CN102236992A - Observation device of simple pendulum movement and record method of simple pendulum movement track - Google Patents
Observation device of simple pendulum movement and record method of simple pendulum movement track Download PDFInfo
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- CN102236992A CN102236992A CN2010101684382A CN201010168438A CN102236992A CN 102236992 A CN102236992 A CN 102236992A CN 2010101684382 A CN2010101684382 A CN 2010101684382A CN 201010168438 A CN201010168438 A CN 201010168438A CN 102236992 A CN102236992 A CN 102236992A
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- pendulum
- simple harmonic
- observation device
- harmonic motion
- measuring platform
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Abstract
The invention discloses an observation device of simple pendulum movement and a record method of a simple pendulum movement track. The observation device comprises a cross rod, a rope, a pendulum bob and an observation platform, wherein one end of the rope is tied to the cross rod, and the other end of the rope is connected with the pendulum bob; the pendulum bob is suspended above the observation platform; the pendulum bob is internally provided with an emitter; and the observation platform is internally provided with a receiving controller, and the top surface of the observation platform is provided with a display screen which is electrically connected with the output end of the receiving controller. The movement track of a periodic pendulum is recorded through an electronic induction technology, an observer is led to understand the basic law of the pendulum through analysis on a track image, and simultaneously the characteristics of various pendulums such as Foucault pendulum, compound pendulum, torsional pendulum and the like and applications of the pendulums in production and life are further learnt.
Description
Technical field
The present invention relates to a kind of recording method that realizes the observation device and the simple harmonic motion track of simple harmonic motion.
Background technology
The development and the research of pendulum have confidential relation with the development of clockwork timer.The famous mechanics scientist's Galileo of Italy has at first been studied single pendulum, and Dutch afterwards scientist C. Huygens has studied physical pendulum, and they lay a good foundation for the theory of mechanics of pendulum.
Pendulum is meant a kind of mechanical hook-up that can produce swing, can be used to represent all mechanics phenomenons.The most basic pendulum is made up of a rope or pole and a hammer.Hammer ties up to the below of rope, and the other end of rope is fixed.When promoting pendulum, hammer moves around.People can see the motion of pendulum, but can not see the movement locus of pendulum.
Summary of the invention
The present invention is in order to allow people can either see the motion of pendulum, can observe the observation device of realization simple harmonic motion of movement locus of pendulum and the recording method of simple harmonic motion track again, movement locus by electronic induction technical notes cycle pendulum, the guiding observer understands the basic law of pendulum, and then by to the analysis of trace image, the characteristic of various pendulum such as further understand Foucault pendulum, physical pendulum, rock and produce, application in the life.
The present invention realizes the observation device of simple harmonic motion, is characterized in, comprises a cross bar, a rope, a pendulum, a measuring platform; Described rope one end ties up on the cross bar, and the other end connects pendulum; Described pendulum is suspended on the top of described measuring platform; Be provided with a transmitter in the described pendulum, be provided with one in the described measuring platform and receive controller, the end face of this measuring platform is provided with the display screen that is electrically connected with the output terminal that receives controller.
The observation device of above-mentioned realization simple harmonic motion, wherein, described display screen is made of light emitting diode matrix.
The observation device of above-mentioned realization simple harmonic motion, wherein, described reception controller comprises a receiving circuit, a comparator circuit, a control circuit and a LED driving circuit that is linked in sequence, and the output terminal of described LED driving circuit is electrically connected with light emitting diode matrix.
The observation device of above-mentioned realization simple harmonic motion, wherein, described comparator circuit mainly is made of computing circuit.
The observation device of above-mentioned realization simple harmonic motion, wherein, described control circuit mainly is made of a single-chip microcomputer.
The observation device of above-mentioned realization simple harmonic motion, wherein, described transmitter is a luminotron.
The observation device of above-mentioned realization simple harmonic motion, wherein, described measuring platform is provided with access door.
Utilize the observation device of realizing simple harmonic motion to realize the recording method of simple harmonic motion track, be characterized in, may further comprise the steps:
1, pendulum is moved to any one position on the measuring platform, decontrol then and allow it freely swing;
2, pendulum in swing process the transmitter on it constantly the reception controller in measuring platform transmit;
3, the receiving circuit that receives controller is followed the tracks of the signal that receives transmitter emission on the pendulum, and this signal is outputed to comparator circuit;
4, comparator circuit is gathered the signal of receiving circuit output in good time, and changing value is outputed to control circuit;
5, when control circuit receives the high level " 1 " of comparator circuit output, this control circuit converts " 1 " value the high level of driven for emitting lights diode operation to, makes lumination of light emitting diode;
6, described light emitting diode has constituted the movement locus that writes down this pendulum.
Above-mentioned utilization realizes the recording method of the observation device realization simple harmonic motion track of simple harmonic motion, and wherein, the signal of described transmitter emission is the linear high light greater than 400MCD; Photoresistance in this strong illumination comparator circuit allows the resistance of photoresistance change, and comparator circuit is gathered changing value in good time, and will collect high level " 1 " value and output to control circuit.
Above-mentioned utilization realizes the recording method of the observation device realization simple harmonic motion track of simple harmonic motion; wherein; the movement locus of a complete cycle of the every motion of described pendulum can continue to show on LED display, can the track that lumination of light emitting diode constitutes be removed by Protection Counter Functions.
Because the present invention has adopted above technical scheme, arranges a measuring platform, the table top of measuring platform is made of LED display; One of center position vertical hanging has comprised the rope pendulum of pendulum above measuring platform, and pendulum is provided with transmitter, is provided with the reception controller in the measuring platform.The observer moves to position on any one inspection surface with pendulum, decontrols then to allow it freely swing, and can write down the running orbit of pendulum on the LED display pendulum under.The running orbit of each complete cycle can continue to show that the observer can remove track by Protection Counter Functions on LED display.Thereby the observer can be by repeating to demonstrate the laws of motion and the nonrepeatability of observing pendulum.
In addition, adopt the round LED display screen as display, the observer is consistent from the effect of the track of which angle observed and recorded of measuring platform, does not have bias distortion.And this round LED display screen also can solve existing liquid crystal or plasma display and be difficult to make big circular problem.
Description of drawings
Concrete structure of the present invention is further provided by following embodiment and accompanying drawing thereof.
Fig. 1 is the one-piece construction synoptic diagram of the present invention's observation device of realizing simple harmonic motion.
Fig. 2 is the structural representation (analysing and observe) that the present invention realizes pendulum in the observation device of simple harmonic motion.
Fig. 3 is the vertical view that the present invention realizes measuring platform in the observation device of simple harmonic motion.
Fig. 4 is the electrical block diagram that the present invention realizes receiving in the observation device of simple harmonic motion controller.
Fig. 5 is the circuit theory diagrams that the present invention receives controller.
Fig. 6 is a workflow diagram of the present invention.
Embodiment
The present invention is by the movement locus of electronic induction technical notes cycle pendulum, and by analysis to trace image, the guiding observer understands the basic law of pendulum, thus further understand Foucault pendulum, physical pendulum, rock etc. various pendulum characteristic and produce, application in the life.
See also Fig. 1, Fig. 2, wherein Fig. 1 is an one-piece construction synoptic diagram of the present invention, and Fig. 2 is the vertical view that the present invention realizes measuring platform in the observation device of simple harmonic motion.The present invention realizes the observation device of simple harmonic motion, comprises a cross bar 1, a rope 2, a pendulum 3, a measuring platform 4; Described rope 2 one ends tie up on the cross bar 1, and the other end connects pendulum 3.Described pendulum 3 is suspended on the top of described measuring platform 4.
The table top of described measuring platform 4 is provided with display screen 41, and described display screen 41 is made of light emitting diode matrix.Be provided with one and receive controller 43 in measuring platform 4, the display screen of the table top of described measuring platform is electrically connected with the output terminal that receives controller 43.Described measuring platform is provided with access door 44.LED display of the present invention is circular display screen in the present embodiment.
See also Fig. 3, Fig. 3 is the structural representation (analysing and observe) that the present invention realizes pendulum in the observation device of simple harmonic motion.Described pendulum 3 comprises a housing 31, is provided with a weight block 32 in the housing, and the bottom of housing is provided with a through hole 33, is provided with a transmitter 34 in the described through hole 33, and described transmitter 34 is luminotrons.Outside at housing coats one deck soft plastic 35.Be provided with the connecting portion 36 that is connected with rope at the top of housing
See also Fig. 4, Fig. 4 is the electrical block diagram that the present invention realizes receiving in the observation device of simple harmonic motion controller.Reception controller 43 described in the utility model comprises a receiving circuit 431, a comparator circuit 432, a control circuit 433 and a LED driving circuit 434 that is linked in sequence, and the output terminal of described LED driving circuit is electrically connected with light emitting diode matrix.
See also Fig. 5, Fig. 5 is the circuit theory diagrams that the present invention receives controller.Comparator circuit of the present invention mainly is made of computing circuit.Described control circuit mainly is made of a single-chip microcomputer.
See also Fig. 6, Fig. 6 is a workflow diagram of the present invention.During observation, observer's pull-up pendulum puts down then, watches the running orbit on the LED display.The present invention utilizes the observation device of realizing simple harmonic motion to realize the recording method of simple harmonic motion track, may further comprise the steps:
The receiving circuit of step 3, reception controller is followed the tracks of the signal that receives transmitter emission on the pendulum, and this signal is outputed to comparator circuit;
The luminous point that step 6, described light emitting diode send has constituted the movement locus that writes down this pendulum.This movement locus can continue to show on LED display, track be removed by Protection Counter Functions up to the observer
The present invention makes observation and record pendular motion method easy, directly perceived by electronic induction pendulum tracking technique.
Claims (10)
1. realize the observation device of simple harmonic motion, it is characterized in that, comprise a cross bar, a rope, a pendulum, a measuring platform; Described rope one end ties up on the cross bar, and the other end connects pendulum; Described pendulum is suspended on the top of described measuring platform; Be provided with a transmitter in the described pendulum, be provided with one in the described measuring platform and receive controller, the end face of this measuring platform is provided with the display screen that is electrically connected with the output terminal that receives controller.
2. the observation device of realization simple harmonic motion according to claim 1 is characterized in that, described measuring platform is rounded, and described display screen is also rounded, is made of light emitting diode matrix.
3. the observation device of realization simple harmonic motion according to claim 2, it is characterized in that, described reception controller comprises a receiving circuit, a comparator circuit, a control circuit and a LED driving circuit that is linked in sequence, and the output terminal of described LED driving circuit is electrically connected with light emitting diode matrix.
4. the observation device of realization simple harmonic motion according to claim 3 is characterized in that, described comparator circuit mainly is made of computing circuit.
5. the observation device of realization simple harmonic motion according to claim 3 is characterized in that, described control circuit mainly is made of a single-chip microcomputer.
6. the observation device of realization simple harmonic motion according to claim 1 is characterized in that, described transmitter is a luminotron.
7. the observation device of realization simple harmonic motion according to claim 1 is characterized in that, described measuring platform is provided with access door.
8. utilize the observation device of realizing simple harmonic motion to realize the recording method of simple harmonic motion track, it is characterized in that, may further comprise the steps:
8-1, pendulum is moved to any one position on the measuring platform, decontrol then and allow it freely swing;
8-2, pendulum in swing process the transmitter on it constantly the reception controller in measuring platform transmit;
The receiving circuit of 8-3, reception controller is followed the tracks of the signal that receives transmitter emission on the pendulum, and this signal is outputed to comparator circuit;
8-4, comparator circuit are gathered the signal of receiving circuit output in good time, and changing value is outputed to control circuit;
8-5, when control circuit receives the high level " 1 " of comparator circuit output, this control circuit converts " 1 " value the high level of driven for emitting lights diode operation to, makes lumination of light emitting diode;
8-6, described lumination of light emitting diode have constituted the movement locus that writes down this pendulum.
9. utilization according to claim 8 realizes the recording method of the observation device realization simple harmonic motion track of simple harmonic motion, it is characterized in that, the signal of the described transmitter emission of step 8-2 is the linear high light greater than 400MCD; Photoresistance in this strong illumination comparator circuit allows the resistance of photoresistance change, and comparator circuit is gathered changing value in good time, and will collect high level " 1 " value and output to control circuit.
10. utilization according to claim 8 realizes the recording method of the observation device realization simple harmonic motion track of simple harmonic motion; it is characterized in that; the movement locus of a complete cycle of the every motion of described pendulum can continue to show on LED display, can the track that lumination of light emitting diode constitutes be removed by Protection Counter Functions.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010168438.2A CN102236992B (en) | 2010-05-06 | 2010-05-06 | Observation device of simple pendulum movement and record method of simple pendulum movement track |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010168438.2A CN102236992B (en) | 2010-05-06 | 2010-05-06 | Observation device of simple pendulum movement and record method of simple pendulum movement track |
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| Publication Number | Publication Date |
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| CN102236992A true CN102236992A (en) | 2011-11-09 |
| CN102236992B CN102236992B (en) | 2014-06-25 |
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| CN201010168438.2A Active CN102236992B (en) | 2010-05-06 | 2010-05-06 | Observation device of simple pendulum movement and record method of simple pendulum movement track |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104091495A (en) * | 2014-05-05 | 2014-10-08 | 凌锡帮 | Multifunctional motion recorder |
| CN104575182A (en) * | 2014-12-18 | 2015-04-29 | 韩腾 | Experimental device for measuring gravitational acceleration with simple pendulum |
| CN106997707A (en) * | 2017-06-09 | 2017-08-01 | 温州大学 | Laser-marking simple harmonic motion apparatus for demonstrating and its method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2735474Y (en) * | 2004-08-24 | 2005-10-19 | 苏长武 | Experiment instrument for simple pendulum simple harmonic vibration |
| CN201210359Y (en) * | 2008-05-06 | 2009-03-18 | 韩霄腾 | Infrared single pendulum demonstration apparatus |
| CN201681516U (en) * | 2010-05-06 | 2010-12-22 | 上海科技馆 | Single-pendulum track record display system |
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2010
- 2010-05-06 CN CN201010168438.2A patent/CN102236992B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2735474Y (en) * | 2004-08-24 | 2005-10-19 | 苏长武 | Experiment instrument for simple pendulum simple harmonic vibration |
| CN201210359Y (en) * | 2008-05-06 | 2009-03-18 | 韩霄腾 | Infrared single pendulum demonstration apparatus |
| CN201681516U (en) * | 2010-05-06 | 2010-12-22 | 上海科技馆 | Single-pendulum track record display system |
Non-Patent Citations (1)
| Title |
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| 王殿学等: "新型智能单摆实验仪的研制", 《辽东学院学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104091495A (en) * | 2014-05-05 | 2014-10-08 | 凌锡帮 | Multifunctional motion recorder |
| CN104575182A (en) * | 2014-12-18 | 2015-04-29 | 韩腾 | Experimental device for measuring gravitational acceleration with simple pendulum |
| CN106997707A (en) * | 2017-06-09 | 2017-08-01 | 温州大学 | Laser-marking simple harmonic motion apparatus for demonstrating and its method |
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| Publication number | Publication date |
|---|---|
| CN102236992B (en) | 2014-06-25 |
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