CN207798727U - A kind of device of test multiferroic liquid - Google Patents
A kind of device of test multiferroic liquid Download PDFInfo
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- CN207798727U CN207798727U CN201820145573.7U CN201820145573U CN207798727U CN 207798727 U CN207798727 U CN 207798727U CN 201820145573 U CN201820145573 U CN 201820145573U CN 207798727 U CN207798727 U CN 207798727U
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- container
- standpipe
- multiferroic
- multiferroic liquid
- liquid
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Abstract
The utility model discloses a kind of devices of test multiferroic liquid.Device includes for containing container made of the nonmagnetic, transparent of multiferroic liquid, insulating materials, upper end, the lower end of the container are respectively equipped with electrode plate made of transparent, non-magnetic material, form the sealing to container upper end, lower end, connecting hole there are two being set on the electrode plate of the upper end of the container, standpipe made of an eradication edge, non-magnetic material is separately connected in each connecting hole, each standpipe and being correspondingly connected between hole seals, wherein, a piece standpipe is used in multiferroic liquid injecting container, and another standpipe is used to the air in container being discharged.
Description
Technical field
The utility model is related to multi-ferroic material technical fields, more particularly to a kind of device of test multiferroic liquid.
Background technology
With the fast development of electronics and information industry, large capacity, low energy consumption, high speed, high performance electronic component
Urgent demand proposes increasingly higher demands to material.Multi-iron material is (ferroelectricity, ferromagnetic as two or three basic iron
Property, ferroelasticity) multifunctional material that coexists, not only in the application field of single ferroelectric material, more in New Magnetic Field Controlled-electric transducer device
The fields such as part, spin electric device, novel information memory device show huge application prospect.
So-called ferroelectricity refers to just the state that certain crystal are in spontaneous polarization, and has spontaneous polarization strength, one
Determine in temperature range, spontaneous polarization dipole moment can change with the direction for applying electric field outside.The region of these spontaneous polarizations is known as electricity
Farmland, the polarization direction in each electricdomain is consistent, and the polarization direction of adjacent electricdomain is then different.From the point of view of macroscopically, entire crystal
It is non-polarised, is in neutrality.Under the action of an external electric field, polarization expands along the electricdomain of direction of an electric field, and polarization direction tends to outfield side
To arrangement, spontaneous polarization can do reversible rotation with external electric field, and this property is known as ferroelectricity, the same with ferromagnetic material, iron
Electric material can be used for information storage.Since ferroelectric material has excellent ferroelectricity, dielectric, pyroelectric, electro-optical characteristic, sound
The characteristics such as light characteristic, nonlinear optics, they are in ferroelectric memory, infrared detector, sensor, surface acoustic wave, integrated electro
There is very important application in terms of the solid-state devices such as device, capacitor, this has also greatly pushed ferroelectric material and ferroelectricity object
Research and development of science.Based on the Ferroelectric Random Access Memory of ferroelectric material due to the features such as its is non-volatile and reading speed is fast
And there is huge application prospect.It is most hot that ferroelectric material and its application study have become Condensed Matter Physics, Solid State Electronics field
One of the research topic of door.
So-called ferromagnetism refers in the presence of no external magnetic field, and material is also at spontaneous manetization state, and has
There is spontaneous magnetization.The region of spontaneous manetization is known as magnetic domain, and the direction of spontaneous manetization is consistent in same magnetic domain, but not
It is disorderly arranged with the direction of magnetization inside magnetic domain, therefore, magnetism is not shown macroscopically.When having externally-applied magnetic field, in magnetic domain
The direction of magnetization in portion tends to outer field direction arrangement, and magnetic material shows ferromagnetism.The form of expression that there are mainly two types of ferromagnetisms, one
Kind is ferromagnetism, and another kind is ferrimagnetism.In ferrimagnet, macroscopic magnetization is drawn by being collectively aligned for atomic magnetic moment
It rises, and there is magnetic moment orientation is opposite but differs in size two kinds of atoms or ion in ferrimagnetic material.Hysteresis loop
The macroscopic magnetization characteristic that ferrimagnet is shown under externally-applied magnetic field, simultaneous reactions magnetic domain with the variation of externally-applied magnetic field and
It turns to.When the paramagnetic phase transition of ferromagnet from high temperature phase ferromagnetic to low temperature, the critical temperature Tc of ferromagnetic phase transition is known as iron
Magnetic curie temperature.
So-called multiferroic liquid (or being multiferroic fluid) (Multiferroic fluids, Multiferroic
Liquid), do not mean that proper " liquid " Multiferroic materials, and refer to by grain size 10nm's or so
Particle with multiferroic is dispersed in base fluid (fluid carrier), by adion (Charge repulsion) or
Surface takes long-chain molecule (position power) and reaches anti-agglomeration and the colloidal dispersion of stabilization that is formed.Nanoparticle typically refers to have more
The nanoparticle or nano wire of iron, base fluid are typically water, organic multiferroic liquid or aqueous organopolysiloxane.
For solid multi-iron material, more iron multiferroic liquid have following features：1, multi-iron material have can
Mobility, form are amorphous；2, multiferroic particle due to having ferroelectricity and magnetism simultaneously, in electric field or magnetic field
It under effect, can rotate with the particle of multiferroic, and due in multiferroic liquid, so its coercive field can compare
Small, due to Brownian movement, the steering under electric field or magnetic field is easier.3, under electric field or magnetic fields, solid-state multi-iron material
Being orientated for middle electricdomain can only be along certain orientations close to direction of an electric field, might not be along direction of an electric field, and for ferroelectricity
For property multiferroic liquid, since ferromagnetic fine particles can be freely rotated in multiferroic liquid, the orientation of electricdomain can be with
Completely along direction of an electric field.
Although multiferroic liquid has ferroelectricity, ferromagnetism and mobility simultaneously, therefore perhaps can have many unique
Electricity, magnetics, hydrodynamics, optics and acoustic characteristic, but since multiferroic liquid has solid multi-ferroic material simultaneously
Magnetic electricity performance and the mobility with multiferroic liquid.Therefore, the performance for measuring multiferroic liquid not only needs to measure electrical property
It can, it is also necessary to magnetic performance is measured, at the same time, it must also be considered that the mobility of multiferroic liquid.It is thus impossible to indiscriminately imitate common solid
The measuring device of body material.However, its electrical property, magnetic property, optical can be tested by being not currently seen reported a kind of device
Energy and magnetoelectric effect.For this problem, herein, we have proposed several apparatus structures and test methods, are expected to
It is promoted and applies in terms of multiferroic fluent material test.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of device of test multiferroic liquid.
What the purpose of this utility model was realized in：
A kind of device of test multiferroic liquid, includes for containing the nonmagnetic, transparent of multiferroic liquid, insulating materials
Manufactured container, upper end, the lower end of the container are respectively equipped with electrode plate made of transparent, non-magnetic material, are formed to container
The sealing of upper end, lower end is set on the electrode plate of the upper end of the container there are two connecting hole, and one is separately connected in each connecting hole
Insulation, standpipe made of non-magnetic material, each standpipe and being correspondingly connected between hole seal, wherein a standpipe is used for more iron
Property liquid injecting container in, another standpipe is used to the air in container being discharged.
Preferably, journal stirrup of the side setting of the electrode plate for connecting wire, the upper end of the container, the branch of lower end
Ear is symmetrical arranged in the horizontal direction.
Preferably, the container is cylindrical.
Preferably, the standpipe is adhesively fixed in the connecting hole on container side wall, and the electrode plate is adhesively fixed on appearance
The upper end or lower end of device.
A method of multiferroic liquid being tested, including a kind of device of test multiferroic liquid, test method include：
Step 1. tests preceding preparation
Multiferroic liquid to be measured is injected from a standpipe, so that the gas in container is discharged from another standpipe, works as position
When the liquid level of multiferroic liquid in two standpipes is higher than container, ensures there is no gas in container at this time, filled in container more
Iron liquid, multiferroic liquid are contacted with two electrode plates simultaneously, are stopped injection multiferroic liquid, are blocked two standpipes, it is ensured that
Container seals；
Step 2. test process
Two electrode plates are wired to dielectric analysis instrument, measure the dielectricity of multiferroic liquid；
When two electrode plates are wired to dielectric analysis instrument, container is placed in and becomes middle benefit gas heating, measures more iron
Dielectric constant, the dielectric loss variation with temperature curve of property liquid；
Two electrode plates are wired to ferroelectricity analyzer, measure ferroelectric hysteresis loop, the electric leakage electricity of multiferroic liquid
Current density；
By two electrode plates by wire connecting power, measure the light transmission of multiferroic liquid under electric field action, i.e., it is electric
Optical coupling effect；Measure the magnetism of multiferroic liquid under electric field action, i.e. magnetoelectric effect；
Apply magnetic field to container, measures the electric property of liquid, i.e. magnetoelectric effect；The optical property of liquid is measured,
That is magneto-optic coupling effect；
Apply magnetic field when two electrode plates pass through wire connecting power, while to container, measures the saturating of multiferroic liquid
Optical property, i.e. magnetoelectricity optical coupling effect；
When two electrode plates pass through wire connecting power, while when applying magnetic field to container, then container is placed in alternating temperature
Middle heating, and measure the light transmission of multiferroic liquid, i.e. magnetoelectricity photo-thermal coupling effect；
Apply magnetic field when two electrode plates pass through wire connecting power, while to container, then container is placed in and becomes middle benefit gas
When heating, a standpipe is blocked, applies air pressure to another standpipe, changes the pressure of multiferroic liquid in container, and survey
Measure the light transmission of multiferroic liquid, i.e. magnetoelectricity light Thermal-mechanical Coupling effect.
Preferably, in step 1, two standpipes are blocked with rubber stopper or glue.
Preferably, the conducting wire is weldingly fixed on journal stirrup.
By adopting the above-described technical solution, the utility model has the advantages that：
The utility model contains multiferroic liquid using container, and container is made of nonmagnetic, transparent, insulating materials, holds
Upper end, the lower end of device are respectively equipped with electrode plate made of transparent material, can by container test multiferroic liquid magnetic property,
Electrical property, optical property (such as projection of light), the various of multiferroic liquid can also be easily measured by the utility model
Coupling performance.
The utility model is not influenced when injecting multiferroic liquid by air pressure, hydraulic pressure, is more held when injecting multiferroic liquid
Easily.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Reference numeral
In attached drawing, 1 is container, and 2 be standpipe, and 3 be electrode plate, and 4 be journal stirrup, and 5 be conducting wire.
Specific implementation mode
Referring to Fig. 1, it is a kind of test multiferroic liquid device, include for contain multiferroic liquid it is nonmagnetic, transparent,
Container made of insulating materials, the container is cylindrical, it is of course also possible to be other shapes, such as it is rectangular.Why require
Insulation is for example when dielectric properties, electric conductivity, to need to install in the top and bottom of container because measuring electric property
Electrode plate.It can ensure that power-on and power-off pole plate is not short-circuited if container insulation at this time；Certainly, if measure translucency,
There is no need to electrode plates；It is transparent, it is desirable to that the state of receptacle can be observed in real time.Container cannot be too high, in the present embodiment,
In 1cm hereinafter, if container is too high, error is very big when measuring magnetic；In addition, if too high, measure each under electric field action
When kind performance change, need to apply very high voltage.Upper end, the lower end of the container be respectively equipped with it is transparent, conductive, without magnetic
Property material (such as transparent conducting glass, ITO, FTO etc.) made of circular electrode plates, the diameter of circular electrode plates, which is more than or equal to, to be held
The internal diameter of device forms the sealing to container upper end, lower end.Why need electrode plate transparent, is to consider to measure translucency
When need；Only so needing electrode plate, measurement electric property is allowed for.Why need nonmagnetic, allows for survey
When amount is magnetic, electrode plate not will produce additional magnetic signal.If only measuring one of which performance, without so more
It is required that.In the present embodiment, the electrode plate is adhesively fixed on the upper end or lower end of container.Certainly, electrode plate can also be other
Shape, such as square.If circle, advantage is exactly that edge effect is weaker, if not circle, is then just had in edges and corners
Larger electric field easy tos produce electric discharge, punch-through.
It being set on the electrode plate of the upper end of the container there are two connecting hole, in the present embodiment, connection bore dia is less than 5mm,
Being advisable with not influence electrode plate, (diameter is the smaller the better, but cannot be less than 35 μm, otherwise can not install standpipe, is also unfavorable for more iron
The loading of property liquid).Standpipe made of an eradication edge, non-magnetic material is separately connected in each connecting hole, each standpipe connects with corresponding
Connect sealing between hole (it is required that：Standpipe cannot go deep into inside cylindrical chamber, and diameter wants small), in the present embodiment, each standpipe with it is right
It answers and is sealed with insulating silicon glue bond between connecting hole, wherein a standpipe is another for entering multiferroic liquid injection in container
Root standpipe is used to the air in container being discharged.
Journal stirrup of the side setting of the electrode plate for connecting wire, the upper end of the container, the journal stirrup of lower end are in water
Square to be symmetrical arranged, to avoid when line by two circular electrode plates short circuits.
A method of multiferroic liquid being tested, including a kind of device of test multiferroic liquid, test method include：
Step 1. tests preceding preparation
Multiferroic liquid to be measured is injected from a standpipe, so that the gas in container is discharged from another standpipe, works as position
When the liquid level of multiferroic liquid in two standpipes is higher than container, ensures there is no gas in container at this time, filled in container more
Iron liquid, multiferroic liquid are contacted with two electrode plates simultaneously, are stopped injection multiferroic liquid, are blocked two standpipes, it is ensured that
Container seals；Conducting wire is weldingly fixed on journal stirrup.
Step 2. test process
Two electrode plates are wired to dielectric analysis instrument, measure the dielectricity of multiferroic liquid；
When two electrode plates are wired to dielectric analysis instrument, container is placed in and becomes middle benefit gas heating, measures more iron
Dielectric constant, the dielectric loss variation with temperature curve of property liquid；
Two electrode plates are wired to ferroelectricity analyzer, measure ferroelectric hysteresis loop, the electric leakage electricity of multiferroic liquid
Current density；
By two electrode plates by wire connecting power, measure the light transmission of multiferroic liquid under electric field action, i.e., it is electric
Optical coupling effect；Measure the magnetism of multiferroic liquid under electric field action, i.e. magnetoelectric effect；
Apply magnetic field to container, measures the electric property of liquid, i.e. magnetoelectric effect；The optical property of liquid is measured,
That is magneto-optic coupling effect；
Apply magnetic field when two electrode plates pass through wire connecting power, while to container, measures the saturating of multiferroic liquid
Optical property, i.e. magnetoelectricity optical coupling effect；
When two electrode plates pass through wire connecting power, while when applying magnetic field to container, then container is placed in alternating temperature
Middle heating, and measure the light transmission of multiferroic liquid, i.e. magnetoelectricity photo-thermal coupling effect；
Apply magnetic field when two electrode plates pass through wire connecting power, while to container, then container is placed in and becomes middle benefit gas
When heating, a standpipe is blocked, applies air pressure to another standpipe, changes the pressure of multiferroic liquid in container, and survey
Measure the light transmission of multiferroic liquid, i.e. magnetoelectricity light Thermal-mechanical Coupling effect.
Finally illustrate, preferred embodiment above is merely intended for describing the technical solutions of the present application, but not for limiting the present application, to the greatest extent
Pipe has been described in detail the utility model by above preferred embodiment, but those skilled in the art should manage
Solution, can in the form and details make it various changes, without departing from the utility model claims book institute
The range of restriction.
Claims (4)
1. a kind of device of test multiferroic liquid, which is characterized in that include for containing the nonmagnetic, saturating of multiferroic liquid
Container made of bright, insulating materials, upper end, the lower end of the container are respectively equipped with electrode plate made of transparent, non-magnetic material,
The sealing to container upper end, lower end is formed, is set on the electrode plate of the upper end of the container there are two connecting hole, each connecting hole is interior to be divided
One edge, standpipe made of non-magnetic material Lian Jie not be thoroughly done away with, each standpipe and being correspondingly connected between hole seals, wherein a standpipe
For by multiferroic liquid injecting container, another standpipe to be used to the air in container being discharged.
2. a kind of device of test multiferroic liquid according to claim 1, which is characterized in that the side of the electrode plate
Journal stirrup for connecting wire is set, and the upper end of the container, the journal stirrup of lower end are symmetrical arranged in the horizontal direction.
3. a kind of device of test multiferroic liquid according to claim 1, which is characterized in that the container is in pipe
Shape.
4. a kind of device of test multiferroic liquid according to claim 1, which is characterized in that the standpipe is adhesively fixed
In connecting hole on container side wall, the electrode plate is adhesively fixed on the upper end or lower end of container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820145573.7U CN207798727U (en) | 2018-01-29 | 2018-01-29 | A kind of device of test multiferroic liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820145573.7U CN207798727U (en) | 2018-01-29 | 2018-01-29 | A kind of device of test multiferroic liquid |
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| Publication Number | Publication Date |
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| CN207798727U true CN207798727U (en) | 2018-08-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108254413A (en) * | 2018-01-29 | 2018-07-06 | 重庆科技学院 | A kind of device and method for testing multiferroic liquid |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108254413A (en) * | 2018-01-29 | 2018-07-06 | 重庆科技学院 | A kind of device and method for testing multiferroic liquid |
| CN108254413B (en) * | 2018-01-29 | 2023-10-27 | 重庆科技学院 | Device and method for testing multiferroic liquid |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20180831 Termination date: 20210129 |