CN204990918U - But electric magnetic phenomena's of sight demonstration instruments used for education - Google Patents
But electric magnetic phenomena's of sight demonstration instruments used for education Download PDFInfo
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- CN204990918U CN204990918U CN201520333986.4U CN201520333986U CN204990918U CN 204990918 U CN204990918 U CN 204990918U CN 201520333986 U CN201520333986 U CN 201520333986U CN 204990918 U CN204990918 U CN 204990918U
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- magnetic field
- visible light
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Abstract
The utility model provides a but electric magnetic phenomena's of sight demonstration instruments used for education, instruments used for education can be demonstrated including straight line current laboratory glassware, annular electric current laboratory glassware. The weak relation big or small with the electric current of relation, magnetic field strength that has magnetic field, magnetic field direction and the direction of current flow around the straight line current laboratory glassware demonstration straight line current, annular electric current laboratory glassware demonstrates the loop -line electric current has magnetic field, magnetic field direction and the direction of current flow's relation on every side, the magnetic field strength is weak and the relation of electric current size. The utility model has the advantages of can express a little less than the direction of current flow, magnetic field direction, the magnetic field strength directly perceivedly. The naked eye can see that magnetic field direction was along with the change when the direction of current flow changed, can express a little less than the direction of current flow, magnetic field direction, the magnetic field strength directly perceivedly. The naked eye can see that magnetic field direction was along with the change when the direction of current flow changed, the electric current size changes, and along with the change a little less than the magnetic field strength, magnetic field direction and the direction of current flow's change rule accord with ampere's rule.
Description
[technical field]
The utility model relates to a kind of instruments used for education, particularly relates to a kind of instruments used for education of visible light demonstrating electrical magnetic phenomenon.
[background technology]
In the teaching of secondary and high school physics " electromagnet phenomenon ", student also exists the relation of magnetic field, magnetic direction and direction of current around study electric current, magnetic field strong and weak with size of current be related to these knowledge time, all cannot see due to electric current and magnetic field and can not touch, application Ampere's law judges magnetic direction and direction of current, understand the Changing Pattern of magnetic field power, student feels more difficulty.
If utilize " visible light " and " visual pin " to represent the Changing Pattern in electric current and magnetic field, allow student's naked eyes can observe directly electric current and magnetic field and their change, the then existing direct feel of student, visual angle is had again to stimulate, greatly will motivate students' interest in learning, improve the learning efficiency of student.
[utility model content]
When the purpose of this utility model is to solve demonstrating electrical magnetic phenomenon, the change of the strong and weak and magnetic direction in the change of size of current and direction of current, magnetic field, student cannot see and can not touch, teacher can only be listened to lecture, understand with the imagination, perceptual knowledge can not be formed, the deficiency that teaching efficiency is general and the instruments used for education of a kind of novel visible light demonstrating electrical magnetic phenomenon provided.
The utility model is achieved through the following technical solutions: a kind of instruments used for education of visible light demonstrating electrical magnetic phenomenon, comprise straight line current experimental apparatus, ring current experimental apparatus.
The relation of the strong and weak and size of current in magnetic field, the relation of magnetic direction and direction of current, magnetic field is had around described straight line current experimental apparatus demonstration straight line current; The relation of the strong and weak and size of current in magnetic field, the relation of magnetic direction and direction of current, magnetic field is had around described ring current experimental apparatus demonstration ring current.
Described straight line current experimental apparatus comprises support transparency carrier, straight-bar, transparent panel, visible light, visual pin, auto transductor, switch, circuit board, automatically varying magnetic field device, power supply.
Described support transparency carrier is upper and lower two pieces, described straight-bar is through transparent panel center, described straight-bar stands upright between two pieces of substrates, and described transparent panel is fixed in the middle of straight-bar, and described straight-bar is vertical with described transparent panel face, described straight-bar is provided with visible light, described visible light connects auto transductor by circuit board, and described auto transductor is by circuit board connecting valve, and described transparent panel is provided with density difference can represent magnetic direction and strong and weak visual pin, the closer to straight-bar, visual pin is closeer; Described transparent panel can there is the expression magnetic direction that density is different and strong and weak annular visible light, annular visible light, for the concentric circles in the center of circle with certain point on straight-bar, described visual pin and visible light connect automatic varying magnetic field device by circuit board, and described automatic varying magnetic field device is by circuit board connecting valve.
When switch is to while closed, the visual pin on the visible light on straight-bar and transparent panel and visible light are started working, and auto transductor changes the size of current of the visible light on straight-bar, and the density degree of the visual pin on transparent panel, visible light changes; When switch closes to another side, the visual pin on the direction of current of the visible light on straight-bar and transparent panel, the direction of visible light all will change.
Further, described ring current experimental apparatus comprises transparency carrier, solenoid, visible light, visual pin, auto transductor, switch, circuit board, automatically varying magnetic field device, power supply.
Described solenoid is fixing on the transparent substrate, and half is face on the transparent substrate, and half is below transparency carrier; Described solenoid is provided with the visible light representing direction of current and size of current, and described visible light connects auto transductor by circuit board, and described auto transductor is by circuit board connecting valve; Described transparency carrier is provided with density difference can represent magnetic direction and strong and weak visual pin, described transparency carrier can also occur the expression magnetic direction that density is different and strong and weak visible light; Described visual pin, visible light connect automatic varying magnetic field device by circuit board, and described automatic varying magnetic field device is by circuit board connecting valve.
When switch is to while closed, visual pin on visible light on solenoid and transparency carrier, visible light are started working, auto transductor changes the size of current of the visible light on solenoid, and automatic varying magnetic field device changes the density degree of visual pin, visible light on transparency carrier.
When switch closes to another side, on the direction of current of the visible light on solenoid and transparency carrier, the direction of visual pin, visible light all will change; Auto transductor changes the size of current of the visible light on solenoid, the visual pin on automatic varying magnetic field device change transparency carrier, the density degree of visible light.
Further, described auto transductor changes size of current, and it is strong and weak that described automatic varying magnetic field device changes magnetic field.
Further, described switch is double-point double-throw switch, and described double-point double-throw switch changes direction of current.
The beneficial effects of the utility model are:
(1) straight line current experimental apparatus can represent straight line current direction, magnetic direction, magnetic field power intuitively; When naked eyes can see that direction of current changes, magnetic direction is along with change; When size of current changes, magnetic field is strong and weak along with change.The Changing Pattern of magnetic direction and direction of current meets Ampere's law, is conducive to the relation that Students ' Learning application Ampere's law judges magnetic direction and direction of current;
(2) loop wire Current experiments instrument can represent annular direction of current, magnetic direction, magnetic field power intuitively; When naked eyes can see that direction of current changes, magnetic direction is along with change; When size of current changes, magnetic field is strong and weak along with change, and the Changing Pattern of magnetic direction and direction of current meets Ampere's law, is conducive to the relation that Students ' Learning application Ampere's law judges magnetic direction and direction of current.
[accompanying drawing explanation]
Fig. 1 is the instruments used for education straight line current experimental apparatus structural representation of a kind of visible light demonstrating electrical of the utility model magnetic phenomenon;
Fig. 2 is the instruments used for education ring current experimental apparatus structural representation of a kind of visible light demonstrating electrical of the utility model magnetic phenomenon;
Reference numeral: 1, straight line current experimental apparatus; 11, transparency carrier is supported; 12, straight-bar; 13, transparent panel; 14, visible light; 15, visual pin; 16, auto transductor; 17, switch; 18, circuit board; 19, automatic varying magnetic field device; 20, power supply; 2, ring current experimental apparatus; 210 transparency carriers; 211, solenoid; 212, visible light; 213, visual pin; 214, auto transductor; 215, switch; 216, circuit board; 217, automatic varying magnetic field device; 218, power supply.
[embodiment]
Below in conjunction with the drawings and the specific embodiments, the utility model is described further:
Embodiment 1
As shown in Figure 1, described straight line current experimental apparatus 1 comprises support transparency carrier 11, straight-bar 12, transparent panel 13, visible light 14, visual pin 15, auto transductor 16, switch 17, circuit board 18, automatically varying magnetic field device 19, power supply 20.
Described support transparency carrier 11 is upper and lower two pieces, described straight-bar 12 is through transparent panel 13 center, described straight-bar 12 stands upright between two pieces of transparency carriers 11, described transparent panel 13 is fixed in the middle of straight-bar 12, described straight-bar 12 is vertical with described transparent panel 13, described straight-bar 12 is provided with visible light 14, described visible light 14 connects auto transductor 16 by circuit board 18, described auto transductor 16 is by circuit board 18 connecting valve 17, described transparent panel 13 is provided with density difference can represent magnetic direction and strong and weak visual pin 15, the closer to straight-bar 12, visual pin 15 is closeer, described transparent panel 13 can there is the expression magnetic direction that density is different and strong and weak annular visible light 14, annular visible light 14, for the concentric circles in the center of circle with certain point on straight-bar 12, described visual pin 15 and visible light 14 connect automatic varying magnetic field device 19 by circuit board 18, described automatic varying magnetic field device 19 is by circuit board 18 connecting valve 17.
When switch 17 is to while closed, visible light 14 on straight-bar 12 and the visual pin 15 on transparent panel 13 and visible light 14 are started working, auto transductor 16 changes the size of current of the visible light 14 on straight-bar 12, the density degree of the visual pin 15 on transparent panel 13, visible light 14 changes, when switch 17 closes to another side, the visual pin 15 on the direction of current of the visible light 14 on straight-bar 12 and transparent panel 13, the direction of visible light 14 all will change.
Preferably, described auto transductor 16 changes size of current, and described automatic varying magnetic field device 19 changes magnetic field power.
Preferably, described switch 17 is double-point double-throw switch, and described double-point double-throw switch changes direction of current.
Embodiment 2
As shown in Figure 2, described ring current experimental apparatus 2 comprises transparency carrier 210, solenoid 211, visible light 212, visual pin 213, auto transductor 214, switch 215, circuit board 216, automatic varying magnetic field device 217, power supply 218, described solenoid 211 is fixed on transparency carrier 210, half is on transparency carrier 210, half is below transparency carrier 210, described solenoid 211 is provided with the visible light 212 representing direction of current and size of current, described visible light 212 connects auto transductor 214 by circuit board 216, described auto transductor 214 is by circuit board 216 connecting valve 215, described transparency carrier 210 is provided with density difference can represent magnetic direction and strong and weak visual pin 213, described transparency carrier 210 can also there is the expression magnetic direction that density is different and strong and weak annular visible light 212, described visual pin 213, visible light 212 connects automatic varying magnetic field device 217 by circuit board 216, described automatic varying magnetic field device 217 is by circuit board 216 connecting valve 215,
When switch 215 is to while closed, visible light 212 on solenoid 211 and the visual pin 213 on transparency carrier, visible light 212 are started working, auto transductor 214 changes the size of current of the visible light 212 on solenoid 211, and automatic varying magnetic field device 217 changes the density degree of visual pin 213, visible light 212 on transparency carrier 210;
When switch 215 closes to another side, on the direction of current of the visible light 212 on solenoid 211 and transparency carrier 210, the direction of visual pin 213, visible light 212 all will change, auto transductor 214 changes the size of current of the visible light 212 on solenoid 211, and automatic varying magnetic field device 217 changes the density degree of visual pin 213 on transparency carrier 210, visible light 212.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also carry out suitable change and amendment to above-mentioned embodiment.Therefore, the utility model is not limited to embodiment disclosed and described above, also should fall in the protection domain of claim of the present utility model modifications and changes more of the present utility model.In addition, although employ some specific terms in this instructions, these terms just for convenience of description, do not form any restriction to the utility model.
Claims (4)
1. instruments used for education for visible light demonstrating electrical magnetic phenomenon, is characterized in that: described instruments used for education comprise straight line current experimental apparatus, ring current experimental apparatus, has magnetic field around described straight line current experimental apparatus demonstration straight line current, the relation of magnetic direction and direction of current, magnetic field power and the relation of size of current, have magnetic field around described ring current experimental apparatus demonstration loop wire electric current, the relation of magnetic direction and direction of current, the relation of magnetic field power and size of current, described straight line current experimental apparatus comprises support transparency carrier, pole, straight-bar, transparent panel, visible light, visual pin, auto transductor, switch, circuit board, automatic varying magnetic field device, power supply, described support transparency carrier is upper and lower two pieces, described straight-bar is through transparent panel center, described straight-bar stands upright between two pieces of transparency carriers, described transparent panel is fixed in the middle of straight-bar, described straight-bar is vertical with described transparent panel face, described straight-bar is provided with visible light, described visible light connects auto transductor by circuit board, described auto transductor is by circuit board connecting valve, and described transparent panel is provided with density difference can represent magnetic direction and strong and weak visual pin, the closer to straight-bar, visual pin is closeer, described transparent panel can occur the different expression magnetic direction of density and strong and weak annular visible light, annular visible light, be the concentric circles in the center of circle with certain point on straight-bar, described visual pin and visible light connect automatic varying magnetic field device by circuit board, and described automatic varying magnetic field device is by circuit board connecting valve.
2. the instruments used for education of visible light demonstrating electrical magnetic phenomenon according to claim 1, it is characterized in that: described ring current experimental apparatus comprises substrate, solenoid, visible light, visual pin, auto transductor, switch, circuit board, automatic varying magnetic field device, power supply, described solenoid is fixed on substrate, half is at thereon, half is below substrate, described solenoid is provided with the visible light representing direction of current and size of current, described visible light connects auto transductor by circuit board, described auto transductor is by circuit board connecting valve, described substrate is provided with density difference can represent magnetic direction and strong and weak visual pin, described substrate can also there is the expression magnetic direction that density is different and strong and weak annular visible light, described visual pin, visible light connects automatic varying magnetic field device by circuit board, described automatic varying magnetic field device is by circuit board connecting valve.
3., according to the instruments used for education of the arbitrary described visible light demonstrating electrical magnetic phenomenon of claim 1,2, it is characterized in that: described auto transductor changes size of current, it is strong and weak that described automatic varying magnetic field device changes magnetic field.
4., according to the instruments used for education of the arbitrary described visible light demonstrating electrical magnetic phenomenon of claim 1,2, it is characterized in that: described switch is double-point double-throw switch, described double-point double-throw switch changes direction of current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520333986.4U CN204990918U (en) | 2015-05-15 | 2015-05-15 | But electric magnetic phenomena's of sight demonstration instruments used for education |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520333986.4U CN204990918U (en) | 2015-05-15 | 2015-05-15 | But electric magnetic phenomena's of sight demonstration instruments used for education |
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| CN204990918U true CN204990918U (en) | 2016-01-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106157764A (en) * | 2015-05-15 | 2016-11-23 | 刘绍家 | A kind of instruments used for education of visible light demonstrating electrical magnetic phenomenon |
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- 2015-05-15 CN CN201520333986.4U patent/CN204990918U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106157764A (en) * | 2015-05-15 | 2016-11-23 | 刘绍家 | A kind of instruments used for education of visible light demonstrating electrical magnetic phenomenon |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| 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: 20160120 Termination date: 20190515 |