CN206281963U - Soft magnetism wideband magnetic measuring device - Google Patents
Soft magnetism wideband magnetic measuring device Download PDFInfo
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- CN206281963U CN206281963U CN201621336978.6U CN201621336978U CN206281963U CN 206281963 U CN206281963 U CN 206281963U CN 201621336978 U CN201621336978 U CN 201621336978U CN 206281963 U CN206281963 U CN 206281963U
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Abstract
The utility model discloses a kind of soft magnetism wideband magnetic measuring device, it includes support frame, and support frame is rectangular configuration, and the cross section of the four edges frame of support frame is rectangle, in test sample insertion frame inner chamber, coil is wound with outside frame；Access port is provided with a line frame, high frequency sub-frame, high frequency sub-frame and the embedded cooperation of access port are provided with access port, high frequency secondary coil is wound with outside high frequency sub-frame.The utility model needs acquisition highfield, low order step voltage to there is a problem of certain contradiction in high frequency for square circle mensuration, by design can flexible access high frequency sub-frame and secondary coil, can be according to the difference of specific measurement frequency, the different number of secondary turns of selection, it is only necessary to change the different high frequency sub-frames i.e. achievable measurement to each frequency band magnetic property before measuring.The characteristics of the utility model has simple structure, easy realization, measurement frequency wide ranges, measurement error is small.
Description
Technical field
The utility model is related to Magnetic Measurement technical field, in particular to a kind of soft magnetism wideband magnetic measuring device, is applicable
Measured in the magnetic property of the soft magnetic materials wide frequency ranges such as amorphous, perm and gold.
Background technology
Amorphous alloy and metal are the field of novel that 20 century 70s come out, and are with new microcosmic group
Knit the functional material of structure.It is to employ the cold super chilling solidification technology for going speed 1,000,000 degree of kind about per second, from molten steel
To strip one-shot forming, fewer than the manufacture of general thin strip cold many intermediate steps.Due to the super chilling solidification for using, alloy
The atom of solidification has little time ordered arrangement, and the solid alloy for obtaining is longrange disorder, the atom with metal material under normal circumstances
Arrangement there is no the crystal grain of crystal alloy and crystal boundary in periodically different with symmetry, and this kind of material is complete in microstructure
The full metal and alloy for recognizing for thousands of years and using different from the mankind, thus with a series of macroscopical special efficacy and excellent make
Use performance.With the contrast of conventional soft magnetic alloy, the P of soft magnetic amorphous alloy material1.7/50Below 0.2W/kg even can be reached, and it is high
Frequency P0.1/10kAnd P0.05/20k5W/kg or so can be reached, the performance of some trades mark can will be excellent several than best silicon steel sheet
More than times.Perm and Jin Chang refer to iron-nickel alloy, and nickel content, in 30-90% scopes, is also that a kind of soft magnetism widely applied is closed
Gold, its main applying frequency scope is also in 50-20kHz.That is, the soft magnetic materials such as amorphous, perm and gold is in a frequency wider
In the range of all have extremely excellent magnetic characteristic.
The acquisition of magnetic property of soft magnetic material is main by three kinds of modes, monolithic method, square circle method and ring specimen method.Monolithic method
It is, by additional yoke, to connect two sections of monolithic sample, makes sample that there is closed magnetic circuit to complete magnetic property in magnetic history
Measurement, but, due to the influence of additional yoke, measurement result is difficult accurately to exclude the influence of yoke；Ring specimen prepares difficulty,
Poor repeatability, although acquisition data are more reliable, but it is larger to be applied to the difficulty of industrial big production.The key problem of square circle method be for
Ensure and effective magnetic result, primary and secondary potential difference balance are obtained in the range of nominal frequencies, primary and secondary coil is that requirement keeps one
Cause, this is also resulted in, need acquisition highfield, low order step voltage to there is certain contradiction in high frequency.Meanwhile, soft magnetism is non-at this stage
The main measurement of the wideband application soft magnetic materials such as brilliant, perm and gold is according to the metering system of ingot iron, i.e. tried using annular
Quadrat method.The method is, using a kind of stationary annular style mould, to be weighed in empty mould, is then slowly involved in soft magnetic materials
Mould, is calculated around material original weight is entered using weight difference, then after coiling isolation protective material, further around primary and secondary coil processed,
Effective Magnetic Measurement is carried out to soft magnetic materials after primary and secondary coil is accessed into soft magnetism measuring system, measurement time is long, weight
Renaturation is relatively poor.
In addition, the measurement frequency scope of the soft magnetic materials such as amorphous, perm and gold is larger, it is existing from 50Hz to 100kHz
Soft magnetism gage frame tends not to cover this frequency range, i.e. otherwise low frequency, otherwise high frequency, must otherwise select different
Measurement structure.
The content of the invention
The purpose of this utility model seeks to provide a kind of soft magnetism wideband magnetic that measurement frequency scope is big, measurement error is small
Measurement apparatus.
To achieve the above object, the soft magnetism wideband magnetic measuring device designed by the utility model, it includes support frame,
The support frame is rectangular configuration, and the cross section of the four edges frame of the support frame is rectangle, test sample insertion frame
In inner chamber, coil is wound with outside the frame；It is characterized in that, access port is provided with a frame, described to connect
High frequency sub-frame, the high frequency sub-frame and the embedded cooperation of access port, the high frequency sub-frame are provided with entrance
Outside is wound with high frequency secondary coil.
Further, the access port is located at frame middle part.
Further, the coil of frame outside winding includes armature winding and secondary windings.
Further, the high frequency secondary coil is the secondary windings of 10~100 circles, and can be made according to actual conditions
The high frequency sub-frame of the different numbers of turn, also can the directly direct tap on the coil of high frequency sub-frame, directly formed different
The number of turn.
Further, the armature winding and secondary windings of the coil of frame outside winding are 700 circles.
Further, it is provided with sample splint at the corner of the support frame and access port.
The utility model needs acquisition highfield, low order step voltage to there is certain contradiction in high frequency for square circle mensuration
Problem, by design can flexible access high frequency sub-frame and secondary coil, can according to the difference of specific measurement frequency, select
Select different number of secondary turns, it is only necessary to change different high frequency sub-frames before measuring and be capable of achieving to each frequency band magnetic
The measurement of energy.The characteristics of the utility model has simple structure, easy realization, measurement frequency wide ranges, measurement error is small.
Brief description of the drawings
Fig. 1 is main structure diagram of the present utility model；
Fig. 2 is the structural representation after removal high frequency sub-frame in Fig. 1
In figure：Support frame 1, frame 1.1, access port 1.2, high frequency sub-frame 2, sample splint 3.
Specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
A kind of soft magnetism wideband magnetic measuring device as depicted in figs. 1 and 2, it includes support frame 1 of rectangular configuration.Support
The length of the four edges frame of framework 1 is 25cm, and the cross section of frame 1.1 is rectangle, and test sample inserts the inner chamber of frame 1.1
In, the two ends of test sample are shelved on and are arranged on the sample splint 3 at the two ends of frame 1.1, and sample splint 3 is located at support frame 1
Corner.The test sample of mutually overlap joint connects to form closed magnetic circuit.The coil of the outside of frame 1.1 winding include armature winding and
Secondary windings, armature winding and secondary windings are 700 circles.Access port 1.2, access port 1.2 are wherein provided with a line frame 1.1
In be provided with sample splint 3 and high frequency sub-frame 2, high frequency sub-frame 2 and the embedded cooperation of access port 1.2 are positioned over sample
On product supporting plate 3.The high frequency secondary coil of 10~100 circles is wound with outside high frequency sub-frame 2.So, magnetic measuring device shape
Into N1:N2:The structure of N3, N1, N2 are the armature winding and secondary windings of the outside of frame 1.1 winding, using the 700 of standard
Circle structure, N3 is that core increases structure, i.e. the high frequency secondary coil of the outside of high frequency sub-frame 2 winding, is usually arranged as 10-
100 circles, can voluntarily grope according to the sample trade mark and range of target frequencies and determine the N3 numbers of turn.
To overcome limitation of the square circle method to measurement range, the utility model is in four frames 1.1 of the square circle of support frame 1
An appropriate location selection opening form access port 1.2, the interposition of some in four frames 1.1 is proposed with principle
Put, and increase high frequency sub-frame 2 in access port 1.2, different secondary turns can be selected according to the difference of specific measurement frequency
Number, it is only necessary to change the different high frequency sub-frames 2 i.e. achievable measurement to each frequency band magnetic property before measuring.
According to measuring principle U2=4.44BSNf, wherein U2It is secondary voltage, B is magnetic induction intensity, and N is number of secondary turns, S
It is sample net sectional area, f is frequency.In actual measurement process, such as to require that the frequency of measurement is higher, i.e., when f is higher, B
It is material inherent characteristic, S is fixed value when sample is fixed, therefore, maximally effective method is exactly to reduce number of secondary turns N to use up
Amount reduces U2, under conditions of plant capacity is limited, if high frequency measurement need to be carried out, in this programme, as long as by adjustment
Number of secondary turns in high frequency sub-frame 2, when plant capacity is certain, can be obtained with maximally effective utilization capacity of equipment
Preferable measurement result.
The step of being measured using above-mentioned soft magnetism wideband magnetic measuring device is included：
Step one：By sample making into the test sample of 30 × 300mm, at least require that test sample weight is no less than
120g。
Step 2：Suitable number of secondary turns is selected according to measurement frequency scope, and capacity of equipment.According to plant capacity, with
And secondary voltage formula, calculate and obtain suitable number of turn scope.In principle, the number of secondary turns of frequency more high selection can be lower,
Minimum 1 circle.
Step 3；The high frequency sub-frame 2 of the number of secondary turns for completing will be selected to be put into the frame 1.1 of support frame 1.
Step 4；By the primary coil outside frame 1.1, and the coil of high frequency sub-frame 2 is led to as secondary coil
Cross access soft magnetism measuring system.
Step 5；Magnetic property detection is carried out to sample according to existing soft magnetism measuring system.
Experimental data：
The correction data of same batch soft magnetism sample difference metering system as shown in table 1, using with a batch of
The soft magnetic materials of 0.025mm thickness is respectively adopted different patterns and measures, and the utility model is can be seen that from upper table result
Wideband soft magnetic materials standard method of measurement (ring specimen) such as measurement result and existing amorphous, perm and the gold of wideband square circle obtain
The measuring result error for obtaining meets the measurement of national Specification within 1.5%.
Table 1 is contrasted with the comparing result of batch soft magnetism sample difference metering system
It is last it should be noted that above specific embodiment is only used to illustrate the art of this patent scheme and unrestricted, to the greatest extent
Pipe has been described in detail with reference to preferred embodiment to this patent, it will be understood by those within the art that, can be to this
The technical scheme of patent is modified or equivalent, and without deviating from the spirit and scope of the art of this patent scheme, it all should
Cover in the middle of the right of this patent.
Claims (6)
1. a kind of soft magnetism wideband magnetic measuring device, it is rectangular configuration including support frame (1) support frame (1), institute
The cross section for stating the four edges frame (1.1) of support frame (1) is rectangle, in test sample insertion frame (1.1) inner chamber, the side
Coil is wound with outside frame (1.1)；It is characterized in that：Access port (1.2), the access are provided with one frame (1.1)
High frequency sub-frame (2), the high frequency sub-frame (2) and access port (1.2) embedded cooperation, institute are provided with mouth (1.2)
State and be wound with high frequency secondary coil outside high frequency sub-frame (2).
2. soft magnetism wideband magnetic measuring device according to claim 1, it is characterised in that：The access port (1.2) is located at
Frame (1.1) middle part.
3. soft magnetism wideband magnetic measuring device according to claim 1, it is characterised in that：Twined outside the frame (1.1)
Around coil include armature winding and secondary windings.
4. the soft magnetism wideband magnetic measuring device according to claims 1 or 2, it is characterised in that：The high frequency secondary wire
It is the secondary windings of 10~100 circles to enclose.
5. soft magnetism wideband magnetic measuring device according to claim 3, it is characterised in that：Twined outside the frame (1.1)
Around coil armature winding and secondary windings be 700 circles.
6. soft magnetism wideband magnetic measuring device according to claim 1, it is characterised in that：The four of the support frame (1)
Angle and access port (1.2) place are provided with sample splint (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621336978.6U CN206281963U (en) | 2016-12-07 | 2016-12-07 | Soft magnetism wideband magnetic measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621336978.6U CN206281963U (en) | 2016-12-07 | 2016-12-07 | Soft magnetism wideband magnetic measuring device |
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| CN206281963U true CN206281963U (en) | 2017-06-27 |
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| CN201621336978.6U Active CN206281963U (en) | 2016-12-07 | 2016-12-07 | Soft magnetism wideband magnetic measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107942270A (en) * | 2017-10-20 | 2018-04-20 | 昆明理工大学 | A kind of method using computer determination hexagonal crystal system metal oxide magnetic type |
-
2016
- 2016-12-07 CN CN201621336978.6U patent/CN206281963U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107942270A (en) * | 2017-10-20 | 2018-04-20 | 昆明理工大学 | A kind of method using computer determination hexagonal crystal system metal oxide magnetic type |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170707 Address after: 430083, Hubei Wuhan Qingshan District Factory No. 2 Gate joint stock company organs Patentee after: Wuhan iron and Steel Company Limited Address before: 430083 Qingshan District, Hubei, Wuhan Patentee before: WUHAN IRON AND STEEL CORPORATION |