CN203179350U - Simple pendulum experiment instrument - Google Patents
Simple pendulum experiment instrument Download PDFInfo
- Publication number
- CN203179350U CN203179350U CN 201320193893 CN201320193893U CN203179350U CN 203179350 U CN203179350 U CN 203179350U CN 201320193893 CN201320193893 CN 201320193893 CN 201320193893 U CN201320193893 U CN 201320193893U CN 203179350 U CN203179350 U CN 203179350U
- Authority
- CN
- China
- Prior art keywords
- pendulum
- experiment
- crossbeam
- simple pendulum
- bead
- 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
Images
Landscapes
- Measurement Of Unknown Time Intervals (AREA)
Abstract
The utility model is a simple pendulum experiment instrument which comprises a crossbeam arranged at an upper part of a support, a small simple pendulum ball arranged under the crossbeam and two pendulum lines connected with the small simple pendulum ball. End parts of the two pendulum lines are connected with two ends of the crossbeam respectively. An electromagnet fixed at a lower part of the support is arranged next to the small simple pendulum ball. According to the simple pendulum experiment instrument, the two pendulum lines are adopted instead of a single pendulum line and the electromagnet is additionally arranged, and thus a phenomenon of conical pendulum is prevented; and in addition, a photogate is used to carry out timing and counting swing of the small simple pendulum ball, and thus personal errors are reduced, accuracy and success rate of experiment are raised, and experimental operation is simple and convenient.
Description
Technical field
The utility model relates to a kind of physics facility, particularly the experiment with simple pendulum instrument.
Background technology
Be an important geophysics constant at acceleration of gravity, single pendulum method check weighing power acceleration is the simplest a kind of, and records more accurate g value easily.Experiment with simple pendulum is on approximate simple harmonic oscillation basis. by to pendulum length and the measurement of swing ball vibration period, calculate local gravitational acceleration.This experiment adopts stopwatch to carry out period measurement usually.Because therefore each manual table time error of pressing adopts the artificial counting mode more than 0.02 s, measured value is inaccurate, thereby causes bigger experimental error.And can't guarantee that cycloid departs from the maximum angle of equilibrium position and is difficult to guarantee that swing ball does the circumference pendular motion in vertical plane, this will directly cause the error of experimental result bigger than normal.
Summary of the invention
Technical problem to be solved in the utility model is at the deficiencies in the prior art, and reasonable in design a, convenient experimental operation is provided, experiment accuracy and the high experiment with simple pendulum instrument of success ratio.
Technical problem to be solved in the utility model is to realize by following technical scheme, the utility model is a kind of experiment with simple pendulum instrument, be characterized in: comprise the crossbeam that is located at support top, the crossbeam below is provided with the single pendulum bead, connect two cycloids on the single pendulum bead, the end of two cycloids is connected with the two ends of crossbeam respectively, is provided with the electromagnet that is fixed on the support bottom on the next door of single pendulum bead.
Technical problem to be solved in the utility model can also further realize by following technical scheme, is provided with the photoelectricity door that cooperates with the minimum point of single pendulum bead at the base of support, is connected with digital timer on the photoelectricity door.
Compared with prior art, the utility model adopts two cycloids to replace single cycloid, and add electromagnet, thereby overcome circular cone pendulum phenomenon, utilize the photoelectricity door that timing and counting are carried out in the swing of single pendulum bead simultaneously, reduce the introducing of personal error, improve accuracy and the success ratio of experiment, and make experimental implementation more simple and and convenient.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Embodiment
Following with reference to accompanying drawing, further describe concrete technical scheme of the present utility model, so that those skilled in the art understands the present invention further, and do not constitute the restriction to its right.
Embodiment 1, with reference to Fig. 1, a kind of experiment with simple pendulum instrument, comprise the crossbeam 1 that is located at support 2 tops, crossbeam 1 below is provided with single pendulum bead 4, the end that connects 6, two cycloids 6 of two cycloids on the single pendulum bead 4 is connected with the two ends of crossbeam 1 respectively, overcomes the circular cone pendulum phenomenon that single pendulum bead 4 occurs when swing in the traditional experiment.Be provided with the electromagnet 3 that is fixed on support 2 bottoms on the next door of single pendulum bead 4.To have that very ferromagnetic neodymium-iron-boron cylindrical form bar magnet is floating to be suspended in the air core coil central authorities of energising as the initial position of bead.Electromagnet 3 within the specific limits can move left and right, by adjusting the position of electromagnet 3, so just can guarantee that the swing drift angle of single pendulum is no more than before the experiment
, make single pendulum bead 4 make plane rocking in same vertical plane.When disconnecting the power supply of electromagnet 3, the initial velocity of single pendulum bead 4 is zero, just can avoid single pendulum bead 4 to do taper swinging momvement, to guarantee that 4 controls of single pendulum bead are done simple harmonic oscillation in a vertical plane.
Claims (2)
1. experiment with simple pendulum instrument, it is characterized in that: comprise the crossbeam that is located at support top, the crossbeam below is provided with the single pendulum bead, connects two cycloids on the single pendulum bead, the end of two cycloids is connected with the two ends of crossbeam respectively, is provided with the electromagnet that is fixed on the support bottom on the next door of single pendulum bead.
2. experiment with simple pendulum instrument according to claim 1, it is characterized in that: the base at support is provided with the photoelectricity door that cooperates with the minimum point of single pendulum bead, is connected with digital timer on the photoelectricity door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320193893 CN203179350U (en) | 2013-04-17 | 2013-04-17 | Simple pendulum experiment instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320193893 CN203179350U (en) | 2013-04-17 | 2013-04-17 | Simple pendulum experiment instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203179350U true CN203179350U (en) | 2013-09-04 |
Family
ID=49076019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320193893 Expired - Fee Related CN203179350U (en) | 2013-04-17 | 2013-04-17 | Simple pendulum experiment instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203179350U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104867384A (en) * | 2015-06-22 | 2015-08-26 | 湖南城市学院 | Simple pendulum experiment used pendulum ball capable of achieving precise pendulum length |
| CN110556040A (en) * | 2019-09-09 | 2019-12-10 | 天津师范大学 | Simple pendulum motion evolution and phase diagram observer |
-
2013
- 2013-04-17 CN CN 201320193893 patent/CN203179350U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104867384A (en) * | 2015-06-22 | 2015-08-26 | 湖南城市学院 | Simple pendulum experiment used pendulum ball capable of achieving precise pendulum length |
| CN110556040A (en) * | 2019-09-09 | 2019-12-10 | 天津师范大学 | Simple pendulum motion evolution and phase diagram observer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202003549U (en) | Gravity acceleration experimental instrument | |
| CN203085038U (en) | Single-chip microcomputer contrast-type Lenz's law physics demonstration device | |
| CN202523276U (en) | Gravity acceleration tester | |
| CN203179350U (en) | Simple pendulum experiment instrument | |
| CN203241019U (en) | Flatness test rack | |
| CN206282497U (en) | A kind of single pendulum for measuring acceleration of gravity | |
| CN102637377B (en) | Rotational inertia tester capable of measuring gravity acceleration | |
| CN203242220U (en) | Experimental device for measuring gravitational acceleration by using single pendulum | |
| CN203134495U (en) | Magnetic field generating system for producing three-dimensional magnetic field | |
| CN103217721A (en) | Gravitational acceleration measuring device | |
| CN205249488U (en) | Speaker part [coefficient of] stiffness measuring device | |
| CN102496322A (en) | High-precision simple pendulum period measuring device | |
| CN206249719U (en) | A kind of magnetic Chaos Pendulum that can freely change stress point quantity and position | |
| CN205247723U (en) | Overweight weightless demonstration appearance | |
| CN204516180U (en) | A kind of Buoyancy demonstration instrument | |
| CN201130457Y (en) | Simple pendulum experimental machine | |
| CN204808676U (en) | Elasticity pendulum experimental apparatus | |
| CN103985290A (en) | Method for measuring gravity acceleration by sleeving cylinder to increase compound pendulum length | |
| CN103412473A (en) | Hourglass device allowing time regulation | |
| CN203981249U (en) | Electromagnetic levitation type platform scale | |
| CN208384869U (en) | A kind of teaching movement of falling object experiment instrument | |
| CN203242219U (en) | Bifilar pendulum | |
| CN204066523U (en) | A kind of asymmetric pendulum | |
| CN205562835U (en) | Acceleration of gravity detection device | |
| CN207558259U (en) | High-precision remote control Simple Pendulum Cycle Measurement Instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20160417 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |