CN208873390U - Prove the apparatus for demonstrating of earth rotation - Google Patents
Prove the apparatus for demonstrating of earth rotation Download PDFInfo
- Publication number
- CN208873390U CN208873390U CN201820492185.6U CN201820492185U CN208873390U CN 208873390 U CN208873390 U CN 208873390U CN 201820492185 U CN201820492185 U CN 201820492185U CN 208873390 U CN208873390 U CN 208873390U
- Authority
- CN
- China
- Prior art keywords
- vacuum glass
- glass column
- pendulum
- demonstrating
- earth rotation
- 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
Links
Abstract
The utility model provides a kind of apparatus for demonstrating for proving earth rotation, is related to Foucault pendulum demonstrating instrument technical field.The apparatus for demonstrating includes: vacuum glass column, and vacuum glass column is hollow columnar structures, and vacuum glass column includes first end and second end, and the inner peripheral surface of second end is provided with the first graduation mark, and the inner face of second end is provided with the second graduation mark；Universal caster, Universal caster are set to the inner face of the first end of vacuum glass column；Cycloid, cycloid are located in vacuum glass column, and one end of cycloid is connect with Universal caster；Pendulum, pendulum are connected to the other end of cycloid and close to the second ends of vacuum glass column；And magnet, magnet are located at outside vacuum glass column, and magnet is for attracting pendulum.The apparatus for demonstrating it is structurally reasonable, realize Foucault pendulum miniaturization, it is easily operated, be conducive to popularize.
Description
Technical field
The utility model relates to Foucault pendulum demonstrating instrument technical fields, prove drilling for earth rotation in particular to a kind of
Showing device.
Background technique
Foucault pendulum is a kind of device for being able to verify that earth rotation, the experiment first by French physician Foucault demonstrate at
Function.The device is substantially a single pendulum, uses 67 meters of pendulum length, 28 kilograms in pendulum.In swing process, swinging plane is constantly sent out
Changing gently changes clockwise, according to the variation in pendulum face, the earth can be proved in rotation.
This very huge pendulum length and very heavy pendulum, it is therefore an objective to which extend as far as possible swing is held time, and is made
Swinging plane is not influenced by earth rotation.Foucault pendulum needs a swing arm as long as possible, and (Foucault had used one 67 meters at that time
Long wire hanger pendulum), extend swing period, to reduce the movement velocity of pendulum, is moved in air with reducing it
Resistance.In addition pendulum is small as far as possible again and again, so metal pendulum (the pendulum weight of Foucault at that time for selecting density big
28 kilograms).
Since this Foucault pendulum is excessively huge, some large-scale astronomical shops or science and technology center, general place can only be stored in
Storage can not be installed, so being difficult to popularize.
Therefore miniaturization Foucault pendulum is that people want to solve the problems, such as always.But if being made too small, the gravitational potential of pendulum
Can be smaller, due to the influence of air drag and other frictional force, duration of oscillation is shorter, cannot reach expected display effect.
There is small-sized replacement device at present, the principle of simulation Foucault pendulum is rotated by turntable, or add power compensation, otherwise cannot grown
Time flutter.This processing, not only structure is complicated, but also has violated the principle of Foucault pendulum proof earth rotation, only realizes
Simulation and analogy, are not Foucault pendulums truly.
Utility model content
The purpose of this utility model is to provide a kind of apparatus for demonstrating for proving earth rotation, the structure letters of the apparatus for demonstrating
It is single, realize that Foucault pendulum miniaturization, its is easy to operate, can satisfy in various demonstrations or teaching needs.
The embodiments of the present invention are achieved in that
A kind of apparatus for demonstrating proving earth rotation, comprising:
Vacuum glass column, the vacuum glass column are hollow columnar structures, and the vacuum glass column includes first end and the
Two ends, the inner peripheral surface of the second end are provided with the first graduation mark, and the inner face of the second end is provided with the second graduation mark；
Universal caster, the Universal caster are set to the inner face of the first end of the vacuum glass column；
Cycloid, the cycloid are located in the vacuum glass column, and one end of the cycloid is connect with the Universal caster；
Pendulum, the pendulum are connected to the other end of the cycloid and close to the second ends of the vacuum glass column；With
And
Magnet, the magnet are located at outside the vacuum glass column, and the magnet is for attracting the pendulum.
In addition, can also be had as follows according to the apparatus for demonstrating provided by the embodiment of the utility model for proving earth rotation
Additional technical characteristic:
In the utility model optional embodiment,
The vacuum glass column is cylindrical-shaped structure, the rounded inner circumferential for being distributed in the second end of the first graduation mark
Face, the rounded inner face for being distributed in the second end of the second graduation mark.
In the utility model optional embodiment,
First graduation mark and second graduation mark include 360 scales, and two adjacent quarters
1 ° of degree interval.
In the utility model optional embodiment,
The side close to the second end of the pendulum is provided with sharp portion, and the sharp portion is along the vacuum glass column
Axis extend.
In the utility model optional embodiment,
The pendulum is metal ball, and the radius of the metal ball is 15mm-25mm.
In the utility model optional embodiment,
The outer layer of the metal ball is made of steel material, and the internal layer of the metal ball is made of lead material, the gold
The mass range for belonging to ball is 350-450g.
In the utility model optional embodiment,
The cycloid is made of steel wire.
In the utility model optional embodiment,
The length range of the cycloid is 1-2m.
In the utility model optional embodiment,
A height of 1.2-2.4m of the vacuum glass column, the radius of the vacuum glass column are 0.2-0.4m.
In the utility model optional embodiment,
The apparatus for demonstrating for proving earth rotation further include:
Disk, the disk are set to the inner face of the second end of the vacuum glass column and mutually fit with the second end
Match, second graduation mark is set on the disk.
The beneficial effect of the utility model embodiment is: the apparatus for demonstrating it is simple and reasonable for structure, by using vacuum glass
Glass column overcomes the influence of air drag, and the apparatus for demonstrating is pretty good without any power, it can be achieved that long-time Baidu, realizes
Foucault pendulum miniaturization, it is easily operated, can satisfy in various demonstrations or teaching needs, be conducive to promotion and popularization.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of the apparatus for demonstrating provided by the embodiment of the utility model for proving earth rotation；
Fig. 2 is the structure of the vacuum glass column in the apparatus for demonstrating provided by the embodiment of the utility model for proving earth rotation
Schematic diagram；
Fig. 3 is the structural schematic diagram at another visual angle of Fig. 2.
Icon: 100- vacuum glass column；101- first end；102- second end；110- Universal caster；120- cycloid；130-
Pendulum；131- sharp portion；The first graduation mark of 141-；The second graduation mark of 142-；150- magnet.
Specific embodiment
Inventor has found that the maximum resistance of Foucault pendulum comes from air under study for action, and air moves in pendulum, and pendulum moves
It can back and forth be converted with potential energy, for the drag effect of air, the energy of pendulum is gradually used up, it stops swinging quickly, and this implementation
In example, by using vacuum glass column, the biggest factor for influencing duration of oscillation is overcome.
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that term " on ", "vertical", "horizontal", "inner", "outside" etc.
The orientation or positional relationship of instruction be based on the orientation or positional relationship shown in the drawings or the utility model product use when
The orientation or positional relationship usually put, is merely for convenience of describing the present invention and simplifying the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
The limitation of the utility model.In addition, term " first ", " second " etc. are only used for distinguishing description, and it should not be understood as instruction or dark
Show relative importance.
In addition, the terms such as term "horizontal", "vertical" are not offered as requiring component abswolute level or pendency, but can be slightly
Low dip.It is not to indicate that the structure has been had to if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical"
It is complete horizontal, but can be slightly tilted.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in utility model.
In the present invention unless specifically defined or limited otherwise, fisrt feature is on or below second feature
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature is on second feature, top and above include fisrt feature the
Right above two features and oblique upper, or first feature horizontal height is merely representative of higher than second feature.Fisrt feature is in the second spy
Under sign, lower section and fisrt feature included below be directly below and diagonally below the second feature, or be merely representative of fisrt feature level
Height is less than second feature.
- Fig. 3 refering to fig. 1, the utility model embodiment provide a kind of apparatus for demonstrating for proving earth rotation, the proof earth
The apparatus for demonstrating of rotation includes vacuum glass column 100, Universal caster 110, cycloid 120, pendulum 130 and magnet 150.
Wherein, vacuum glass column 100 is cylindrical-shaped structure.
In order to more accurately demonstrate the rotation of the earth, in the present embodiment, the altitude range of vacuum glass column 100 with
It is advisable between 1.2m-2.4m, and the radius of vacuum glass column 100 between 0.2m-0.4m to be advisable.
Refering to fig. 1, further, since vacuum glass column 100 is cylindrical, axially, vacuum glass column 100 includes
First end 101 and second end 102, first end 101 and second end 102 are the axial both ends of vacuum glass column 100.
The inner surface of first end 101 is arranged in Universal caster 110, and Universal caster 110 is located at the axis of vacuum glass column 100
On line.
In the present embodiment, cycloid 120 is arranged in vacuum glass column 100, and one end of cycloid 120 and Universal caster 110
Connection.
Wherein, cycloid 120 can be made by finer wire, and length range is advisable in 1-2m, specific length and vacuum glass
The length of column 100 matches.
In the present embodiment, pendulum 130 is connected to the other end of cycloid 120, and pendulum 130 is close to vacuum glass column 100
In second end 102.
Wherein, pendulum 130 is metal ball, and outer layer is made of steel material, and its internal layer is made of lead material, this
Sample, so that the metal ball is in the case where same volume, quality is bigger.
It should be noted that the mass range of the metal ball is between 350-450g, and the radius of the metal ball exists
Between 15mm-25mm.
Refering to fig. 1, in the present embodiment, the side of the close second end 102 of pendulum 130 is provided with sharp portion 131.
The sharp portion 131 extends along the axis of vacuum glass column 100, wherein sharp portion 131 is conducive to be directed at the second scale
The numerical value of line 142, consequently facilitating accurately reading the specific value of the second graduation mark 142.
Refering to fig. 1 and Fig. 2, in addition, the inner peripheral surface in the second end 102 of vacuum glass column 100 is provided with the first graduation mark
141。
Refering to fig. 1 and Fig. 2, wherein the rounded inner peripheral surface for being distributed in second end 102 of the first graduation mark 141, and the first quarter
Spending line 141 includes 360 scales, is spaced 1 ° between two adjacent scales.
Refering to fig. 1 and Fig. 3, meanwhile, the inner face of the second end 102 of vacuum glass column 100 is provided with the second graduation mark
142。
Refering to fig. 1 and Fig. 3, wherein the rounded inner face for being distributed in second end 102 of the second graduation mark 142, and the second quarter
Spending line 142 includes 360 scales, is spaced 1 ° between two adjacent scales.
Refering to fig. 1, in the present embodiment, the outside of vacuum glass column 100 is arranged in magnet 150.
The shape of magnet 150 is indefinite, can have any shape, it is generally the case that magnet 150 and vacuum glass column 100
It is spaced apart, when needing pendulum 130 close to the inner wall of vacuum glass column 100, just make magnet 150 close to vacuum glass
The outer wall of column 100, so that magnet 150 be made to attract pendulum 130.
In the present embodiment, the apparatus for demonstrating of the proof earth rotation further includes disk (not shown).
Disk is arranged in the inner face of the second end 102 of vacuum glass column 100 and is adapted with second end 102, herein
Adaptation refers to that the outer diameter of disk is suitable with the internal diameter of vacuum glass column 100, and the second above-mentioned graduation mark 142 is arranged in circle
On disk.
The thickness of disk should not be too large, and main function is to facilitate the printing of the second graduation mark 142 on it.
When the apparatus for demonstrating of the proof earth rotation is not used, pendulum 130 hangs down vertically, remains static.
When needing to demonstrate, the inside of vacuum glass column 100 is evacuated, and vacuum glass column 100 is slightly tilted 5 °,
So that inner wall of the pendulum 130 close to vacuum glass column 100, then using magnet 150 close to the outer wall of vacuum glass column 100, pendulum
Hammer 130 is attracted under magneticaction and abuts the inner wall of vacuum glass column 100, and vacuum glass column 100 is resetted, vacuum glass is made
Glass column 100 is in a vertical state, and at this moment, pendulum 130 will leave original equilbrium position, abuts against the interior of vacuum glass column 100
On wall.
Then magnet 150 is withdrawn, under the collective effect of 120 pulling force of gravity and cycloid, pendulum 130 starts to swing, pendulum
Substantially 2S of dynamic period.
In 130 swing process of pendulum, the initial position scale of swinging plane is recorded, with swinging back and forth for pendulum 130,
Original initial position will be gradually deviated from by balancing face, that is, swaying direction will gradually change, wherein the Northern Hemisphere is according to clockwise
Direction deflection, it is related with geographic latitude to balance deflecting facet angular speed, specially For local latitude, angular speed
Unit is " degree/when ", 30 ° of north latitude of one, place, 7.5 ° of hour deflection.In arctic point, a hour will deflect 15 °, as a result,
By the deflection, can prove the earth in rotation, correspondingly, specific deflection angle can by the first scale and the second scale into
Row feedback.
To sum up, the apparatus for demonstrating is simple and reasonable for structure, by using vacuum glass column 100, overcomes air drag
Influence, realize Foucault pendulum miniaturization, it is easily operated, be conducive to popularize；Meanwhile the apparatus for demonstrating is not necessarily to any power
Compensation can satisfy, it can be achieved that swing in (8-9 hours) for a long time in various demonstrations or teaching needs.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of apparatus for demonstrating for proving earth rotation characterized by comprising
Vacuum glass column, the vacuum glass column are hollow columnar structures, and the vacuum glass column includes first end and second end,
The inner peripheral surface of the second end is provided with the first graduation mark, and the inner face of the second end is provided with the second graduation mark；
Universal caster, the Universal caster are set to the inner face of the first end of the vacuum glass column；
Cycloid, the cycloid are located in the vacuum glass column, and one end of the cycloid is connect with the Universal caster；
Pendulum, the pendulum are connected to the other end of the cycloid and close to the second ends of the vacuum glass column；And
Magnet, the magnet are located at outside the vacuum glass column, and the magnet is for attracting the pendulum.
2. the apparatus for demonstrating according to claim 1 for proving earth rotation, which is characterized in that the vacuum glass column is circle
Column structure, the rounded inner peripheral surface for being distributed in the second end of the first graduation mark, rounded point of second graduation mark
It is distributed in the inner face of the second end.
3. the apparatus for demonstrating according to claim 2 for proving earth rotation, which is characterized in that first graduation mark and institute
State the second graduation mark and include 360 scales, and two adjacent 1 ° of scale intervals.
4. the apparatus for demonstrating according to claim 2 for proving earth rotation, which is characterized in that the pendulum close to described
The side of second end is provided with sharp portion, and the sharp portion extends along the axis of the vacuum glass column.
5. the apparatus for demonstrating according to claim 1 for proving earth rotation, which is characterized in that the pendulum is metal ball,
The radius of the metal ball is 15mm-25mm.
6. it is according to claim 5 prove earth rotation apparatus for demonstrating, which is characterized in that the outer layer of the metal ball by
Steel material is made, and the internal layer of the metal ball is made of lead material, and the mass range of the metal ball is 350-450g.
7. the apparatus for demonstrating according to claim 1 for proving earth rotation, which is characterized in that the cycloid is by steel wire system
At.
8. the apparatus for demonstrating according to claim 1 for proving earth rotation, which is characterized in that the length range of the cycloid
For 1-2m.
9. the apparatus for demonstrating according to claim 1 for proving earth rotation, which is characterized in that the height of the vacuum glass column
For 1.2-2.4m, the radius of the vacuum glass column is 0.2-0.4m.
10. the apparatus for demonstrating according to claim 1 for proving earth rotation, which is characterized in that the proof earth rotation
Apparatus for demonstrating further include:
Disk, the disk are set to the inner face of the second end of the vacuum glass column and are adapted with the second end, institute
The second graduation mark is stated to be set on the disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820492185.6U CN208873390U (en) | 2018-04-08 | 2018-04-08 | Prove the apparatus for demonstrating of earth rotation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820492185.6U CN208873390U (en) | 2018-04-08 | 2018-04-08 | Prove the apparatus for demonstrating of earth rotation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208873390U true CN208873390U (en) | 2019-05-17 |
Family
ID=66461111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820492185.6U Expired - Fee Related CN208873390U (en) | 2018-04-08 | 2018-04-08 | Prove the apparatus for demonstrating of earth rotation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208873390U (en) |
-
2018
- 2018-04-08 CN CN201820492185.6U patent/CN208873390U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5365671A (en) | Inclinometer | |
| Mohammed et al. | Monolithic multi degree of freedom (MDoF) capacitive MEMS accelerometers | |
| Luh Sukariasih et al. | Studies the use of smartphone sensor for physics learning | |
| US6422746B1 (en) | Method and device for a self orienting floating apparatus | |
| CN109596114B (en) | Building survey straightness detection instrument that hangs down | |
| Monteiro et al. | Resource letter MDS-1: Mobile devices and sensors for physics teaching | |
| Cui et al. | Design, fabrication and levitation experiments of a micromachined electrostatically suspended six-axis accelerometer | |
| Łuczak et al. | Electric-contact tilt sensors: A review | |
| CN208873390U (en) | Prove the apparatus for demonstrating of earth rotation | |
| CN106500656B (en) | Gravity center type structural plane attitude measuring instrument | |
| CN103808461A (en) | Device for measuring rotational inertia of rigid body through magnetic suspension rotating platform | |
| US5233759A (en) | Compensating magnetic compass | |
| CN102564409A (en) | Rotor type micromechanical gyroscope with electromagnetically-driven framework structure | |
| Searle | Experimental physics | |
| Chen et al. | A rotational gyroscope with a water-film bearing based on magnetic self-restoring effect | |
| US1306882A (en) | clarke | |
| JPH06507707A (en) | altitude sensor | |
| US1932412A (en) | Directional instrument | |
| CN206209130U (en) | Relative gravity sensor based on space cross flexible support structure | |
| US2215622A (en) | Magnetic compass | |
| Guo et al. | Design and Fabrication of a Novel Wheel-Ring Triaxial Gyroscope | |
| Haine et al. | Analogies of ocean/atmosphere rotating fluid dynamics with gyroscopes: Teaching opportunities | |
| CN206362331U (en) | Structural plane strike-dip survey instrument | |
| US3023512A (en) | Anti-friction mountings | |
| CN104237063A (en) | Method for vibration measurement of air specific heat ratio by piston in sealing cylinder |
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: 20190517 |