CN2586219Y - 3-D magnetic field demonstration instrument - Google Patents
3-D magnetic field demonstration instrument Download PDFInfo
- Publication number
- CN2586219Y CN2586219Y CN 02279698 CN02279698U CN2586219Y CN 2586219 Y CN2586219 Y CN 2586219Y CN 02279698 CN02279698 CN 02279698 CN 02279698 U CN02279698 U CN 02279698U CN 2586219 Y CN2586219 Y CN 2586219Y
- Authority
- CN
- China
- Prior art keywords
- magnetic field
- magnet
- magnetic
- small
- small magnetic
- Prior art date
- 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.)
- Expired - Fee Related
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- Magnetic Treatment Devices (AREA)
- Instructional Devices (AREA)
Abstract
The utility model relates to an instrument, particularly a 3-D magnetic field demonstration instrument, which can be used for proving that the surrounding space of a magnet has a magnetic field and an N pole of each of small magnetic needles is provided with a definite direction. In the middle, a non-magnetic metal wire is made into a cuboid frame in which a strip-shaped magnet can be put; the non-magnetic metal wire used for the outer side of the frame is made into a plurality of concentric net-shaped spherical surfaces; a plurality of small magnetic needles which can freely rotate around the wire are positioned on the non-magnetic metal wire which is perpendicular to the magnet. When the strip-shaped magnet is inserted into the cuboid frame, because of the action that a magnetic field exists on the periphery of the magnet, N poles of all the small magnetic needles have the definite direction of each other.
Description
Affiliated technical field
The utility model directly applies to teaching field, be magnetic field and the magnetic induction line in junior middle school, senior middle school, the College Physics " electromagnetics ", can prove space around the magnet exist magnetic field and magnetic field around the every bit small magnetic needle N utmost point definite sensing is arranged---the direction of magnetic induction line.
Background technology:
On the current textbook, the magnetic field demonstrator that uses in laboratory plane just only, for the every bit small magnetic needle N utmost point around three-dimensional magnetic field and the magnetic field the own sensing of determining (being the direction of magnetic induction line) is arranged, the student is difficult to understanding.
Summary of the invention:
Technical problem to be solved in the utility model is: can prove that the space around the magnet exists magnetic field, and can find out significantly that also the N utmost point of the small magnetic needle of surrounding space every bit has certain sensing (direction of magnetic induction line).
The technical scheme that the utility model technical solution problem is adopted is: the rectangular parallelepiped frame that can put into bar magnet is made with the nonmagnetic metal silk in the centre, frame external application nonmagnetic metal silk make concentric netted sphere several, on the nonmagnetic metal silk vertical, place the small magnetic needle that several institute's energy wrapping wires freely rotate with magnet.In the time of in bar magnet inserts the rectangular parallelepiped frame, owing to exist the effect in magnetic field around the magnet, the N utmost point of small magnetic needle all respectively has the direction of oneself determining.
The beneficial effects of the utility model are: can find out the direction of three-dimensional magnetic field and magnetic induction line very easily when there is magnetic field in check around the magnet, only Duo the nonmagnetic metal silk than original demonstrator.
Description of drawings
1 magnet, 2 nonmagnetic metal silks, 3 small magnetic needles among the figure
Embodiment
Shape of the present utility model in the drawings resembles the One Earth One Family instrument, constitutes several concentric netted spheres by warp and parallel, and small magnetic needle is fixed in the certain limit of parallel and freely rotates.
Claims (2)
1, a kind of three-dimensional magnetic field demonstrator, the rectangular parallelepiped frame that can put into bar magnet is made with the nonmagnetic metal silk in the centre, frame external application nonmetal wire is made several concentric netted spheres, it is characterized in that: place the small magnetic needle that several can freely rotate around nonmetal wire on the nonmetal wire vertical with magnet.
2. three-dimensional magnetic field according to claim 1 demonstrator is characterized in that: it is rhombus that the small magnetic needle of N, the S utmost point is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02279698 CN2586219Y (en) | 2002-10-23 | 2002-10-23 | 3-D magnetic field demonstration instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02279698 CN2586219Y (en) | 2002-10-23 | 2002-10-23 | 3-D magnetic field demonstration instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2586219Y true CN2586219Y (en) | 2003-11-12 |
Family
ID=33742712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02279698 Expired - Fee Related CN2586219Y (en) | 2002-10-23 | 2002-10-23 | 3-D magnetic field demonstration instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2586219Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113409663A (en) * | 2021-07-01 | 2021-09-17 | 方昶朔 | Omnibearing magnetic field display device |
-
2002
- 2002-10-23 CN CN 02279698 patent/CN2586219Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113409663A (en) * | 2021-07-01 | 2021-09-17 | 方昶朔 | Omnibearing magnetic field display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |