CN105206145B - One kind claps generator - Google Patents
One kind claps generator Download PDFInfo
- Publication number
- CN105206145B CN105206145B CN201510704623.1A CN201510704623A CN105206145B CN 105206145 B CN105206145 B CN 105206145B CN 201510704623 A CN201510704623 A CN 201510704623A CN 105206145 B CN105206145 B CN 105206145B
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- CN
- China
- Prior art keywords
- resistance
- operational amplifier
- adjustable resistance
- generator
- loudspeaker
- 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.)
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/14—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for acoustics
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Optimization (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Algebra (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- Business, Economics & Management (AREA)
- Acoustics & Sound (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The invention discloses one kind to clap generator, and the present invention is made up of two waveform generators, and the structure of each waveform generator is：Resistance R1 is in parallel with electric capacity C1, its one end is grounded, the other end is connected with electric capacity C2 and is connected in operational amplifier, electric capacity C2 connects with adjustable resistance RP1, and adjustable resistance RP1 connects with adjustable resistance RP2, and adjustable resistance RP1 is connected with operational amplifier A, adjustable resistance RP2 connects with resistance R2, resistance R2 is grounded, and operational amplifier is connected with loudspeaker, and frequency meter is directly connected with operational amplifier and loudspeaker；Operational amplifier and loudspeaker are powered by power supply.The present invention is rational in infrastructure, and using effect is good.
Description
Technical field：
The present invention relates to physics teaching aid, particularly a kind of bat generator suitable for sound wave teaching.
Background technology：
Bat is a kind of phenomenon in physics, is commonly used to measurement frequency.Two frequencies are used in the teaching of physics at present
Identical tuning fork produces the phenomenon clapped to explain, but the intrinsic frequency of tuning fork is fixed, it is impossible to arbitrarily changes, and does not have frequency
Display, it is impossible to intuitively observe the relation between the generation of bat and frequency, tuning fork is during transport and preservation in addition, easily
Damage, more difficulty is caused to transport and preservation, and quality of instruction can be influenceed.
The content of the invention：
The purpose of the present invention is a kind of bat generator rational in infrastructure, using effect is good of design.
The technical scheme is that a kind of clap generator, it includes resistance, capacitor, it is characterised in that：It is by two
Waveform generator forms, and the structure of each waveform generator is：Resistance R1 is in parallel with electric capacity C1, its one end ground connection, the other end with
Electric capacity C2 is connected and is connected simultaneously with the in-phase input end of operational amplifier, and electric capacity C2 connects with adjustable resistance RP1, adjustable resistance
RP1 connects with adjustable resistance RP2, and adjustable resistance RP1 is connected with the output end of operational amplifier, adjustable resistance RP2 and resistance
R2 one end is connected, and resistance R2 other ends ground connection, earth-free one end of resistance R2 is connected with the inverting input of operational amplifier, transports
Calculate amplifier with loudspeaker to be connected, frequency meter is connected between operational amplifier and loudspeaker；Operational amplifier and loudspeaker by
Power supply is powered.
The present invention is rational in infrastructure, and using effect is good, the fabrication of electronic components of the invention for using technology maturation, stable performance,
Convenience in transport and preservation；And shown using digital frequency meter, can intuitively observe frequency when sending raw, and two
Frequency-splitting between waveform generator；Using fabrication of electronic components, the volume for clapping generator can be reduced, facilitate teacher to take
Band, the especially underdeveloped place of remote mountain areas traffic；The electronic component that the present invention uses all is common component, price pole
It is low, the cost for clapping generator is reduced, disclosure satisfy that the teaching request of poverty-stricken area.
Brief description of the drawings：
Fig. 1 is the structural representation of the present invention.
Embodiment：
Embodiment is described in detail with reference to accompanying drawing,
One kind claps generator, and it includes resistance, capacitor, and the present invention is made up of two waveform generators, each waveform hair
The structure of raw device is：Resistance R1 is in parallel with electric capacity C1, its one end ground connection, and the other end is connected with electric capacity C2 and while and operation amplifier
The in-phase input end of device is connected, and electric capacity C2 connects with adjustable resistance RP1, and adjustable resistance RP1 connects with adjustable resistance RP2, and can
Resistance RP1 is adjusted to be connected with the output end of operational amplifier, adjustable resistance RP2 connects with resistance R2 one end, another terminations of resistance R2
Ground, the earth-free one end of resistance R2 are connected with the inverting input of operational amplifier, and operational amplifier is connected with loudspeaker, is transporting
Calculate and be connected with frequency meter between amplifier and loudspeaker；Operational amplifier and loudspeaker are powered by power supply.
The present invention can adjust potentiometer RP2 in use, regulation potentiometer RP1, that is, change the value of corresponding potentiometer, so as to
Change the frequency values of waveform generator so that two frequency meter registrations are identical, arbitrarily can select number between 100Hz-2KHz
Value, then individually two waveform generators of regulation cause frequency phase-difference 2HZ of two waveforms or so, i.e., the ripple warp of two different frequencies
The generation of bat can significantly be heard by crossing superposition.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art is in the technical scope that illustrates of the present invention, the change or replacement that can readily occur in,
It should all be included within the scope of the present invention.
Claims (1)
1. one kind claps generator, it includes resistance, capacitor, it is characterised in that：It is made up of two waveform generators, Mei Gebo
The structure of shape generator is：Resistance R1 is in parallel with electric capacity C1, its one end ground connection, and the other end is connected with electric capacity C2 and while and computing
The in-phase input end of amplifier is connected, and electric capacity C2 connects with adjustable resistance RP1, and adjustable resistance RP1 connects with adjustable resistance RP2,
And adjustable resistance RP1 is connected with the output end of operational amplifier, adjustable resistance RP2 connects with resistance R2 one end, and resistance R2 is another
End ground connection, the earth-free one end of resistance R2 are connected with the inverting input of operational amplifier, and operational amplifier is connected with loudspeaker,
Frequency meter is connected between operational amplifier and loudspeaker；Operational amplifier and loudspeaker are powered by power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510704623.1A CN105206145B (en) | 2015-10-27 | 2015-10-27 | One kind claps generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510704623.1A CN105206145B (en) | 2015-10-27 | 2015-10-27 | One kind claps generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105206145A CN105206145A (en) | 2015-12-30 |
| CN105206145B true CN105206145B (en) | 2018-02-02 |
Family
ID=54953784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510704623.1A Active CN105206145B (en) | 2015-10-27 | 2015-10-27 | One kind claps generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105206145B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106530909A (en) * | 2017-01-20 | 2017-03-22 | 山东科技大学 | Beat frequency generating demonstrating instrument |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87201606U (en) * | 1987-06-18 | 1988-02-03 | 山东教学仪器厂 | Electromagnetic acoustooptical metronome |
| CN2112875U (en) * | 1991-06-12 | 1992-08-12 | 广州市乐器工业公司 | Electronic metronome |
| CN203134176U (en) * | 2013-03-14 | 2013-08-14 | 秦晶 | Multi-meter electronic metronome |
| CN203134178U (en) * | 2013-04-11 | 2013-08-14 | 张晓琳 | A music electronic acousto-optic metronome used in child teaching |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2000558A1 (en) * | 1969-01-09 | 1970-09-17 | Eastman Kodak Co | Exposure control |
| DD200558A1 (en) * | 1981-10-01 | 1983-05-18 | Jochen Langer | METHOD AND DEVICE FOR PRODUCING SCREW PRESSURE SPRINGS |
| CN205122043U (en) * | 2015-10-27 | 2016-03-30 | 新乡医学院 | Clap generator |
-
2015
- 2015-10-27 CN CN201510704623.1A patent/CN105206145B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87201606U (en) * | 1987-06-18 | 1988-02-03 | 山东教学仪器厂 | Electromagnetic acoustooptical metronome |
| CN2112875U (en) * | 1991-06-12 | 1992-08-12 | 广州市乐器工业公司 | Electronic metronome |
| CN203134176U (en) * | 2013-03-14 | 2013-08-14 | 秦晶 | Multi-meter electronic metronome |
| CN203134178U (en) * | 2013-04-11 | 2013-08-14 | 张晓琳 | A music electronic acousto-optic metronome used in child teaching |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105206145A (en) | 2015-12-30 |
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