CN206420593U - A kind of magnetic flux transducer detected for ferrimagnet internal force - Google Patents
A kind of magnetic flux transducer detected for ferrimagnet internal force Download PDFInfo
- Publication number
- CN206420593U CN206420593U CN201720118580.3U CN201720118580U CN206420593U CN 206420593 U CN206420593 U CN 206420593U CN 201720118580 U CN201720118580 U CN 201720118580U CN 206420593 U CN206420593 U CN 206420593U
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- CN
- China
- Prior art keywords
- magnetic flux
- flux transducer
- coil wire
- ferrimagnet
- internal force
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
This application discloses a kind of magnetic flux transducer detected for ferrimagnet internal force, the magnetic flux transducer includes inscribed line terminals, external wiring terminal and flexible winding band；Wherein, the inscribed line terminals and external wiring terminal are respectively fixedly connected with the two ends of the flexible winding band, and the flexible winding band includes the excitation coil wire and measuring coil wire in flexible insulation base and the embedded flexible insulation base；The two ends of the excitation coil wire and measuring coil wire are connected with the magnet exciting coil interface and measuring coil interface in inscribed line terminals and external wiring terminal respectively.The application proposes a kind of coil type magnetic flux transducer, and it is mainly characterized by the fixed coil reel structure that traditional closed type magnetic flux transducer is instead of using extensible banded structure, or conventional open-loop formula magnetic flux transducer two halves formula structure；It has that winding principle is simple, technique simple, suitable for batch micro operations, cost can be greatly lowered the advantages of.
Description
Technical field
The utility model belongs to structure detection field, and in particular to a kind of magnetic flux detected for ferrimagnet internal force
Sensor.
Background technology
When ferrimagnet is acted on by external force, its internal generation mechanical stress or strain, correspondingly magnetic conductivity generation
Change, determine magnetic conductivity change, it is possible to know stress variation, the magnetic flux transducer made based on this magnetoelasticity can
Measured with the mechanical stress to ferrimagnet.
Typical flux sensor is made up of magnetizing coil (primary coil) and measuring coil (secondary coil).In excitatory line
Apply pumping signal on circle, alternating magnetic field will be produced, the magnetic field will produce induced electromotive force in measuring coil, to the sense
Motional electromotive force carries out time integral, and output voltage, the output voltage and the relative magnetic in coil can be produced at measuring coil two ends
There is certain relation in conductance, by determining the output voltage, structure of ferromagnetic material is carried out some groups of stress, at a temperature of carry out
Experiment, sets up relative permeability change and structural stress, the relation of temperature, it is possible to realize measurement ferromagnetic structure part stress
Purpose.
At present, most typical application is measurement drag-line internal force to magnetic flux transducer in the industry.Practical application mainly
Closed type magnetic flux transducer, is that sleeve type installs (the FS-CCTB types of such as Jiangxi Fashion Technology Co., Ltd.), due to drag-line two
End suffers restraints, thus typically can only while drag-line is installed by sensor sleeve on cable body, if drag-line is installed, one
As can only be used by the method for live coiling, using there is larger limitation, but do not solve preferably for a long time
Method.The structure of open loop type magnetic flux transducer is two halves formula, is mainly used in the long term monitoring in construction later stage, to constructing without special
It is required that, it is clipped at drag-line protection pipe, installs and easy to maintenance, the limitation in time limit of not constructing, such as Application No.
201310718127.2 utility model patent and and the utility application of Application No. 201510093450.4 in
Disclosed open loop type magnetic flux transducer, but due to the reason such as cost is higher, current open loop type magnetic flux transducer application is still
There is larger limitation.
The bore radio telescope FAST the biggest in the world built up at present, its primary reflection surface is supported by rope net
, the rope net is made up of about 7000 cable wires.Whole rope net is again by diameter 500m annular ring beam structure supports.In telescope fortune
Between the departure date, higher is required to the Internal Force Monitoring of structural internal force especially rope, because the monitoring point quantity that may be needed is more, to passing
The cost and ease for use of sensor require very high.
Utility model content
For problems of the prior art, the purpose of this utility model is to provide a kind of be used in ferrimagnet
The magnetic flux transducer of power detection, it instead of the fixation of traditional closed type magnetic flux transducer using extensible banded structure
Coil web structure, or conventional open-loop formula magnetic flux transducer two halves formula structure；It has that winding principle is simple, technique is simple
It is single, suitable for batch micro operations, cost can be greatly lowered the advantages of.
To achieve the above object, the utility model uses following technical scheme：
A kind of magnetic flux transducer detected for ferrimagnet internal force, the magnetic flux transducer includes inscribed line end
Son, external wiring terminal and flexible winding band；Wherein, the inscribed line terminals and external wiring terminal are respectively fixedly connected with described soft
Property winding band two ends, the flexible winding band includes the excitation coil in flexible insulation base and the embedded flexible insulation base
Wire and measuring coil wire；The two ends of the excitation coil wire and measuring coil wire respectively with inscribed line terminals and external
Magnet exciting coil interface and the connection of measuring coil interface in line terminals.
Further, the excitation coil wire and measuring coil wire are spaced in the embedded flexible insulation base successively.
Further, the excitation coil wire and measuring coil wire are to be produced on the flexible insulation by depositing operation
Conductive material on base.
Further, the excitation coil wire and measuring coil wire are to be partially submerged into leading in the flexible insulation base
The surface of body, i.e. conductor is only partially submerged into flexible insulation base.
Further, the excitation coil wire and measuring coil wire are to be completely embedded into leading in the flexible insulation base
Body.
Further, the magnetic flux transducer also includes protective case, the protective case by two it is block-shaped with tested component outside
The insulation shell that surface is adapted is constituted, and tested external surface of structural member is coated on after two pieces of insulation shell docking.
Further, the magnetic flux transducer also includes turning set, and the inscribed line terminals are fixedly connected on the rotation
The outer surface of set；The turning set is socketed on the outside of tested component.
Further, the protective case is made up of polytetrafluoroethylene (PTFE).
Further, the turning set is made up of polytetrafluoroethylene (PTFE).
Further, the flexible insulation base is any of empire cloth, soft PCV or alumina silicate blanket.
The utility model has following advantageous effects：
1st, winding principle is simple, technique is simple, and suitable for batch micro operations, cost can be greatly lowered.
2nd, compared with traditional single line coiling magnetic flux transducer, the utility model is led using many in parallel within the same layer
The mode of line, while no reduction coil turn, considerably reduces circuitous resistance, thus reduces operating voltage, drops
Low power reguirements, add induced-current, improve signal to noise ratio.
3rd, due to using the modes of same layer multiple conducting wires in parallel, and wire is by compacting or depositing operation system
Make on base material, so the situation of broken string is less likely to occur, even if breaking, the influence used is also easy to eliminate.
4th, general inscribed line terminals or external wiring terminal are passed through, it is possible to achieve the modularization of winding, can be according to reality
Need, different demands are met by way of serial or parallel connection, single or multiple lift.
5th, due to using coil type structure, this magnetic flux transducer is limited very little by member section shape, as long as closing
, bus be straight line Free Surface.
6th, after being finished to tested component internal force measurement, winding can be fixed on tested structural member, so as to monitoring in real time
Or monitor next time；Winding can also be disassembled, used elsewhere.
Brief description of the drawings
Fig. 1 is the magnetic flux transducer use state structural representation of the utility model embodiment；
Fig. 2 is the knot in excitation coil wire and measuring coil wire the insertion flexible insulation base of the utility model embodiment
Structure cross section structure schematic diagram；
Fig. 3 is in excitation coil wire and measuring coil wire the insertion flexible insulation base of another embodiment of the utility model
Structural section structural representation；
Fig. 4 is in excitation coil wire and measuring coil wire the insertion flexible insulation base of another embodiment of the utility model
Structural section structural representation；
The structural representation that Fig. 5 winds for the magnetic flux transducer rectangle of the utility model embodiment.
Embodiment
Below, refer to the attached drawing, is more fully illustrated to the utility model, is shown shown in the drawings of of the present utility model
Example property embodiment.However, the utility model can be presented as a variety of multi-forms, it is not construed as being confined to what is described here
Exemplary embodiment.And these embodiments are to provide, so that the utility model is fully and completely, and will be of the present utility model
Scope fully conveys to one of ordinary skill in the art.
As shown in figure 1, the utility model provides a kind of magnetic flux transducer detected for ferrimagnet internal force,
The magnetic flux transducer includes inscribed line terminals 5, external wiring terminal 8 and flexible winding band 4；Wherein, line terminals 5 are inscribed and external
Line terminals 8 are respectively fixedly connected with the two ends of flexible winding band 4, and flexible winding band 4 includes flexible insulation base and embedded flexible
The excitation coil wire and measuring coil wire insulated in base；The two ends of excitation coil wire and measuring coil wire respectively with it is interior
Magnet exciting coil interface 6 and measuring coil interface 7 in binding post 5 and external wiring terminal 8 are connected.Excitation coil wire and measurement
Winding wire is spaced in embedded flexible insulation base successively, and it is as small as possible that the spacing between wire is set.
As shown in Fig. 2 excitation coil wire and measuring coil wire are to be produced on by depositing operation on flexible insulation base
Conductive material.
As shown in figure 3, excitation coil wire and measuring coil wire are the conductor being partially submerged into flexible insulation base, that is, lead
The surface of body is only partially submerged into flexible insulation base.
As shown in figure 4, excitation coil wire and measuring coil wire are the conductor being completely embedded into flexible insulation base.
Magnetic flux transducer also includes protective case 2, and protective case 2 block-shaped is adapted with the tested outer surface of component 1 by two
Insulation shell is constituted, and the tested outer surface of component 2 is coated on after two pieces of insulation shell docking.Protective case 2 is made up of polytetrafluoroethylene (PTFE).
Magnetic flux transducer also includes turning set 3, and inscribed line terminals 5 are fixedly connected on the outer surface of turning set 3；Turning set
3 are socketed in the tested outside of component 1.Turning set 3 is made up of polytetrafluoroethylene (PTFE).
Flexible insulation base is any of empire cloth, soft PCV or alumina silicate blanket, can also be by other flexible insulating material systems
Into.
During practical operation, protective case is fixed on tested component appearance first, the two halves of turning set are closed in protection respectively
Set is outside, and the coil of band material of certain length is then selected outside it, and inscribed line terminals are installed in its one end, and by inscribed line end
Son is fixed on turning set.Direction as required rotates turning set, you can winding is wrapped in into member exterior.When being wound up into
After certain number of plies, you can block external wiring terminal in winding, connection, turning set, which is fixed, to be prevented from rotating on the protective sleeve.Use
External connection circuit, including excitation set and signal collecting device, you can constitute a set of magnetic flux measuring structure internal force system.Measurement
Finish, if necessary to dismantle, release the fixation of turning set, winding external wiring terminal is fixed in a circular shaft, makes the axle
Rotate, you can winding is wound into the circular shaft, while winding is disassembled from tested circular cross-section component.
If tested component is not circular cross-section, except being inconvenient to use turning set thus winding somewhat multiple with unloading process
Outside miscellaneous, other application methods are similar with the operation of circular cross-section component.
In the utility model, excitatory equipment, signal measurement device used in magnetic flux transducer can be used and tradition
Magnetic flux transducer identical principle, magnetic flux transducer zero point demarcation it is identical with traditional magnetic flux transducer.This reality
Had the advantage that with new magnetic flux transducer so that it is particularly suitable for use in FAST cable net structures, Bird's Nest etc. built up and
Require supplementation with the load-bearing monitor of the steel construction of load-bearing monitor point.
As shown in figure 5, the utility model uses rewinding structure, circular cross-section component is applicable not only to, is applied also for
Noncircular cross section component.
It is described above simply to illustrate that the utility model, it is understood that the utility model be not limited to the above implementation
Example, meets the various variants of the utility model thought within protection domain of the present utility model.
Claims (10)
1. a kind of magnetic flux transducer detected for ferrimagnet internal force, it is characterised in that the magnetic flux transducer bag
Include inscribed line terminals, external wiring terminal and flexible winding band；Wherein, the inscribed line terminals and external wiring terminal are fixed respectively connects
The two ends of the flexible winding band are connected on, the flexible winding band is included in flexible insulation base and the embedded flexible insulation base
Excitation coil wire and measuring coil wire；The two ends of the excitation coil wire and measuring coil wire respectively with internal wiring
Magnet exciting coil interface and the connection of measuring coil interface in terminal and external wiring terminal.
2. the magnetic flux transducer according to claim 1 detected for ferrimagnet internal force, it is characterised in that described
Excitation coil wire and measuring coil wire are spaced in the embedded flexible insulation base successively.
3. the magnetic flux transducer according to claim 1 detected for ferrimagnet internal force, it is characterised in that described
Excitation coil wire and measuring coil wire are the conductive material being produced on by depositing operation on the flexible insulation base.
4. the magnetic flux transducer according to claim 1 detected for ferrimagnet internal force, it is characterised in that described
Excitation coil wire and measuring coil wire are the conductor being partially submerged into the flexible insulation base, i.e. the surface of conductor only has portion
Divide in embedded flexible insulation base.
5. the magnetic flux transducer according to claim 1 detected for ferrimagnet internal force, it is characterised in that described
Excitation coil wire and measuring coil wire are the conductor being completely embedded into the flexible insulation base.
6. the magnetic flux transducer according to claim 1 detected for ferrimagnet internal force, it is characterised in that described
Magnetic flux transducer also includes protective case, and the protective case is by the two block-shaped insulation shells being adapted with tested external surface of structural member
Constitute, tested external surface of structural member is coated on after two pieces of insulation shell docking.
7. the magnetic flux transducer according to claim 1 detected for ferrimagnet internal force, it is characterised in that described
Magnetic flux transducer also includes turning set, and the inscribed line terminals are fixedly connected on the outer surface of the turning set；It is described to rotate
It is socketed on the outside of tested component.
8. the magnetic flux transducer according to claim 6 detected for ferrimagnet internal force, it is characterised in that described
Protective case is made up of polytetrafluoroethylene (PTFE).
9. the magnetic flux transducer according to claim 7 detected for ferrimagnet internal force, it is characterised in that described
Turning set is made up of polytetrafluoroethylene (PTFE).
10. the magnetic flux transducer according to claim 7 detected for ferrimagnet internal force, it is characterised in that institute
It is any of empire cloth, soft PCV or alumina silicate blanket to state flexible insulation base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720118580.3U CN206420593U (en) | 2017-02-09 | 2017-02-09 | A kind of magnetic flux transducer detected for ferrimagnet internal force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720118580.3U CN206420593U (en) | 2017-02-09 | 2017-02-09 | A kind of magnetic flux transducer detected for ferrimagnet internal force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206420593U true CN206420593U (en) | 2017-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720118580.3U Expired - Fee Related CN206420593U (en) | 2017-02-09 | 2017-02-09 | A kind of magnetic flux transducer detected for ferrimagnet internal force |
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| CN (1) | CN206420593U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768506A (en) * | 2017-02-09 | 2017-05-31 | 中国科学院国家天文台 | A kind of magnetic flux transducer for the detection of ferrimagnet internal force |
-
2017
- 2017-02-09 CN CN201720118580.3U patent/CN206420593U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768506A (en) * | 2017-02-09 | 2017-05-31 | 中国科学院国家天文台 | A kind of magnetic flux transducer for the detection of ferrimagnet internal force |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170818 Termination date: 20220209 |
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| CF01 | Termination of patent right due to non-payment of annual fee |