CN2187821Y - Normal vibration curve display instrument - Google Patents
Normal vibration curve display instrument Download PDFInfo
- Publication number
- CN2187821Y CN2187821Y CN 94224110 CN94224110U CN2187821Y CN 2187821 Y CN2187821 Y CN 2187821Y CN 94224110 CN94224110 CN 94224110 CN 94224110 U CN94224110 U CN 94224110U CN 2187821 Y CN2187821 Y CN 2187821Y
- Authority
- CN
- China
- Prior art keywords
- guide rail
- simple harmonic
- line
- harmonic oscillation
- bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The utility model relates to a demonstrating instrument for the curve of simple harmonic vibration. A toothed rack 3 and a connecting rod 1 can respectively drive a vibrator 10 to carry out the simple harmonic vibration and the uniform motion in a straight line. After two motions are combined, the standard curve of the simple harmonic vibration is available. The period, the amplitude and the initial phase of the curve all can be adjusted. The utility model can be used for the teaching of physics in middle schools, and can also be used for the teaching of physics and trigonometry in universities.
Description
The utility model relates to a kind of instruments used for education, particularly a kind of simple harmonic oscillation figure line demonstrator.Also can be described as the plotting apparatus of a kind of sine or cosine figure line.
Demonstration teaching aid about the simple harmonic oscillation figure line, existing now many, these demonstrators mostly possess two cover kinematic systems, and a cover is the Harmonic Vibration System of pen, another set of is the linear uniform motion system of paper, two cover systems move simultaneously, can obtain the figure line of simple harmonic oscillation, and this teaching aid has 2 deficiencies, at first, have only and two cover kinematic systems to cooperate quite accurately, just can obtain the simple harmonic oscillation figure line of standard, and this point is difficult to realize; Secondly, utilize the resulting figure line of above-mentioned demonstrator, just perception ground is illustrated in the sine of simple harmonic oscillation figure line or cosine in face of the student, can only observe the size in amplitude and cycle on scheme, but can't judge the size of initial phase, let alone the adjustability of amplitude, cycle, initial phase, therefore, above-mentioned teaching aid can only be used for the teaching of middle school physics, and can not be used for College Physics and trigonometric teaching.
One of the purpose of this utility model is will overcome in the prior art, owing to two cover kinematic systems cooperate out of true to cause the non-type shortcoming of figure line to design a kind of simple harmonic oscillation figure line demonstrator that can accurately map.
Another purpose of the present utility model is will overcome the shortcoming that prior art can not complete embodiment simple harmonic oscillation three elements and design a kind of three elements fully can being illustrated in face of the student, and makes it adjustable simple harmonic oscillation figure line demonstrator.
The utility model is to realize above-mentioned purpose as follows.The utility model has been cancelled the kinematic system of paper, has kept the kinematic system of pen.The motion of pen is driven by sliding bar 1 and tooth bar 3.When sliding bar 1 slides on main guide rail 2, promptly drive nib 11 and do linear uniform motion, meanwhile, tooth bar 3 drives the gear 5 at sliding bar two ends, gear 5 drives nib 11 by phase place bar 7 and link rod 8 again and does simple harmonic oscillation, synthesizing of two motions can be the simple harmonic oscillation figure line that obtains a standard on the paper at drawing board 13 just, just sinusoidal line or cosine line.Say especially, no matter sliding bar 1 is a uniform motion on main guide rail 2, or variable motion, its figure line all will be the sinusoidal line or the cosine line of standard.By adjustment, can obtain the different simple harmonic oscillation figure line of cycle, initial phase and amplitude to tooth bar 3, phase place bar 7 and link rod 8.
Below in conjunction with accompanying drawing the utility model is described further.
Fig. 1 the utility model structural drawing
A-A view among Fig. 2 Fig. 1
Among the figure: 1. sliding bar, 2. main guide rail, 3. tooth bar, 4. main support, 5. gear heap, 6. index dial, 7. phase place bar, 8. link rod, 9. pair support, 10. oscillator, 11. nibs, 12. pairs of guide rails, 13. drawing boards, 14. belt pulleys, 15. handles, 16. nuts.
The utility model has the advantage of:
1. simple to operate, need only slowly spur sliding bar 1, can obtain at drawing board the simple harmonic oscillation figure line of a width of cloth standard.
2. cycle, initial phase, the amplitude of vibration figure line are adjustable, by the adjustment to the vibration three elements, can greatly improve the student to the degree of understanding of vibration three elements.
3. this teaching aid is not only applicable to the teaching of Middle School Physics, and is applicable to College Physics and trigonometric teaching, and it is physical teaching aid, is again mathematics teaching aid, and as seen its scope of application is very wide.
Claims (6)
1, the utility model relates to a kind of teaching aid, particularly a kind of simple harmonic oscillation figure line demonstrator, and this demonstrator is made up of main guide rail 2, main support 4, tooth bar 3 and sliding bar 1, it is characterized in that sliding bar 1 and main guide rail 2 are slidingly connected, and main guide rail parallels with tooth bar.
2, simple harmonic oscillation figure line demonstrator according to claim 1, the two ends that it is characterized in that sliding bar 1 have gear heap 5, index dial 6 are arranged below the gear heap 5, along index dial 6 phase place bar 7 radially arranged, the two phase place bar is linked by link rod 8.
3, simple harmonic oscillation figure line demonstrator according to claim 1, the central authorities that it is characterized in that sliding bar 1 are by having the guide rail 12 of paying on nut 16 connection pair supports 9, pair support, and paying on the guide rail has oscillator 10.
4, according to claim 1 and 3 described simple harmonic oscillation figure line demonstrators, it is vertical mutually with main guide rail 2 to it is characterized in that paying guide rail 12.
5,, it is characterized in that link rod 8 is guide rail shape, and it is enclosed within on the oscillator 10 according to claim 2 and 3 described simple harmonic oscillation figure line demonstrators.
6, simple harmonic oscillation figure line demonstrator according to claim 2 is characterized in that also having belt pulley 14 and handle 15 on the gear heap 5.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 94224110 CN2187821Y (en) | 1994-07-11 | 1994-07-11 | Normal vibration curve display instrument |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 94224110 CN2187821Y (en) | 1994-07-11 | 1994-07-11 | Normal vibration curve display instrument |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2187821Y true CN2187821Y (en) | 1995-01-18 |
Family
ID=33837612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 94224110 Expired - Fee Related CN2187821Y (en) | 1994-07-11 | 1994-07-11 | Normal vibration curve display instrument |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2187821Y (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103837224A (en) * | 2014-03-06 | 2014-06-04 | 鞍钢股份有限公司 | Simple amplitude measuring device and using method thereof |
CN109147495A (en) * | 2018-09-27 | 2019-01-04 | 莆田学院 | The teaching demonstration device and application method for approaching sawtooth wave are gradually superimposed with sine wave |
CN112857799A (en) * | 2021-02-25 | 2021-05-28 | 湖南省水利投地方电力有限公司 | Pumped storage unit shafting vibration acquisition equipment |
CN114878135A (en) * | 2022-07-07 | 2022-08-09 | 中国航空工业集团公司沈阳空气动力研究所 | Icing wind tunnel wing type sine oscillation mechanism |
-
1994
- 1994-07-11 CN CN 94224110 patent/CN2187821Y/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103837224A (en) * | 2014-03-06 | 2014-06-04 | 鞍钢股份有限公司 | Simple amplitude measuring device and using method thereof |
CN109147495A (en) * | 2018-09-27 | 2019-01-04 | 莆田学院 | The teaching demonstration device and application method for approaching sawtooth wave are gradually superimposed with sine wave |
CN109147495B (en) * | 2018-09-27 | 2023-08-25 | 莆田学院 | Teaching demonstration device for successive superposition approximation of sawtooth wave by sine wave and use method |
CN112857799A (en) * | 2021-02-25 | 2021-05-28 | 湖南省水利投地方电力有限公司 | Pumped storage unit shafting vibration acquisition equipment |
CN114878135A (en) * | 2022-07-07 | 2022-08-09 | 中国航空工业集团公司沈阳空气动力研究所 | Icing wind tunnel wing type sine oscillation mechanism |
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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 |