CN201449684U - Light-emitting tuning fork - Google Patents
Light-emitting tuning fork Download PDFInfo
- Publication number
- CN201449684U CN201449684U CN2009200534164U CN200920053416U CN201449684U CN 201449684 U CN201449684 U CN 201449684U CN 2009200534164 U CN2009200534164 U CN 2009200534164U CN 200920053416 U CN200920053416 U CN 200920053416U CN 201449684 U CN201449684 U CN 201449684U
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- Prior art keywords
- fork
- tuning fork
- light
- power supply
- luminous
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Abstract
The utility model discloses a light-emitting tuning fork which comprises two fork branches (1) and a fork handle (2) integrated with the fork branches (1); diodes (3) are fixed at the top ends of the fork branches (1) respectively; the diodes are communicated with a power supply (5) through conductive wires (4). The light-emitting tuning fork has the advantages of low cost and simple processing, and well solves the problem that students easily observe experimental phenomena.
Description
Technical field
The utility model relates to a kind of physics educational apparatus, specifically, relates to a kind of luminous tuning fork.
Background technology
Tuning fork is as the underlying instrument of teaching, the generation that it can demonstrating sound in teaching, the interference of sound, measures the conduction of the velocity of sound and checking sound wave.When lecturing sound transmission, be to demonstrate by the vibration of tuning fork.Yet,, only be sitting in front-seat student and can observe phenomenon because the Oscillation Amplitude of tuning fork is little.The character that the teacher who has utilizes careless ball or polyfoam ball light weight and easily wafts, with its contact tuning fork, bead is upspring, and shows tuning fork in vibration, and promptly sound is propagated in medium.But because bead is subjected to the influence of air flow easily, the amplitude that bead is upspring is little, and same being difficult for arrived by observation of students.
For these reasons, utilize tuning fork to come the lecture experiment DeGrain, the student sometimes even do not observe experimental phenomena thereby almost is helpless to the explanation of teacher to awarding knowledge, experiment content, thereby influences teaching efficiency.
Have in the prior art utilize laser pen or optical fiber probe make can be luminous tuning fork, but required expense is very high.
The utility model content
It is a kind of with low cost that the purpose of this utility model is to provide, and the luminous tuning fork that is easy to process has solved the problem that existing student is difficult for the observation experiment result.
For achieving the above object, the utility model has been taked following technical scheme:
A kind of luminous tuning fork is formed by two fork thighs with the fork handle of fork strand disjunctor.The top of described fork thigh is fixed with diode respectively, and described diode is communicated with power supply by lead.
Preferably, described power supply is three joint 1.5V dry cells; More preferably, described power supply is a button cell.
Compared with prior art, the utlity model has following beneficial effect:
1) with low cost, only need two diodes and three joint dry cells, and processing is simple;
2) diode is arranged on the place of fork strand tip vibration maximum, during vibration, formed the arc lines of a light, and Oscillation Amplitude is big more, the shadow lines of formation are long more, has solved the problem that the student is difficult for the observation experiment phenomenon well.
Description of drawings
Come the utility model is done to set forth further below in conjunction with the drawings and specific embodiments.
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model circuit diagram;
Reference numeral: 1, fork thigh; 2, fork handle; 3, diode; 4, lead; 5, power supply.
Embodiment
Below by specific embodiment the utility model is described.
Embodiment 1:
A kind of luminous tuning fork is formed by two fork thighs 1 with the fork handle 2 of fork strand 1 disjunctor.The top of described fork thigh 1 is fixed with diode 3 respectively, and described diode 3 is communicated with power supply 5 by lead 4.
Described power supply 5 is three joint 1.5V dry cells.
Luminous tuning fork luminous component is selected two diodes for use, is fixed on the top of fork thigh with immobilization material such as seccotine etc.Connect two diodes and save the power supply that the 1.5V dry cells are formed by lead by three.
Energized, led lighting, when beaing tuning fork, tuning fork produces vibration, because diode is fixed on the most tangible tuning fork of Oscillation Amplitude top, follows tuning fork and vibrates together, forms the arc shadow, and Oscillation Amplitude is big more, and the arc shadow will be big more.Like this, as long as tuning fork vibration just is easy to observe experimental phenomena, and can observes the size of amplitude.
In actual applications, because power unit is comparatively heavy, can select lighter electric supply installation for use, as button cell; Or a power switch, convenient control, also effectively using electricity wisely be set.
Claims (3)
1. a luminous tuning fork is formed by two forks strand (1) with the fork handle (2) of fork strand (1) disjunctor, and it is characterized in that: the top of described fork strand (1) is fixed with diode (3) respectively, and described (3) diode is communicated with power supply (5) by lead (4).
2. luminous tuning fork according to claim 1 is characterized in that: described power supply (5) is three joint 1.5V dry cells.
3. luminous tuning fork according to claim 1 is characterized in that: described power supply (5) is a button cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200534164U CN201449684U (en) | 2009-03-26 | 2009-03-26 | Light-emitting tuning fork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200534164U CN201449684U (en) | 2009-03-26 | 2009-03-26 | Light-emitting tuning fork |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201449684U true CN201449684U (en) | 2010-05-05 |
Family
ID=42554407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200534164U Expired - Fee Related CN201449684U (en) | 2009-03-26 | 2009-03-26 | Light-emitting tuning fork |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201449684U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102610144A (en) * | 2012-01-31 | 2012-07-25 | 刘海洋 | Experimental box for transmitting sound |
-
2009
- 2009-03-26 CN CN2009200534164U patent/CN201449684U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102610144A (en) * | 2012-01-31 | 2012-07-25 | 刘海洋 | Experimental box for transmitting sound |
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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: 20100505 Termination date: 20170326 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |