CN203013065U - Simple pendulum period measuring instrument - Google Patents
Simple pendulum period measuring instrument Download PDFInfo
- Publication number
- CN203013065U CN203013065U CN 201320011100 CN201320011100U CN203013065U CN 203013065 U CN203013065 U CN 203013065U CN 201320011100 CN201320011100 CN 201320011100 CN 201320011100 U CN201320011100 U CN 201320011100U CN 203013065 U CN203013065 U CN 203013065U
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- China
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- switching element
- base
- hall switching
- iron ball
- simple pendulum
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Abstract
The utility model relates to education equipment, and particularly relates to an experimental instrument for measuring the swing period of a simple pendulum in physics teaching. The simple pendulum period measuring instrument comprises a base (1), a bracket (2) and an iron ball (4) suspended on the bracket (2) through a swing thread (3). The base (1) is a box body and provided with a power supply (5), a Hall switching element (6), a magnet (7), a timer (8) and a switch (9), wherein the Hall switching element (6) is fixed on the top surface of the base (1) and located right below the iron ball (4) when the iron ball (4) is static, the magnet (7) is fixed right below the Hall switching element (6), and the power supply (5), the Hall switching element (6), the timer (8) and the switch (9) are electrically connected through a wire. The simple pendulum period measuring instrument provided by the utility model has the advantages of simple structure, precise measurement and convenient demonstration.
Description
Technical field
The utility model relates to the education equipment, is specifically related to a kind of for the physics teaching measurement single pendulum experimental apparatus of hunting period.
Background technology
Using single pendulum measurement acceleration of gravity is the Physical Experiment of classics, in measuring process, the method in traditional measurement simple pendulum oscillation cycle is: utilize stopwatch to begin timing when the single pendulum iron ball arrives the equilibrium position, and record the number of oscillations of single pendulum, press stopwatch and stop timing when reaching the number of oscillations of regulation, the numerical value that records according to stopwatch just can calculate the vibration period of single pendulum.Owing to utilizing the timing of stopwatch start-of-record and stopping moment of timing, all need operator's single pendulum iron ball that detects by an unaided eye whether to reach the equilibrium position, there is artificial error in judgement, also there is larger error in the vibration period of measuring.
Summary of the invention
Technical problem to be solved in the utility model is: provide a kind of measurement accurate Simple Pendulum Cycle Measurement Instrument.
Technical solution of the present utility model is: it comprises base, support and is suspended on iron ball on support by cycloid, described base is casing, base is provided with power supply, Hall switching element, magnet, timer and switch, the end face that Hall switching element is fixed on base when static iron ball under, magnet be fixed on Hall switching element under, power supply, Hall switching element, timer and switch are electrically connected by wire.
Technique effect of the present utility model is: it have simple in structure, measure accurately and demonstrate advantage easily.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, it comprises base 1, support 2 and is suspended on iron ball 4 on support 2 by cycloid 3, described base 1 is casing, base 1 is provided with power supply 5, Hall switching element 6, magnet 7, timer 8 and switch 9, the end face that Hall switching element 6 is fixed on base 1 when static iron ball 4 under, magnet 7 be fixed on Hall switching element 6 under, power supply 5, Hall switching element 6, timer 8 and switch 9 are electrically connected by wire.
Integrated Hall on-off element 6 is apart from 10 centimetres of left and right of iron ball.During work, open switch 9, iron ball 4 is pulled away from the equilibrium position, and this moment, the magnetic line of force disperseed, and did not concentrate and passed Integrated Hall on-off element 6, Hall switching element 6 output low levels, when iron ball 4 pendulum arrived the equilibrium position, the magnetic line of force was concentrated and is passed Hall switching element 6, can produce larger hall electromotive force, export high level after amplification, shaping, and then obtain hunting period.
Adopting the utility model to replace manual time-keeping, can overcome the error that artificial measurement single pendulum brings hunting period, is a kind of high precision single pendulum the Swing-period Measure Instrument device.
Claims (1)
1. Simple Pendulum Cycle Measurement Instrument, comprise base (1), support (2) and be suspended on iron ball (4) on support (2) by cycloid (3), it is characterized in that, described base (1) is casing, base (1) is provided with power supply (5), Hall switching element (6), magnet (7), timer (8) and switch (9), the end face that Hall switching element (6) is fixed on base (1) when static iron ball (4) under, magnet (7) be fixed on Hall switching element (6) under, power supply (5), Hall switching element (6), timer (8) and switch (9) are electrically connected by wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320011100 CN203013065U (en) | 2013-01-10 | 2013-01-10 | Simple pendulum period measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320011100 CN203013065U (en) | 2013-01-10 | 2013-01-10 | Simple pendulum period measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203013065U true CN203013065U (en) | 2013-06-19 |
Family
ID=48604637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320011100 Expired - Fee Related CN203013065U (en) | 2013-01-10 | 2013-01-10 | Simple pendulum period measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203013065U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104318829A (en) * | 2014-10-17 | 2015-01-28 | 郭金虎 | Hall effect based double-digital-display simple pendulum period high-accuracy synchronous measuring device |
-
2013
- 2013-01-10 CN CN 201320011100 patent/CN203013065U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104318829A (en) * | 2014-10-17 | 2015-01-28 | 郭金虎 | Hall effect based double-digital-display simple pendulum period high-accuracy synchronous measuring device |
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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: 20130619 Termination date: 20140110 |