CN207852158U - Centripetal force test device in physics teaching experiment - Google Patents
Centripetal force test device in physics teaching experiment Download PDFInfo
- Publication number
- CN207852158U CN207852158U CN201721475681.2U CN201721475681U CN207852158U CN 207852158 U CN207852158 U CN 207852158U CN 201721475681 U CN201721475681 U CN 201721475681U CN 207852158 U CN207852158 U CN 207852158U
- Authority
- CN
- China
- Prior art keywords
- centripetal force
- glass tube
- physics teaching
- teaching experiment
- test device
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- 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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Abstract
Centripetal force test device in physics teaching experiment, it belongs to physics teaching experiment field.The utility model includes engine base, it is installed with motor on the engine base, the motor top is equipped with motor shaft, the motor shaft top is connected and fixed bearing, the hold-down support both ends are connected separately with the first glass tube, second glass tube, first glass tube is provided with spring from left end to right end, positioning sliding block, push plate, first counterweight bead, second glass tube is provided with cushion block from right to left side, test bead, it is fixedly connected with locating rod in the middle part of the motor shaft, the end of the locating rod is equipped with positioning light barrier, it is provided with photoelectric door below the positioning light barrier.The utility model can accurately record quality m related with centripetal force, angular velocity omega, the radius R under dynamic, observed and measured in the quiescent state, realize the qualitative demonstration of centripetal force and the quantitative study of centripetal force.
Description
Technical field
The utility model belongs to physics teaching experiment field, and in particular to the centripetal force test in a kind of physics teaching experiment
Device.
Background technology
Centripetal force is since it generates the acceleration in the direction center of circle, so it is referred to as centripetal force.Centripetal force is not to have really
The certain type of power of qualitative matter.On the contrary, the power of any property all can serve as centripetal force.Actually it can be certain property
The component of one power or some power can also be that several power of different nature are directed toward the bonding force in the center of circle along radius.It does non-even
The object of fast circular motion, directional velocity and size become, it is other than having the acceleration for being directed toward the center of circle, also tangentially
Acceleration, so resultant acceleration is not directed to the center of circle, suffered bonding force is also not directed to the center of circle.For example, bead is along perpendicular
Smooth circular orbit movement.The instrumentation of existing research circular motion is complicated, is relied primarily on manually in experimentation
Rotation generates circular motion, and whether moving object, which reaches designated position, needs artificial judgment, there is certain difficulty in operation.
Invention content
The purpose of this utility model is to provide the centripetal force test device in a kind of physics teaching experiment.
The utility model is achieved through the following technical solutions：
A kind of centripetal force test device in physics teaching experiment, the centripetal force test dress in the physics teaching experiment
It sets including engine base, motor is installed on the engine base, the motor top is equipped with motor shaft, the motor shaft
Top is connected and fixed bearing, and the hold-down support both ends are connected separately with the first glass tube, the second glass tube, and described first
Glass tube is provided with spring, positioning sliding block, push plate, the first counterweight bead, second glass tube from left end to right end
Inside is provided with cushion block, test bead from right to left side, is fixedly connected with locating rod in the middle part of the motor shaft, described determines
The end of position bar is equipped with positioning light barrier, and photoelectric door is provided with below the positioning light barrier.
Centripetal force test device in physics teaching experiment described in the utility model, the motor front are equipped with control
Panel processed is provided with display screen on the control panel.
Centripetal force test device in physics teaching experiment described in the utility model, the engine base bottom end are equipped with ten thousand
To wheel.
Centripetal force test device in physics teaching experiment described in the utility model, first glass tube outside are set
It is equipped with the first scale, the second scale is provided on the outside of second glass tube.
Centripetal force test device in physics teaching experiment described in the utility model, engine base middle part are equipped with pumping
Drawer.
Centripetal force test device in physics teaching experiment described in the utility model, the model of the motor are
60CST-M00630。
Centripetal force test device in physics teaching experiment described in the utility model, in order to study centripetal force F, quality m,
Relationship between angular velocity omega, radius R changes the rotational angular velocity ω of motor, both photoelectric door, light barrier using control panel
Coordinate the swing circle of test motor and then obtain ω, the size F of centripetal force is that the first counterweight is small when being rotated by motor
Club is subject to centrifugal forces, to make push plate slide to the left, and then positioning sliding block is driven to be moved to the left, passes through the shifting of sliding block
The dynamic deformation quantity that can measure spring on the scale, it is fixed by Hooke by known coefficient of elasticity when selecting spring
Rule can calculate the size of centripetal force.
Centripetal force test device in physics teaching experiment described in the utility model, test bead choose respectively copper, iron,
The different still identical beads of size of three kinds of materials of aluminium, to change the quality of test bead, the moving radius of bead passes through change
The height of cushion block is realized.When needing to change the quality or moving radius of bead, cushion block will be filled and test the glass tube of bead
It removes, changes the bead or cushion block of needs, the rotational angular velocity ω for changing motor using control panel is being carved in a determination value
Write down the position of push plate on degree ruler, open power supply, it is to be exercised it is in stable condition after, write down the position of push plate on the scale again,
The difference read twice is the deformation quantity of spring, and then calculates the centripetal force size of test bead.
Centripetal force test device in physics teaching experiment described in the utility model, can be by under dynamic and centripetal force
Related quality m, angular velocity omega, radius R are accurately recorded, and are observed and measured in the quiescent state, realize centripetal force
The quantitative study of qualitative demonstration and centripetal force.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Specific implementation mode
Specific implementation mode one：
A kind of centripetal force test device in physics teaching experiment, the centripetal force test dress in the physics teaching experiment
It sets including engine base 1, is installed with motor 2 on the engine base, the motor top is equipped with motor shaft 5, the electricity
Arbor top is connected and fixed bearing 7, and the hold-down support both ends are connected separately with the first glass tube 8, the second glass tube 13, institute
The first glass tube stated is provided with spring 12, positioning sliding block 10, push plate 11, the first counterweight bead 9, institute from left end to right end
The second glass tube stated is provided with cushion block 16, test bead 15 from right to left side, and motor shaft middle part is fixed to be connected
It is connected to locating rod 6, the end of the locating rod is equipped with positioning light barrier 4, light is provided with below the positioning light barrier
Electric switch 3.
Specific implementation mode two：
Centripetal force test device in physics teaching experiment according to specific implementation mode one, motor front
Control panel 20 is installed, display screen 21 is provided on the control panel.
Specific implementation mode three：
Centripetal force test device in physics teaching experiment according to specific implementation mode one, the engine base bottom end
Universal wheel 18 is installed.
Specific implementation mode four：
Centripetal force test device in physics teaching experiment according to specific implementation mode one, first glass
It is provided with the first scale 14 on the outside of pipe, the second scale 17 is provided on the outside of second glass tube.
Specific implementation mode five：
Centripetal force test device in physics teaching experiment according to specific implementation mode one, engine base middle part
Drawer 19 is installed.
Claims (5)
1. the centripetal force test device in a kind of physics teaching experiment, it is characterised in that：In the physics teaching experiment to
Mental and physical efforts test device includes engine base (1), and motor (2), the motor (2) top peace are installed on the engine base (1)
Equipped with motor shaft (5), the motor shaft (5) top is connected and fixed bearing (7), and the hold-down support (7) both ends connect respectively
It is connected to the first glass tube (8), the second glass tube (13), first glass tube (8) is internal to be provided with bullet from left end to right end
Spring (12), positioning sliding block (10), push plate (11), the first counterweight bead (9), second glass tube (13) it is internal from right end to
Left end is provided with cushion block (16), test bead (15), and locating rod (6) is fixedly connected in the middle part of the motor shaft (5), described
The end of locating rod (6) is equipped with positioning light barrier (4), and photoelectric door (3) is provided with below the positioning light barrier (4).
2. the centripetal force test device in physics teaching experiment according to claim 1, it is characterised in that：The motor
(2) front is equipped with control panel (20), and display screen (21) is provided on the control panel (20).
3. the centripetal force test device in physics teaching experiment according to claim 1, it is characterised in that：The engine base
(1) bottom end is equipped with universal wheel (18).
4. the centripetal force test device in physics teaching experiment according to claim 1, it is characterised in that：Described first
It is provided with the first scale (14) on the outside of glass tube (8), the second scale (17) is provided on the outside of second glass tube (13).
5. the centripetal force test device in physics teaching experiment according to claim 1, it is characterised in that：The engine base
(1) middle part is equipped with drawer (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721475681.2U CN207852158U (en) | 2017-11-08 | 2017-11-08 | Centripetal force test device in physics teaching experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721475681.2U CN207852158U (en) | 2017-11-08 | 2017-11-08 | Centripetal force test device in physics teaching experiment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207852158U true CN207852158U (en) | 2018-09-11 |
Family
ID=63422510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721475681.2U Expired - Fee Related CN207852158U (en) | 2017-11-08 | 2017-11-08 | Centripetal force test device in physics teaching experiment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207852158U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113205737A (en) * | 2021-04-06 | 2021-08-03 | 重庆城市职业学院 | Rotation acceleration simulation test device and method based on digital modeling |
| CN113380121A (en) * | 2021-06-03 | 2021-09-10 | 海南立字知识产权运营有限公司 | Centripetal force experimental apparatus |
-
2017
- 2017-11-08 CN CN201721475681.2U patent/CN207852158U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113205737A (en) * | 2021-04-06 | 2021-08-03 | 重庆城市职业学院 | Rotation acceleration simulation test device and method based on digital modeling |
| CN113205737B (en) * | 2021-04-06 | 2023-02-24 | 重庆城市职业学院 | Rotation acceleration simulation test device and method based on digital modeling |
| CN113380121A (en) * | 2021-06-03 | 2021-09-10 | 海南立字知识产权运营有限公司 | Centripetal force experimental apparatus |
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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: 20180911 Termination date: 20191108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |