CN201210359Y - Infrared single pendulum demonstration apparatus - Google Patents
Infrared single pendulum demonstration apparatus Download PDFInfo
- Publication number
- CN201210359Y CN201210359Y CNU2008200218478U CN200820021847U CN201210359Y CN 201210359 Y CN201210359 Y CN 201210359Y CN U2008200218478 U CNU2008200218478 U CN U2008200218478U CN 200820021847 U CN200820021847 U CN 200820021847U CN 201210359 Y CN201210359 Y CN 201210359Y
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- bearing
- pendulum
- infrared single
- casing
- single pendulum
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Abstract
The utility model relates to an infrared single pendulum demonstration device, comprising a case body, an height adjustable support, a replaceable pendulum mass and a bearing, the case body is disposed on the height adjustable support, the upper part of the case body is disposed with a power switch, the side surface of fore part of the case body is disposed with the bearing, dial, unilateral sensor, count accumulator, timing stop watch, buzzer and illumination group, the replaceable pendulum mass is connected with the bearing via the cycloid. The utility model has simple structure, use convenience and low costs, capable of recording pendulum times; it can be used as teaching demonstration tool, also be used by student for practical operation with direct effect, being helpful to knowledge comprehension of student.
Description
Technical field
The utility model relates to a kind of teaching aid, is a kind of infrared single pendulum apparatus for demonstrating specifically.
Background technology
All having in primary school, junior middle school, senior middle school about the relevant knowledge of simple harmonic motion to relate to, is the initial period of knowledge learning.About the principle of pendulum swing can only be by the teacher tell about or by its open-and-shut experiment checking conclusion roughly.Also do not have a kind of more directly perceived, the image device be illustrated.Understand for the more weak classmate of some imagination and to have brought many troubles.
Summary of the invention
The utility model provides a kind of simple in structure, easy to use, with low cost at above-mentioned the deficiencies in the prior art, can note the infrared single pendulum apparatus for demonstrating of number of oscillations.
The purpose of this utility model is to adopt following technical proposals to realize:
Infrared single pendulum apparatus for demonstrating, comprise casing, adjustment height support, replaceable pendulum, bearing, casing is arranged on the adjustment height support, casing top is provided with power switch, the anterior side of casing is provided with bearing, index dial, unidirectional transducer, counting totalizer, Chronograph, hummer and luminous group, and replaceable pendulum is connected with bearing by cycloid.
Described unidirectional transducer is positioned at the center of the anterior side of casing.
Described bearing is positioned at the top of unidirectional transducer.
Described power switch, unidirectional transducer, counting totalizer, Chronograph, hummer and loop of luminous group of composition, wherein, counting totalizer, hummer and luminous group of parallel connection.
Described luminous group is at least one diode.
During use, with unidirectional transducer as for the casing center, fixing bearing up, the cycloid that connects adjustable length on the bearing, in the process of cycloid and pendulum swing, cycloid has intercepted the photosensitive head of unidirectional transducer, so the frequency that unidirectional transducer is swung with cycloid provides continuous signal to totalizer, the signal that totalizer will be swung each time all adds up, and by display the number of times that adds up is presented.In the process that adds up, hummer in parallel with totalizer and light emitting diode also send prompt tone and glory by frequency, the prompting hunting frequency, in presentation process, carry out repeated experiments by length of regulating swing arm and the weight of changing pendulum, utilize the sense of hearing and its synchronism of visual determination of student, by between numerical value and the timing of stopwatch institute on the contrast totalizer, it is relevant with what to draw single pendulum swing speed speed at last.
The utility model is simple to operate, and is easy to use, both can be used as teaching aid and demonstrate to the student, also can be as learning aid directly by student oneself operation that experimentizes, and visual and understandable, the student is understood knowledge played help.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a circuit diagram of the present utility model.
Wherein: 1, casing, 2, the adjustment height support, 3, replaceable pendulum, 4, bearing, 5, power switch, 6, index dial, 7, unidirectional transducer, 8, the counting totalizer, 9, Chronograph, 10, hummer, 11, luminous group.
Embodiment
As shown in Figure 1, casing 1 is arranged on the adjustment height support 2, casing 1 top is provided with power switch 5, casing 1 anterior side is provided with bearing 4, index dial 6, unidirectional transducer 7, counting totalizer 8, Chronograph 9, hummer 10 and luminous group 11, and replaceable pendulum 3 is connected with bearing 4 by cycloid.
As shown in Figure 2, power switch 5, unidirectional transducer 7, counting totalizer 8, Chronograph 9, hummer 10 and loop of luminous group 11 composition, wherein, counting totalizer 8, hummer 10 and luminous group 11 parallel connection.
During use, unidirectional transducer 7 is placed casing 1 center, fixing bearing 4 up, the cycloid that connects adjustable length on the bearing 4, in the process of cycloid and pendulum swing, cycloid has intercepted the photosensitive head of unidirectional transducer 7, so unidirectional transducer 7 provides continuous signal for counting totalizer 8 with the frequency of cycloid swing, the signal that counting totalizer 8 will be swung each time all adds up, and by display the number of times that adds up is presented.In the process that adds up, hummer 10 and the light emitting diode in parallel with counting totalizer 8 also send prompt tone and glory by frequency, and the prompting hunting frequency in presentation process, is carried out repeated experiments by length of regulating cycloid and the weight of changing pendulum 3.Have advantages such as simple in structure, easy to use, with low cost.
Claims (5)
1. infrared single pendulum apparatus for demonstrating, comprise casing, adjustment height support, replaceable pendulum, bearing, it is characterized in that, casing is arranged on the adjustment height support, casing top is provided with power switch, the anterior side of casing is provided with bearing, index dial, unidirectional transducer, counting totalizer, Chronograph, hummer and luminous group, and replaceable pendulum is connected with bearing by cycloid.
2. infrared single pendulum apparatus for demonstrating according to claim 1 is characterized in that, described unidirectional transducer is positioned at the center of the anterior side of casing.
3. infrared single pendulum apparatus for demonstrating according to claim 1 is characterized in that described bearing is positioned at the top of unidirectional transducer.
4. infrared single pendulum apparatus for demonstrating according to claim 1, it is characterized in that, described power switch, unidirectional transducer, counting totalizer, Chronograph, hummer and loop of luminous group of composition, wherein, counting totalizer, hummer and luminous group of parallel connection.
5. according to claim 1 or 4 described infrared single pendulum apparatus for demonstrating, it is characterized in that described luminous group is at least one diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200218478U CN201210359Y (en) | 2008-05-06 | 2008-05-06 | Infrared single pendulum demonstration apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200218478U CN201210359Y (en) | 2008-05-06 | 2008-05-06 | Infrared single pendulum demonstration apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201210359Y true CN201210359Y (en) | 2009-03-18 |
Family
ID=40481097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200218478U Expired - Fee Related CN201210359Y (en) | 2008-05-06 | 2008-05-06 | Infrared single pendulum demonstration apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201210359Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102236992A (en) * | 2010-05-06 | 2011-11-09 | 上海科技馆 | Observation device of simple pendulum movement and record method of simple pendulum movement track |
| CN102305997A (en) * | 2011-09-03 | 2012-01-04 | 四川大学 | Ultralight light-blocking cylinder with simple pendulum |
| CN104751703A (en) * | 2013-12-31 | 2015-07-01 | 上海数好数字信息科技有限公司 | Electronic simple pendulum presentation device |
| CN107564375A (en) * | 2017-08-17 | 2018-01-09 | 夏晓东 | A kind of method and circuit of the systematic error for eliminating period of single pendulum measurement |
| CN109637295A (en) * | 2018-12-04 | 2019-04-16 | 魏公望 | One kind probing into pendulosity experiment pallet |
-
2008
- 2008-05-06 CN CNU2008200218478U patent/CN201210359Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102236992A (en) * | 2010-05-06 | 2011-11-09 | 上海科技馆 | Observation device of simple pendulum movement and record method of simple pendulum movement track |
| CN102236992B (en) * | 2010-05-06 | 2014-06-25 | 上海科技馆 | Observation device of simple pendulum movement and record method of simple pendulum movement track |
| CN102305997A (en) * | 2011-09-03 | 2012-01-04 | 四川大学 | Ultralight light-blocking cylinder with simple pendulum |
| CN102305997B (en) * | 2011-09-03 | 2012-12-05 | 四川大学 | Ultralight light-blocking cylinder with simple pendulum |
| CN104751703A (en) * | 2013-12-31 | 2015-07-01 | 上海数好数字信息科技有限公司 | Electronic simple pendulum presentation device |
| CN107564375A (en) * | 2017-08-17 | 2018-01-09 | 夏晓东 | A kind of method and circuit of the systematic error for eliminating period of single pendulum measurement |
| CN109637295A (en) * | 2018-12-04 | 2019-04-16 | 魏公望 | One kind probing into pendulosity experiment pallet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090318 Termination date: 20100506 |