CN203812453U - Numerical control type simple pendulum experiment demonstration apparatus based on pendulum line detection - Google Patents
Numerical control type simple pendulum experiment demonstration apparatus based on pendulum line detection Download PDFInfo
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- CN203812453U CN203812453U CN201420206696.9U CN201420206696U CN203812453U CN 203812453 U CN203812453 U CN 203812453U CN 201420206696 U CN201420206696 U CN 201420206696U CN 203812453 U CN203812453 U CN 203812453U
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- pendulum
- chip microcomputer
- pillar
- cycloid
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Abstract
A numerical control type simple pendulum experiment demonstration apparatus based on pendulum line detection comprises a pedestal. A pillar is vertically fixed onto the pedestal. A semicircular protractor is horizontally fixed onto the pillar. A rod is horizontally fixed onto an upper end of the pillar. A pendulum line is fastened to the front end of the rod. A pendulum is fasted to a lower end of the pendulum line. One side of the rod is connected with an upper end of a vertical scale, and a lower end of the scale is fixed onto the pedestal. A photoelectric sensor support is fixed to an upper part of the scale. A reciprocal emission photoelectric sensor is mounted on the photoelectric sensor support. When the pendulum swings, the pendulum line is positioned between a light-emitting tube and a light receiving tube. The reciprocal emission photoelectric sensor is electrically connected with an ME500B single-chip microcomputer. Five digital display tubes and a battery are also installed on the ME500B single-chip microcomputer. The numerical control type simple pendulum experiment demonstration apparatus based on the pendulum line detection adopts a method of performing intelligent detection on the pendulum lien of a simple pendulum, uses the single-chip microcomputer to perform intelligent control, applies the digital display tubes for dynamic display, and thus substantially improves precision of experiment data and realize full-automatic numerical control of the entire experiment.
Description
Technical field
The utility model relates to senior middle school physics teaching experimental apparatus, i.e. a kind of digital control type experiment with simple pendulum demonstration instrument based on cycloid detecting.
Background technology
The measured data of experiment with simple pendulum of high school physics, can not only help us to infer the formula of single pendulum, can also calculate for our height, the radius of the earth etc. to acceleration of gravity, massif or buildings.And traditional experiment with simple pendulum, in study, when single pendulum, student utilizes single pendulum, stopwatch to test, and the number of occurrence 30 times is above, surpass 100 seconds at every turn.A class has been done in an experiment, experimental result or not ideal.Because its measuring accuracy of experimental provision adopting is not very high, be subject to human factor impact toward contact, experiment needs to adopt repeatedly above manual measurement tens of times, makes the efficiency data not high, that record of experiment also very inaccurate.
Summary of the invention
For overcome in traditional experiment with simple pendulum manual measurement time-consuming, take a lot of work, coarse shortcoming, the utility model adopts singlechip technology to carry out designing and making, utilize correlation photoelectric sensor to carry out precision detecting to the cycloid of single pendulum, a kind of digital control type experiment with simple pendulum demonstration instrument based on the cycloid detecting cycle of measuring being shown intuitively with charactron.
This digital control type experiment with simple pendulum demonstration instrument based on cycloid detecting, comprise a base, it is characterized in that, vertically on base be fixed with a pillar, the protractor that is fixed with semi-circular plate of level on pillar, pillar is positioned at protractor central authorities, pillar upper end level fix a pole, the centre bit of pole front end is equipped with an aperture vertically downward, the cycloid that knot was beaten in upper end passes in aperture, there is pendulum in cycloid lower end system, one side of pole is connected with vertical scale upper end, the lower end of scale is fixed on base, scale top is fixed with opto-electronic sensor support, the correlation photoelectric sensor of luminotron and light receiving tube composition is installed on opto-electronic sensor support, when pendulum swings, cycloid is between luminotron and light receiving tube, correlation photoelectric sensor and the electrical connection of ME500B single-chip microcomputer, in order to calculate the number of times of single pendulum and the time of swing, digital display tube and the battery of five are also installed on ME500B single-chip microcomputer.
Top, ME500B single-chip microcomputer the right is connected with five digital kinescopes by five triodes 8550, bottom, the right is connected with the power circuit that capacitor C 4, C5, K switch 3, integrated regulator 7805 form, the ME500B single-chip microcomputer left side is connected with the circuit of resistance R 1, light emitting diode D1 series connection, be connected with the circuit of resistance R 2, R3, triode Q1 composition, be connected with the circuit of resistance R 4, R5, triode Q2 composition, be connected with the oscillating circuit of capacitor C 1, resistance R 7, K switch 1, K2, capacitor C 2, capacitor C 3, crystal oscillator Y composition.
Before experiment, cycloid up mentioned and fix the length that can change cycloid, while test, allowing pendulum swing, the length of tape measure cycloid, protractor is measured the pivot angle of cycloid, the number of times that correlation photosensors record swings, the time that single-chip microcomputer record swings simultaneously, and the automatic time that demonstrates every 10 hunting periods on five-digit number code pipe, illustrate that cycloid is shorter, the cycle is shorter, and frequency is higher.This fiber communication experiment demonstration instrument is made up of components and parts such as correlation photoelectric sensor, single-chip microcomputer, charactron, protractors, adopt the mode of the cycloid of single pendulum being carried out to intelligence detecting, use single-chip microcomputer to carry out Based Intelligent Control, having applied charactron dynamically shows, greatly improve the precision of experimental data, and realized the full-automatic numerical control of whole experiment, have that experimental period is short, experimental data shows feature very intuitively.
Brief description of the drawings
Fig. 1 is front view of the present utility model
Fig. 2 is right view of the present utility model
Fig. 3 is circuit diagram of the present utility model
1, base, 2, pillar, 3, protractor, 4, cycloid, 5, pendulum, 6, pole, 7, scale, 8, opto-electronic sensor support, 9, correlation photoelectric sensor, 10, ME500B single-chip microcomputer, 11, digital display tube, 12, battery.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail as follows:
In Fig. 1 and Fig. 2, this digital control type experiment with simple pendulum demonstration instrument based on cycloid detecting, comprise a base 1, vertically on base 1 be fixed with a pillar 2, the protractor that is fixed with semi-circular plate 3 of level on pillar 2, pillar 2 is positioned at protractor 3 central authorities, the centre bit of pole 2 front ends is equipped with an aperture vertically downward, the cycloid 4 that knot was beaten in upper end passes in aperture, there is pendulum 5 in cycloid 4 lower end systems, pillar 2 upper end levels fix a pole 6, one side of pole 6 is connected with vertical scale 7 upper ends, the lower end of scale 7 is fixed on base 1, scale 7 tops are fixed with opto-electronic sensor support 8, the correlation photoelectric sensor 9 of luminotron and light receiving tube composition is installed on opto-electronic sensor support 8, when pendulum 5 swings, cycloid 4 is between luminotron and light receiving tube, correlation photoelectric sensor 9 and ME500B single-chip microcomputer 10 are electrically connected, in order to calculate the number of times of single pendulum and the time of swing, digital display tube 11 and the battery 12 of five are also installed on ME500B single-chip microcomputer 10.
In Fig. 2, top, ME500B single-chip microcomputer the right is connected with five digital kinescopes by five triodes 8550, bottom, the right is connected with the power circuit that capacitor C 4, C5, K switch 3, integrated regulator 7805 form, the ME500B single-chip microcomputer left side is connected with the circuit of resistance R 1, light emitting diode D1 series connection, be connected with the circuit of resistance R 2, R3, triode Q1 composition, be connected with the circuit of resistance R 4, R5, triode Q2 composition, be connected with the oscillating circuit of capacitor C 1, resistance R 7, K switch 1, K2, capacitor C 2, capacitor C 3, crystal oscillator Y composition.
Claims (2)
1. the digital control type experiment with simple pendulum demonstration instrument based on cycloid detecting, comprise a base, it is characterized in that, vertically on base be fixed with a pillar, the protractor that is fixed with semi-circular plate of level on pillar, pillar is positioned at protractor central authorities, pillar upper end level fix a pole, the centre bit of pole front end is equipped with an aperture vertically downward, the cycloid that knot was beaten in upper end passes in aperture, there is pendulum in cycloid lower end system, one side of pole is connected with vertical scale upper end, the lower end of scale is fixed on base, scale top is fixed with opto-electronic sensor support, the correlation photoelectric sensor of luminotron and light receiving tube composition is installed on opto-electronic sensor support, when pendulum swings, cycloid is between luminotron and light receiving tube, correlation photoelectric sensor and the electrical connection of ME500B single-chip microcomputer, in order to calculate the number of times of single pendulum and the time of swing, digital display tube and the battery of five are also installed on ME500B single-chip microcomputer.
2. a kind of digital control type experiment with simple pendulum demonstration instrument based on cycloid detecting according to claim 1, it is characterized in that, top, ME500B single-chip microcomputer the right is connected with five digital kinescopes by five triodes 8550, bottom, the right and capacitor C 4, C5, K switch 3, the power circuit that integrated regulator 7805 forms is connected, the ME500B single-chip microcomputer left side and resistance R 1, the circuit of light emitting diode D1 series connection is connected, with resistance R 2, R3, the circuit of triode Q1 composition is connected, with resistance R 4, R5, the circuit of triode Q2 composition is connected, with capacitor C 1, resistance R 7, K switch 1, K2, capacitor C 2, capacitor C 3, the oscillating circuit of crystal oscillator Y composition is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420206696.9U CN203812453U (en) | 2014-04-26 | 2014-04-26 | Numerical control type simple pendulum experiment demonstration apparatus based on pendulum line detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420206696.9U CN203812453U (en) | 2014-04-26 | 2014-04-26 | Numerical control type simple pendulum experiment demonstration apparatus based on pendulum line detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203812453U true CN203812453U (en) | 2014-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420206696.9U Expired - Fee Related CN203812453U (en) | 2014-04-26 | 2014-04-26 | Numerical control type simple pendulum experiment demonstration apparatus based on pendulum line detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203812453U (en) |
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2014
- 2014-04-26 CN CN201420206696.9U patent/CN203812453U/en not_active Expired - Fee Related
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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: 20140903 Termination date: 20150426 |
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| EXPY | Termination of patent right or utility model |