CN104318825B - Vibrating motor and Chord vibration cycle experimental instrument and operational approach thereof that the electric tuning fork that shakes is pair vibration wave source - Google Patents
Vibrating motor and Chord vibration cycle experimental instrument and operational approach thereof that the electric tuning fork that shakes is pair vibration wave source Download PDFInfo
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- CN104318825B CN104318825B CN201410583953.5A CN201410583953A CN104318825B CN 104318825 B CN104318825 B CN 104318825B CN 201410583953 A CN201410583953 A CN 201410583953A CN 104318825 B CN104318825 B CN 104318825B
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- 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
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Abstract
Vibrating motor and electricity shake the Chord vibration cycle experimental instrument that tuning fork is double vibration wave source, are that to there is device structure complicated in order to solve existing Chord vibration experiment instrument, and experiment has blind area, the technical problems such as demonstrating effect is inconspicuous.This experiment instrument includes experiment instrument main body, and the bottom of main body is provided with base and equipped with vibrating motor parts, and vibrating motor parts are arranged on electricity by fixed flat planar and shake the top of tuning fork head.Vibrating motor is installed in above-mentioned vibrating motor parts, the right side of vibrating motor outer shaft is provided with eccentric block.DC source frequency meter is installed in the left side of described base, DC source frequency meter is provided with voltage regulation and frequency modulation power supply and vibrating motor frequency meter.Above-mentioned voltage regulation and frequency modulation power supply is provided with voltage regulation and frequency modulation permutator and on and off switch etc..It is provided with to electric switch and frequency switching etc. on vibrating motor frequency meter.During use, by connecing the step such as electricity, pressure regulation, last Chord vibration frequency obtains by measuring the frequency of vibration that vibrating motor is wave source, and double vibration wave source can mutually proofread and compare, have rational in infrastructure, and operational approach is easy and the obvious feature of demonstrating effect.
Description
Technical field
The present invention relates to a kind of Chord vibration experiment instrument, particularly relate to the Chord vibration that a kind of vibrating motor is wave source
Cycle experimental instrument.This Chord vibration experiment instrument is mainly used in the Physical Experiment of university, belongs to power ermal physics
Experimental technique field.
Background technology
At present, in power ermal physics Chord vibration experiment field, the general vibration using following Chord vibration wave source
Mode: electricity shakes the Chord vibration mode that tuning fork is wave source or the Chord vibration mode that electromagnetism vibration generator is wave source.On
All there is many drawbacks in mode of stating, although first kind of way demonstrating effect is obvious, and cost is relatively low, but exists
Serious experiment blind area, conventional efficient is low.And latter demonstrating effect is inconspicuous, and device structure is complicated,
Cost is high, and efficiency is low, and the material requirements to string is high, and poor reliability causes experimental teaching quality to be subject to
Impact.
Summary of the invention
The invention aims to solve existing Chord vibration experiment instrument and device existence equipment in various degree
Structure is complicated, and cost is high, and experiment has blind area, and conventional efficient is low, and demonstrating effect is inconspicuous, and to string
Material requirements high, poor reliability, the technical problems such as experimental teaching quality is impacted, it is provided that Yi Zhongxin
The vibrating motor of type and the Chord vibration cycle experimental instrument that the electric tuning fork that shakes is double vibration wave source.
For achieving the above object, the present invention uses following technical proposals: vibrating motor and the electricity tuning fork that shakes is double
The Chord vibration cycle experimental instrument of vibration wave source, it includes experiment instrument main body, at the end of described experiment instrument main body
Portion is provided with base (22), and base (22) leads to the fixed flat planar (21) of vibrating motor parts (12)
Cross the electricity electricity of Chord vibration experiment instrument (18) that tuning fork the is wave source tuning fork head (19) that shakes that shakes and support fixing.
Being provided with vibrating motor parts (12) in described experiment instrument main body, vibrating motor parts (12) are arranged on solid
Allocate plate (21) top, fixed flat planar (21) be arranged on electricity shake tuning fork head (19) top, electricity shakes
Tuning fork head (19) single-point support fixed flat planar (21) screw (20) is fixed.At described vibration electricity
Being provided with vibrating motor (10) in machine parts (12), vibrating motor (10) is by vibrating motor fixed mount (9)
It is fixed on fixed flat planar (21).Pacify on the right side of the outer shaft (11) of above-mentioned vibrating motor (10)
Equipped with eccentric block (8).Described fixed flat planar (21) is provided with baffle plate (7) and with trip bolt (5)
Fastening.Photoelectricity door frame (4), photogate (6) are installed on above-mentioned base (22).Above-mentioned vibrating motor
(10) it is connected with DC source frequency meter (14) by wire (13), DC source frequency meter (14)
It is arranged on the left side of base (22).Voltage regulation DC electricity is installed on above-mentioned DC source frequency meter (14)
Source (15) and frequency modulation square wave power (16) and vibrating motor frequency meter (17).In described fixed flat planar (21)
Right side edge in the middle of with vibrate string (3) be fastenedly connected with trip bolt (5).Above-mentioned vibration string (3)
Connecting counterweight (1) through directive wheel (2), directive wheel (2) is fixed on laboratory table.
The experiment instrument that the vibrotechnique that the present invention uses vibrating motor to be wave source is tested for Chord vibration, will shake
Dynamic motor component energising, to voltage regulation of electric power sources or frequency modulation, changes vibrating motor frequency of vibration and amplitude, vibration
Motor oscillating drives fixed flat planar vibration, fixed flat planar vibration to drive Chord vibration, and Chord vibration frequency can be led to
Crossing and measure the frequency of vibration acquisition that vibrating motor is wave source, double vibration wave source can mutually be proofreaded and compare, and use
Single-point support fixed flat planar beneficially vibrating motor parts are the vibration of wave source.
The feature of the present invention and beneficial effect: rational in infrastructure, low cost, Chord vibration experiment effective and
Efficiency is high, and experimental teaching quality is excellent, owing to device requirement amount is big, is suitable for large-scale production.
It is in particular in:
Using vibrating motor parts is vibration wave source, and vibrating motor component vibration frequency can pass through DC source
Frequency meter changes and measures, and Chord vibration frequency can be surveyed adjustable, Chord vibration wide frequency range, experimentation model
Enclosing width, without experiment blind area, equipment is few, and apparatus structure is simple, simple to operate, and conventional efficient is high.
Vibrating motor and electricity is used to shake tuning fork for double vibration wave source, vibrating motor component vibration frequency and wavelength
Can shake tuning fork vibration frequency with electricity and wavelength is mutually proofreaded and compared, experiment effect is good.
Being provided with eccentric block on the right side of vibrating motor outer shaft, vibrating motor frequency of vibration is stable, frequently
Rate vibration precisely, is provided with the fastening of baffle plate trip bolt on fixed flat planar, is provided with light on base
Electric switch frame, photogate, be wired on base right side and be provided with DC source frequency meter, more smart
Thin regulation and control vibrating motor frequency of vibration and measurement vibrating motor frequency of vibration are fast accurate, can regulate and control out
Bigger amplitude effect so that regulating and controlling and measure more uniform, experimental precision height, experiment effect is the best.
Owing to voltage regulation and frequency modulation power supply and vibrating motor frequency meter use all-in-one to make, reduce cost, real
Testing easy to operate and improve experimental implementation efficiency, reducing experimental implementation error, experimental teaching quality is excellent.
Owing to vibrating motor is wave source and be vibration string with non-metal rope, vibration reliability is high, demonstrating effect
Substantially, regulating and measure easily, old vibration string is changed easily, improves experimental implementation efficiency.Fixed flat planar,
Vibrating motor component enclosure uses TPU to make, and elasticity, toughness, wearability, hardness, corrosion resistance be good, can
Processability and experimental etc. the best.
Owing to the Physical Experiment of a university is it is generally required to 20-40 platform, device requirement amount is big, favorably
In large-scale production.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention
Detailed description of the invention
Embodiment 1
Referring to Fig. 1, vibrating motor and the Chord vibration cycle experimental instrument that the electric tuning fork that shakes is double vibration wave source, its bag
Include experiment instrument main body, be provided with base 22, base 22 and vibrating motor portion in the bottom of described experiment instrument main body
Part fixed flat planar 21 is shaken 19, tuning fork head by the shake electricity of Chord vibration experiment instrument 18 that tuning fork is wave source of electricity
Support is fixing.Being provided with vibrating motor parts 12 in described experiment instrument main body, vibrating motor parts 12 are arranged on
Above fixed flat planar 21, fixed flat planar 21 is arranged on electricity and shakes above tuning fork head 19, and electricity shakes tuning fork head
19 single-point support fixed flat planars 21 screw 20 is fixed.It is provided with in described vibrating motor parts 12 and shakes
Galvanic electricity machine 10, vibrating motor 10 is fixed on fixed flat planar 21 by vibrating motor fixed mount 9.Above-mentioned shake
On the right side of the outer shaft 11 of galvanic electricity machine 10, eccentric block 8 is installed.Described fixed flat planar 21 is installed
There is baffle plate 7 and fasten with trip bolt 5.Photoelectricity door frame 4, photogate 6 are installed on above-mentioned base 22.
Above-mentioned vibrating motor 10 is connected with DC source frequency meter 14 by wire 13, DC source frequency meter 14
It is arranged on the left side of base 22.Adjusting pressuring dc power 15 He is installed on above-mentioned DC source frequency meter 14
Frequency modulation square wave power 16 and vibrating motor frequency meter 17.In the middle of the right side edge of described fixed flat planar 21
It is fastenedly connected with vibration string 3 trip bolt 5.Above-mentioned vibration string 3 connects counterweight 1 through directive wheel 2,
Directive wheel 2 is fixed on laboratory table.
Described electricity shake the electricity of Chord vibration experiment instrument 18 that tuning fork is wave source shake above tuning fork head 19 equipped with
Vibrating motor parts 12 are vibration wave source, and vibrating motor component vibration frequency can pass through DC source frequency meter
14 change and measure, and double vibration wave source can mutually be proofreaded and compare.
The shell of described fixed flat planar 21, vibrating motor fixed mount 9 and vibrating motor parts 12 all uses
TPU makes.Base 22 uses cast iron or plank to make.Eccentric block 8 uses Cu or Fe to make.
Described adjusting pressuring dc power 15 and frequency modulation square wave power 16, vibrating motor tachymeter 17 uses one
Make.
Described vibration string 3 uses non-metal rope.
Operation principle
The Chord vibration cycle experimental instrument apparatus using vibrating motor to be wave source, is wave source by vibrating motor 10,
Being the exciting source that is combined as a whole with vibration source of power source, vibrating motor 10 is made up of additional eccentric block 8,
When vibrating motor 10 outer shaft 11 rotates, rotating shaft 11 drives eccentric block to produce exciting force by vibration electricity
The vibration of machine 10 passes to vibrate string 3.As it is shown in figure 1, DC source frequency meter 14 power supply only need to be regulated
Voltage, can change the voltage at vibrating motor 10 two ends, i.e. adjustable vibrating motor 10 rotating speed and power,
I.e. adjustable vibrating motor 10 frequency of vibration and amplitude. i.e. adjustable vibrates frequency of vibration and the amplitude of string 3；
If vibrating motor 10 both end voltage is certain, change vibrating motor 10 both end voltage frequency, i.e. adjustable
Shaking of vibrating motor 10 rotating speed, i.e. adjustable vibrating motor 10 frequency of vibration, i.e. adjustable vibration string 3
Dynamic frequency, vibrating motor 10 drives baffle plate 7 to vibrate, baffle plate 7 vibrates by photogate 6 by wire 13
Tach signal is delivered to vibrating motor frequency meter 17 record and show vibrating motor 10 cycle and frequency.
Vibration string 3 vibration period and frequency can be by measuring vibration period and the frequency that vibrating motor 10 is wave source
Obtain.The frequency of vibration of vibrating motor 10 can shake Chord vibration frequency ratio that tuning fork is wave source relatively and check and correction with electricity.
Operational approach:
During use, first have to before Chord vibration the adjusting pressuring dc power 15 on DC source frequency meter 14
Pressure regulation, after supply voltage determines, is energized to vibrating motor parts 12, uses and is positioned on fixed flat planar 21
Vibrating motor parts 12 start vibration for wave source, to frequency modulation square wave power 16 frequency modulation, change vibration electricity
Machine parts 12 frequency of vibration, then determine vibrating motor 10 vibration period by vibrating motor frequency meter 17,
Vibrating motor 10 vibration drives vibrating motor parts 12 to vibrate, then drives fixed flat planar 21 to vibrate, then carries
Dynamic vibration string 3 vibrates；Change adjusting pressuring dc power 15 supply voltage, turning of vibrating motor 10 can be changed
Speed, can change vibrating motor 10 frequency of vibration and amplitude, can change vibrating motor parts 12 frequency of vibration
And amplitude, fixed flat planar 21 frequency of vibration and amplitude can be changed, then change vibration string 3 frequency of vibration and shake
Width.Drive fixed flat planar 21 to vibrate by vibrating motor parts 12 vibration, then pacify on band fixed flat planar 21
Dress baffle plate 7 vibrates, and baffle plate 7 vibrates and is delivered to vibrate electricity by vibration signal by wire 13 by photogate 6
Machine frequency meter 17 records and shows vibrating motor 10 cycle and frequency.Vibration string 3 vibration period and frequency
Can be by measuring the vibration period and frequency acquisition that vibrating motor 10 is wave source.Vibrating motor 10 is ripple
After vibration string 3 frequency of vibration in source is measured, unclamp screw 20 by fixed flat planar 21 and vibrating motor parts
12 take down, and with screw 20, vibration string 3 are fixed on electricity and shake above tuning fork head 19, can start electricity and shake
Tuning fork is the Chord vibration experiment instrument 18 of vibration wave source, can mutually be proofreaded by double vibration wave source and compare vibration string
The frequency of 3 and wavelength.
Claims (6)
1. vibrating motor and the Chord vibration cycle experimental instrument that the electric tuning fork that shakes is double vibration wave source, it includes experiment
Instrument main body, it is characterised in that: base (22), base (22) it is provided with in the bottom of described experiment instrument main body
With vibrating motor parts fixed flat planar (21) by electric Chord vibration experiment instrument (18) that tuning fork is wave source that shakes
The electricity tuning fork head (19) that shakes support fixing, in described experiment instrument main body, vibrating motor parts (12) are installed,
Vibrating motor parts (12) are arranged on fixed flat planar (21) top, and fixed flat planar (21) is arranged on electricity
Shake tuning fork head (19) top, and electricity tuning fork head (19) the single-point support fixed flat planar (21) that shakes uses spiral shell
Nail (20) is fixed, and is provided with vibrating motor (10), vibration electricity in described vibrating motor parts (12)
Machine (10) is fixed on fixed flat planar (21) by vibrating motor fixed mount (9), above-mentioned vibrating motor (10)
Outer shaft (11) right side on eccentric block (8) is installed, install described fixed flat planar (21) is upper
Have baffle plate (7) and with trip bolt (5) fasten, above-mentioned base (22) is provided with photoelectricity door frame (4),
Photogate (6), above-mentioned vibrating motor (10) is by wire (13) and DC source frequency meter (14)
Connecting, DC source frequency meter (14) is arranged on the left side of base (22), above-mentioned DC source frequency measurement
Adjusting pressuring dc power (15) and frequency modulation square wave power (16) are installed on instrument (14) and vibrating motor is surveyed
Frequently instrument (17), with vibration string (3) fastening spiral shell in the middle of the right side edge of described fixed flat planar (21)
Nail (5) is fastenedly connected, and above-mentioned vibration string (3) connects counterweight (1), directive wheel through directive wheel (2)
(2) it is fixed on laboratory table.
Vibrating motor the most according to claim 1 and electricity shake the Chord vibration week that tuning fork is double vibration wave source
Phase experiment instrument, it is characterised in that: the electricity of Chord vibration experiment instrument (18) that tuning fork is wave source of shaking at described electricity
Tuning fork head (19) top that shakes is vibration wave source equipped with vibrating motor parts (12), vibrating motor parts
Frequency of vibration is changed by DC source frequency meter (14) and is measured.
Vibrating motor the most according to claim 1 and electricity shake the Chord vibration week that tuning fork is double vibration wave source
Phase experiment instrument, it is characterised in that: described fixed flat planar (21), vibrating motor fixed mount (9) and vibration
The shell of motor component (12) all uses TPU to make, and base (22) uses cast iron or plank to make；
Eccentric block (8) uses Cu or Fe to make.
Vibrating motor the most according to claim 1 and electricity shake the Chord vibration week that tuning fork is double vibration wave source
Phase experiment instrument, it is characterised in that: described adjusting pressuring dc power (15), frequency modulation square wave power (16), shake
Galvanic electricity machine frequency meter (17) uses machine.
Vibrating motor the most according to claim 1 and electricity shake the Chord vibration week that tuning fork is double vibration wave source
Phase experiment instrument, it is characterised in that: described vibration string (3) uses non-metal rope.
6. vibrating motor and electricity as described in claim 1 or 2 or 3 or 4 or 5 shake tuning fork for double vibrations
The operational approach of the Chord vibration cycle experimental instrument of wave source, is realized by following step:
First have to before Chord vibration the adjusting pressuring dc power (15) on DC source frequency meter (14) is adjusted
Pressure, after supply voltage determines, is energized to vibrating motor parts (12), uses and be positioned at fixed flat planar (21)
On vibrating motor parts (12) be wave source start vibration, to frequency modulation square wave power (16) frequency modulation, change
Become vibrating motor parts (12) frequency of vibration, then determine vibration electricity by vibrating motor frequency meter (17)
Machine (10) vibration period and frequency, vibrating motor (10) vibration drives vibrating motor parts (12) to shake
Dynamic, then drive fixed flat planar (21) to vibrate, then drive vibration string (3) vibration, change voltage regulation DC electricity
Source (15) supply voltage, changes vibrating motor (10) rotating speed, changes vibrating motor (10) vibration frequency
Rate and amplitude, change vibrating motor parts (12) frequency of vibration and amplitude, changes fixed flat planar (21)
Frequency of vibration and amplitude, then change vibration string (3) frequency of vibration and amplitude, by vibrating motor parts (12)
Vibration drive fixed flat planar (21) vibration, then drive install on fixed flat planar (21) baffle plate (7) vibration,
Vibration signal is delivered to vibrating motor by photogate (6) by wire (13) and surveys by baffle plate (7) vibration
Frequently instrument (17) records and shows vibrating motor (10) cycle and frequency, vibration string (3) vibration period and
Frequency is by measuring the vibration period and frequency acquisition, vibrating motor (10) that vibrating motor (10) is wave source
After measuring for vibration string (3) frequency of vibration of wave source, unclamp screw (20) by fixed flat planar (21) and
Vibrating motor parts (12) are taken down, and with screw (20), vibration string (3) are fixed on electricity and are shaken tuning fork head
(19) top, starts electric Chord vibration experiment instrument (18) that tuning fork is vibration wave source that shakes, by double vibration waves
Frequency and the wavelength comparing vibration string (3) is mutually proofreaded in source.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410583953.5A CN104318825B (en) | 2014-10-27 | 2014-10-27 | Vibrating motor and Chord vibration cycle experimental instrument and operational approach thereof that the electric tuning fork that shakes is pair vibration wave source |
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|---|---|---|---|
| CN201410583953.5A CN104318825B (en) | 2014-10-27 | 2014-10-27 | Vibrating motor and Chord vibration cycle experimental instrument and operational approach thereof that the electric tuning fork that shakes is pair vibration wave source |
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| Publication Number | Publication Date |
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| CN104318825A CN104318825A (en) | 2015-01-28 |
| CN104318825B true CN104318825B (en) | 2016-10-19 |
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|---|---|
| CN104318825A (en) | 2015-01-28 |
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