CN104198282A - Force-magnetism-electricity multi-field coupling measuring system - Google Patents
Force-magnetism-electricity multi-field coupling measuring system Download PDFInfo
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- CN104198282A CN104198282A CN201410400335.2A CN201410400335A CN104198282A CN 104198282 A CN104198282 A CN 104198282A CN 201410400335 A CN201410400335 A CN 201410400335A CN 104198282 A CN104198282 A CN 104198282A
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Abstract
The invention provides a force-magnetism-electricity multi-field coupling measuring system. The force-magnetism-electricity multi-field coupling measuring system comprises a force loading module and a magnetism loading module, wherein the force loading module comprises a connecting rod, a fixing base, a Helmholtz coil, an aluminum rack and a force sensor; the magnetism loading module comprises a processing module, the processing module comprises a signal generator, a force display, a lock-in amplifier and a teslameter; the signal generator is connected with the Helmholtz coil, the force display is connected with the force sensor, the lock-in amplifier is connected with the upper surface and the lower surface of a to-be-tested piece, the force loading module is nested in a magnetism loading system and the relative position of the force loading module and the magnetism loading system are fixed by the fixing base, the fixing base and the aluminum rack are fixed by a fastening part, and the force sensor is fixed on the aluminum rack. The force-magnetism-electricity multi-field coupling measuring system can measure the magnetoelectricity property of a composite material when different force fields and different magnetic fields are coupled, and has simple structure, convenience in operation and high repeatability.
Description
Technical field
The present invention is specifically related to a kind of power magnetoelectricity multi-field coupling measuring system.
Background technology
Magnetic electric compound material is a kind of widely used intellectual material, its application broadness, and Service Environment is very complicated.Magnetic electric compound material unavoidably can be subject to the field of force and disturb in actual Service Environment.This interference is day by day subject at present scientific research personnel and payes attention to, and this interference can cause layered electromagnetic to occur the phenomenon of distortion on the one hand.On the other hand, may cause some magnetoelectric material output signal to be amplified when this interference and magnetic Field Coupling.Therefore, scientific research personnel carries out the research of many couplings to magnetic electric compound material, wishes on the one hand to inquire into interference distortion rule, provides correction factor, revises output signal, ensures the accuracy of output signal.Wish on the other hand the gain of research coupled interference to magnetic-electric coefficient, reach the effect of amplifying output signal, improve output signal, the usable range of expansion magnetic electric compound material.But traditional magnetic electric compound material research focuses on magnetic field, the impact of temperature on magnetic electricity performance, cannot solve actual use time, magnetic electric compound material is also subject to field of force interference problem.
Summary of the invention
The present invention is intended to solve at least to a certain extent one of technical matters in above-mentioned correlation technique.
For this reason, the object of the invention is to propose a kind of power magnetoelectricity multi-field coupling measuring system, the measurement of compound substance magnetic electricity performance when this system can realize the coupling of the different field of forces, different magnetic field, and this system architecture is simple, easy to operate, repeatable high.
To achieve these goals, embodiments of the invention have proposed a kind of power magnetoelectricity multi-field coupling measuring system, comprising: power load-on module, and described power load-on module comprises connecting link, fixed pedestal, helmholtz coil, aluminium frame and power sensor; Magnetic load-on module, described magnetic load-on module comprises: processing module, described processing module comprises signal generator, power display, lock-in amplifier and teslameter; Wherein, described signal generator is connected with described helmholtz coil, described power display is connected with described power sensor, described lock-in amplifier is connected with test specimen upper and lower surface to be measured, described power load-on module is nested in described magnetic loading system, and fix its relative position by described fixed pedestal, and described fixed pedestal and described aluminium frame are fixed by securing member, and described power sensor is fixed on described aluminium frame.
According to the power magnetoelectricity multi-field coupling measuring system of the embodiment of the present invention, can simulate the actual working environment of magnetic electric compound material complexity.By analysis and the research of the data in different operating mode coupling situations, can show that magnetic-couple of force closes the impact loading magnetic-electric coefficient.When combining with theoretical analysis can draw the field of force to work, the interference coefficient of magnetic-electric coefficient, revises the magnetoelectricity data of measuring, the accuracy of magnetoelectricity data while having ensured work.Also can utilize this interference, improve the magnetic-electric coefficient numerical value of measuring simultaneously.And this system has easy to use, compact conformation, the advantage such as easy to operate, the response investigations of magnetic electric compound material can realize the different field of forces, static magnetic field, alternating magnetic field coupling time.
In addition, luminous power magnetoelectricity multi-field coupling measuring system according to the above embodiment of the present invention can also have following additional technical characterictic:
In some instances, described power load-on module also comprises: tight split nut, described tight split nut is fixedly embedded on described aluminium frame, and is connected with described connecting link.
In some instances, stating connecting link is threaded connecting link.
In some instances, described teslameter is connected with tesla probe by signal wire.
In some instances, described processing module also comprises D.C. magnetic field power supply, and described D.C. magnetic field power supply is connected with described magnetic load-on module by signal wire.
In some instances, described power load-on module also comprises: both sides offset qualification sheet, described both sides offset qualification sheet and described aluminium frame are fixed by four securing members.
In some instances, described power load-on module also comprises: activity pressure piece, described activity pressure piece is embedded on the chute between described aluminium frame and described both sides offset qualification sheet.
In some instances, described processing module also comprises strainmeter, and described strainmeter is pasted foil gauge with test specimen to be measured surface and is connected.
In some instances, described signal generator, power display, lock-in amplifier, strainmeter, D.C. magnetic field power supply and teslameter are fixedly installed on a multilayer movable platform.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Brief description of the drawings
Above-mentioned and/or additional aspect of the present invention and advantage accompanying drawing below combination is understood becoming the description of embodiment obviously and easily, wherein:
Fig. 1 is the structural principle schematic diagram of power magnetoelectricity multi-field coupling measuring system according to an embodiment of the invention;
Fig. 2 is the structural principle schematic diagram of power load-on module according to an embodiment of the invention; And
Fig. 3 is test specimen modes of emplacement schematic diagram to be measured according to an embodiment of the invention.
Embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Be exemplary below by the embodiment being described with reference to the drawings, only for explaining the present invention, and can not be interpreted as limitation of the present invention.
Describe according to the power magnetoelectricity multi-field coupling measuring system of the embodiment of the present invention below in conjunction with accompanying drawing.
Fig. 1 is the structural principle schematic diagram of power magnetoelectricity multi-field coupling measuring system according to an embodiment of the invention.As shown in Figure 1, power magnetoelectricity multi-field coupling measuring system according to an embodiment of the invention, comprising: power load-on module 1, magnetic load-on module 2 and processing module 3.
Wherein, power load-on module 1 comprises connecting link 16, fixed pedestal 18, helmholtz coil 20, aluminium frame 21 and power sensor 22.In some instances, connecting link 16 is for example threaded connecting link.
Magnetic load-on module 2 is connected with power load-on module 1.
Processing module 3 comprises signal generator 4, power display 5, lock-in amplifier 6 and teslameter 9.In some instances, teslameter 9 is for example connected with teslameter probe by signal wire.
Wherein, as depicted in figs. 1 and 2, signal generator 4 is connected with helmholtz coil 20 by interface 13, power display 5 is connected with power sensor 22 by interface 12, lock-in amplifier 6 is connected with test specimen upper and lower surface to be measured by interface 15, power load-on module 1 is nested in magnetic load-on module 2, and fix its relative position by fixed pedestal 18, fixed pedestal 18 is fixed by securing member with aluminium frame 21, power sensor 22 is fixed on aluminium frame 21, more specifically, power sensor 22 is fixed on aluminium frame 21 and protrudes on square bar.
Further, as depicted in figs. 1 and 2, power load-on module 1 also comprises: tight split nut 19, both sides offset qualification sheet 17 and activity pressure piece 24.Wherein, tight split nut 19 is fixedly embedded on aluminium frame 21 and can not rotates, and is connected with connecting link 16.Both sides offset qualification sheet 17 is fixed by four securing members with aluminium frame 21.Activity pressure piece 24 is embedded in the middle of the chute 25 between aluminium frame 21 and both sides offset qualification sheet 17, thereby limited activity pressure piece 24, its intelligence is slided up and down.
As depicted in figs. 1 and 2, processing module 3 also comprises: strainmeter 7 and D.C. magnetic field power supply 8.Wherein, strainmeter 7 is connected with test specimen to be measured surface stickup foil gauge by interface 14.D.C. magnetic field power supply 8 is connected with magnetic load-on module 2 by signal wire 11.
In some instances, as depicted in figs. 1 and 2, helmholtz coil 20, power sensor 22, test specimen upper and lower surface to be measured, test specimen to be measured surface paste that foil gauge 26 draws signal wire be incorporated into unified connection terminal, interface is respectively 13,12,15 and 14.
In another example, signal generator 4, power display 5, lock-in amplifier 6, strainmeter 7, D.C. magnetic field power supply 8 and teslameter 9 are fixedly installed on a multilayer movable platform.
As a concrete example, shown in Fig. 3, the measuring principle of this power magnetoelectricity multi-field coupling measuring system is summarized as: first, test specimen to be measured is placed on specimen stage 23, because threaded connecting link 16 is connected with tight split nut 19, in the time being rotationally connected bar 16, connecting link 16 is to bottom offset.Because having limited activity pressure piece 24 with the chute 25 in the middle of both sides offset qualification sheet 17, special aluminium frame 21 makes it to slide up and down, therefore, connecting link 16 drives activity pressure piece 24 to move down to treat test block and exerts pressure, and pressure size is by power sensor 22 and 5 interpretations of power display.And due to threaded connecting link 16 and the locking phenomenon of tight split nut 19, therefore, it is constant that pressure keeps.
Further, in example, the key step of the measuring process of this measuring system is as follows:
Step 1, regulates and installs: test specimen to be measured is placed on specimen stage, and the position of rotating threaded connecting link makes test specimen to be measured keep small pressure, and ensures that test specimen to be measured is not moved.
Step 2, parameter setting: by the corresponding parameter of Input Forces sensor, set the parameters of power display, ensure that pressure reading is accurate.
Step 3, test: opening signal generator, to the alternating current of helmholtz coil input characteristic frequency, specific voltage.Open static magnetic field power supply, to electromagnet input power.Open lock-in amplifier, receive piezoelectric upper and lower surface voltage.Open strainmeter, measure the strained situation of magnetic electric compound material.Rotate threaded connecting link, to drive activity pressure piece to test specimen certain pressure to be measured, and read by power display.
Step 4, experimental result processing: the strain of corresponding magnetic electric compound material output, the analysis of magnetic-electric coefficient when to different couple state, can show that many couplings affect rule to magnetic electric compound material.
According to the power magnetoelectricity multi-field coupling measuring system of the embodiment of the present invention, can simulate the actual working environment of magnetic electric compound material complexity.By analysis and the research of the data in different operating mode coupling situations, can show that magnetic-couple of force closes the impact loading magnetic-electric coefficient.When combining with theoretical analysis can draw the field of force to work, the interference coefficient of magnetic-electric coefficient, revises the magnetoelectricity data of measuring, the accuracy of magnetoelectricity data while having ensured work.Also can utilize this interference, improve the magnetic-electric coefficient numerical value of measuring simultaneously.And this system has easy to use, compact conformation, the advantage such as easy to operate, the response investigations of magnetic electric compound material can realize the different field of forces, static magnetic field, alternating magnetic field coupling time.
In description of the invention, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axially ", " radially ", orientation or the position relationship of instructions such as " circumferentially " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of device or the element of instruction or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as instruction or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, at least one this feature can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the invention, the implication of " multiple " is at least two, for example two, and three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or integral; Can be mechanical connection, can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless separately there is clear and definite restriction.For the ordinary skill in the art, can understand as the case may be above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, First Characteristic Second Characteristic " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary indirect contact.And, First Characteristic Second Characteristic " on ", " top " and " above " but First Characteristic directly over Second Characteristic or oblique upper, or only represent that First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " can be First Characteristic under Second Characteristic or tiltedly, or only represent that First Characteristic level height is less than Second Characteristic.
In the description of this instructions, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, to the schematic statement of above-mentioned term not must for be identical embodiment or example.And, specific features, structure, material or the feature of description can one or more embodiment in office or example in suitable mode combination.In addition,, not conflicting in the situation that, those skilled in the art can carry out combination and combination by the feature of the different embodiment that describe in this instructions or example and different embodiment or example.
Although illustrated and described embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, amendment, replacement and modification.
Claims (9)
1. a power magnetoelectricity multi-field coupling measuring system, is characterized in that, comprising:
Power load-on module, described power load-on module comprises connecting link, fixed pedestal, helmholtz coil, aluminium frame and power sensor;
Magnetic load-on module, described magnetic load-on module is connected with described power load-on module;
Processing module, described processing module comprises signal generator, power display, lock-in amplifier and teslameter;
Wherein, described signal generator is connected with described helmholtz coil, described power display is connected with described power sensor, described lock-in amplifier is connected with test specimen upper and lower surface to be measured, described power load-on module is nested in described magnetic load-on module, and fix its relative position by described fixed pedestal, and described fixed pedestal and described aluminium frame are fixed by securing member, and described power sensor is fixed on described aluminium frame.
2. power magnetoelectricity multi-field coupling measuring system according to claim 1, is characterized in that, described power load-on module also comprises: tight split nut, described tight split nut is fixedly embedded on described aluminium frame, and is connected with described connecting link.
3. power magnetoelectricity multi-field coupling measuring system according to claim 2, is characterized in that, described connecting link is threaded connecting link.
4. power magnetoelectricity multi-field coupling measuring system according to claim 1, is characterized in that, described teslameter is connected with tesla probe by signal wire.
5. power magnetoelectricity multi-field coupling measuring system according to claim 1, is characterized in that, described processing module also comprises D.C. magnetic field power supply, and described D.C. magnetic field power supply is connected with described magnetic load-on module by signal wire.
6. power magnetoelectricity multi-field coupling measuring system according to claim 1, is characterized in that, described power load-on module also comprises: both sides offset qualification sheet, described both sides offset qualification sheet and described aluminium frame are fixed by four securing members.
7. power magnetoelectricity multi-field coupling measuring system according to claim 6, is characterized in that, described power load-on module also comprises: activity pressure piece, described activity pressure piece is embedded on the chute between described aluminium frame and described both sides offset qualification sheet.
8. power magnetoelectricity multi-field coupling measuring system according to claim 1, is characterized in that, described processing module also comprises strainmeter, and described strainmeter is pasted foil gauge with test specimen to be measured surface and is connected.
9. according to the power magnetoelectricity multi-field coupling measuring system described in claim 1-8 any one, it is characterized in that, described signal generator, power display, lock-in amplifier, strainmeter, D.C. magnetic field power supply and teslameter are fixedly installed on a multilayer movable platform.
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| CN201410400335.2A CN104198282A (en) | 2014-08-14 | 2014-08-14 | Force-magnetism-electricity multi-field coupling measuring system |
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Cited By (3)
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| CN106289385A (en) * | 2015-06-11 | 2017-01-04 | 南京理工大学 | A kind of Multifunction Sensor |
| CN109239273A (en) * | 2018-09-26 | 2019-01-18 | 北京理工大学 | The dynamic response test platform of magnetic materials under the hot multi- scenarios method environment of power-magnetic- |
| CN111855432A (en) * | 2020-07-20 | 2020-10-30 | 华中科技大学 | Device and method for testing stress-strain curve of titanium alloy material under high-temperature high-strain rate |
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| US7759931B2 (en) * | 2005-03-14 | 2010-07-20 | National University Corporation, Okayama University | Device for measuring magnetic impedance |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106289385A (en) * | 2015-06-11 | 2017-01-04 | 南京理工大学 | A kind of Multifunction Sensor |
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| CN109239273A (en) * | 2018-09-26 | 2019-01-18 | 北京理工大学 | The dynamic response test platform of magnetic materials under the hot multi- scenarios method environment of power-magnetic- |
| CN111855432A (en) * | 2020-07-20 | 2020-10-30 | 华中科技大学 | Device and method for testing stress-strain curve of titanium alloy material under high-temperature high-strain rate |
| CN111855432B (en) * | 2020-07-20 | 2021-03-30 | 华中科技大学 | Device and method for testing stress-strain curve of titanium alloy material under high-temperature high-strain rate |
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