CN204348181U - A kind of mechanics experiment with simple pendulum instructional device - Google Patents
A kind of mechanics experiment with simple pendulum instructional device Download PDFInfo
- Publication number
- CN204348181U CN204348181U CN201520018411.3U CN201520018411U CN204348181U CN 204348181 U CN204348181 U CN 204348181U CN 201520018411 U CN201520018411 U CN 201520018411U CN 204348181 U CN204348181 U CN 204348181U
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- cycloid
- swing ball
- simple pendulum
- experiment
- instructional device
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Abstract
The utility model discloses a kind of mechanics experiment with simple pendulum instructional device, belong to simple pendulum device field, comprise support, swing ball and cycloid, wherein be provided with scale on the bracket, described swing ball is provided with link, hook is provided with in described cycloid front end, the groove box that can be used for placing different quality swing ball is provided with in the side of described frame bottom, displacement transducer is provided with in described frame bottom, institute's displacement sensors is connected with display, the utility model uses simple and convenient, ensure that the accuracy of experimental data, avoid the error that visual inspection produces, the structure of experiment is allowed more to have cogency, allow student to the awareness and understanding of experiment with simple pendulum own profound.
Description
Technical field
The utility model relates to a kind of simple pendulum device, especially a kind of mechanics experiment with simple pendulum instructional device.
Background technology
As everyone knows; in physics, the Period Formula of single pendulum is T=2 π √ (L/g); teacher at school time in order to verify that this formula just needs to test; in order to allow the result of experiment have cogency in experiment with simple pendulum; usually can adopt control variate method to test; but the variable existed in experiment with simple pendulum is many again; mainly contain the variablees such as quality, cycle, pivot angle and cycloid; bring a lot of trouble therefore to the experiment of teacher; and be all rely on the observation of naked eyes to draw in all data of experiment, therefore the accuracy of data is not high yet.
Summary of the invention
Technical assignment of the present utility model is for above the deficiencies in the prior art, and provides a kind of mechanics experiment with simple pendulum instructional device.
The utility model solves the technical scheme that its technical matters adopts: a kind of mechanics experiment with simple pendulum instructional device, comprise support, swing ball and cycloid, wherein be provided with scale on the bracket, object conveniently measures the length of cycloid, described swing ball is provided with link, hook is provided with in described cycloid front end, the swing ball of replacing different quality that in an experiment can be convenient, the groove box that can be used for placing different quality swing ball is provided with in the side of described frame bottom, displacement transducer is provided with in described frame bottom, institute's displacement sensors is connected with display, institute's displacement sensors can detect that swing ball is swinging the time needed for one-period accurately, then shown by display, make experimental result more accurate.
Slide rule is provided with at the opposite side of described support, chute is provided with in described slide rule, slide block is provided with in described chute, described slide block is provided with telescopic arm, described telescopic arm is provided with baffle plate, and be provided with at the end of described slide rule and can control the flexible control knob of described telescopic arm, drive telescopic arm and baffle plate move by the movement of slide block, the size of pivot angle can be changed when other variable of guarantee is all constant, thus realize the measurement to different pivot angle.
Be provided with runner at described cradle top, described cycloid is wrapped on described runner, is changed the length of cycloid by rotating wheel, achieves and accurately measures the cycloid under different length.
Advantage of the present utility model: can test each variable one by one according to control variate method when carrying out experiment with simple pendulum, easy to operate, and all experimental datas are all according to accurate measurements and calculations with draw, be not depend on visual inspection to obtain, the result of therefore testing has very strong cogency.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with Figure of description, the utility model is described below.
As shown in Figure 1, a kind of mechanics experiment with simple pendulum instructional device, comprise support 1, swing ball 6 and cycloid 14, wherein on described support 1, be provided with scale 2, object conveniently measures the length of cycloid 14, described swing ball 6 is provided with link 4, hook is provided with in described cycloid 14 front end, object is the swing ball 6 in order to replacing different quality that in an experiment can be convenient, side bottom described support 1 is provided with the groove box 5 that can be used for placing different quality swing ball 6, displacement transducer 3 is provided with bottom described support 1, institute's displacement sensors 3 is connected with display 7, institute's displacement sensors 3 can detect that swing ball 6 is swinging the time needed for one-period accurately, then shown by display 7, make experimental result more accurate.
Slide rule 8 is provided with at the opposite side of described support 1, chute 9 is provided with in described slide rule 8, slide block 10 is provided with in described chute 9, described slide block 10 is provided with telescopic arm 12, described telescopic arm 12 is provided with baffle plate 13, is provided with at the end of described slide rule 8 and can controls the flexible control knob 11 of described telescopic arm 12, by the movement of slide block 10, drive telescopic arm 12 and baffle plate 13 being moved together when testing, change the size of pivot angle with this, thus realize the measurement to different pivot angle.
Be provided with runner 15 at described cradle top, described cycloid 14 is wrapped on described runner 15, is changed the length of cycloid 14 by rotating wheel 15.
Its principle of work is: first swing ball 6 first time above displacement transducer 3 through out-of-date, timer in displacement transducer 3 will start timing, when swing ball 6 second time is through displacement transducer 3 display 7 will by this twice between time showing used out, this time is half period time used, by the time swing ball 6 third time is when displacement transducer 3, display 7 also can by the time showing between first time and third time out, this time is the one-period time, by the impact relatively just can ignoring air resistance in current motion process of these two times.
First the length of cycloid 14 is fixed on pretreatment, and adjust the position of slide block 10, just pivot angle size can be drawn according to Pythagorean theorem, then the swing ball changing different quality is tested, behind the position of adjusting slide block 10, the flexible of telescopic arm 12 is controlled by control knob 11, guarantee that swing ball 6 can be fixed on an angle by baffle plate 13, when starting to test, only need press control knob 11 makes telescopic arm 12 shorten, thus drive baffle plate 13 to move down, simple harmonic motion will be started after swing ball 6 loses the stop of baffle plate 13, then select same swing ball 6 by changing the distance between slide block 10 and support 1, just can change pivot angle size, then the length that runner 15 just can change cycloid 14 is adjusted again, thus realize testing the cycloid 14 of different length.
Claims (3)
1. a mechanics experiment with simple pendulum instructional device, comprise support, swing ball and cycloid, it is characterized in that: be provided with scale on the bracket, described swing ball is provided with link, hook is provided with in described cycloid front end, be provided with the groove box that can be used for placing different quality swing ball in the side of described frame bottom, be provided with displacement transducer in described frame bottom, institute's displacement sensors is connected with display.
2. mechanics experiment with simple pendulum instructional device according to claim 1, it is characterized in that: be provided with slide rule at the opposite side of described support, chute is provided with in described slide rule, slide block is provided with in described chute, described slide block is provided with telescopic arm, described telescopic arm is provided with baffle plate, is provided with at the end of described slide rule and can controls the flexible control knob of described telescopic arm.
3. mechanics experiment with simple pendulum instructional device according to claim 1 and 2, it is characterized in that: be provided with runner at described cradle top, described cycloid is wrapped on described runner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520018411.3U CN204348181U (en) | 2015-01-13 | 2015-01-13 | A kind of mechanics experiment with simple pendulum instructional device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520018411.3U CN204348181U (en) | 2015-01-13 | 2015-01-13 | A kind of mechanics experiment with simple pendulum instructional device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204348181U true CN204348181U (en) | 2015-05-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520018411.3U Expired - Fee Related CN204348181U (en) | 2015-01-13 | 2015-01-13 | A kind of mechanics experiment with simple pendulum instructional device |
Country Status (1)
| Country | Link |
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| CN (1) | CN204348181U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104867384A (en) * | 2015-06-22 | 2015-08-26 | 湖南城市学院 | Simple pendulum experiment used pendulum ball capable of achieving precise pendulum length |
| CN105931535A (en) * | 2016-07-11 | 2016-09-07 | 王效文 | Multifunctional comprehensive experiment system for physical teaching |
| CN108711347A (en) * | 2018-08-29 | 2018-10-26 | 广东海翔教育科技有限公司 | A kind of physical mechanics teaching single pendulum demonstration apparatus |
| CN110097810A (en) * | 2018-01-28 | 2019-08-06 | 怀化学院 | A kind of simple harmonic motion apparatus for demonstrating and the method for improving single pendulum stability |
| CN110377061A (en) * | 2019-06-18 | 2019-10-25 | 东北大学 | A kind of simple pendulum device and its swing fast control method |
| CN113593379A (en) * | 2021-08-15 | 2021-11-02 | 张航恺 | Simple pendulum presentation device for physics experiments |
-
2015
- 2015-01-13 CN CN201520018411.3U patent/CN204348181U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104867384A (en) * | 2015-06-22 | 2015-08-26 | 湖南城市学院 | Simple pendulum experiment used pendulum ball capable of achieving precise pendulum length |
| CN105931535A (en) * | 2016-07-11 | 2016-09-07 | 王效文 | Multifunctional comprehensive experiment system for physical teaching |
| CN105931535B (en) * | 2016-07-11 | 2018-11-13 | 潍坊科技学院 | One kind being used for physics teaching multifunctional comprehensive experimental system |
| CN110097810A (en) * | 2018-01-28 | 2019-08-06 | 怀化学院 | A kind of simple harmonic motion apparatus for demonstrating and the method for improving single pendulum stability |
| CN108711347A (en) * | 2018-08-29 | 2018-10-26 | 广东海翔教育科技有限公司 | A kind of physical mechanics teaching single pendulum demonstration apparatus |
| CN110377061A (en) * | 2019-06-18 | 2019-10-25 | 东北大学 | A kind of simple pendulum device and its swing fast control method |
| CN110377061B (en) * | 2019-06-18 | 2021-12-17 | 东北大学 | Simple pendulum device |
| CN113593379A (en) * | 2021-08-15 | 2021-11-02 | 张航恺 | Simple pendulum presentation device for physics experiments |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20160113 |