CN207528902U - A kind of system of indirect measurement magnetic field size - Google Patents
A kind of system of indirect measurement magnetic field size Download PDFInfo
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- CN207528902U CN207528902U CN201721714459.3U CN201721714459U CN207528902U CN 207528902 U CN207528902 U CN 207528902U CN 201721714459 U CN201721714459 U CN 201721714459U CN 207528902 U CN207528902 U CN 207528902U
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- magnetic
- magnetic field
- electronic balance
- magnetic conduction
- conduction armature
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Abstract
The utility model discloses a kind of systems of indirect measurement magnetic field size, system includes electronic balance, magnetic conduction armature and magnet holder platform three parts, the magnetic conduction armature is set to above electronic balance, the magnet holder platform includes cup dolly, the brandreth being set on cup dolly, the brandreth connect luggage carrier by screw knob.The it is proposed of technical solutions of the utility model realizes the indirect measurement to magnetic field size, and the system simple structure, equipment needed for measurement structure is easily obtained, and manufacture is at low cost, easy to operate, horizontal to the requirement of user's level of skill not high.The magnetic-field measurement suitable for industrial production, examines whether magnetic field changes, and is particularly suitable for the inspection of the strong and weak situation of the variation of permanent magnet remanent magnetism and surrounding magnetic field.
Description
Technical field
The utility model belongs to the magnetic-field measurement in magnetic field measurement technology field, more particularly to magnet, specially a kind of indirect
Measure magnetic field size and its system of variation.
Background technology
Magnetic-field measurement is the problem of being frequently run onto in scientific research, teaching and production practices, and quantitative grasp various types of materials is in magnetic
Magnetic characteristic in, has great significance to the exploitation of the design of electrical equipment, manufacture and new material.In addition in biology
The fields such as, medicine, chemistry, geology, the magnetic signature for measuring various magnetisable materials is of crucial importance, particularly grasps permanent magnetic
The changes of magnetic field and its rule of iron, are of great significance to fields such as production, scientific researches.
From the point of view of the principle of measurement, the method for magnetic-field measurement can be summarized as following several：Magnetic method, electromagnetic induction method, magnetic
Open gate method, galvanomagnetic-effect method, Pumping Magnetic Resonance Method, superconductivity effects method, magneto-optic effect method etc..Wherein magnetic method is using in tested magnetic field
Magnetized object or hot-wire coil and tested magnetic field between the mechanical force that interacts measure magnetic field.Electromagnetic induction method is with electricity
Measurement Method for Magnetic Field based on law of magnetic induction.Galvanomagnetic-effect method be using in metal or semiconductor by electric current in outer magnetic
The galvanomagnetic-effect that generates measures a kind of method in magnetic field under the action of.There is test equipments for existing magnetic-field-measuring device
The shortcomings of equipment is complicated, and apparatus measures are expensive has instrument user higher knowledge and level of skill requirement.Sometimes in life
Production, often not high to magnetic-field measurement required precision in teaching, only rough acquisition magnetic field size and its situation of change, if using
It will cause the wastes of instrument for accurate magnetic field measuring instrument.
Utility model content
In order to solve the problems in the existing technology, a kind of indirect measurement magnetic field size of the utility model offer is
System, overcome in the prior art magnetic-field-measuring device there is test equipment equipment complexity, apparatus measures it is expensive wait the problem of.
The technical solution of the utility model is：A kind of system of indirect measurement magnetic field size is held in the mouth including electronic balance, magnetic conduction
Iron and magnet holder platform three parts, the magnetic conduction armature are set to above electronic balance, and the magnet holder platform includes circular base
Seat, the brandreth being set on cup dolly, the brandreth connect luggage carrier by screw knob.
The electronic balance tray surface is PVC material.
A kind of method of indirect measurement magnetic field size, includes the following steps：
(1) when the magnetic conduction armature top on electronic balance is without magnetic field, since electronic balance is by magnetic conduction armature gravity work
With display screen shows its weight automatically, is denoted as m1；
(2) adjustment screw knob makes luggage carrier be denoted as h away from magnetic conduction armature certain altitude；
(3) when magnetic conduction armature is influenced by the permanent magnet field being placed on luggage carrier, magnetic conduction armature is sufficiently large, top
Magnetic field is entirely fallen in the horizontal plane of magnetic conduction armature in magnetic conduction armature, and due to by magnetic fields, magnetic conduction armature will be by
Power vertically upward is known that the pressure of the magnetic conduction armature suffered by electronic balance will reduce, electronics day by the equilibrium principle of power
HUD display screen show value will reduce, and registration is m after stablizing2；
(4) magnetic conduction armature 2 is (m away from horizontal plane institute stress at luggage carrier h1-m2)·g；
(5) magnetic conduction armature is away from horizontal plane magnetic field intensity at luggage carrier hFor space permeability, μ=
4π×10-7H/m；S is magnetic conduction armature area；M, S, B unit are respectively kg, m in formula2、T。
Step (2) the adjustment screw knob makes luggage carrier horizontal and at magnetic conduction armature center.
The beneficial effects of the utility model are：The it is proposed of technical solutions of the utility model is realized to the indirect of magnetic field size
It measures, the system simple structure, equipment needed for measurement structure is easily obtained, and manufacture is at low cost, easy to operate, to user's technical ability
Level requirement level is not high.The magnetic-field measurement suitable for industrial production, examines whether magnetic field changes, and is particularly suitable for permanent
Magnet remanent magnetism changes and the inspection of the strong and weak situation of surrounding magnetic field.
Description of the drawings
Fig. 1 is the system structure diagram that the utility model measures magnetic field size indirectly；
Wherein：1-brandreth；2-magnetic conduction armature；3-electronic balance；4-cup dolly；5-luggage carrier；6-screw revolves
Button.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
The utility model magnetic field measurement system includes three parts：Electronic balance 3, magnetic conduction armature 2 and magnet holder platform, the dress
Basic structure is put as shown in Figure 1, magnetic conduction armature 2 is set to above electronic balance 3, the magnet holder platform includes cup dolly 4,
The brandreth 1 being set on cup dolly 4, the brandreth 1 connect luggage carrier 5 by screw knob 6.Wherein 3 pallet of electronic balance
Surface is made by PVC material, will not be influenced by magnetic field with interfering, and range of weighing is 0~6kg, resolution ratio 0.2g；Tray surface
280 × 210mm of size, power AC220V ± 10%, 50Hz ± 1Hz, 2 size of magnetic conduction armature, 280 (L) × 210 (W) × 2 (H)
Mm, material are iron.1 height 300mm of brandreth, 5 radius R50mm of luggage carrier.
System and method for principle：When 2 top of magnetic conduction armature on electronic balance 3 is without magnetic field, due to electronic balance 3 by
2 gravity of magnetic conduction armature, display screen show its weight, are denoted as m automatically1；Adjustment screw knob 6 makes luggage carrier 5 away from magnetic conduction
2 certain altitude of armature, is denoted as h.When magnetic conduction armature 2 is influenced by the permanent magnet field being placed on luggage carrier 5, magnetic conduction armature
2 is sufficiently large, and top magnetic field is entirely fallen in the horizontal plane of magnetic conduction armature 2 in magnetic conduction armature, due to by magnetic fields, magnetic conduction
Armature will be known that the pressure of the magnetic conduction armature 2 suffered by electronic balance 3 will by power vertically upward by the equilibrium principle of power
It can reduce, 3 display screen show value of electronic balance will reduce, and registration is m after stablizing2；Then magnetic conduction armature 2 away from luggage carrier h at
Horizontal plane institute stress is (m1-m2) g represents that suffered magnetic field intensity isμ is space permeability, μ=
4π×10-7H/m；S is magnetic conduction armature area；M, S, B unit are respectively kg, m in formula2、T。
This magnetic field measurement system specific embodiment is as follows：
(1) it opens electronic balance 3 and resets.Magnetic conduction armature 2 is positioned on electronic balance 3 and reads registration, is denoted as m1；
(2) it keeps 3 measuring state of electronic balance constant, adjusts 3 relative position of cup dolly 4 and electronic balance, make its load
Rack 5 is horizontal and at 2 center of magnetic conduction armature；
(3) magnet to be measured is placed on luggage carrier 5.Adjusting screw knob 6 makes luggage carrier 5 apart from magnetic conduction armature height one
It is fixed, h is denoted as, electronic balance registration is read, is denoted as m2；
(4) it is (m to measure magnetic conduction armature 2 away from horizontal plane institute stress at luggage carrier h using this magnetic field measurement system1-m2)·g；
(5) magnetic conduction armature is away from horizontal plane magnetic field intensity at luggage carrier hμ is space permeability, μ
=4 π × 10-7H/m；S is magnetic conduction armature area；M, S, B unit are respectively kg, m in formula2、T。
Although the utility model is described above in conjunction with attached drawing, the utility model is not limited to above-mentioned
Specific embodiment, above-mentioned specific embodiment is only schematical, is not restricted, the ordinary skill of this field
Personnel are not departing from the utility model aims and scope of the claimed protection under the enlightenment of the utility model,
Many forms can also be made, these are belonged within the scope of protection of the utility model.
Claims (2)
1. a kind of system of indirect measurement magnetic field size, which is characterized in that including electronic balance, magnetic conduction armature and magnet holder platform
Three parts, the magnetic conduction armature are set to above electronic balance, and the magnet holder platform includes cup dolly, is set to circular base
Brandreth on seat, the brandreth connect luggage carrier by screw knob.
2. measure the system of magnetic field size indirectly according to claim 1, which is characterized in that the electronic balance tray surface
For PVC material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721714459.3U CN207528902U (en) | 2017-12-11 | 2017-12-11 | A kind of system of indirect measurement magnetic field size |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721714459.3U CN207528902U (en) | 2017-12-11 | 2017-12-11 | A kind of system of indirect measurement magnetic field size |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207528902U true CN207528902U (en) | 2018-06-22 |
Family
ID=62579171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721714459.3U Expired - Fee Related CN207528902U (en) | 2017-12-11 | 2017-12-11 | A kind of system of indirect measurement magnetic field size |
Country Status (1)
| Country | Link |
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| CN (1) | CN207528902U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107797081A (en) * | 2017-12-11 | 2018-03-13 | 天津大学 | A kind of System and method for of the magnetic field size of measurement indirectly |
-
2017
- 2017-12-11 CN CN201721714459.3U patent/CN207528902U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107797081A (en) * | 2017-12-11 | 2018-03-13 | 天津大学 | A kind of System and method for of the magnetic field size of measurement indirectly |
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Legal Events
| 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: 20180622 Termination date: 20211211 |