CN2465259Y - Body straight line movement demonstrator - Google Patents
Body straight line movement demonstrator Download PDFInfo
- Publication number
- CN2465259Y CN2465259Y CN 01207134 CN01207134U CN2465259Y CN 2465259 Y CN2465259 Y CN 2465259Y CN 01207134 CN01207134 CN 01207134 CN 01207134 U CN01207134 U CN 01207134U CN 2465259 Y CN2465259 Y CN 2465259Y
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- Prior art keywords
- circuit
- motor
- tapper
- dolly
- desktop
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- Expired - Fee Related
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Abstract
The utility model discloses an object rectilinear motion demonstrator. A rectangle table top is laid with two parallel guide tracks. A carrier which can move along the guide tracks and is provided with metal wheels is arranged on the guide tracks. The carrier is provided with an electromagnetic dotting device. The back side of the table top is provided with a distance scale plate which is vertical with the table top and is provided with scales, and the distance scale plate is convenient for the electromagnetic dotting device to dot on the distance scale plate. The front side of the table top is inlaid with a numerical code display window. The lower side of the table top is provided with a control box which is provided with a control panel. A motor, a speed changer and a control circuit are arranged in the control box. Owing to the structure of the utility model, movement tracks can be displayed on the distance scale plate when objects carry out the rectilinear motion of uniform speed, uniform acceleration and uniform deceleration in unit time, and the movement tracks are intuitional and visual.
Description
The utility model relates to a kind of physical experiment apparatus, the straight-line instrument of particularly a kind of demonstration object.
The rectilinear motion of object is the important content in the physics textbook of middle school, and when learning this partial content, owing to lack the experimental apparatus of this respect, the student lacks understanding intuitively to speed, time, distance triadic relation, to this, is badly in need of the experimental apparatus of development this respect.
The purpose of this utility model is exactly at the straight-line instrument problem of shortage demonstration object, and a kind of object linear movement demonstration instrument of development.
The purpose of this utility model is to realize like this, described demonstrator is to lay two parallel guide rails on a rectangle desktop, have on the guide rail one can be along the dolly that has metal wheel of guide rail movement, dolly is provided with the electromagnetism tapper, be provided with one and have scale in that the rear side of desktop is vertical with desktop, be convenient to the distance scaleplate that the electromagnetism tapper is got ready in the above, the front side of desktop is embedded with digital display window, desktop has the control box of a band control panel, a third gear switch button is arranged on the described control panel, reset button and start button are provided with motor in the control box, variator and clock show, the electromagnetism tapper, the forms of motion control circuit.
Described clock display circuit, adopt clock circuit CD4060.CD4518 to produce accurate pulse per second (PPS), this pulse signal enters counting circuit CD4017 through start button, decoding output terminal Q0-Q9 of CD4017 exported high level successively every one second, this high level makes triode BG0-BG9 conducting respectively, and corresponding charactron shows time numerical value.
Described electromagnetism tapper circuit, the high level of CD4017 output terminal Q1-Q9 output is got the pulse upper edge through capacitor C 1-C9 and resistance R 1-R9, makes triode BG10 conducting electromagnet attract tapper to get ready through Schmidt circuit and second tube sheet current-limiting resistance R10.
Described forms of motion control circuit, when output terminal Q1-Q9 of CD4017 exports high level successively, this circuit is powered by triode BG11, when third gear switch places even acceleration position 1, electric current charges to capacitor C 10 by resistance R 11, at this moment the voltage at motor two ends increases, and rotating speed is also accelerated, and dolly is done uniformly accelerated motion.When third gear switch places even decelerate position I, electric current by BG13 resistance R 12 to the electric capacity charging, along with the voltage at capacitor C 11 two ends raises, the equivalent resistance of three plate pipe BG13 increases, triode BG12 makes the voltage decreases at motor two ends, and rotating speed of motor diminishes, and dolly is done uniformly retarded motion.When third gear switch placed at the uniform velocity position III, the voltage constant at motor two ends was constant, and the rotating speed of motor size is constant, and dolly is made uniform motion.
Described digital display window shows 0123456789 from left to right successively, to show the time of object of which movement.
Owing to adopt said structure, object in the unit interval, carry out at the uniform velocity, the track that evenly quickens, move during even deceleration rectilinear motion shows on the distance scaleplate, and is more directly perceived, vivid.
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing
Fig. 1 demonstrator synoptic diagram
Fig. 2 desktop planimetric map
Fig. 3 circuit diagram
Among the figure: 1, electromagnetism tapper 2, time showing window 3, control panel 4, reset button 5, start button 6, third gear switch 7, distance scaleplate, 8, perforation belt 9, dolly 10, desktop 11, metal guide rail
On rectangle desktop 10, assist and establishing two parallel metal guide rail 11, a dolly that has metal wheel 9 that can move along metal guide rail 11 is arranged on the metal guide rail 11, dolly 9 is provided with electromagnetism tapper 1, be provided with one and have scale in that the rear side of desktop 10 and desktop 10 are vertical, be convenient to the distance scaleplate 7 that electromagnetism tapper 1 is got ready in the above, the front side of desktop 10 is embedded with digital display window 2, desktop has the control box of a band control panel 3, a third gear switch button 6 is arranged on the control panel 3, reset button 4 and start button 5 are provided with motor gear box device and clock and show in the control box, the electromagnetism tapper, the forms of motion control circuit.The clock display circuit, adopt clock circuit CD4060.CD4518 to produce accurate pulse per second (PPS), this pulse signal enters counting circuit CD4017 through start button, the defeated industry of the decoding of CD4017 held Q0-Q9 to export high level successively every one second, this high level makes triode BG0-BG9 conducting respectively, and corresponding charactron shows time numerical value.Electromagnetism tapper circuit, the high level of CD4017 output terminal Q1-Q9 output is got the pulse upper edge through capacitor C 1-C9 and resistance R 1-R9, makes triode BG10 conducting electromagnet attract tapper to get ready through Schmidt circuit and diode current-limiting resistance R10.The forms of motion control circuit, when output terminal Q1-Q9 of CD4017 exports high level successively, this circuit is powered by triode BG11, third gear switch 6 places to be spared when quickening position I, electric current charges to capacitor C 10 by resistance R 11, at this moment the voltage at motor two ends increases, and rotating speed is also accelerated, and dolly is done uniformly accelerated motion.When third gear switch 6 places even decelerate position II, electric current by BG13 resistance R 12 to the electric capacity charging, along with the voltage at capacitor C 11 two ends raises, the equivalent resistance of three plate pipe BG13 increases, triode BG12 makes the voltage decreases at motor two ends, and rotating speed of motor diminishes, and dolly is done uniformly retarded motion.When third gear switch 6 placed at the uniform velocity position III, the voltage constant at motor two ends was constant, and the rotating speed of motor size is constant, and dolly is made uniform motion.
Claims (5)
1, a kind of object linear movement demonstration instrument, it is characterized in that this demonstrator is to lay two parallel guide rails on a rectangle desktop, have on the guide rail one can be along the dolly that has metal wheel of guide rail movement, dolly is provided with the electromagnetism tapper, be provided with one and have scale in that the rear side of desktop is vertical with desktop, be convenient to the distance scaleplate that the electromagnetism tapper is got ready in the above, the front side of desktop is embedded with digital display window, desktop has the control box of a band control panel, a third gear switch button is arranged on the described control panel, reset button and start button are provided with motor in the control box, variator and clock show, the electromagnetism tapper, the forms of motion control circuit.
2, object linear movement demonstration instrument according to claim 1, it is characterized in that the clock display circuit, adopt clock circuit CD4060.CD4518 to produce accurate pulse per second (PPS), this pulse signal enters counting circuit CD4017 through start button, decoding output terminal Q0-Q9 of CD4017 exported high level successively every one second, this high level makes triode BG0-BG9 conducting respectively, and corresponding charactron shows time numerical value.
3, object linear movement demonstration instrument according to claim 1, it is characterized in that electromagnetism tapper circuit, the high level of CD4017 output terminal Q1-Q9 output, get the pulse upper edge through capacitor C 1-C9 and resistance R 1-R9, make triode BG10 conducting electromagnet attract tapper to get ready through Schmidt circuit and diode current-limiting resistance R10.
4, object linear movement demonstration instrument according to claim 1, it is characterized in that the forms of motion control circuit, when output terminal Q1-Q9 of CD4017 exports high level successively, this circuit is powered by triode BG11, when third gear switch placed even acceleration position 1, to capacitor C 10 chargings, at this moment the voltage at motor two ends increased electric current by resistance R 11, rotating speed is also accelerated, and dolly is done uniformly accelerated motion.When third gear switch places even decelerate position II, electric current by BG13 resistance R 12 to the electric capacity charging, along with the voltage at capacitor C 11 two ends raises, the equivalent resistance of triode BG13 increases, triode BG12 makes the voltage decreases at motor two ends, and rotating speed of motor diminishes, and dolly is done uniformly retarded motion.When third gear switch placed at the uniform velocity position III, the voltage constant at motor two ends was constant, and the rotating speed of motor size is constant, and dolly is made uniform motion.
5, object linear movement demonstration instrument according to claim 1 is characterized in that digital display window, shows 0123456789 successively from left to right, to show the time of object of which movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01207134 CN2465259Y (en) | 2001-02-24 | 2001-02-24 | Body straight line movement demonstrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01207134 CN2465259Y (en) | 2001-02-24 | 2001-02-24 | Body straight line movement demonstrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2465259Y true CN2465259Y (en) | 2001-12-12 |
Family
ID=33627613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01207134 Expired - Fee Related CN2465259Y (en) | 2001-02-24 | 2001-02-24 | Body straight line movement demonstrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2465259Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370200A (en) * | 2016-10-11 | 2017-02-01 | 张远程 | Motion parameter measurement device of car |
| CN109036042A (en) * | 2018-08-20 | 2018-12-18 | 王帆 | A kind of teaching aid for auxiliary direction electrophysics law teaching |
-
2001
- 2001-02-24 CN CN 01207134 patent/CN2465259Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370200A (en) * | 2016-10-11 | 2017-02-01 | 张远程 | Motion parameter measurement device of car |
| CN106370200B (en) * | 2016-10-11 | 2023-08-15 | 南京南华航空产业有限公司 | Motion parameter measuring device of vehicle |
| CN109036042A (en) * | 2018-08-20 | 2018-12-18 | 王帆 | A kind of teaching aid for auxiliary direction electrophysics law teaching |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |