CN206711471U - Double pendulum type electromagnetic damping drives demonstration device - Google Patents
Double pendulum type electromagnetic damping drives demonstration device Download PDFInfo
- Publication number
- CN206711471U CN206711471U CN201720386215.0U CN201720386215U CN206711471U CN 206711471 U CN206711471 U CN 206711471U CN 201720386215 U CN201720386215 U CN 201720386215U CN 206711471 U CN206711471 U CN 206711471U
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- type electromagnetic
- plate
- demonstration device
- electromagnetic damping
- pendulum type
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Abstract
The utility model is that double pendulum type electromagnetic damping drives demonstration device, including base, support, the slide bar of magnetic pendulum and slotted hole, has following progressive part using this technical scheme：1st, using hollow aluminum pipe as aluminum steel, the movement locus that can be always ensured that magnetic pendulum is the arc of same vertical plane rule, avoids the influence factor in experimentation from influenceing experiment effect；2nd, one or two magnetic pendulum is set to be beneficial to carry out contrast experiment；3rd, the slotted eye on the slide bar set can need to install various additional devices according to experiment, realize a variety of demonstrating effects of teaching aid.
Description
Technical field
It the utility model is related to educational facilities technical field, more particularly to double pendulum type electromagnetic damping driving demonstration device.
Background technology
Electromagnetic damping phenomenon comes from electromagnetic induction principle, when conductor moves in magnetic field, due to cut the magnetic line of force, just
Induced-current can be produced, induced-current can make conductor, and the direction of Ampere force always hinders the motion of conductor by Ampere force.Damping
Phenomenon is the important content of Middle School Physics study, in order to increase the understanding of student, it will usually coordinates corresponding Physical Experiment
Understand, but the teaching aid used now is not obvious enough to damping phenomena performance, is so unfavorable for the understanding of student, and content is withered
The dry enthusiasm for influenceing Students ' Learning, in order to strengthen the understanding of student and increase classroom atmosphere, it is necessary to which simple and energy many-side is drilled
Show the demonstration teaching aid rich in interest of damped motion.
Utility model content
The purpose of this utility model is in view of the shortcomings of the prior art, there is provided double pendulum type electromagnetic damping drives demonstration device.
Double pendulum type electromagnetic damping drives demonstration device, including base and the support being fixed on base, and the support is in rectangular
Body, the support are made up of some poles, and the cradle top centre position is provided with magnetic pendulum, and the magnetic pendulum quantity is no more than 2
Individual, the magnetic pendulum includes the ball bearing being fixedly installed on support, and the head end of hollow aluminum pipe is fixed with the ball bearing,
The end of the hollow aluminum pipe is fixed with iron nail, and strong magnet is adsorbed with the iron nail, is horizontally disposed with the side wall of the support
There are some slide bars, fixed knob is connected between the slide bar and the support, level opens up grooved hole on the slide bar.
In one of the embodiments, opening up arc aluminum plate is removably equiped with the slotted eye.
In one of the embodiments, the width of the arc aluminum plate is the half of the slide bar width.
In one of the embodiments, removably it is equiped with slide plate in the slotted eye.
In one of the embodiments, the slide plate include horizontal bonding size and thickness identical focussing glass,
Aluminium sheet and copper coin, the slide plate are obliquely installed, horizontal by 20-60 ° of angle.
In one of the embodiments, the first transparency glass plate and the second transparent glass are removably equiped with the slotted eye
Glass plate, first transparency glass plate are installed in the surface of second transparency glass plate, on second transparency glass plate
Moveable to be placed with aluminum annulus, the aluminum annulus top and the first clear glass distance between plates are 1-3 millimeters.
In summary, use above technical scheme has following progress：
1st, using hollow aluminum pipe as aluminum steel, the movement locus that can be always ensured that magnetic pendulum is the arc of same vertical plane rule
Shape, the influence factor in experimentation is avoided to influence experiment effect；2nd, one or two magnetic pendulum is set to be beneficial to carry out contrast experiment；
3rd, the slotted eye on the slide bar set can need to install various additional devices according to experiment, realize a variety of demonstrating effects of teaching aid.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the utility model one;
Fig. 2 is the structural representation of another embodiment of the utility model；
Fig. 3 is a kind of structural representation of embodiment of the utility model.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is described in further detail to the utility model.
As shown in Figure 1, Figure 2 and shown in Fig. 3, double pendulum type electromagnetic damping driving demonstration device, including base 1 and be fixed on base 1
Support 2, the support 2 is in cuboid, and the support 2 is made up of some poles, and the crown center position of support 2 is provided with
Magnetic pendulum 3, the quantity of magnetic pendulum 3 are no more than 2, and the magnetic pendulum 3 includes the ball bearing 31 being fixedly installed on support 2, described
It is fixed with the head end of hollow aluminum pipe 32 on ball bearing 31, the end of the hollow aluminum pipe 32 is fixed with iron nail, on the iron nail
Strong magnet 33 is adsorbed with, being horizontally disposed with the side wall of the support 2 there are some slide bars 4, connects between the slide bar 4 and the support 2
Fixed knob 5 is connected to, level opens up grooved hole 41 on the slide bar 4.The ball bearing 31 that hollow aluminum pipe 32 connects, facilitates hollow
The experiment of aluminum pipe 32 swing during stability and uniform force, in experimentation, can be needed to use according to experiment 1 or
2 magnetic pendulums 3.2 magnetic pendulums 3 are pulled open into equal angular in the horizontal direction, after letting go, magnetic pendulum 3 is swung in perpendicular, and amplitude exists
Little with time change, the now swing of magnetic pendulum 3 can be approximately undamped free oscillation in short time.
In one of the embodiments, opening up arc aluminum plate 6 is removably equiped with the slotted eye 41.Installing
Arc aluminum plate 6, then in swing process, magnetic field caused by strong magnet 33 becomes magnetic pendulum 3 through the magnetic flux of arc aluminum plate 6
Change, magnetic damping phenomenon so can be reacted according to the swing situation of magnetic pendulum 3.The design of arc aluminum plate 6 is in order to facilitate strong magnet 33
It is identical with the distance of aluminium sheet in swing process, that is, ensure that the magnetic flux for passing through arc aluminum plate 6 is identical, more can really reflect reality
Test result.
In one of the embodiments, the width of the arc aluminum plate 6 is the half of the width of slide bar 4.Arc aluminum plate 6
Width be the width of slide bar 4 half, be placed on the underface of one of magnetic pendulum 3, there is arc-shaped aluminum such lower section of a magnetic pendulum 3
Plate 6, a lower section of magnetic pendulum 3 do not have arc aluminum plate 6, conveniently compare experiment.Two magnetic pendulums 3 are pulled open into equal angular, there is arc lower section
The magnetic pendulum 3 of shape aluminium sheet 6 is due to the change of magnetic flux, and arc aluminum plate 6 is interior to produce induced-current, according to Lenz's law, arc aluminum plate 6
The magnetic pendulum 3 of top is swung can be by drag effect, and its amplitude reduces with the time within a short period of time, and lower section does not have arc-shaped aluminum
For the amplitude of magnetic pendulum 3 of plate 6 within a short period of time little with time change, two magnetic pendulums 3 form sharp contrast, and reflection magnetic damping shows
As.The height of slide bar 4 is adjusted by fixed knob 5, is tested so as to adjust the height of arc aluminum plate 6, magnetic can be demonstrated successively
Underdamping state, Critical damping state and the overdamping state that pendulum 3 is swung.
In one of the embodiments, removably it is equiped with slide plate 7 in the slotted eye 41.Placed in slide plate 7
Some small aluminium flakes, these small aluminium flakes are placed on the underface of magnetic pendulum 3, and magnetic pendulum 3 drives aluminium flake motion, demonstration when swinging through minimum point
Electromagnetic drive phenomenon.
In one of the embodiments, the slide plate 7 include horizontal bonding size and thickness identical focussing glass,
Aluminium sheet and copper coin, the slide plate 7 is obliquely installed, horizontal by 20-60 ° of angle.Slide plate 7 is formed horizontal by angle
Slope, identical strong magnetic piece is allowed to be slided from sustained height, sliding situation according to strong magnetic piece demonstrates different materials to electromagnetic damping
Influence.
In one of the embodiments, it is saturating that the first transparency glass plate 8 and second is removably equiped with the slotted eye 41
Bright glass plate 9, first transparency glass plate 8 are installed in the surface of second transparency glass plate 9, the second transparent glass
Aluminum annulus 10, distance between the top of aluminum annulus 10 and first transparency glass plate 8 are movably placed with glass plate 9
For 1-3 millimeters.Aluminum annulus 10 is drawn materials for convenience, can use common pop can in life, and pop can is placed on into the
Between one transparency glass plate 8 and the second transparency glass plate 9, when magnetic pendulum 3 is swung, driving pop can rolls on the second transparency glass plate 9
It is dynamic, being capable of vivider lively demonstration electromagnetic drive phenomenon.
A specific embodiment of the present utility model is the foregoing is only, but architectural feature of the present utility model is not limited to
This, for any those skilled in the art in field of the present utility model, the change or modification made are encompassed by this practicality newly
In the scope of the claims of type.
Claims (6)
1. double pendulum type electromagnetic damping drives demonstration device, it is characterised in that：Including base and the support being fixed on base, the branch
Frame is in cuboid, and the support is made up of some poles, and the cradle top centre position is provided with magnetic pendulum, the magnetic pendulum quantity
No more than 2, the magnetic pendulum includes the ball bearing being fixedly installed on support, and hollow aluminum pipe is fixed with the ball bearing
Head end, the end of the hollow aluminum pipe is fixed with iron nail, is adsorbed with strong magnet on the iron nail, water in the side wall of the support
It is flat to be provided with some slide bars, fixed knob is connected between the slide bar and the support, level opens up grooved hole on the slide bar.
2. double pendulum type electromagnetic damping driving demonstration device according to claim 1, it is characterised in that：It is dismountable in the slotted eye
It is equiped with opening up arc aluminum plate.
3. double pendulum type electromagnetic damping driving demonstration device according to claim 2, it is characterised in that：The width of the arc aluminum plate
For the half of the slide bar width.
4. double pendulum type electromagnetic damping driving demonstration device according to claim 1, it is characterised in that：It is dismountable in the slotted eye
It is equiped with slide plate.
5. double pendulum type electromagnetic damping driving demonstration device according to claim 4, it is characterised in that：The slide plate includes level
Size and thickness identical focussing glass, the aluminium sheet and copper coin of bonding, the slide plate is obliquely installed, horizontal by 20-60 °
Angle.
6. double pendulum type electromagnetic damping driving demonstration device according to claim 1, it is characterised in that：It is dismountable in the slotted eye
The first transparency glass plate and the second transparency glass plate are equiped with, first transparency glass plate is installed in second clear glass
The surface of plate, is movably placed with aluminum annulus on second transparency glass plate, the aluminum annulus top with it is described
First clear glass distance between plates is 1-3 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720386215.0U CN206711471U (en) | 2017-04-13 | 2017-04-13 | Double pendulum type electromagnetic damping drives demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720386215.0U CN206711471U (en) | 2017-04-13 | 2017-04-13 | Double pendulum type electromagnetic damping drives demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206711471U true CN206711471U (en) | 2017-12-05 |
Family
ID=60455637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720386215.0U Expired - Fee Related CN206711471U (en) | 2017-04-13 | 2017-04-13 | Double pendulum type electromagnetic damping drives demonstration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206711471U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113436513A (en) * | 2021-07-20 | 2021-09-24 | 吴雪利 | Physical experiment demonstration equipment for middle school education |
-
2017
- 2017-04-13 CN CN201720386215.0U patent/CN206711471U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113436513A (en) * | 2021-07-20 | 2021-09-24 | 吴雪利 | Physical experiment demonstration equipment for middle school education |
| CN113436513B (en) * | 2021-07-20 | 2022-02-11 | 吴雪利 | Physical experiment demonstration equipment for middle school education |
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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 |
Granted publication date: 20171205 Termination date: 20180413 |
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| CF01 | Termination of patent right due to non-payment of annual fee |