CN209606598U - A kind of Split type magnetic flux sensor - Google Patents
A kind of Split type magnetic flux sensor Download PDFInfo
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- CN209606598U CN209606598U CN201920285270.XU CN201920285270U CN209606598U CN 209606598 U CN209606598 U CN 209606598U CN 201920285270 U CN201920285270 U CN 201920285270U CN 209606598 U CN209606598 U CN 209606598U
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- magnetic flux
- line segment
- line
- split type
- sheet body
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- 230000004907 flux Effects 0.000 title claims abstract description 47
- 230000005284 excitation Effects 0.000 claims abstract description 42
- 230000006698 induction Effects 0.000 claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 230000004992 fission Effects 0.000 claims description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 2
- 238000002955 isolation Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract 2
- 230000013011 mating Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- Measuring Magnetic Variables (AREA)
Abstract
The utility model discloses a kind of magnetic flux transducer, especially a kind of Split type magnetic flux sensor.The magnetic flux transducer is used to detect the pulling force of existing exposed cable wire in built structure, its main body is divided into seperated and lower seperated two parts, this two parts has made indoors and mating calibration finishes, scene only need to clasp cable wire with the two, faying face fits together, each point of intracorporal conducting line segment is just correspondingly connected, constitutes excitation coil and induction coil.This magnetic flux transducer, the conventional magnetic flux transducer being fixed on when making and install with cable wire on cable wire, and the magnetic flux transducer made when steel cable stretching force in previous detection existing structure is compared, it is easy to operate, save the time, the detection to steel cable stretching force in total can be completed in one magnetic flux transducer, economical and practical.
Description
Technical field
The utility model relates to magnetic flux transducer, in particular to a kind of Split type magnetic flux sensor.
Background technique
In recent decades, as Cable Structure is using more and more extensive, the design calculation theory of suspended-cable structure also obtained
It improves and develops.Suo Li control in work progress and in existing structure is the important link for being related to structural internal force and state.
Structural damage caused by the deterioration of structure material, defect or contingency, can all cause the internal force weight of each component, especially drag-line
Distribution.Therefore, how to determine that the rope tensility size of structure in construction and use process becomes pendulum in face of project planner
Significant problem.
Common routine cable tension test method pressure sensor method and frequency method.Pressure sensor short-term accuracy height, dynamic
Property it is good, but need to be connected in force structure, under the long term of load, it may appear that material creep, deformation transmitting distortion, zero
The problems such as point drift, durability and long-term accuracy are not easy to guarantee, due to that can not be recalibrated under stress, Wu Fageng
It changes, being accordingly used in long term monitoring has certain limitation.Frequency method test Suo Li needs to measure the oscillating curve of drag-line, and carries out
Spectrum analysis obtains the fundamental frequency or frequency difference of inhaul cable vibration frequency.Because the practical anchoring condition of stay cable end is than various corresponding theories
Complexity in model, the Suo Li formula obtained based on various theoretical models is different, theoretically there is error.
Nearly ten years, magnetic flux transducer is developed with its excellent performance, is applied to test Cable power.Its advantage master
It include: not damage drag-line for non-contact measurement；Sensor maintenance is at low cost, long service life；Strong antijamming capability, survey
Accuracy of measurement is high, reproducible；System can automatic measurement and auto thermal compensation；It can be connected with computer system, be remotely good for
Health monitoring.Its application is main in two kinds of situation.For the drag-line of the structure or replacement installation that will build, integral type can be used
Magnetic flux transducer, this sensor have the shortcomings that, disposable install, inconvenience replacement similar with pressure type sensor, with
Using the passage of time, precision is constantly reduced.Another form is can to make magnetic flux for the drag-line in built structure
Quantity sensor, at this point, each cylinder corresponding with integral type magnetic flux transducer is divided into two cylinder pieces, scene by it is interior to
Outside, merge corresponding cylinder piece, the corresponding conducting wire of field-winding makes out magnetic flux transducer.The magnetic of this field fabrication
There are still a disadvantage, the drag-line for needing to measure Suo Li to every will make flux sensor, under normal circumstances, should after test
Sensor remains in structure, although can remove, will cause the damage of conducting wire in demolishing process, and troublesome in poeration.
Summary of the invention
Utility model aims to solve above-mentioned the deficiencies in the prior art and problems, provide a kind of fission
Formula magnetic flux transducer.
A kind of Split type magnetic flux sensor provided by the utility model, rounded sleeve-shaped, outside just as conventional magnetic
Flux sensor, inside include excitation coil and induction coil.It is made of two fissions to match, it is each seperated mainly including two
End plate, inner sleeve sheet body, outer sleeve piece, isolating cylinder sheet body, excitation line segment and the induction line segment at end, excitation line segment and induction line segment
It is referred to as conducting line segment；Inner sleeve sheet body is by the line of induction board group of inner sleeve piece and its two sides at isolating cylinder sheet body is in inner sleeve
Between sheet body and outer sleeve piece, by the excitation line board group of isolating cylinder piece and its two sides at excitation line plate and line of induction plate are referred to as
Line plate；Inner sleeve sheet body and isolating cylinder sheet body are insulator, and end plate and outer sleeve piece are conductor；The two seperated faying face phases
After fitting together with answering, each point of intracorporal conducting line segment is correspondingly connected to, and just constitutes excitation coil and induction coil.The fission
Formula magnetic flux transducer realizes function identical with conventional magnetic flux transducer after two fissions fit.By calibration
A set of Split type magnetic flux sensor afterwards, can complete the measurement to Cable power in total, overcome conventional one
The shortcomings that formula magnetic flux transducer and the magnetic flux transducer of field fabrication, and the advantages of remain them, Suo Li can be accelerated
Test speed, investment reduction.
Correspondingly, motivating line segment and induction line segment is all the copper wire with insulating coating.This is the conventional selection in industry, because
It conducts electricity very well for copper wire.
Correspondingly, the internal diameter of inner sleeve piece is 5mm bigger than the outer diameter of cable wire to be measured to 10mm.This is primarily to reduce leakage
The quantity of magnetism.
Correspondingly, at least one internal temperature sensor.Because the magnetoelasticity of ferrimagnet is affected by temperature, add
After entering temperature sensor, the relation curve of magnetic bullet parameter and temperature is obtained when can make indoors, when on-the-spot test is corrected in time
The data obtained.
Correspondingly, the seperated conducting line segment of each binding face side stretches out corresponding line plate 2mm, and fills out string holes with wlding；
The end of the seperated conducting line segment of the other side is lower than corresponding line plate outer surface 2mm, and fills out string holes with wlding, recessed in ball planar
It falls into, intermediate recess 1mm.This design had not only facilitated the fitting operation at scene, but also the current lead-through convenient for binding face two sides after fitting.
Correspondingly, end plate and outer sleeve piece select the alloy material of permanent magnetic conductivity.Because this kind of material is in the magnetic of a fixed width
In field, temperature and frequency range, being basically unchanged of magnetic conductivity.
Compared with prior art, the utility model can solve conventional magnetic flux transducer and need to install every drag-line
Or the shortcomings that one magnetic flux transducer of production, only need in total indoor production to be not more than the Split type magnetic of drag-line model number
Flux sensor has saved investment, and accelerates the speed of on-the-spot test, has saved the time.Remain integral type and scene system
The advantages of magnetic flux transducer of work, and the shortcomings that overcome them, it is convenient and efficient, it is economical and practical.
Detailed description of the invention
The schematic cross-sectional view of Fig. 1 utility model works state.
The single seperated schematic cross-sectional view of Fig. 2.
The schematic cross-sectional view of Fig. 3 inner sleeve sheet body.
The schematic cross-sectional view of Fig. 4 isolation sheet body.
The single seperated binding face schematic diagram of Fig. 5.
Seperated excitation string holes vertical section schematic diagram on Fig. 6.
Seperated excitation string holes vertical section schematic diagram under Fig. 7.
It is identified in figure: 1- fission 1;2- fission 2;3- cable wire;4- inner sleeve sheet body;40- inner sleeve piece;41- line of induction plate;
5- incudes line segment;6- isolating cylinder sheet body;60- isolating cylinder piece;61- excitation line plate;7- motivates line segment;8- outer sleeve piece;9- induction
String holes;10- motivates string holes;11- preserving and sealing material;12- wlding;13- end plate;Excitation line plate under 21-;String holes is motivated under 22-;
Excitation line under 23-;The upper excitation line plate of 31-;String holes is motivated on 32-;The upper excitation line of 33-.
Specific embodiment
It is specific embodiment of the utility model below, and the technical solution of the utility model is retouched in conjunction with attached drawing
It states, but the utility model is not limited to this embodiment.
Embodiment one
The rounded sleeve-shaped of the Split type magnetic flux sensor, is shown in Fig. 1, and the fission 1 by matching and fission 2 form,
Fission 1 and 2 fitting of fission are close when detecting Suo Li, and cable wire 3 is enclosed to middle, gap 5mm.The inside of fission 1 and fission 2
Structure is identical, mainly includes forming inner sleeve by the line of induction plate 41 of inner sleeve piece 40 and its two sides referring to fig. 2, Fig. 3 and Fig. 4
Sheet body 4, outer sleeve piece 8, between inner sleeve sheet body 4 and outer sleeve piece 8 and by the excitation line of isolating cylinder piece 60 and its two sides
Isolating cylinder sheet body 6, excitation line segment 7 and the induction line segment 5 that plate 61 forms, and the preserving and sealing material 11 of filling internal voids.It is interior
Sleeve sheet body 4 and isolating cylinder sheet body 6 are the insulator of electricity, and inner sleeve piece 40 and isolating cylinder piece 60 are ABS engineering plastics, the line of induction
Plate 41 and excitation line plate 61 are using ceramics.Motivating line segment 7 and induction line segment 5 is the copper wire with insulating coating.Fig. 5 is single seperated
Binding face schematic diagram, have two rows of excitation string holes 10 of arrangement on excitation line plate 61, motivating has excitation line segment 7 in string holes 10
End；There are two rows of induction string holes 9 of arrangement on line of induction plate 41, incuding has induction line segment 5 in string holes 9, seperated both ends are each
There is the end plate 13 of a 5mm thickness, end plate 13 and outer sleeve piece 8 are conductor.Fig. 6 and Fig. 7 forms excitation coil with binding face two sides
Conducting line segment for, describe conducting line segment in two fissions connection construction.On upper excitation line plate 31 in fission above
There is upper excitation string holes 32, upper excitation line 33 passes through upper excitation string holes 32 and exposed 2mm, the gap wlding in upper excitation string holes 32
12 fill and lead up；There is lower excitation string holes 22 on the lower excitation line plate 21 of lower section fission, inside there is lower excitation line 23, lower excitation line 23
End is lower than the upper surface 2mm of lower excitation line plate 21, and fills out string holes with wlding 12, is recessed in ball planar, intermediate recess 1mm.
Using the Split type magnetic flux sensor measure Suo Li in built cable-stayed bridge method the following steps are included:
Step 1: counting the type of the Cable in Cable stayed Bridge, determine the size specification number of Split type magnetic flux sensor.Than
Such as drag-line a total of 160 in cable-stayed bridge, dividing has 5 seed types, can simply advise the size of Split type magnetic flux sensor
Lattice number is also set to 5；
Step 2: the Split type magnetic flux sensor of every kind of specification can make one group, one group three.According to corresponding drag-line
Outer diameter is the internal diameter that 5mm determines inner sleeve piece 40 by the gap of drag-line and Split type magnetic flux sensor；According to the magnetization of steel wire
Select best operating point with permeability curcve, consider the design Suo Li of drag-line, magnetic flux when calculating in best operating point and
Magnetic circuit the size of each part, the height including end plate 13, the length and thickness of outer sleeve piece 8；It is fixed according to Kirchhoff's law and ohm
Restrain determine magnetic circuit part magnetic conductivity and magnetic circuit magnetomotive force, in conjunction with telescopic magnetic circuit each section of design size with
And excitation source provides the ability of electric current, determines the quantity and exciting current of sensor excitation coil, and then design excitation coil
The number of plies and copper wire diameter；Determine magnetic flux transducer other parameters, such as excitation circle winding and induction coil winding length, excitation line
Enclose winding inner diameter and outer diameter；Gap between paint and coiling, the thickness of line insulating materials and the gap of interlayer etc.；
Step 3: test drag-line material is in magnetic bullet parameter when different temperatures, temperature adjustmemt when being live cable tension test
It prepares；
Step 4: one, short drag-line model of every kind of cross-sectional shape of indoor production, grading tension arrives on tensile testing machine
120% design stretching force, while being tested with the corresponding magnetic flux transducer.And according to obtained three Gen Suoli and induction
The relation curve of voltage judges the working performance of each Split type magnetic flux sensor, if some exception, rejects the split type magnetic flux
Quantity sensor；
Step 5: on-the-spot test Suo Li.To a certain rope, a Split type magnetic flux sensor is selected out of corresponding types,
Drag-line is trapped among centre by two fissions, is fitted closely together, and DC pulse exciting current is passed through, and matched magnetic bullet instrument measures magnetic
Parameter is played, and is modified according to temperature, and then obtain Suo Li.
The description of above-mentioned specific embodiment is merely to illustrate the utility model, rather than the power of limitation the utility model
Sharp protection scope.
Claims (6)
1. a kind of Split type magnetic flux sensor, rounded sleeve-shaped, inside include excitation coil and induction coil, feature
It is: is made of two fissions to match, each seperated mainly end plate including both ends, inner sleeve sheet body, outer sleeve piece, isolation
Cylinder sheet body, excitation line segment and induction line segment, excitation line segment and induction line segment are referred to as conducting line segment；Inner sleeve sheet body is by inner sleeve piece
Line of induction board group with its two sides is at isolating cylinder sheet body is between inner sleeve sheet body and outer sleeve piece, by isolating cylinder piece and its
The excitation line board group of two sides is at excitation line plate and line of induction plate are referred to as line plate；Inner sleeve sheet body and isolating cylinder sheet body are insulation
Body, end plate and outer sleeve piece are conductor；After the two seperated faying faces correspondingly fit together, each point of intracorporal conducting line segment
It is correspondingly connected to, just constitutes excitation coil and induction coil.
2. Split type magnetic flux sensor as described in claim 1, it is characterised in that: motivating line segment and induction line segment is all band
The copper wire of insulating coating.
3. Split type magnetic flux sensor as described in claim 1, it is characterised in that: the internal diameter of inner sleeve piece is than steel to be measured
The outer diameter of rope big 5mm to 10mm.
4. Split type magnetic flux sensor as described in claim 1, it is characterised in that: at least one internal temperature sensing
Device.
5. Split type magnetic flux sensor as described in claim 1, it is characterised in that: the seperated of each binding face side is led
Line segment stretches out corresponding line plate 2mm, and fills out string holes with wlding；The end of the conducting line segment of the other side is lower than corresponding line plate outer surface
2mm, and string holes is filled out with wlding, it is recessed in ball planar, intermediate recess 1mm.
6. Split type magnetic flux sensor as described in claim 1, it is characterised in that: end plate and outer sleeve piece select permanent magnetic conductance
The alloy material of rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920285270.XU CN209606598U (en) | 2019-03-07 | 2019-03-07 | A kind of Split type magnetic flux sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920285270.XU CN209606598U (en) | 2019-03-07 | 2019-03-07 | A kind of Split type magnetic flux sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209606598U true CN209606598U (en) | 2019-11-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920285270.XU Expired - Fee Related CN209606598U (en) | 2019-03-07 | 2019-03-07 | A kind of Split type magnetic flux sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209606598U (en) |
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2019
- 2019-03-07 CN CN201920285270.XU patent/CN209606598U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191108 |