CN2123799U - Simple vibration picture instrument - Google Patents
Simple vibration picture instrument Download PDFInfo
- Publication number
- CN2123799U CN2123799U CN 92223716 CN92223716U CN2123799U CN 2123799 U CN2123799 U CN 2123799U CN 92223716 CN92223716 CN 92223716 CN 92223716 U CN92223716 U CN 92223716U CN 2123799 U CN2123799 U CN 2123799U
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- China
- Prior art keywords
- pendulum
- simple harmonic
- magnon
- direct current
- motor rotation
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Abstract
The utility model relates to a simple harmonic vibration picture instrument which belongs to the teaching field of physics in middle schools, mainly comprising a pendulum (magnon), a magnetic writing board, strings, a transverse rod, an upper and a lower regulating knobs, an upright post, a base, a direct current motor rotation system, etc., wherein, the direct current motor rotation system is composed of a driving wheel, a driven wheel and a rotary belt. After the utility model is assembled as required (according to indications in an attached drawing), the pendulum can do simple harmonic vibrations, and the tip of the magnon (pendulum) at the lower part can draw the complete image of a vibration curve on the magnetic writing board which is moved uniformly.
Description
The present invention is a kind of simple harmonic oscillation image instrument that relates to the physics teaching in secondary school field.
Describing of high school physics required course content " simple harmonic oscillation " image, all do not obtain satisfied solution always, the teacher who has utilizes in the central hole of beating of oscillator (pendulum) and puts on writing brush, nib dips in ink, but because contacting of nib and paper tape rubs, the image of depicting is an approximate sinusoidal vibration figure line, and the figure line plucked, poor accuracy; The teacher who has utilizes the funnel that fills fine sand to make oscillator, and the image of depicting can only be seen on the plane, dais, can not endwaysly see to the student; The teacher who has utilizes high voltage pulse, wears paper tape from the central needle point of oscillator and gets a series of point to the base discharge principle from paper tape, and the instrument and equipment that this method needs are numerous and diverse, and the pulse voltage height (15KV～25KV), cause electric shock easily, very dangerous.
Purpose of the present invention is exactly in order to overcome above-mentioned drawback, for senior middle school physics teaching provides a kind of simple in structure, and visual intuitive and accurate simple harmonic oscillation image instrument.
Describe structure of the present invention and technical application in detail below in conjunction with accompanying drawing.Fig. 1 is a side view of the present invention.
In the accompanying drawings: (1) pendulum (magnon), (2) magnetic wordpad, (3) fine rule, (4) cross bar, (5) up-down adjustment knob, (6) column, (7) base, (8) direct current motor rotation system (comprising driving wheel (9) engaged wheel, (10) rotating band).
Technical application: two isometric fine rules (3) suspend pendulum (oscillator) (1) in midair as shown in the figure, the upper end of fine rule is fixed on the cross bar (4), again another cross bar is clipped on the column (6) of support by up-down adjustment knob (5), so just becomes a bifilar pendulum; An also available fine rule hangs pendulum, single line pendulum.Pendulum length is regulated at will as required, magnetic wordpad (2) is placed on the rotating band of base (10), make the axis XX ' that draws in advance on the plate vertical with the direction of vibration of pendulum, and be in just under the equilibrium position of pendulum, adjusting knob (5) changes the height of pendulum, make the about 0.5～1mm of pendulum bottom distance between two tips magnetic wordpad, then pendulum is left 3～3.5cm to a layback of equilibrium position, do simple harmonic oscillation from static release, small size motor is received on the suitable low-voltage dc power supply, small size motor drives engaged wheel by belt pulley (9) and rotates, thereby make the speed uniform motion of magnetic wordpad with 5～6cm/S, at this moment the most advanced and sophisticated oscillating curve (front of just on the magnetic wordpad that moves, drawing, the bottom of magnon (pendulum), reverse side all has, the reverse side visibility is better), can demonstrate the sinusoidal curve figure line of a plurality of complete cycles like this.
Obviously, the present invention is simple in structure, the accuracy height, and intuitive is strong, is a kind of simple harmonic oscillation image instrument that is worthy to be popularized.
Claims (4)
1, a kind of simple harmonic oscillation image instrument that relates to the physics teaching in secondary school field, it (being comprised: driving wheel by (1) pendulum (magnon) (2) magnetic wordpad (3) fine rule (4) cross bar (5) up-down adjustment knob (6) column (7) base (8) direct current motor rotation system, (9) engaged wheel (10) rotating band), form, its technical characterictic is: two isometric fine rules (3) suspention pendulum (1), the upper end is fixed on the cross bar (4), magnetic wordpad (2) be placed on pendulum (1) under, on rotating band (10).
2, as described in the claim item 1, wherein also available one of fine rule is made single pendulum.
3, connecing according to claim 1,2 described simple harmonic oscillation instruments wherein 1---pendulum is made with magnetic material, and 2---make with magnetic wordpad.
4, as described in the claim item 3, wherein the also available electromagnet of pendulum is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92223716 CN2123799U (en) | 1992-05-28 | 1992-05-28 | Simple vibration picture instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92223716 CN2123799U (en) | 1992-05-28 | 1992-05-28 | Simple vibration picture instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2123799U true CN2123799U (en) | 1992-12-02 |
Family
ID=4966344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92223716 Granted CN2123799U (en) | 1992-05-28 | 1992-05-28 | Simple vibration picture instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2123799U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102622929A (en) * | 2012-03-13 | 2012-08-01 | 西华师范大学 | Multifunctional simple harmonic vibration demonstrator |
| CN107067901A (en) * | 2017-06-09 | 2017-08-18 | 李源潮 | A kind of Physical Experiment single pendulum demonstration apparatus |
-
1992
- 1992-05-28 CN CN 92223716 patent/CN2123799U/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102622929A (en) * | 2012-03-13 | 2012-08-01 | 西华师范大学 | Multifunctional simple harmonic vibration demonstrator |
| CN102622929B (en) * | 2012-03-13 | 2014-03-26 | 西华师范大学 | Multifunctional simple harmonic vibration demonstrator |
| CN107067901A (en) * | 2017-06-09 | 2017-08-18 | 李源潮 | A kind of Physical Experiment single pendulum demonstration apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |