CN102236992B - 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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- CN102236992B CN102236992B CN201010168438.2A CN201010168438A CN102236992B CN 102236992 B CN102236992 B CN 102236992B CN 201010168438 A CN201010168438 A CN 201010168438A CN 102236992 B CN102236992 B CN 102236992B
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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 of observation device and the simple harmonic motion track of realizing simple harmonic motion.
Background technology
Development and the research of pendulum, have close relationship with the development of clockwork timer.First the famous mechanics scientist's Galileo of Italy has studied single pendulum, and Dutch scientist C. Huygens had studied physical pendulum afterwards, and they are that the theory of mechanics of pendulum is laid a good foundation.
Pendulum refers to a kind of mechanical hook-up that can produce swing, can be used to represent all Mechanics Phenomenons.The most basic pendulum is by a rope or pole, and a hammer composition.Hammer ties up to the below of rope, and the other end of rope is fixed.In the time 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 again the observation device of realizing simple harmonic motion of movement locus and the recording method of simple harmonic motion track of pendulum, by the movement locus of electronic induction technical notes cycle pendulum, guiding observer understands the basic law of pendulum, and then by the analysis to trace image, the characteristic of various pendulum such as further understand Foucault pendulum, physical pendulum, rock and the application producing, in life thereof.
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 cross bar, and the other end connects pendulum; Described pendulum is suspended on the top of described measuring platform; In described pendulum, be provided with a transmitter, be provided with a reception controller in described measuring platform, the end face of this measuring platform is provided with the display screen being electrically connected with the output terminal that receives controller.
The above-mentioned observation device of realizing simple harmonic motion, wherein, described display screen is made up of light emitting diode matrix.
The above-mentioned observation device of realizing simple harmonic motion, wherein, described reception controller comprises the receiving circuit, a comparator circuit, a control circuit and the LED driving circuit that are linked in sequence, and the output terminal of described LED driving circuit is electrically connected with light emitting diode matrix.
The above-mentioned observation device of realizing simple harmonic motion, wherein, described comparator circuit is mainly made up of computing circuit.
The above-mentioned observation device of realizing simple harmonic motion, wherein, described control circuit is mainly made up of a single-chip microcomputer.
The above-mentioned observation device of realizing simple harmonic motion, wherein, described transmitter is a luminotron.
The above-mentioned observation device of realizing simple harmonic motion, wherein, described measuring platform is provided with access door.
The observation device that utilization realizes simple harmonic motion is realized the recording method of simple harmonic motion track, is characterized in, comprises the following steps:
1, pendulum is moved to any one position on measuring platform, then decontrol and allow it freely swing;
2, pendulum transmitter on it in swing process constantly transmits to the reception controller in measuring platform;
3, the receiving circuit that receives controller is followed the tracks of the signal that receives transmitter transmitting on pendulum, and this signal is outputed to comparator circuit;
4, comparator circuit gathers the signal of receiving circuit output in good time, and changing value is outputed to control circuit;
5,, in the time that control circuit receives the high level " 1 " of comparator circuit output, this control circuit converts " 1 " value to the high level that drives light emitting diode work, makes lumination of light emitting diode;
6, described light emitting diode has formed the movement locus that records this pendulum.
The observation device that above-mentioned utilization realizes simple harmonic motion is realized the recording method of simple harmonic motion track, and wherein, the signal of described transmitter transmitting is the linear high light that is greater than 400MCD; Photoresistance in this strong illumination comparator circuit, allows the resistance of photoresistance change, and comparator circuit gathers changing value in good time, and will collect high level " 1 " value and output to control circuit.
The observation device that above-mentioned utilization realizes simple harmonic motion is realized the recording method of simple harmonic motion track; wherein; the movement locus of a complete cycle of the every motion of described pendulum can continue to show in LED display, the track removing that can lumination of light emitting diode be consisted of Protection Counter Functions.
Because the present invention has adopted above technical scheme, arrange a measuring platform, the table top of measuring platform is made up of LED display; Above measuring platform, one of center position vertical hanging has comprised the rope pendulum of pendulum, and pendulum is provided with transmitter, is provided with reception controller in measuring platform.Pendulum is moved to the position on any one inspection surface by observer, then decontrols and allow it freely swing, and can record the running orbit of pendulum in the LED display under pendulum.The running orbit of each complete cycle can continue demonstration in LED display, and observer can remove track by Protection Counter Functions.Thereby observer can observe by repeating demonstration laws of motion and the nonrepeatability of pendulum.
In addition, adopt round LED display screen as display, 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 the problem that existing liquid crystal or plasma display are difficult to make larger circle.
Accompanying drawing explanation
Concrete structure of the present invention is further provided by following embodiment and accompanying drawing thereof.
Fig. 1 is the one-piece construction schematic 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 that the present invention realizes the electrical block diagram that receives controller in the observation device of simple harmonic motion.
Fig. 5 is the circuit theory diagrams that the present invention receives controller.
Fig. 6 is workflow diagram of the present invention.
Embodiment
The present invention is by the movement locus of electronic induction technical notes cycle pendulum, and by the analysis to trace image, guiding observer understands the basic law of pendulum, thereby further understands Foucault pendulum, physical pendulum, the characteristic of various pendulum such as rock and application producing, in life.
Refer to Fig. 1, Fig. 2, wherein Fig. 1 is one-piece construction schematic 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 end tie up on 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 up of light emitting diode matrix.In measuring platform 4, be provided with a reception controller 43, 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.In the present embodiment, LED display of the present invention is circular display screen.
Refer to 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 housing, and the bottom of housing is provided with a through hole 33, is provided with a transmitter 34 in described through hole 33, and described transmitter 34 is luminotrons.At the coated one deck soft plastic 35 in the outside of housing.Be provided with the connecting portion 36 being connected with rope at the top of housing
Refer to Fig. 4, Fig. 4 is that the present invention realizes the electrical block diagram that receives controller in the observation device of simple harmonic motion.Reception controller 43 described in the utility model comprises the receiving circuit 431, a comparator circuit 432, a control circuit 433 and the LED driving circuit 434 that are linked in sequence, and the output terminal of described LED driving circuit is electrically connected with light emitting diode matrix.
Refer to Fig. 5, Fig. 5 is the circuit theory diagrams that the present invention receives controller.Comparator circuit of the present invention is mainly made up of computing circuit.Described control circuit is mainly made up of a single-chip microcomputer.
Refer to Fig. 6, Fig. 6 is workflow diagram of the present invention.When observation, then observer's pull-up pendulum puts down, and watches the running orbit in LED display.The observation device that utilization of the present invention realizes simple harmonic motion is realized the recording method of simple harmonic motion track, comprises the following steps:
The receiving circuit of step 3, reception controller is followed the tracks of the signal that receives transmitter transmitting on pendulum, and this signal is outputed to comparator circuit;
Step 5, in the time that control circuit receives the high level " 1 " of comparator circuit output, this control circuit will " 1 " value converts the high level of driving light emitting diode work, light emitting diode continuous luminous a period of time to;
The luminous point that step 6, described light emitting diode send has formed the movement locus that records this pendulum.This movement locus can continue to show in LED display, until observer removes track by Protection Counter Functions
The present invention, by electronic induction pendulum tracking technique, makes observation and records pendular motion method easy, directly perceived.
Claims (9)
1. the observation device of realizing simple harmonic motion, is characterized in that, comprises a cross bar, a rope, a pendulum, a measuring platform; Described rope one end ties up on cross bar, and the other end connects pendulum; Described pendulum is suspended on the top of described measuring platform; In described pendulum, be provided with a transmitter, be provided with a reception controller in described measuring platform, the end face of this measuring platform is provided with the display screen being electrically connected with the output terminal that receives controller;
Described display screen is made up of light emitting diode matrix;
Described reception controller comprises the receiving circuit, a comparator circuit, a control circuit and the LED driving circuit that are linked in sequence, and the output terminal of described LED driving circuit is electrically connected with the light emitting diode matrix of display screen;
Pendulum transmitter on it in swing process constantly transmits to the reception controller in measuring platform;
The receiving circuit that receives controller is followed the tracks of the signal that receives transmitter transmitting on pendulum, and this signal is outputed to comparator circuit;
Comparator circuit gathers the signal of receiving circuit output in good time, and changing value is outputed to control circuit;
In the time that control circuit receives the high level " 1 " of comparator circuit output, this control circuit converts " 1 " value to the high level that drives light emitting diode work, makes lumination of light emitting diode.
2. the observation device of realizing simple harmonic motion according to claim 1, is characterized in that, described measuring platform is rounded, and described display screen is also rounded.
3. the observation device of realizing simple harmonic motion according to claim 1, is characterized in that, described comparator circuit is mainly made up of computing circuit.
4. the observation device of realizing simple harmonic motion according to claim 1, is characterized in that, described control circuit is mainly made up of a single-chip microcomputer.
5. the observation device of realizing simple harmonic motion according to claim 1, is characterized in that, described transmitter is a luminotron.
6. the observation device of realizing simple harmonic motion according to claim 1, is characterized in that, described measuring platform is provided with access door.
7. utilize the observation device of realizing simple harmonic motion to realize the recording method of simple harmonic motion track, it is characterized in that, this observation device of realizing simple harmonic motion comprises a cross bar, a rope, a pendulum and a measuring platform; Described rope one end ties up on cross bar, and the other end connects pendulum; Described pendulum is suspended on the top of described measuring platform; In described pendulum, be provided with a transmitter, be provided with a reception controller in described measuring platform, the end face of this measuring platform is provided with the display screen being electrically connected with the output terminal that receives controller, and described display screen is made up of light emitting diode matrix; The recording method that the observation device that this utilization realizes simple harmonic motion is realized simple harmonic motion track comprises the following steps:
7-1, pendulum is moved to any one position on measuring platform, then decontrol and allow it freely swing;
7-2, the pendulum transmitter on it in swing process constantly transmits to the reception controller in measuring platform;
The receiving circuit of 7-3, reception controller is followed the tracks of the signal that receives transmitter transmitting on pendulum, and this signal is outputed to comparator circuit;
7-4, comparator circuit gather the signal of receiving circuit output in good time, and changing value is outputed to control circuit;
7-5, in the time that control circuit receives the high level " 1 " of comparator circuit output, this control circuit will " 1 " value converts the high level of the light emitting diode work of the described light emitting diode matrix of driving to, makes lumination of light emitting diode;
7-6, described lumination of light emitting diode have formed the movement locus that records this pendulum.
8. the observation device that utilization according to claim 7 realizes simple harmonic motion is realized the recording method of simple harmonic motion track, it is characterized in that, the signal of the transmitter transmitting described in step 7-2 is the linear high light that is greater than 400MCD; Photoresistance in this strong illumination comparator circuit, allows the resistance of photoresistance change, and comparator circuit gathers changing value in good time, and will collect high level " 1 " value and output to control circuit.
9. the observation device that utilization according to claim 7 realizes simple harmonic motion is realized the recording method of simple harmonic motion track; it is characterized in that; the movement locus of a complete cycle of the every motion of described pendulum can continue to show in LED display, the track removing that can lumination of light emitting diode be consisted of 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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| 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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| CN102236992A CN102236992A (en) | 2011-11-09 |
| CN102236992B true CN102236992B (en) | 2014-06-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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)
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| 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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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 |
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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》.2007,第14卷(第2期), * |
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