CN206097615U

CN206097615U - Foucault pendulum demonstration appearance

Info

Publication number: CN206097615U
Application number: CN201620280138.6U
Authority: CN
Inventors: 段沐辰
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-04-05
Filing date: 2016-04-05
Publication date: 2017-04-12
Anticipated expiration: 2026-04-05

Abstract

The utility model provides a foucault pendulum demonstration appearance, including the chassis with set up the carousel on the chassis, the pivot of the motor of the chassis bottom central authorities shaft hole through chassis central authorities is connected with the pivot groove of carousel central authorities, is erectting position two symmetrical straight -bars on the carousel, the horizontal pole connection is passed through on the top of two straight -bars, the intermediate junction of horizontal pole has the plumb -line, the bottom mounting of plumb -line has a laser pen. The utility model discloses can demonstrate the movement track of pendulum on less foucault pendulum demonstration appearance, simple and convenient, the practicality is strong, the facilitate promotion directly perceivedly.

Description

A kind of Foucault pendulum demonstrating instrument

Technical field

The utility model is related to Foucault pendulum demonstrating instrument field, particularly a kind of Foucault pendulum that can clearly show movement locus Demonstrator.

Background technology

Foucault pendulum demonstrating instrument refers to that motion is put in inertial space fixed pan only by gravitation and messenger wire tension force effect, The pendulum of Foucault pendulum demonstrating instrument can change swaying direction in motion with earth rotation, be that French physician Foucault is invented A kind of physical apparatus for proving earth rotation.But in prior art, on the one hand measure the Foucault of earth rotation itself Pendulum demonstration instrument generally requires larger scale, it is difficult to for the Physical Experiment of general school；On the other hand, in order to guarantee from By swinging, pendulum and bottom surface do not contact, so the change rule of the movement locus and swaying direction to Foucault pendulum demonstrating instrument hammer Rule is often difficult to effectively observe and count.

Utility model content

The utility model provides a kind of Foucault pendulum demonstrating instrument, especially a kind of Foucault pendulum that can clearly show movement locus Demonstrator.

The utility model solves the technical scheme that its technical problem adopted：A kind of Foucault pendulum demonstrating instrument, including chassis With the rotating disk being arranged on the chassis, there is equally distributed chassis scale on the chassis, it is upper on the rotating disk to have The rotating disk scale of even distribution, the bottom margin on the chassis is distributed with multiple legs.The motor in tray bottom central authorities turns Axle is connected by the axis hole in chassis central authorities with the rotary axis groove in rotating disk bottom surface central authorities.On end position on the rotating disk Two symmetrical straight-bars, the top of two straight-bars is connected by cross bar, and the centre of the cross bar is connected with messenger wire, described The bottom of messenger wire is fixed with a laser pen, the laser pen in inactive state nib straight down, the laser alignment for being sent Impinge upon the middle position of the rotating disk.

The beneficial effects of the utility model are：The fortune of pendulum can be intuitively shown on less Foucault pendulum demonstrating instrument Dynamic rail mark, it is simple and convenient, it is practical, it is easy to promote.

Description of the drawings

Fig. 1 is a kind of front view of Foucault pendulum demonstrating instrument；

Fig. 2 is a kind of tray bottom view of Foucault pendulum demonstrating instrument；

Fig. 3 is a kind of rotating disk bottom view of Foucault pendulum demonstrating instrument；

Fig. 4 is a kind of chassis schematic diagram of Foucault pendulum demonstrating instrument；

Fig. 5 is that a kind of laser pen of Foucault pendulum demonstrating instrument arranges schematic diagram.

In figure：Chassis 1, rotating disk 2, straight-bar 3, cross bar 4, messenger wire 5, laser pen 6, leg 11, chassis scale 12, motor 13, Rotating shaft 14, rotating disk scale 21, rotary axis groove 22.

Specific embodiment

To make the technical solution of the utility model become more apparent, below in conjunction with the accompanying drawings specific embodiment is new to this practicality Type is described further.

As shown in figure 1, the Foucault pendulum demonstrating instrument in the utility model includes chassis 1 and is arranged on the One On The Chassis rotating disk 2, The fixed placement of chassis 1, represents the sun, and rotating disk 2 can be rotated on chassis 1, represent the earth.On end position phase on rotating disk 2 Two symmetrical straight-bars 3, the top of two straight-bars 3 is connected by cross bar 4, and the centre of cross bar 4 is connected with messenger wire 5, the bottom of messenger wire 5 End is fixed with a laser pen 6 as pendulum.

As in Figure 2-4, the bottom margin on chassis 1 is distributed multiple legs 11, and bottom center is provided with motor 13, motor 13 Rotating shaft 14 is reached on the surface on chassis 1 through the axis hole in the central authorities of chassis 1；The bottom surface central authorities on chassis 2 are provided with rotary axis groove 22, rotating shaft 14 are connected with rotary axis groove 22, and thus, chassis 2 can rotate with the rotation of motor 13.

As illustrated in figures 4-5, there is equally distributed chassis scale 12 on chassis 1, also there is equally distributed turn on rotating disk 2 Dial scale 21, in inactive state nib straight down, the laser alignment for being sent impinges upon the middle position of rotating disk 2 to laser pen 6.

When being tested, first allow the laser pen 6 as pendulum to be swung, due to Foucault pendulum demonstrating instrument it is overall less, Now laser pen 6 does plane rocking, and due to the presence of inertia, its swinging plane is constant, and the light for sending is impinged upon on rotating disk 2 Track is straight line.Then start motor 13, drive rotating disk 2 to carry out steady circular's rotation, simulate earth rotation, now laser Relative angle change can be produced between the swinging plane and rotating disk 2 of pen 6.The motion rail of the laser that observation laser pen 6 is sent Mark, it becomes possible to intuitively realize the change that the oscillating motion of laser pen 6 is brought with the rotation of rotating disk 2.The One On The Chassis chassis Rotating disk scale 21 on scale 12 and rotating disk 2 can aid in observation laser movement locus, can also be recorded for It is concrete to calculate.

Specific embodiment of the present utility model is the foregoing is only, but protection domain of the present utility model is not limited to This, any those familiar with the art in the technical scope that the utility model is disclosed, can readily occur in change or Replace, all should cover within protection domain of the present utility model.

Claims

1. a kind of Foucault pendulum demonstrating instrument, including chassis（1）Be arranged on the chassis（1）On rotating disk（2）, it is characterised in that： The chassis（1）Bottom center is provided with motor（13）, the rotating disk（2）Bottom surface central authorities are provided with rotary axis groove（22）, the motor （13）Rotating shaft（14）By the chassis（1）The axis hole and the rotary axis groove in central authorities（22）It is connected, the rotating disk（2）It is upper perpendicular Found two symmetrical straight-bars of position（3）, two straight-bars（3）Top pass through cross bar（4）Connection, the cross bar（4） Centre be connected with messenger wire（5）, the messenger wire（5）Bottom be fixed with a laser pen（6）.

2. a kind of Foucault pendulum demonstrating instrument according to claim 1, it is characterised in that：The chassis（1）It is upper that there is uniform point The chassis scale of cloth（12）.

3. a kind of Foucault pendulum demonstrating instrument according to claim 1, it is characterised in that：The rotating disk（2）It is upper that there is uniform point The rotating disk scale of cloth（21）.

4. a kind of Foucault pendulum demonstrating instrument according to one of claims 1 to 3, it is characterised in that：The laser pen（6） Straight down, the laser alignment for being sent impinges upon the middle position of the rotating disk to nib under static state.

5. a kind of Foucault pendulum demonstrating instrument according to claim 4, it is characterised in that：The chassis（1）Bottom sides fate It is furnished with multiple legs（11）.