CN110391330A - Compound magnetoelectric transducing unit based on magnetostrictive force coupling - Google Patents
Compound magnetoelectric transducing unit based on magnetostrictive force coupling Download PDFInfo
- Publication number
- CN110391330A CN110391330A CN201810339493.XA CN201810339493A CN110391330A CN 110391330 A CN110391330 A CN 110391330A CN 201810339493 A CN201810339493 A CN 201810339493A CN 110391330 A CN110391330 A CN 110391330A
- Authority
- CN
- China
- Prior art keywords
- layer
- magnetostrictive
- piezoelectric layer
- piezoelectric
- fixed
- 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.)
- Pending
Links
- 150000001875 compounds Chemical class 0.000 title claims abstract description 37
- 230000002463 transducing effect Effects 0.000 title claims abstract description 29
- 230000008878 coupling Effects 0.000 title claims abstract description 17
- 238000010168 coupling process Methods 0.000 title claims abstract description 17
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 17
- 239000000463 material Substances 0.000 claims description 45
- 239000000919 ceramic Substances 0.000 claims description 5
- 239000010453 quartz Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 230000005611 electricity Effects 0.000 abstract description 6
- 230000004044 response Effects 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 12
- 238000010276 construction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000003822 epoxy resin Substances 0.000 description 4
- 229920000647 polyepoxide Polymers 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 229910002546 FeCo Inorganic materials 0.000 description 1
- 229910001329 Terfenol-D Inorganic materials 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000002305 electric material Substances 0.000 description 1
- 229920006335 epoxy glue Polymers 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000005690 magnetoelectric effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N35/00—Magnetostrictive devices
- H10N35/101—Magnetostrictive devices with mechanical input and electrical output, e.g. generators, sensors
Landscapes
- Soft Magnetic Materials (AREA)
Abstract
The present invention relates to a kind of compound magnetoelectric transducing units based on magnetostrictive force coupling.Including magnetostrictive layer and piezoelectric layer, magnetostrictive layer and piezoelectric layer are fixed with each other at the position by two close end, the part of magnetostrictive layer and piezoelectric layer between the fixed point of both ends, it does not contact between each other, the magnetostrictive force that magnetostrictive layer generates under magnetic fields is transmitted to piezoelectric layer by the fixed point at both ends, makes piezoelectric layer stress and generates electricity output；Magnetostrictive layer and piezoelectric layer compound tense, magnetostrictive layer is fixed with piezoelectric layer incomplete contact between, and only magnetostrictive layer both ends are by gasket or glue-line or boss in conjunction with piezoelectric layer both ends, substantially reduce the contact area of magnetostrictive layer and piezoelectric layer, the intrinsic noise of magneto-electric response is effectively reduced, and makes compound magnetoelectric transducing unit that there is higher Q value.
Description
Technical field
The present invention relates to a kind of magnetoelectricity transducing unit or structure, especially a kind of mangneto based on magnetostrictive force coupling is stretched
The compound magnetoelectricity sensitive material of compression material/piezoelectric material and structure.
Background technique
Different materials are compound in some way, improve the performance of different materials using its complex effect and excavates new
Performance is a research hotspot of functional material and devices field.Especially by magnetostriction materials and piezoelectric material with certain
It may make up magnetostriction/piezo-electricity composite material after mode is compound, magnetoelectricity effect can be obtained according to the product performance of the composite material
It answers.Meanwhile the efficient coupling in order to realize strain, close contact is needed between magnetostriction phase and piezoelectric phase.So far,
Develop compound (W.Eerenstein, N.D.Mathur, J.F.Scott, the Multiferroic and of particle mixed phase
Magnetoelectric materials, Nature, Vol 442,17August 2006, pp.759-765), lamination it is compound
(United States Patent (USP) US6809515B1,2004), embedded compound (United States Patent (USP) US6809516B1,2004) etc. are a variety of compound
Mode.Among these complex methods, lamination complex method prepares simple, function admirable, is widely studied.So
And magnetostriction/laminated piezoelectric composite construction generallys use epoxyn for the surface of magnetostrictive layer and piezoelectric layer
It bonds together, i.e. magnetostriction materials side and the whole of piezoelectric material side bonds together, and passes through strain between each other
Coupling generates magnetoelectric effect.At this point, the area of glue-line is equal or suitable with the surface area of magnetostriction materials, epoxy resin
Dielectric loss characteristics will affect magnetostriction/laminated piezoelectric composite construction intrinsic noise characteristic.Such factor can make with mangneto
Flexible/laminated piezoelectric composite material is that magnetostriction/piezo-electric composite sensor noise of structure is difficult to further decrease.It is another
Aspect, under this complex method, due to passing through Strain-coupled, magnetostriction/piezo stack between magnetostrictive layer and piezoelectric layer
The quality factor (Q value) of layer composite construction depend on the synthesis of magnetostriction materials quality factor and piezoelectric material quality factor,
And the quality factor of magnetostriction materials are usually smaller (< 100), thus limit magnetostriction/laminated piezoelectric composite construction
Whole effective quality factor.
Summary of the invention
The purpose of the present invention is to provide a kind of magnetoelectricity transducing unit or material structures, especially a kind of to use magnetostriction
Material and piezoelectric material compound magnetoelectricity transducing unit or material structure.
In order to solve the above technical problem, the present invention provides a kind of compound magnetoelectric transducing lists based on magnetostrictive force coupling
Member, including magnetostrictive layer and piezoelectric layer, magnetostrictive layer and piezoelectric layer are fixed with each other at the position by two close end,
The part of magnetostrictive layer and piezoelectric layer between the fixed point of both ends, does not contact, magnetostrictive layer is in magnetic field between each other
The lower magnetostrictive force generated of effect is transmitted to piezoelectric layer by the fixed point coupling at both ends, makes piezoelectric layer stress and generates electricity
Output.
Further, be additionally provided with gasket in the fixed position of magnetostrictive layer and piezoelectric layer, the two sides of gasket respectively with
Magnetostrictive layer and piezoelectric layer fix and make the part of magnetostrictive layer and piezoelectric layer between the fixed point of both ends not contact.
Further, the gasket is using any one in quartz crystal, ceramics, high-permeability material or permanent-magnet material
It is prepared.
Further, solid using epoxyn or thermocompression bonding between gasket and magnetostrictive layer and/or piezoelectric layer
It is fixed.
Further, magnetostrictive layer and piezoelectric layer are fixed using epoxyn or thermocompression bonding.
Further, there is certain height after the epoxyn is solid.
Further, boss is provided on magnetostrictive layer, piezoelectric layer is fixed with boss.
Further, boss is provided on piezoelectric layer, magnetostrictive layer is fixed with boss.
Compared with prior art, the present invention its remarkable advantage is:
(1) present invention is under the NEW TYPE OF COMPOSITE mode of stress transfer, by answering couple of force between magnetostrictive layer and piezoelectric layer
It closes, this structure can make the effective quality factor of compound magnetoelectric transducing unit depend primarily on piezoelectric material, rather than depend on
In the compound synthesis of magnetostriction materials and piezoelectric material, this makes the Q value of compound magnetoelectric transducing unit higher；
(2) present invention is under the NEW TYPE OF COMPOSITE mode of stress transfer, and only the side at magnetostriction materials both ends passes through
Gasket or glue-line substantially reduce power of having an effect between magnetostrictive layer and piezoelectric layer in conjunction with the side at piezoelectric material both ends
Area, to effectively reduce the intrinsic noise of magneto-electric response.
Detailed description of the invention
Fig. 1 is a kind of implementation schematic diagram of compound magnetoelectric transducing unit of the present invention；
Fig. 2 is another implementation schematic diagram of compound magnetoelectric transducing unit of the present invention；
Fig. 3 is another implementation schematic diagram of compound magnetoelectric transducing unit of the present invention.
Specific embodiment
It is readily appreciated that, technical solution according to the present invention, in the case where not changing connotation of the invention, this field
Those skilled in the art can imagine the numerous embodiments of compound magnetoelectric transducing unit of the present invention.Therefore, real in detail below
Mode and attached drawing are applied only and be the exemplary illustration to technical solution of the present invention, and is not to be construed as whole or view of the invention
For the limitation or restriction to technical solution of the present invention.
Embodiment 1
In conjunction with Fig. 1, the compound magnetoelectric transducing unit is made of magnetostrictive layer 1, piezoelectric layer 2, gasket 3.It prepares compound
When magnetoelectricity transducing unit, using techniques such as epoxyn or thermocompression bondings, by magnetostrictive layer 1, piezoelectric layer 2 and gasket
3 are combined with each other according to mode shown in FIG. 1.Specifically, magnetostrictive layer 1 and 2 both ends of piezoelectric layer are viscous with glue-line by gasket 3
It connects and is combined with each other, the area of glue-line is equal with the surface area of gasket 2, and magnetostrictive layer 1 and piezoelectric layer 2 are located at both ends gasket 2
Middle section vacantly without contact.Under magnetostriction effect, the magnetostrictive force that magnetostrictive layer 1 generates passes through pad
Piece is transmitted to piezoelectric layer 2, so that piezoelectric layer 2 generates electricity output due to piezoelectric effect.
The magnetostrictive layer 1 is cut using the material with magnetostrictive effect, such as giant magnetostrictive material
Terfenol-D, FeGa alloy, FeCo alloy, Ni etc..
The piezoelectric layer 2 is cut using the material with piezoelectric effect, such as piezoelectric ceramics, AlN, piezoelectric monocrystal
PMN-PT etc..
The gasket 3 can be used quartz crystal, ceramics etc. and be prepared.
Preferably, gasket 3 can be prepared using high-permeability material, and the gasket 3 of high magnetic permeability can be by ring at this time
Magnetic field in border assembles and is transmitted to magnetostrictive layer 1, to enhance the coefficient of magnetoelectricity conversion.
Preferably, gasket 3 can be prepared using permanent-magnet material, and the gasket 3 with permanent magnetism performance can be magnetic at this time
Stretchable layer 1 is caused to apply certain bias magnetic field, the operating point for keeping the work of magnetostrictive layer 1 optimal in piezomagnetic coefficient, to obtain
Big magnetoelectricity conversion coefficient.
Preferably, gasket 3 can be exactly epoxy glue layer, that is, magnetostrictive layer 1 and piezoelectric layer 2 pass through epoxy
Resin glue directly bonds together at both ends, but has certain height after epoxide-resin glue solidification, so that magnetostrictive layer 1
Middle section with piezoelectric layer 2 is vacantly without contacting.It is used as gasket compared to using quartz, ceramics etc., reduces pad at this time
The transmittance process of piece, and magnetostrictive force is directly transmitted by glue-line, it prepares more simple.In fact, epoxide-resin glue solidifies
Height afterwards can be ignored, as long as not having an effect power between magnetostrictive layer and piezoelectric layer mutually.
Embodiment 2
In conjunction with Fig. 2, the compound magnetoelectric transducing unit is made of magnetostrictive layer 1, piezoelectric layer 2.1 both ends of magnetostrictive layer
Design has the boss of dimpling.When preparing compound magnetoelectric transducing unit, in the boss surface gluing of magnetostrictive layer 1, then by magnetic
Stretchable layer 1 is caused to bond together by boss with piezoelectric layer 2.It is bonded in the compound magnetoelectric transducing list completed, in addition to lug boss position
Outside place, magnetostrictive layer 1 and piezoelectric layer 2 are fixed to each other, magnetostrictive layer 1 is not generated with the middle section of piezoelectric layer 2 and is contacted, i.e.,
There is no Strain-coupleds, but the magnetostrictive force that magnetostrictive layer generates under magnetic fields is passed by the fixed point at both ends
It is delivered to piezoelectric layer, makes piezoelectric layer stress and generates electricity output.
Under magnetostriction effect, the magnetostrictive force that magnetostrictive layer 2 generates is transmitted to piezoelectric layer 2 by boss, from
And piezoelectric layer generates electricity output due to piezoelectric effect.
Embodiment 3
In conjunction with Fig. 3, technical solution shown in the present embodiment is similar to technical solution shown in embodiment 2, the difference is that, have
The boss of dimpling is arranged on piezoelectric layer 2.
Generally speaking, in the above embodiments, magnetostrictive layer 1 and piezoelectric layer 2 are mutual at the position by two close end
It is fixed together, the part of magnetostrictive layer 1 and piezoelectric layer 2 between the fixed point of both ends is not fixed between each other and does not send out
Raw active force.Magnetostriction materials and piezoelectric material compound tense, magnetostrictive layer is not completely be bonded with piezoelectric layer, and is only
The side at magnetostriction materials both ends in conjunction with the side at piezoelectric material both ends, is subtracted significantly by gasket or glue-line or boss
The small contact area of magnetostrictive layer and piezoelectric layer.The magnetostrictive force that magnetostriction materials generate under magnetic fields passes through
Coupled structure is transmitted to piezoelectric material, and piezoelectric material is driven to generate dilatation, and piezoelectric material is defeated since piezoelectric effect generates electricity
Out, magnetic-power-electricity conversion is realized.
In the present invention, by magnetostrictive force/stress coupling between magnetostriction materials and piezoelectric material, mangneto can be made
The noise of flexible/piezo-electric composite sensor further decreases, this is different from existing magnetostriction/laminated piezoelectric composite construction and passes through
The mode of Strain-coupled.This special structure can make the effective quality factor of compound magnetoelectric transducing unit depend primarily on pressure
Electric material, rather than the synthesis compound depending on magnetostriction materials and piezoelectric material, this makes magnetoelectricity transducing of the present invention
The Q value of cellular construction is higher.
Claims (8)
1. the compound magnetoelectric transducing unit based on magnetostrictive force coupling, which is characterized in that including magnetostrictive layer and piezoelectric layer,
Magnetostrictive layer and piezoelectric layer are fixed with each other at the position by two close end, and magnetostrictive layer and piezoelectric layer are located at both ends
Part between fixed point, does not contact between each other.
2. the compound magnetoelectric transducing unit as described in claim 1 based on magnetostrictive force coupling, which is characterized in that in mangneto
The fixed position of stretchable layer and piezoelectric layer is additionally provided with gasket, and the two sides of gasket is fixed with magnetostrictive layer and piezoelectric layer respectively
And contact the part of magnetostrictive layer and piezoelectric layer between the fixed point of both ends not.
3. the compound magnetoelectric transducing unit as claimed in claim 2 based on magnetostrictive force coupling, which is characterized in that the pad
Piece is prepared using any one in quartz crystal, ceramics, high-permeability material or permanent-magnet material.
4. as claimed in claim 2 based on magnetostrictive force coupling compound magnetoelectric transducing unit, which is characterized in that gasket with
It is fixed between magnetostrictive layer and/or piezoelectric layer using epoxyn or thermocompression bonding.
5. the compound magnetoelectric transducing unit as described in claim 1 based on magnetostrictive force coupling, which is characterized in that mangneto is stretched
Contracting layer and piezoelectric layer are fixed using epoxyn or thermocompression bonding.
6. the compound magnetoelectric transducing unit as claimed in claim 5 based on magnetostrictive force coupling, which is characterized in that the ring
There is certain height after oxygen resin adhesive is solid.
7. the compound magnetoelectric transducing unit as described in claim 1 based on magnetostrictive force coupling, which is characterized in that mangneto is stretched
Boss is provided on contracting layer, piezoelectric layer is fixed with boss.
8. the compound magnetoelectric transducing unit as described in claim 1 based on magnetostrictive force coupling, which is characterized in that piezoelectric layer
On be provided with boss, magnetostrictive layer is fixed with boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810339493.XA CN110391330A (en) | 2018-04-16 | 2018-04-16 | Compound magnetoelectric transducing unit based on magnetostrictive force coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810339493.XA CN110391330A (en) | 2018-04-16 | 2018-04-16 | Compound magnetoelectric transducing unit based on magnetostrictive force coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110391330A true CN110391330A (en) | 2019-10-29 |
Family
ID=68283906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810339493.XA Pending CN110391330A (en) | 2018-04-16 | 2018-04-16 | Compound magnetoelectric transducing unit based on magnetostrictive force coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110391330A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113030796A (en) * | 2021-03-10 | 2021-06-25 | 洛玛瑞芯片技术常州有限公司 | Magnetic sensor |
| CN113422198A (en) * | 2021-06-22 | 2021-09-21 | 上海科技大学 | Magneto-electric mechanical resonant antenna integrated with permanent magnet |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1755962A (en) * | 2005-07-25 | 2006-04-05 | 中国人民解放军国防科学技术大学 | Nickel/piezoelectric ceramic laminar composite material with magnetoelectric effect and preparation process thereof |
| CN106872913A (en) * | 2015-12-14 | 2017-06-20 | 南京理工大学 | A kind of high q-factor resonance Magnetic Sensor of frequency conversion output |
-
2018
- 2018-04-16 CN CN201810339493.XA patent/CN110391330A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1755962A (en) * | 2005-07-25 | 2006-04-05 | 中国人民解放军国防科学技术大学 | Nickel/piezoelectric ceramic laminar composite material with magnetoelectric effect and preparation process thereof |
| CN106872913A (en) * | 2015-12-14 | 2017-06-20 | 南京理工大学 | A kind of high q-factor resonance Magnetic Sensor of frequency conversion output |
Non-Patent Citations (1)
| Title |
|---|
| CAIJIANG LU, ET AL: ""Enhancement of resonant magnetoelectric effect in magnetostrictive/piezoelectric heterostructure by end bonding"", 《APPLIED PHYSICS LETTERS》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113030796A (en) * | 2021-03-10 | 2021-06-25 | 洛玛瑞芯片技术常州有限公司 | Magnetic sensor |
| CN113030796B (en) * | 2021-03-10 | 2022-10-25 | 洛玛瑞芯片技术常州有限公司 | Magnetic sensor |
| CN113422198A (en) * | 2021-06-22 | 2021-09-21 | 上海科技大学 | Magneto-electric mechanical resonant antenna integrated with permanent magnet |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206178120U (en) | Reduce magnetism electric sensor sensing element of vibration noise | |
| Cai et al. | Large high-frequency magnetoelectric response in laminated composites of piezoelectric ceramics, rare-earth iron alloys and polymer | |
| Wan et al. | Giant magnetoelectric effect of a hybrid of magnetostrictive and piezoelectric composites | |
| US5334903A (en) | Composite piezoelectrics utilizing a negative Poisson ratio polymer | |
| KR101656722B1 (en) | Acoustic generator | |
| WO2014002286A1 (en) | Electromechanical conversion element and manufacturing method therefor | |
| US9185495B2 (en) | Oscillation device and electronic apparatus | |
| WO2018145340A1 (en) | Shear vibration-based piezoelectric composite material and preparation method therefor | |
| CN105047811B (en) | Piezoelectric material layer based on different-thickness stacks PZT (piezoelectric transducer) | |
| CN103828393B (en) | Sound producer, flexible piezoelectric sound-generating devices and electronic equipment | |
| CN110391330A (en) | Compound magnetoelectric transducing unit based on magnetostrictive force coupling | |
| WO2014021079A1 (en) | Electronic component, and electronic component module | |
| CN108963068B (en) | Torsional vibration magnetoelectric coupling device based on Wedman effect and manufacturing method thereof | |
| CN108550692A (en) | A kind of adjustable magneto-electric coupled composite material and preparation method of resonance mode | |
| CN102708851A (en) | Transmitting-receiving underwater transducer | |
| Kugel et al. | Comparative analysis of piezoelectric bending-mode actuators | |
| CN103066201B (en) | Method multi-field coupling preparation magnetoelectric composite | |
| CN109444770A (en) | A kind of magnetostriction materials and the compound low resistance resonant mode magnetoelectricity sensing unit of quartz tuning-fork | |
| CN206259386U (en) | A kind of miniature, flexible magnetic electric compound material | |
| US20050057123A1 (en) | Piezoelectric vibration energy harvesting device and method | |
| CN106505147A (en) | A kind of miniature, flexible magnetic electric compound material and preparation method thereof | |
| CN112378510A (en) | High-sensitivity flextensional hydrophone and manufacturing method thereof | |
| CN101047225B (en) | Magnetoelectric coupling device | |
| US20220094337A1 (en) | Integration Method and Integration Structure for Control Circuit and Acoustic Wave Filter | |
| Wang et al. | Dual-mode magnetoelectric effect in laminate composite of Terfenol-D alloy and PMN–PT transformer with double output ports |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191029 |
|
| RJ01 | Rejection of invention patent application after publication |