected between every two piezoelectric ceramics primitive by high molecular polymer；Wherein (or the square of the square in Fig. 1
Shape) indicate piezoelectric ceramics primitive, the gap between two squares indicates the high molecular polymer of filling.
In a preferred embodiment, the consistency of thickness of the thickness of high molecular polymer and ceramic primitive.
In another embodiment, the thickness of high molecular polymer is slightly below the thickness of ceramic primitive, thickness generally below
Degree is between 0.01~0.05mm.
In one embodiment, when sphere sizes are smaller, for example, when spherical radius is 10mm；Spherical piezoelectric ceramics
Composite structure is directly spliced by two spherical crown shape piezo-electricity composite materials, i.e., directly by two hemispherical Piezoelectric anisotropy materials
Material is spliced.
In one embodiment, when sphere sizes are larger, spherical piezoelectric ceramic composite material structure is by upper and lower two balls
Coronal piezo-electricity composite material and at least two hyperboloid piezo-electricity composite materials are spliced, as shown in Fig. 2, in this embodiment,
Four hyperboloid piezo-electricity composite materials using upper and lower two spherical crown shape piezo-electricity composite materials and surrounding are spliced.
In one embodiment, the high molecular polymer uses epoxy resin.
In another embodiment, the high molecular polymer uses polyurethane.
In another embodiment, the high molecular polymer uses the combination of epoxy resin and polyurethane.
In one embodiment, the model of the hyperboloid shape piezo-electricity composite material and spherical crown shape piezo-electricity composite material is wrapped
A variety of emissivities, reception type or transmitting-receiving compatible type piezoelectric material are included, specifically includes PZT-41 type, PZT-43 type, PZT-5 type,
Any one in PZT-8 type or Multiple Type are compound.
In a preferred embodiment, hyperboloid shape piezo-electricity composite material and spherical crown shape piezo-electricity composite material are using same
Model carries out compound, it is preferred that selection PZT-41 type.
In one embodiment, the accounting of piezoelectric ceramics primitive is 30% in the spherical piezoelectric ceramic composite material structure
~90%, spherical radius is 10~100mm.
In a preferred embodiment, the accounting of piezoelectric ceramics primitive is in the spherical piezoelectric ceramic composite material structure
80%.
In one embodiment, a length of 1~5mm of the piezoelectric ceramics primitive, width is 1~5mm, with a thickness of 2~10mm,
Width between every two piezoelectric ceramics primitive is 0.1mm~10mm.
Certainly, on without departing from scope and spirit of the present invention, above-mentioned size can also need suitably to be adjusted according to demand
It is whole, make it possible to meet the technical requirements such as different bandwidth characteristic and transmitting voltage response characteristic.Specifically, according to spherical shape
The different usage of piezo-electric ceramic composite material structure, different model piezoelectricity block can be selected in this patent and different fillings is poly-
Object is closed, different types of spherical piezoelectric ceramic composite material structure is produced.Not according to rear end transducer devices acoustic characteristic
With require, can cross section geometric dimension, polymer width and radius to piezoelectric ceramics primitive carry out different designs, meet
The technical requirements such as different bandwidth characteristic and transmitting voltage response characteristic.
In one embodiment, piezo-electric ceramic composite material structure is by a spherical crown shape piezo-electricity composite material and hyperboloid shape
Piezo-electricity composite material splicing is prepared.
Then brake forming is made using cutting completion method for spherical crown shape and hyperboloid shape piezo-electricity composite material, is bent
Angle is corresponding with the radius of the spherical shape；
In one embodiment, the piezo-electric ceramic composite material block of six pieces of PZT-41 types is cut；Wherein it is used as spherical crown for two pieces
In addition shape piezo-electricity composite material is used as hyperboloid shape piezo-electricity composite material for four pieces；Each piece is cut by the way of cutting
It cuts through, forms multiple piezoelectric ceramics primitives of uniform size；It, will after penetrating, then by the way of high molecular polymer filling
The gap of each piezoelectric ceramics primitive connects；By the way of bending forming, by the high molecular polymer of each junction
Bending Deformation is carried out, so that piezo-electric ceramic composite material block forms certain shape, such as hyperboloid shape, spherical crown shape etc.
Deng.Using the piezo-electric ceramic composite material block of two spherical crown shapes as spherical spherical crown up and down, the piezoelectricity of four pieces of hyperboloid shapes is made pottery
Porcelain composite block is as spherical surrounding, likewise, using high molecular polymer, by this six pieces of piezo-electric ceramic composite material blocks
Spliced.
By taking spherical radius is 50mm as an example, the corresponding radian of spherical crown is 70~100 ° in the present embodiment, hyperboloid shape piezoelectricity
The corresponding radian of composite material is 100~150 °.
The other structures of element matching energy converter can prepare three-D high frequency omnidirectional transducer part.
In one embodiment, as shown in figure 3, proposing a kind of energy transducer, the entrant sound packet including sequence stacking connection
Coating 1, matching layer 2, any of the above-described spherical piezoelectric ceramic composite material structure 3, back sheet 4 and underwater electrical connector 5；It is described
It is concentric spherical that sound clad 1, matching layer 2 and back sheet 4, which are with the piezo-electric ceramic composite material structure 3,；It is described
Underwater electrical connector 5 is stretched out from a side of spherical inner to the other side；It that is to say through spherical piezoelectric ceramic composite material structure, and
It is stretched out to entrant sound clad 1；Watertight is provided in the central axis of spherical piezoelectric ceramic composite material structure transversely (or vertically) to connect
Wire guide draws underwater electrical connector 5 from one；Wherein, spherical piezoelectric ceramic composite material structure 3 can be carried out by central axis
It divides, as two independent half ball electrodes.
In a preferred embodiment, which uses sound transmitting rubber.
In one embodiment, in the blister cavities of the inner cavity of spherical piezoelectric ceramic composite material structure 3 and entrant sound clad 1
Methyl-silicone oil can be perfused.
Embodiment provided above has carried out further detailed description, institute to the object, technical solutions and advantages of the present invention
It should be understood that embodiment provided above is only the preferred embodiment of the present invention, be not intended to limit the invention, it is all
Any modification, equivalent substitution, improvement and etc. made for the present invention, should be included in the present invention within the spirit and principles in the present invention
Protection scope within.
Claims (8)
1. a kind of spherical piezoelectric ceramic composite material structure, which is characterized in that the spherical piezoelectric ceramic composite material structure packet
Include multiple piezoelectric ceramics primitives of distribution spherical in shape, each piezoelectric ceramics primitive piezoelectric ceramics primitive uniform intervals row adjacent thereto
Column；It is connected between every two piezoelectric ceramics primitive by high molecular polymer.
2. a kind of spherical piezoelectric ceramic composite material structure according to claim 1, which is characterized in that described spherical in shape point
Multiple piezoelectric ceramics primitives of cloth are included at least and are spliced by two spherical crown shape piezo-electricity composite materials.
3. a kind of spherical piezoelectric ceramic composite material structure according to claim 2, which is characterized in that further include at least two
A hyperboloid shape piezo-electricity composite material is spliced.
4. a kind of spherical piezoelectric ceramic composite material structure according to claim 3, which is characterized in that the hyperboloid shape
The model of piezo-electricity composite material and spherical crown shape piezo-electricity composite material includes a variety of emissivities, reception type or transmitting-receiving compatible type pressure
Electric material, specifically includes PZT-41 type, PZT-43 type, PZT-5 type, any one in PZT-8 type or Multiple Type are compound.
5. a kind of spherical piezoelectric ceramic composite material structure according to claim 1, which is characterized in that the spherical piezoelectric
The accounting of piezoelectric ceramics primitive is 30%~90% in ceramic composite material structure, and spherical radius is 10~100mm.
6. a kind of spherical piezoelectric ceramic composite material structure according to claim 1, which is characterized in that the piezoelectric ceramics
A length of 1~5mm of primitive, width are 1~5mm, and with a thickness of 2~10mm, the width between every two piezoelectric ceramics primitive is 0.1mm
~10mm.
7. a kind of spherical piezoelectric ceramic composite material structure according to claim 1, which is characterized in that the polyphosphazene polymer
Closing object includes epoxy resin or/and polyurethane.
8. a kind of energy transducer, which is characterized in that including spherical pressure any in entrant sound clad, matching layer, claim 1~7
Electroceramics composite structure, back sheet and underwater electrical connector；The entrant sound clad, matching layer and back sheet are
It is concentric spherical with the piezo-electric ceramic composite material structure；The underwater electrical connector is from a side of spherical inner to the other side
It stretches out.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910662503.8A CN110400868A (en) | 2019-07-22 | 2019-07-22 | A kind of spherical piezoelectric ceramic composite material structure and its energy transducer |
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| CN201910662503.8A CN110400868A (en) | 2019-07-22 | 2019-07-22 | A kind of spherical piezoelectric ceramic composite material structure and its energy transducer |
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Cited By (4)
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| CN111129282A (en) * | 2019-12-16 | 2020-05-08 | 杭州电子科技大学 | Piezoelectric ceramic intelligent structure and method for embedding piezoelectric ceramic intelligent structure into metal matrix |
| CN111495724A (en) * | 2020-04-28 | 2020-08-07 | 陕西师范大学 | Radial sandwich type spherical piezoelectric ceramic composite ultrasonic transducer and transduction method |
| CN112285202A (en) * | 2020-10-20 | 2021-01-29 | 天津大学 | Variable-curvature PBX surface crack oriented nondestructive testing method and sensor |
| CN115542303A (en) * | 2022-09-30 | 2022-12-30 | 中国科学院深圳先进技术研究院 | Hemispherical omnidirectional ultrasonic transducer for complex structure detection and preparation method thereof |
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| CN112285202A (en) * | 2020-10-20 | 2021-01-29 | 天津大学 | Variable-curvature PBX surface crack oriented nondestructive testing method and sensor |
| CN115542303A (en) * | 2022-09-30 | 2022-12-30 | 中国科学院深圳先进技术研究院 | Hemispherical omnidirectional ultrasonic transducer for complex structure detection and preparation method thereof |
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