CN202434099U - Single pendulum vibration demonstration device - Google Patents
Single pendulum vibration demonstration device Download PDFInfo
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- CN202434099U CN202434099U CN201120555120XU CN201120555120U CN202434099U CN 202434099 U CN202434099 U CN 202434099U CN 201120555120X U CN201120555120X U CN 201120555120XU CN 201120555120 U CN201120555120 U CN 201120555120U CN 202434099 U CN202434099 U CN 202434099U
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- cycloid
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- pendulum
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Abstract
The utility model discloses a single pendulum vibration demonstration device which comprises a magnetic back plate. A support is arranged on the magnetic back plate and is provided with a cycloid with adjustable length, and a large pendulum ball and a small pendulum ball are respectively hung at two ends of the cycloid. The support comprises an adsorption block, a strong magnet is arranged on the back face of the adsorption block and enables the adsorption block to cling to the magnetic back plate, a support plate is arranged at the upper end of the adsorption block, and the cycloid is arranged on the support plate. A rubber plug and a pair of cycloid holes are arranged on the support plate, the cycloid penetrates through the rubber plug, then two ends of the cycloid stretch from the cycloid hole to the position below the support plate to hang the large pendulum ball and the small pendulum ball, and the cycloid can move in the rubber plug and the cycloid hole, so that length of two ends of the cycloid can be changed. Strong friction force exists between the rubber plug and the cycloid, so that position of the cycloid can be fixed after the length of the cycloid is adjusted. The demonstration device is provided with pendulum balls with different size, simultaneously adopts the cycloid with adjustable length and is capable of intuitively demonstrating single pendulum vibration frequency and the relation between the cycloid length and the weight of the pendulum balls.
Description
Technical field
The utility model relates to a kind of teaching demonstration instrument, relates in particular to a kind of simple pendulum oscillation apparatus for demonstrating.
Background technology
Thoroughly do away with flexible and length is constant, particle of the negligible line suspension of quality with one, under action of gravity, in the vertical plane, do periodic motion, just become single pendulum.When single pendulum vibrates under less than 5 ° condition at pivot angle, can be similar to and think simple harmonic motion.Period of single pendulum and amplitude and swing ball quality are irrelevant.From the loading angle analysis; The restoring force of single pendulum is the component of gravity along circular arc tangential line direction and point towards equilibrium positions, and the drift angle is big more, and restoring force is big more; Acceleration is big more; The arc length of in equal time, passing by is also big more, and is so cycle and amplitude, quality are irrelevant, only relevant with pendulum length and acceleration of gravity.In classroom instruction, need do analog demenstration, therefore need a kind of simple pendulum oscillation apparatus for demonstrating this rule.
The utility model content
The purpose of the utility model provides a kind of simple pendulum oscillation apparatus for demonstrating, and convenient demonstration simple pendulum oscillation frequency is relevant with which factor.
The utility model is that the technical scheme that its technical matters of solution is adopted is,
The simple pendulum oscillation apparatus for demonstrating includes the magnetic backboard, has support on the said magnetic backboard, and said support is provided with the cycloid of adjustable in length, and these cycloid two ends are hung with big swing ball and little swing ball respectively;
Said support includes Attraction block, and this Attraction block back side has kicker magnet, and this kicker magnet is attached to Attraction block on the magnetic backboard, and the Attraction block upper end is provided with support plate, and said cycloid is located on this support plate;
Said support plate is provided with rubber stopper and a pair of line hole, and after said cycloid passed from rubber stopper, its two ends extend the support plate below from the line hole outstanding with big swing ball and little swing ball; Cycloid can move in rubber and line hole; Thereby change the length at cycloid two ends, have stronger friction force between rubber stopper and the cycloid, therefore; After the length adjustment of cycloid, can be with the stationkeeping of cycloid.
The advantage of the utility model is, the swing ball that this apparatus for demonstrating being provided with varies in size has adopted the cycloid of adjustable length simultaneously, can demonstrate intuitively the relation of simple pendulum oscillation frequency and cycloid length and swing ball weight.
Description of drawings
Fig. 1 is the structural representation of the simple pendulum oscillation apparatus for demonstrating of the utility model proposition.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand with effect and understand, below in conjunction with illustrating and specific embodiment, further set forth the utility model.
As shown in Figure 1, the simple pendulum oscillation apparatus for demonstrating that the utility model proposes includes magnetic backboard 1, has support 2 on the said magnetic backboard 1, and said support 2 is provided with the cycloid 3 of adjustable in length, and these cycloid 3 two ends are hung with big swing ball 31 and little swing ball 32 respectively; Said support 2 includes Attraction block 21, and these Attraction block 21 back sides have kicker magnet 211, and this kicker magnet 211 is attached to Attraction block 21 on the magnetic backboard 1, and Attraction block 21 upper ends are provided with support plate 22, and said cycloid 3 is located on this support plate 22; Said support plate 22 is provided with rubber stopper 23 and a pair of line hole, and after said cycloid 3 passed from rubber stopper 23, its two ends extended support plate 22 belows big swing ball 31 and little swing ball 32 are hanged from the line hole; Cycloid 3 can move in rubber stopper 23 and line hole; Thereby change the length at cycloid 3 two ends, have stronger friction force between rubber stopper 23 and the cycloid 3, therefore; After the length adjustment of cycloid 3, can be with the stationkeeping of cycloid 3.
The swing ball that this apparatus for demonstrating being provided with varies in size has adopted the cycloid of adjustable length simultaneously, can demonstrate intuitively the relation of simple pendulum oscillation frequency and cycloid length and swing ball weight.
More than show and described the advantage of ultimate principle, principal character and the utility model of the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the instructions that the utility model just is described; The utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (3)
1. the simple pendulum oscillation apparatus for demonstrating is characterized in that, includes the magnetic backboard, has support on the said magnetic backboard, and said support is provided with the cycloid of adjustable in length, and these cycloid two ends are hung with big swing ball and little swing ball respectively.
2. simple pendulum oscillation apparatus for demonstrating according to claim 1 is characterized in that said support includes Attraction block; This Attraction block back side has kicker magnet; This kicker magnet is attached to Attraction block on the magnetic backboard, and the Attraction block upper end is provided with support plate, and said cycloid is located on this support plate.
3. simple pendulum oscillation apparatus for demonstrating according to claim 1 and 2 is characterized in that, said support plate is provided with rubber stopper and a pair of line hole, and after said cycloid passed from rubber stopper, its two ends extend the support plate below from the line hole outstanding with big swing ball and little swing ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120555120XU CN202434099U (en) | 2011-12-28 | 2011-12-28 | Single pendulum vibration demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120555120XU CN202434099U (en) | 2011-12-28 | 2011-12-28 | Single pendulum vibration demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202434099U true CN202434099U (en) | 2012-09-12 |
Family
ID=46783527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120555120XU Expired - Fee Related CN202434099U (en) | 2011-12-28 | 2011-12-28 | Single pendulum vibration demonstration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202434099U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103150945A (en) * | 2013-04-02 | 2013-06-12 | 江南大学 | Experimental instrument for parallel axis theorem |
| CN104575181B (en) * | 2013-10-03 | 2016-12-21 | 林建明 | A kind of pendulous device |
| CN106327968A (en) * | 2015-01-30 | 2017-01-11 | 乌鲁木齐九品芝麻信息科技有限公司 | Device for research of vertical plane dynamics |
| CN109994023A (en) * | 2017-12-29 | 2019-07-09 | 合肥探奥自动化有限公司 | A kind of device for demonstrating rigid-body vibration |
-
2011
- 2011-12-28 CN CN201120555120XU patent/CN202434099U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103150945A (en) * | 2013-04-02 | 2013-06-12 | 江南大学 | Experimental instrument for parallel axis theorem |
| CN104575181B (en) * | 2013-10-03 | 2016-12-21 | 林建明 | A kind of pendulous device |
| CN106327968A (en) * | 2015-01-30 | 2017-01-11 | 乌鲁木齐九品芝麻信息科技有限公司 | Device for research of vertical plane dynamics |
| CN106327969A (en) * | 2015-01-30 | 2017-01-11 | 王楚涵 | Device for vertical plane dynamics research |
| CN106327968B (en) * | 2015-01-30 | 2019-01-25 | 深圳旺科知识产权运营中心有限公司 | Device for vertical plane dynamics research |
| CN106327969B (en) * | 2015-01-30 | 2019-02-19 | 方小虎 | Device for vertical plane dynamics research |
| CN109994023A (en) * | 2017-12-29 | 2019-07-09 | 合肥探奥自动化有限公司 | A kind of device for demonstrating rigid-body vibration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120912 Termination date: 20121228 |