CN102520380A - Mapping method of magnetoelectric loop wire of magnetoelectric material - Google Patents
Mapping method of magnetoelectric loop wire of magnetoelectric material Download PDFInfo
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- CN102520380A CN102520380A CN2011104210128A CN201110421012A CN102520380A CN 102520380 A CN102520380 A CN 102520380A CN 2011104210128 A CN2011104210128 A CN 2011104210128A CN 201110421012 A CN201110421012 A CN 201110421012A CN 102520380 A CN102520380 A CN 102520380A
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Abstract
The invention relates to a m magnetoelectric material, especially to a mapping method of a magnetoelectric loop wire of a magnetoelectric material. Mapping is carried out on a series of alternating magnetoelectric signals that include amplitudes and phases as well as are measured by under a direct current magnetic field and are stored in a text file in a way of a polar coordinate and a rectangular coordinate, and a polar coordinate plate can be called as a signal complex plane; an interference vector generated by Faraday induction of a lead wire is determined as well as interference vector deduction is carried out on the magnetoelectric signals measured at all the direct current magnetic fields, so that rectified magnetoelectric signals are obtained; and mapping is again carried out on the magnetoelectric signals that have been processed by the interference vector deduction in the complex plane as well as any point is taken on a vertical symmetric axis of a magnetoelectric 8-shaped loop wire to arrange the size of an overturned phase; according to the overturned phase, a magnetoelectric signal that is arranged above the overturned phase is a positive one and a magnetoelectric signal that is arranged below the overturned phase is a negative one; and the magnetoelectric signals that have been arranged with positive and negative properties are used to form a vertical coordinate and the direct current magnetic fields are used to form a horizontal coordinate, so that a magnetoelectric loop wire is obtained by mapping.
Description
Technical field
The present invention relates to magnetoelectric material, especially relate to a kind of drawing method of magnetoelectric material magnetoelectric loop wire.
Background technology
Magnetoelectric effect is that some many iron property compounds and ferroelectric/ferromagnetic composite material are applied the physical influence that magnetic field produces electric field, and the material with magnetoelectric effect is referred to as magnetoelectric material.At present; The method that the measurement magnetoelectric effect is generally adopted is a dynamic method; Detailed process is with the magnetic field of a direct current magnetoelectric material to be setovered, and voltage or the charge signal that produce on the magnetoelectric material this moment are measured in less alternation perturbation magnetic field of stack on D.C. magnetic field again.Because ferromagnetic magnetostriction behavior and D.C. magnetic field orientation independent, so the size of magnetoelectric effect is symmetrical along with the change curve of D.C. magnetic field.Moreover; Because the break-in meeting of D.C. magnetic field causes 180 ° of upsets of magnetoelectricity signal phase; Therefore though the signal of the magnetoelectric effect that measures of dynamic method is an alternation; Do not have positive and negative branch, but can define the positive and negative of magnetoelectric effect, thereby make the magnetoelectric loop wire of the similar magnetic hysteresis loop of shape by its phase place.Magnetoelectric loop wire is to have defined the variation relation of positive and negative magnetoelectricity signal afterwards along with D.C. magnetic field.
In the actual measurement process of dynamic method, because the lead-in wire of magnetoelectric material also is in the perturbation magnetic field of alternation, the loop that lead-in wire constitutes is equivalent to the coil of an individual pen in magnetic field, so the lead-in wire of magnetoelectric material can be introduced some undesired signals.According to Faraday's law of induction, coil will produce induced voltage in alternating magnetic field.So measured signal does not only comprise the voltage signal that magnetoelectric effect produces merely, faraday's induced voltage signal of the lead-in wire that also superposeed usually.When the magnetoelectricity voltage signal is fainter; The influence of faraday's induced voltage signal will become very significantly; Therefore often find that measured signal along with the variation of D.C. magnetic field has demonstrated the asymmetry of runing counter to physical principle, is difficult to truly describe the variation relation of magnetoelectric effect with D.C. magnetic field.
When utilizing dynamic method to measure magnetoelectric effect, magnetoelectric material also exists the problem how magnetoelectric loop wire is drawn.At present, general in the world disposal route is: when magnetoelectricity signal and perturbation magnetic field same-phase, the size of magnetoelectricity signal just is set to, and is negative during antiphase.The applicant discloses a kind of magnetoelectric loop wire test method and device thereof of continuously applying scanning magnetic field in Chinese patent CN101788653A; A kind of simple disposal route is proposed; Be magnetoelectricity signal and perturbation magnetic field phase differential greater than 0 o'clock for just; Less than 0 o'clock was negative, for the higher measurement occasion of signal to noise ratio (S/N ratio), had result of use preferably.If but undesired signal is stronger in measuring, the magnetoelectricity signal of the undesired signal that superposeed is difficult to have homophase and anti-phase relation simply with perturbation magnetic field, will be difficult to find a critical upset phase place, draws very difficulty of magnetoelectric loop wire.
Summary of the invention
The objective of the invention is to provides a kind of drawing method of magnetoelectric material magnetoelectric loop wire to the mapping of existing magnetoelectric material magnetoelectric loop wire problem such as difficulty relatively.
The present invention includes following steps:
A series of alternating magnetoelectric signals that comprise amplitude and phase place that under D.C. magnetic field, record that 1) will be kept in the text are figure with the mode of polar coordinates and rectangular coordinate, and the polar coordinates plane also can be described as the signal complex plane;
2) faraday who judges lead-in wire responds to the interference vector of generation and the magnetoelectricity signal that records under each D.C. magnetic field is all deducted the magnetoelectricity signal after obtaining correcting;
3) will deduct interference vector magnetoelectricity signal afterwards maps on complex plane again; Take up an official post at the perpendicular axis of symmetry of magnetoelectricity 8 word loop lines and to get the size that any is provided with the upset phase place,, be provided with and be positioned at the above magnetoelectricity signal of upset phase place for just according to the upset phase place; The magnetoelectricity signal that is provided with below the upset phase place is negative; So that positive and negative magnetoelectricity signal to be set is ordinate, and D.C. magnetic field is a horizontal ordinate, and mapping obtains magnetoelectric loop wire.
In step 1), said alternating magnetoelectric signal comprises the magnetoelectric loop wire data of time, magnetic field, amplitude and phase data; The said concrete grammar of being figure with polar coordinates is: under polar coordinates; A pair of data under each magnetic field comprise voltage signal amplitude R and phase theta, a point (R in the corresponding polar coordinates; θ); According to the Measuring Time order, each phase place under different magnetic field is linked to each other with the corresponding point of amplitude, obtain the magnetoelectric loop wire under the original undressed polar coordinate system; The said concrete grammar of being figure with rectangular coordinate is: under rectangular coordinate system; Each comprises amplitude and magnetic field to data, a point in the corresponding rectangular coordinate system; According to the Measuring Time order all points are linked to each other, obtain the magnetoelectric loop wire under the original undressed rectangular coordinate system.
When the present invention adopts dynamic method to measure the magnetoelectric material magnetoelectric effect with the variation relation of D.C. magnetic field, the alternating magnetoelectric signal that comprise amplitude and phase place of original signal under a series of D.C. magnetic fields, recording.Technical scheme of the present invention is that the alternating magnetoelectric signal that comprises amplitude and phase place is mapped in complex plane; The faraday who in complex plane, deducts lead-in wire then responds to the undesired signal that is produced; Obtain pure magnetoelectricity signal; The horizontal symmetrical center line of selecting the magnetoelectricity signal pattern is at last carried out positive and negative upset as critical upset phase place to the magnetoelectricity signal, obtains the magnetoelectric loop wire of contour smoothing.
Compare with the drawing method of existing magnetoelectric material magnetoelectric loop wire, the present invention has following outstanding advantage:
1) under complex plane, the undesired signal that the faraday who observes lead-in wire more easily the responds to generation effect after the magnetoelectricity signal that is added to is convenient to judge and obtain interference vector.
2) under complex plane, observe the symmetry of magnetoelectricity signal more easily, be convenient to obtain the upset phase place.
3) analysis and the rectification under the employing complex plane, the influence of having deducted undesired signal has obtained pure alternating magnetoelectric signal.
4), also can obtain the magnetoelectric loop wire of contour smoothing to fainter magnetoelectricity signal.
Description of drawings
Fig. 1 is the magnetoelectric loop wire under the undressed polar coordinate system.
Fig. 2 is the magnetoelectric loop wire under the undressed rectangular coordinate system.In Fig. 2, horizontal ordinate is magnetic field (T), and ordinate is voltage (V).
Fig. 3 is the magnetoelectric loop wire under the polar coordinate system behind the removal faraday inductive disturbance vector.
Fig. 4 is the magnetoelectric loop wire under the rectangular coordinate system behind the removal faraday inductive disturbance vector.In Fig. 4, horizontal ordinate is magnetic field (T), and ordinate is voltage (V).
Fig. 5 is the data figure line contrast after data figure line and the present invention after list of references [3] simple process handles.In Fig. 5, horizontal ordinate is magnetic field (T), and ordinate is voltage (V); Curve 1 is the data figure line after list of references [3] simple process, and curve 2 is the data figure line of the present invention after handling.
Embodiment
Following examples will combine accompanying drawing that the present invention is further described.
Concrete grammar of the present invention is following:
1) will be kept at the magnetoelectric loop wire data that comprise time, magnetic field, amplitude and phase data that need in the text to handle maps under polar coordinates, rectangular coordinate system.Under polar coordinates; A point (R in the corresponding polar coordinates of a pair of data under each magnetic field (voltage signal amplitude R and phase theta); θ); According to the Measuring Time order, each phase place under different magnetic field is linked to each other with the corresponding point of amplitude, just obtained the magnetoelectric loop wire (like Fig. 1) under the original undressed polar coordinate system.Under rectangular coordinate system, each links to each other all points according to the Measuring Time order to a point in the corresponding rectangular coordinate system of data (amplitude and magnetic field), just obtains the magnetoelectric loop wire (like Fig. 2) under the original undressed rectangular coordinate system.Under polar coordinates, the center of curve is not at the polar coordinates initial point, and under rectangular coordinate system, the curve left and right sides is asymmetric.
2) the Faradic electricity magnetic induction interference vector of judgement and removal magnetoelectric loop wire.Under complex plane coordinate (being polar coordinates), observe interference vector (being the vector of hysteresis loop misalignment initial point).Find the center of magnetoelectricity hysteresis loop, then this center is moved on to complex plane center (being equivalent to origin translation) and promptly accomplish and go interference work, obtain removing the magnetoelectric loop wire of faraday's induced interference signal.At polar coordinates, the center of the magnetoelectric loop wire that obtains is at polar origin position (like Fig. 3); Under rectangular coordinate system, the magnetoelectric loop wire that obtains is symmetrical (like Fig. 4).
3) according to phase place magnetoelectric loop wire is overturn.Resulting magnetoelectric loop wire (Fig. 5 after the disposal route that in the magnetoelectric loop wire test method of the disclosed a kind of continuously applying scanning magnetic field of Chinese patent CN101788653A and device thereof, proposes according to the applicant is carried out simple process; Curve 1) can find out that its profile is rough, particularly the amplifier section loop line has tangible complications.On the normal direction of the perpendicular axis of symmetry of complex plane magnetoelectricity 8 word loop lines, get a bit, be divided into two parts [θ-180 °, θ] and [θ, θ+180 °] to complex plane as the phase place of overturning with this point place angle θ (θ＞0).Phase place is set is positioned at the interior magnetoelectricity signal of [θ-180 °, θ] scope, phase place is set is positioned at [θ for just; θ+180 °] magnetoelectricity signal in the scope is for negative, is ordinate so that positive and negative magnetoelectricity signal to be set, and D.C. magnetic field is a horizontal ordinate; Just obtain the magnetoelectric loop wire (Fig. 5, curve 2) of contour smoothing.Comparison curves 1,2 can be learnt, the magnetoelectric loop wire contour smoothing that process this method obtains, and the tortuous apparent error of amplifier section loop line also obtains fine solution.
Claims (4)
1. the drawing method of a magnetoelectric material magnetoelectric loop wire is characterized in that may further comprise the steps:
A series of alternating magnetoelectric signals that comprise amplitude and phase place that under D.C. magnetic field, record that 1) will be kept in the text are figure with the mode of polar coordinates and rectangular coordinate, and the polar coordinates plane also can be described as the signal complex plane;
2) faraday who judges lead-in wire responds to the interference vector of generation and the magnetoelectricity signal that records under each D.C. magnetic field is all deducted the magnetoelectricity signal after obtaining correcting;
3) will deduct interference vector magnetoelectricity signal afterwards maps on complex plane again; Take up an official post at the perpendicular axis of symmetry of magnetoelectricity 8 word loop lines and to get the size that any is provided with the upset phase place,, be provided with and be positioned at the above magnetoelectricity signal of upset phase place for just according to the upset phase place; The magnetoelectricity signal that is provided with below the upset phase place is negative; So that positive and negative magnetoelectricity signal to be set is ordinate, and D.C. magnetic field is a horizontal ordinate, and mapping obtains magnetoelectric loop wire.
2. the drawing method of a kind of magnetoelectric material magnetoelectric loop wire as claimed in claim 1 is characterized in that in step 1), and said alternating magnetoelectric signal comprises the magnetoelectric loop wire data of time, magnetic field, amplitude and phase data.
3. the drawing method of a kind of magnetoelectric material magnetoelectric loop wire as claimed in claim 1 is characterized in that in step 1), and the said concrete grammar of being figure with polar coordinates is: under polar coordinates; A pair of data under each magnetic field comprise voltage signal amplitude R and phase theta, a point (R in the corresponding polar coordinates; θ); According to the Measuring Time order, each phase place under different magnetic field is linked to each other with the corresponding point of amplitude, obtain the magnetoelectric loop wire under the original undressed polar coordinate system.
4. the drawing method of a kind of magnetoelectric material magnetoelectric loop wire as claimed in claim 1; It is characterized in that in step 1) the said concrete grammar of being figure with rectangular coordinate is: under rectangular coordinate system, each is to data; Comprise amplitude and magnetic field; A point in the corresponding rectangular coordinate system links to each other all points according to the Measuring Time order, obtains the magnetoelectric loop wire under the original undressed rectangular coordinate system.
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| CN 201110421012 CN102520380B (en) | 2011-12-15 | 2011-12-15 | Mapping method of magnetoelectric loop wire of magnetoelectric material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104950270A (en) * | 2015-06-04 | 2015-09-30 | 湖南省联众科技有限公司 | Hysteresis loop display method and system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU836608A1 (en) * | 1979-07-25 | 1981-06-07 | Отдел Физики Неразрушающего Контроляан Белорусской Ccp | Automatic magnetizing device |
| JPS62187268A (en) * | 1986-02-13 | 1987-08-15 | Sony Corp | Circuit for high sensitive b-h loop tracer |
| US5028869A (en) * | 1988-04-23 | 1991-07-02 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forshung E.V. | Process and apparatus for the nondestructive measuring of magnetic properties of a test body, by detecting a tangential magnetic field and deriving harmonic components thereof |
| CN1963556A (en) * | 2006-11-24 | 2007-05-16 | 中国计量科学研究院 | Apparatus for integrality checking proportion of cryo-current comparator and the method thereof |
| CN101509961A (en) * | 2009-03-23 | 2009-08-19 | 哈尔滨工业大学 | Bar permanent magnet section magnetic-flux measurement apparatus and measurement method thereof |
| CN101520495A (en) * | 2009-03-02 | 2009-09-02 | 重庆大学 | Device for mapping magnetizing characteristic curve of ferromagnetic materials and mapping method thereof |
| CN101788653A (en) * | 2010-02-11 | 2010-07-28 | 厦门大学 | Magnetoelectric loop wire test method for continuously applying scanning magnetic field and device thereof |
| CN201917648U (en) * | 2010-05-13 | 2011-08-03 | 中南民族大学 | High pulse magnetic field measuring device through electromagnetic induction method |
-
2011
- 2011-12-15 CN CN 201110421012 patent/CN102520380B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU836608A1 (en) * | 1979-07-25 | 1981-06-07 | Отдел Физики Неразрушающего Контроляан Белорусской Ccp | Automatic magnetizing device |
| JPS62187268A (en) * | 1986-02-13 | 1987-08-15 | Sony Corp | Circuit for high sensitive b-h loop tracer |
| US5028869A (en) * | 1988-04-23 | 1991-07-02 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forshung E.V. | Process and apparatus for the nondestructive measuring of magnetic properties of a test body, by detecting a tangential magnetic field and deriving harmonic components thereof |
| CN1963556A (en) * | 2006-11-24 | 2007-05-16 | 中国计量科学研究院 | Apparatus for integrality checking proportion of cryo-current comparator and the method thereof |
| CN101520495A (en) * | 2009-03-02 | 2009-09-02 | 重庆大学 | Device for mapping magnetizing characteristic curve of ferromagnetic materials and mapping method thereof |
| CN101509961A (en) * | 2009-03-23 | 2009-08-19 | 哈尔滨工业大学 | Bar permanent magnet section magnetic-flux measurement apparatus and measurement method thereof |
| CN101788653A (en) * | 2010-02-11 | 2010-07-28 | 厦门大学 | Magnetoelectric loop wire test method for continuously applying scanning magnetic field and device thereof |
| CN201917648U (en) * | 2010-05-13 | 2011-08-03 | 中南民族大学 | High pulse magnetic field measuring device through electromagnetic induction method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104950270A (en) * | 2015-06-04 | 2015-09-30 | 湖南省联众科技有限公司 | Hysteresis loop display method and system |
| CN104950270B (en) * | 2015-06-04 | 2019-05-31 | 湖南省联众科技有限公司 | Hysteresis loop display methods and display system |
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