CN202421129U - Self-balancing excitation sensor for magnetic field information - Google Patents
Self-balancing excitation sensor for magnetic field information Download PDFInfo
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- CN202421129U CN202421129U CN2011205305972U CN201120530597U CN202421129U CN 202421129 U CN202421129 U CN 202421129U CN 2011205305972 U CN2011205305972 U CN 2011205305972U CN 201120530597 U CN201120530597 U CN 201120530597U CN 202421129 U CN202421129 U CN 202421129U
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Abstract
A self-balancing excitation sensor for magnetic field information comprises equal magnets and an axial magneto-dependent sensor. The two magnets are disposed at equal intervals at two axial ends of the axial magneto-dependent sensor in such manner that like polar ends of the magnets are opposite. Axes of the two magnets and an axis of the axial magneto-dependent sensor are overlapped. The axial magneto-dependent sensor is a high-conductivity wire solenoid which is wound in the same winding direction, and the solenoid is provided with an input end at one end and an output end at the other end. The self-balancing excitation sensor for magnetic field information can be used for effective high-resolution acquisition of magnetic-field vector change information and magnetic aggregation information mapped due to performance degradation or mechanical injury of ferromagnetic metal parts.
Description
Technical field
The utility model relates to a kind of magnetic vector change information and magnetic of utilizing and assembles the device of information to the ferromagnetic metal component flaw detection, a kind of specifically self-equilibrating advocate approach Magnetic Field induction installation.
Background technology
Ferromagnetic metal component has the good magnetic characteristic that receives, and is very easily magnetized by external magnetic field; There is close corresponding relation in magnetic field after ferromagnetic metal component is magnetized (distribution of magnetic line of force vector) with the proterties of its metal material; Ferromagnetic metal component is in its manufacturing and use; Because of a variety of causes inevitably can take place to change in quality and various functional deterioration or the entity damage phenomenon that causes its usability to descend such as: fault in material, structure variation, surface injury, material, as can not in time finding and accidents caused with the safety in utilization of serious threat member; The various failure states of ferromagnetic metal component can be utilized its inner corresponding magnetic vector change information or magnetic to assemble information and shine upon.Therefore, effectively gather these Magnetic Field to timely discovery with analyze the member safe coefficient, rationally repair or more new structural member, ensure the security of the lives and property, with playing very positive effect.Present stage, the nondestructive means to ferromagnetic metal component was generally: supersaturation excitation method and residaul field method.Supersaturation excitation method---be to applied the externally-applied magnetic field that makes this part reach hypersaturated state by certain part of detection component; If this local surfaces exists than serious damage; Then will produce leakage magnetic field, judge damage through the leakage field information of pressing close to the sensor acquisition of settling this part; Residaul field method---be to use certain magnetizing assembly; Make by the part of detection component or integral body and be magnetized; Re-use sensor device, to having the member part or the whole implementation detection of more weak remanent magnetism relatively, through the member different parts remanent magnetism information gap that collects is judged damage.When supersaturation excitation method is implemented; Because sensor must have work under the more powerful externally-applied magnetic field incentive condition; Therefore the signals collecting limitation is big, signal to noise ratio (S/N ratio) is low and poor practicability: the existence of the complementary field (making tested member reach the magnetic field of the supersaturation magnetization) that (1) is stronger relatively; Cause the passivation of sensor reference sensitivity; Simultaneously, the different Magnetic Field in the ferromagnetic medium (metallic material part) is all flooded (strong magnetic assimilation) by noise, causes the Magnetic Field of shining upon mutually with defectives such as the various variations degenerations of component inside, machinery strains can't effectively to be gathered at all; And be placed in the air dielectric sensor on (the outside nearly surface of member entity), can only collect the stray field information of two kinds of magnetic conductive medias (metal medium and air dielectric) near interface; (2) be in by the supersaturation magnetized state owing to tested member; Whether its solid object surface no matter hurt takes place; In near the air dielectric of solid object surface all in various degree have leakage field (noise magnetic field) information; The power that relies on the stray field information of gathering is judged damage, and reliability is obviously very low.In addition; That the magnetic permeability of air dielectric and ferromagnetic metallic material medium differs is huge (hundreds of even thousands of times); The stray field intensity of tested member can sharply decay in air dielectric; Sensor must just can obtain true raw information near the member solid object surface as far as possible, when the on-the-spot use of actual industrial and mineral, almost can't guarantee the quantitative reliability of detecting a flaw.Residaul field method is when practice; Because magnetization and detection are two relatively independent processes; The member that after magnetization, has remanent magnetism is during with machinery and equipment operation of living in; Can be owing to multiple reason (such as the friction between hardware, collision and mechanical shock etc.) cause its residual magnetic field homogeneity to be damaged, and depend on acquisition member residual magnetic field information, and judge whether damage with the alienation of member each several part residual magnetic field information gap; Obviously antijamming capability is low, and there is tangible uncertainty in resulting result.A large amount of ferromagnetic metal components that use in social life and the activity in production; Press for a kind of can with production run practical innovative technology synchronously that accomplish, real-time detection member safe condition; Use real demand for security and above-mentioned two kinds of methods all can't satisfy member, can't effectively solve the safety issue of the ferromagnetic metal component in the use.
This shows that above-mentioned existing ferromagnetic metal component flaw detection means obviously still have blank and defective in method and use, and the appearance of demanding a kind of new technology urgently.For the ferromagnetic metal component safety in utilization that solves exist actually is detected problem; Relevant science-and-technology enterprise is there's no one who doesn't or isn't sought solution painstakingly; But do not see always that for a long time suitable technical method produces; And the failure detector ability that generates with existing method does not solve above-mentioned safety problem, and this obviously is the problem that the anxious desire of relevant scientific and technological dealer solves.Therefore, how to create a kind of self-equilibrating advocate approach Magnetic Field induction installation of new technology, real one of the current important research and development problem that belongs to is the target that the current relevant scientific and technological industry utmost point need be realized.
Because the blank that above-mentioned existing method and device thereof exist; The inventor manufactures and designs abundant for many years practical experience and professional knowledge based on being engaged in this type of technical research, experiment and products thereof; And cooperate the utilization of studying the science, actively study innovation, in the hope of creating a kind of self-equilibrating advocate approach Magnetic Field induction installation of novel technical method; It is blank to fill up general existing technical method, makes it have more practicality, validity and novelty.Through constantly research, design, and, found out the present invention of true tool innovation practical value finally through after studying sample and improvement repeatedly.
The utility model content
The utility model technical matters to be solved provides a kind of self-equilibrating advocate approach Magnetic Field induction installation; Can be under the self-equilibrating pattern excitation field, guarantee that the excitation of magnetosensitive propagated sensation sensor and self-equilibrating accomplishes the high-resolution collection of member magnetic vector change information with magnetic gathering information synchronously.
The utility model is to solve the problems of the technologies described above the technical scheme that is adopted to be: a kind of self-equilibrating advocate approach Magnetic Field induction installation; Comprise two identical magnets and an axial magnetic dependent sensor; Two magnets are with the relative mode of homopolar end, the equally spaced axial two ends that are arranged on the axial magnetic dependent sensor, the axis of the axis of two magnets and axial magnetic dependent sensor; The state that is three deads in line; Described magnetosensitive propagated sensation sensor is a high conductivity lead solenoid, and around to coiling, an end is that input end, the other end are output terminal to this solenoid by same.
Described two magnets are that material, proterties, physical dimension and physical property thereof show on all four two permanent-magnets.
Described two magnets are that physical property shows on all four two electromagnetism magnets.
The distance of said two magnet homopolar ends makes the magnetic flux density vector of axial magnetic sensitive sensor axis centre be combined into zero or is constant C.
The magnet at said axial magnetic sensitive sensor and its two ends constitutes self-equilibrating excitation field state, and axial magnetic sensitive sensor output end signal is benchmark zero or constant C.
A kind of self-equilibrating advocate approach Magnetic Field induction installation that the utility model proposes; This self-equilibrating advocate approach Magnetic Field induction installation is kicker magnet excitation induction models such as space symmetry; Imitate o coil and axial magnetic sensitive sensor by becoming reciprocity strong permanent magnetic body or equimagnetic; With spatial axis overlap and magnet to axial magnetosensitive propagated sensation sensor end positions symmetrical manner form; It is suitable to arrangement that every reciprocity strong permanent magnetic body or equimagnetic effect o coil same polarity are separated by relatively, and it is the middle placement of two magnets axial magnetic sensitive sensor in opposite directions, and this axial magnetic sensitive sensor axis and two magnet axis are three axis shaft to the coincidence space location status.This self-equilibrating advocate approach Magnetic Field induction installation has obtained space self-equilibrating magnetic pumping pattern, can effectively accomplish magnetic vector change information and magnetic are assembled the high-resolution collection of information.
Aforesaid self-equilibrating advocate approach Magnetic Field induction installation, wherein said one-tenth equity kicker magnet is for material, proterties, physical dimension and physical property thereof show on all four two permanent-magnets or electromagnetism magnet.
Aforesaid self-equilibrating advocate approach Magnetic Field induction installation, wherein said one-tenth equity kicker magnet shows on all four two electromagnetism magnets for reaching its physical property through the electrical quantity modulation.
Aforesaid self-equilibrating advocate approach Magnetic Field induction installation, wherein said paired electromagnetism magnet, but common-battery source, altogether input end electric current input.
Aforesaid self-equilibrating advocate approach Magnetic Field induction installation, wherein said paired electromagnetism magnet, but common-battery source but respectively from input end input current independently separately.
Aforesaid self-equilibrating advocate approach Magnetic Field induction installation, wherein said paired electromagnetism magnet according to the information feedback of magnetosensitive propagated sensation sensor, is modulated to self-equilibrating state and logical locking by embedded program software automatically.
Aforesaid self-equilibrating advocate approach Magnetic Field induction installation, wherein said magnetosensitive propagated sensation sensor, input end input frequency modulation electric weight, output terminal output voltage or current signal.
Aforesaid self-equilibrating advocate approach Magnetic Field induction installation, wherein said magnetosensitive propagated sensation sensor, the voltage or the current signal of output terminal output insert feedback modulating circuit simultaneously.
Aforesaid self-equilibrating advocate approach Magnetic Field induction installation can also use in space symmetry combination in single use.
The beneficial effect of the utility model is: self-equilibrating advocate approach Magnetic Field induction installation; Obtained and synchronous self-equilibrating magnetic or the electric magnetization pattern of magnetosensitive propagated sensation sensor high-resolution collection; Can be effectively to ferromagnetic metal component, because of magnetic vector change information and magnetic gathering information that performance degradation or mechanical damage are shone upon are carried out the high-resolution collection.
Description of drawings
Fig. 1 is the self-equilibrating advocate approach Magnetic Field induction installation of the utility model preferred embodiment;
Fig. 2 is the self-equilibrating advocate approach Magnetic Field induction installation of another preferred embodiment of the utility model.
Mark among the figure: 1, axial magnetic dependent sensor, 2, magnet.
Embodiment
For further setting forth the utility model is to reach technological means and the effect that predetermined utility model purpose is taked; Below in conjunction with accompanying drawing and preferred embodiment; To the self-equilibrating advocate approach Magnetic Field induction installation that proposes according to the utility model; Its embodiment, structure, characteristic and effect thereof, specify as after.
Aforementioned and other technology contents, characteristics and the effect of relevant the utility model can clearly appear in following the cooperation in the graphic preferred embodiment detailed description of reference.Explanation through the embodiment method; When can being to reach technological means and the effect that predetermined purpose takes to be able to more deeply and concrete understanding to the utility model; Yet the appended graphic usefulness that only provides reference and explanation is not to be used for the utility model is limited.
The self-equilibrating advocate approach Magnetic Field induction installation of the utility model adopts two identical magnets 2 and an axial magnetic dependent sensor 1; Utilize two physics magnetic characteristics consistent strong permanent magnetic body such as grade or electromagnet (high saturable core electromagnetism winding); Make the same polarity magnetic pole axially in opposite directions; Distinguish symmetrical placement in equidistant position, axial magnetic sensitive sensor 1 two ends, and make two magnets 2 and 1 dead in line of axial magnetic sensitive sensor, constitute the space axis of symmetry and overlap model.This permanent magnet is processed positive entity bar cylindricality with NdFeB material, and magnetic pole N/S is in the just axial two ends of magnet.This axial magnetic sensitive sensor 1 turns to the conduction solenoid with high conductivity lead list rotation direction, single-ended input, single-ended output.Axial magnetic sensitive sensor 1 is in the magnetic field of two magnets, 2 stacks, constitutes self-equilibrating excitation field state.
Consult shown in Figure 1, the self-equilibrating advocate approach Magnetic Field induction installation of the utility model preferred embodiment.Present embodiment is with two column Nd-Fe-B permanent magnets (￠ 10 ㎜ * 20 ㎜) and conduction solenoid (￠ 5 ㎜ * 25 ㎜; 200 circles); Form the space axis of symmetry and overlap the arrangement state; The magnetosensitive propagated sensation sensor input end input higher-order of oscillation forms the induction of space magnetic field information self-equilibrating magnetic pumping and receives body.
Consult shown in Figure 2, the self-equilibrating advocate approach Magnetic Field induction installation of another preferred embodiment of the utility model.Present embodiment is with two column electromagnet coils (￠ 8 ㎜ * 36 ㎜; 4000 circles; High magnetic saturation iron core), form the space axis of symmetry and overlap arrangement state, electromagnet coils input and output termination logical circuit (the DC5V/4096 level is adjustable continuously); The magnetosensitive propagated sensation sensor input end input higher-order of oscillation forms the induction of space magnetic field information self-equilibrating magnetic pumping and receives body.
This embodiment can have the sustainable expansion of good technology through changing the self-equilibrating magnetic pumping induction reception body that electromagnetic parameter forms different ranges according to actual needs.
Magnetic field belongs to the space physics field, is typical energy field.In given magnetic field range, each object materials medium is because magnetic permeability is different, the magnetic field energy of being accepted also different (acceptance that magnetic permeability is high many, otherwise then few); Simultaneously; The magnetic field energy that same object is accepted; Different with the homogeneity that constitutes this object materials material, continuity, the distribution of the magnetic field energy of being accepted also different (homogeneity of material, the energy distribution that continuity is good are even, assemble otherwise then produce magnetic).Therefore, in the time of in tested ferromagnetic component is in given magnetic field environment, if material variation (like rust corrosion) sexual involution has taken place the material of member, then the homogeneity of its material is destroyed, and the magnetic vector information of mapping changes mutually with it; And, then will cause the continuity blocking-up of construction material when member existence machinery strain or wound, the Distribution of Magnetic Field state of mapping change (magnetic field homogeneity is destroyed) causes magnetic to be assembled mutually with it.Self-equilibrating advocate approach Magnetic Field induction installation utilizes same magnetic field self-equilibrating magnetic pumping information induction mechanism, can effectively accomplish magnetic vector change information and magnetic are assembled the high-resolution collection of information.
The utility model self-equilibrating advocate approach Magnetic Field induction installation (calling this device in the following text) is similar to the balance principle of work from energy spectrometer.When ferromagnetic metal component does not get into this device induced field; This device is in magnetic field induction self-equilibrating state; Induction solenoid (magnetosensitive propagated sensation sensor) is output as null value (similar balance two ends do not have counterweight) or a non-vanishing constant value C quality counterweights such as () the two ends placements of similar balance; It is equal, in the opposite direction to the magnetic field energy of two ends induction promptly to respond to solenoid shaft, and this device is in self-equilibrating magnetic pumping inductance balance state.When the ferromagnetic metal component edge was parallel to this assembly axis to this device of entering induced field, its entering part was promptly surveyed, if member is intact (material does not have degeneration, do not have mechanical the strain and wound) by probe portion, then this device will keep equilibrium state; In case there is non-intact situation in member by probe portion, unbalance response phenomenon takes place in this device immediately, and the sensor output terminal is output increment or abatement information immediately; If ferromagnetic metal component all promptly is regarded as by complete detection through this device continuously.
The utility model self-equilibrating advocate approach Magnetic Field induction installation can select combined type to use.Said " combined type " is meant each single device symmetric arrangement in three dimensions, forms the complete containing circumferential to tested ferromagnetic metal component.
The utility model self-equilibrating advocate approach Magnetic Field induction installation; For waiting kicker magnet space symmetry, polarity in opposite directions; By two identical permanent magnets of magnetic characteristic or electromagnet,, equidistant separately with axial expansion mode composition with the dead in line of an axial magnetic sensitive sensor; Adopt self-equilibrating magnetic field excitation and magnetic flaw detection induction synchronously; Electric signal feedback logic modulation locking technical design can be effectively to ferromagnetic metal component, because of magnetic vector change information and magnetic gathering information that performance degradation or mechanical damage are shone upon are carried out the high-resolution collection.
The above; It only is the preferred embodiment of the utility model; Be not that utility model is done any pro forma restriction, though the utility model is with the preferred embodiment exposure as above, yet; Be not in order to limit the utility model; Any professional and technical personnel of being familiar with makes a little change or is modified to the equivalent embodiment of equivalent variations when the technical method content of above-mentioned announcement capable of using in not breaking away from the utility model technical method scheme scope, is the content that does not break away from the utility model technical method scheme in every case;, all still belong in the scope of the utility model technical method scheme any simple modification, equivalent variations and modification that above embodiment did according to the technical method essence of the utility model.
Claims (5)
1. self-equilibrating advocate approach Magnetic Field induction installation; It is characterized in that: comprise two identical magnets (2) and an axial magnetic dependent sensor (1); Two magnets (2) are with the relative mode of homopolar end, the equally spaced axial two ends that are arranged on axial magnetic dependent sensor (1); The axis of the axis of two magnets (2) and axial magnetic dependent sensor (1) is the state of three deads in line; Described axial magnetic sensitive sensor (1) is a high conductivity lead solenoid, and around to coiling, an end is that input end, the other end are output terminal to this solenoid by same.
2. a kind of self-equilibrating advocate approach Magnetic Field induction installation as claimed in claim 1 is characterized in that: described two magnets (2) are that material, proterties, physical dimension and physical property thereof show on all four two permanent-magnets.
3. a kind of self-equilibrating advocate approach Magnetic Field induction installation as claimed in claim 1, it is characterized in that: described two magnets (2) are on all four two electromagnetism magnets for physical property shows.
4. like any described a kind of self-equilibrating advocate approach Magnetic Field induction installation of claim 1-3, it is characterized in that: the distance of said two magnets (2) homopolar end makes the magnetic flux density vector of axial magnetic sensitive sensor (1) axis centre be combined into zero or is constant C.
5. like any described a kind of self-equilibrating advocate approach Magnetic Field induction installation of claim 1-3; It is characterized in that: said axial magnetic sensitive sensor (1) constitutes self-equilibrating excitation field state with the magnet (2) at its two ends, and axial magnetic sensitive sensor output end signal is benchmark zero or constant C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205305972U CN202421129U (en) | 2011-12-19 | 2011-12-19 | Self-balancing excitation sensor for magnetic field information |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011205305972U CN202421129U (en) | 2011-12-19 | 2011-12-19 | Self-balancing excitation sensor for magnetic field information |
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| CN202421129U true CN202421129U (en) | 2012-09-05 |
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| CN2011205305972U Withdrawn - After Issue CN202421129U (en) | 2011-12-19 | 2011-12-19 | Self-balancing excitation sensor for magnetic field information |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426190A (en) * | 2011-12-19 | 2012-04-25 | 洛阳泰斯特探伤技术有限公司 | Magnetic field information inductor based on self-balanced excitation method |
-
2011
- 2011-12-19 CN CN2011205305972U patent/CN202421129U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426190A (en) * | 2011-12-19 | 2012-04-25 | 洛阳泰斯特探伤技术有限公司 | Magnetic field information inductor based on self-balanced excitation method |
| CN102426190B (en) * | 2011-12-19 | 2015-09-30 | 杨旭 | A kind of self-equilibrating advocate approach Magnetic Field induction installation |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20120905 Effective date of abandoning: 20150930 |
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| RGAV | Abandon patent right to avoid regrant |