CN2240177Y - Electromagnet laboratory - Google Patents
Electromagnet laboratory Download PDFInfo
- Publication number
- CN2240177Y CN2240177Y CN 95213906 CN95213906U CN2240177Y CN 2240177 Y CN2240177 Y CN 2240177Y CN 95213906 CN95213906 CN 95213906 CN 95213906 U CN95213906 U CN 95213906U CN 2240177 Y CN2240177 Y CN 2240177Y
- Authority
- CN
- China
- Prior art keywords
- transparent cylinder
- solenoid
- permanent magnet
- cylinder
- binding posts
- 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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- Instructional Devices (AREA)
Abstract
The utility model discloses an electromagnet experimental device for physical experiments. The experimental device is composed of a base, a transparent cylinder and a display. The lower part of the transparent cylinder is provided with an electromagnetic coil, and the middle part of the transparent cylinder is provided with a permanent magnet or a soft iron block; the permanent magnet or the soft iron block are connected with the display via a connecting rod; three binding posts are arranged on the base, and the binding posts respectively control different turn numbers of the electromagnetic coil; matched with a power supply, a sliding resistor, an ammeter and a transfer switch, the utility model can be used for demonstrating all properties of the electromagnetic interaction in experimental courses of physics in middle schools.
Description
The utility model relates to a kind of experimental provision that shows electromagnetic interaction character.
At present, when Physical Experiment demonstration electromagnetic property is done by school, there is not the complete experimental provision of a cover that all character of electromagnetic interaction are demonstrated out, be scattered ground, demonstration is neither intuitively inaccurate again intuitively, bring inconvenience to the physics teaching experiment class, influence the experimental teaching quality.
The purpose of this utility model is exactly to go up all character whole intuitive and accurate demonstrations in a tester of relevant electromagnetic interaction in the physics of middle school are come out, to improve the physics teaching experiment effect.
The purpose of this utility model is achieved in that at tester base (6) upward installs a transparent cylinder (2), one round barrel cover (11) is arranged at cylinder (2) top, the transparent cylinder bottom is placed with solenoid (4), be provided with a number of turn wall (5) in the solenoid (4), also have a permanent magnet or soft iron piece (3) in the cylinder (2), permanent magnet or soft iron piece (3) link to each other with display (1) by a connecting rod (10) again.Be provided with three binding posts (7), (8), (9) on tester base (6), three binding posts are controlled the different solenoid numbers of turn respectively, and binding post (9) connects switch K by swept resistance R, reometer A
2, binding post (7), (8) two wiring are again by coil turn alteration switch K
1Link to each other with power supply.
The utility model is simple in structure, function is many, good demonstration effect.
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing:
Demonstration electricity produces magnetic, when magnetic strengthens with the increase of electric current, iron block (3) is hung on the display (1) connection switch K by connecting rod (10)
2, solenoid has electric current to pass through in (4), produces magnetic, promotes iron block (3) motion, and the size of its magnetic shows on display (1) by iron block (3) motion.When changing size of current by swept resistance R, the magnetic variation that solenoid (4) produces also shows on display thereupon.Be that electric current increases, magnetic strengthens, otherwise then magnetic reduces.
By coil turn alteration switch K
1, regulate the coil turn that electric current passes through, under the identical strength of current from the display (1) as can be seen, coil turn increases, magnetic also strengthens.When replacing the soft iron piece with permanent magnet, change the direction of current of circuit, the direction of motion of permanent magnet also changes.
Claims (1)
1, a kind of electromagnet experimental apparatus of demonstrating electromagnetic interaction character, it is characterized in that a transparent cylinder (2) upward being installed at tester base (6), one round barrel cover (11) is arranged at cylinder top, solenoid (4) is equipped with in transparent cylinder (2) bottom, be provided with a number of turn wall (5) in the solenoid (4), also have a permanent magnet or soft iron piece (3) to link to each other with display (1) by a connecting rod (10) again in the cylinder (2), on tester bottom (6), be provided with three binding posts (7), (8), (9), three binding posts are controlled the different solenoid numbers of turn respectively, binding post (9) is by swept resistance R, and reometer A connects switch K
2Binding post (7), (8) two wiring circle number of turn alteration switch K
1, link to each other with power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95213906 CN2240177Y (en) | 1995-05-25 | 1995-05-25 | Electromagnet laboratory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95213906 CN2240177Y (en) | 1995-05-25 | 1995-05-25 | Electromagnet laboratory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2240177Y true CN2240177Y (en) | 1996-11-13 |
Family
ID=33863670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95213906 Expired - Fee Related CN2240177Y (en) | 1995-05-25 | 1995-05-25 | Electromagnet laboratory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2240177Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108376504A (en) * | 2018-03-16 | 2018-08-07 | 彭芙贞 | A kind of physics education resistance entertaining display type amusement equipment |
| CN108806428A (en) * | 2018-05-31 | 2018-11-13 | 王强 | A kind of electromagnet teaching experimental provision |
-
1995
- 1995-05-25 CN CN 95213906 patent/CN2240177Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108376504A (en) * | 2018-03-16 | 2018-08-07 | 彭芙贞 | A kind of physics education resistance entertaining display type amusement equipment |
| CN108806428A (en) * | 2018-05-31 | 2018-11-13 | 王强 | A kind of electromagnet teaching experimental provision |
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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 |