CN205899905U - Utilize ticker -timer to solve laboratory glassware of electromagnetic induction problem - Google Patents
Utilize ticker -timer to solve laboratory glassware of electromagnetic induction problem Download PDFInfo
- Publication number
- CN205899905U CN205899905U CN201620571579.1U CN201620571579U CN205899905U CN 205899905 U CN205899905 U CN 205899905U CN 201620571579 U CN201620571579 U CN 201620571579U CN 205899905 U CN205899905 U CN 205899905U
- Authority
- CN
- China
- Prior art keywords
- coil
- timer
- fixed plate
- paper tape
- electromagnetic induction
- 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.)
- Expired - Fee Related
Links
Landscapes
- Measurement Of Unknown Time Intervals (AREA)
Abstract
The utility model belongs to the technical field of the high school physics electromagnetic induction technique and specifically relates to an utilize ticker -timer to solve laboratory glassware of electromagnetic induction problem, this laboratory glassware of its characterized in that comprises strutting arrangement and experiment operation device, strutting arrangement include clip, support and fixed plate, the fixed plate on be equipped with the experiment operation device, the experiment operation device comprises ticker -timer, paper tape, coil, heavy object and multimeter, ticker -timer and coil are fixed on the fixed plate through the support respectively, the coil lies in ticker -timer's top and is vertical range, hub of a spool and ticker -timer's spacing hole is on same straight line, the spacing kong bingyu heavy object that the paper tape passed coil and ticker -timer in proper order is connected, is equipped with the magnetic stripe on the paper tape, the multimeter that is equipped with on wire and fixed plate of coil be connected, have simple structure, experiment conclusion persuasion reinforce, the advantages such as audio -visual understanding of student and grasp of being convenient for.
Description
Technical field
The present invention relates to high school physicses electromagnetic induction technical field, specifically a kind of structure is simple, experiment conclusion is said
The experimental apparatus of utilization dotted timer solution electromagnetic induction problems that the power that takes is strong, be easy to student intuitively understands and grasps.
Background technology
It is known that electromagnetic induction refers to the conductor being placed in change magnetic flux, electromotive force can be produced, faraday finds to produce
Raw electromotive force (electromotive force, abbreviation emf) on closed-loop path and the song being surrounded by this path any
On face, the rate of change of magnetic flux is directly proportional it means that electric current can be when the magnetic flux change of the curved surface being surrounded by conductor
Flowing in any closure conductor, this is applied to during itself change on the spot or when conductor moves inside, and electromagnetic induction is to generate electricity
Machine, the basis of the operation of induction motor, transformator and other power equipments most of.
At present, high school teachers probe into faradic current Production conditions and Lenz in explanation physics " taking as an elective course 3-2 " " electromagnetic induction "
The explanation it being carried out substantially using more succinct intuitively instrument during law demonstrator, this covering device is not accurate, though
So relatively near with life contact, the kinesiology knowledge relationship but learning with us less, is unfavorable for that we utilize knowledge pair
Physical phenomenon carries out quantitative analyses and lifting physics quality.
Content of the invention
Present invention aim to address above-mentioned the deficiencies in the prior art, provide that a kind of structure is simple, experiment conclusion cogency
By force, it is easy to that student intuitively understands and the utilization dotted timer grasped solves the experimental apparatus of electromagnetic induction problems.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of utilization dotted timer solve electromagnetic induction problems experimental apparatus it is characterised in that this experimental apparatus by
Support arrangement and experimental implementation device composition, described support meanss include clip, support and fixed plate, and pedestal lower end is provided with folder
Son, the clamp holder of clip is connected with pedestal lower end, the chuck opening of clip towards on the left of support and with support axis perpendicular, institute
The right side of the pedestal upper end stated is provided with vertical fixed plate, and described fixed plate is provided with experimental implementation device, and experimental implementation fills
Put and be made up of dotted timer, paper tape, coil, weight and avometer, dotted timer and coil are fixed on through bearing respectively
In fixed plate, coil is located at the top of dotted timer and in being vertically arranged, and hub of a spool is existed with the spacing hole of dotted timer
On same straight line, paper tape is sequentially passed through the spacing hole of coil and dotted timer and is connected with weight, and paper tape is provided with magnetic
Bar, described coil is connected with the avometer that fixed plate is provided with through wire.
On paper tape of the present invention, magnetic stripe interval is set to that movement time is equal and two kinds of equal paper tapes of spacing, convenient remembers
Record data and student's operation.
Coil of the present invention is provided with least two outlet ports, and the distance between outlet port is identical and ensures line
The circle number of turn is identical, and by connecting the different number of turn finish lead mouth control coil numbers of turn, and then it is right to observe the difference of coil turn
The change of em induced current.
Dotted timer of the present invention is electric spark clock, and electric spark clock is in operation
Experimental error little it is ensured that the accuracy of experiment conclusion.
The present invention is made up of support meanss and experimental implementation device due to this experimental apparatus, and described support meanss include pressing from both sides
Son, support and fixed plate, pedestal lower end is provided with clip, and the clamp holder of clip is connected with pedestal lower end, the chuck opening court of clip
To on the left of support and with support axis perpendicular, the right side of described pedestal upper end is provided with vertical fixed plate, described fixation
Plate is provided with experimental implementation device, and experimental implementation device is made up of dotted timer, paper tape, coil, weight and avometer, beats
Point timer and coil are fixed in fixed plate through bearing respectively, and coil is located at the top of dotted timer and is in be vertically arranged,
On same straight line, paper tape sequentially passes through the spacing of coil and dotted timer to the spacing hole of hub of a spool and dotted timer
Kong Bingyu weight is connected, and paper tape is provided with magnetic stripe, and described coil is connected with the avometer that fixed plate is provided with through wire
Connect, on described paper tape, magnetic stripe interval is set to that movement time is equal and two kinds of equal paper tapes of spacing, facilitates record data and
Raw operation, described coil is provided with least two outlet ports, and the distance between outlet port is identical and ensures coil turn
Identical, by connecting the different number of turn finish lead mouth control coil numbers of turn, and then observe the difference of coil turn to electromagnetism sense
The change of induced current, described dotted timer is electric spark clock, and electric spark clock is in operation
Experimental error little it is ensured that the accuracy of experiment conclusion, have that structure is simple, experiment conclusion cogency is strong, be easy to student intuitively
The advantages of understand and grasp.
Brief description
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of experimental implementation device in the present invention.
Fig. 3 is to prove in the present invention that Lenz's law has the paper tape of inhibition.
Specific embodiment
The present invention is further described below in conjunction with the accompanying drawings:
As shown in drawings, a kind of utilization dotted timer solves the experimental apparatus of electromagnetic induction problems it is characterised in that being somebody's turn to do
Experimental apparatus are made up of support meanss and experimental implementation device, and described support meanss include clip 1, support 2 and fixed plate 3,
Support 2 lower end is provided with clip 1, and the clamp holder of clip 1 is connected with support 2 lower end, and the chuck opening of clip 1 is towards on the left of support 2
And with support 2 axis perpendicular, the right side of described support 2 upper end is provided with vertical fixed plate 3, described fixed plate 3 sets
There is experimental implementation device, experimental implementation device is made up of dotted timer 4, paper tape 5, coil 6, weight 7 and avometer 8, beats
Point timer 4 and coil 6 are fixed in fixed plate 3 through bearing respectively, and coil 6 is located at the top of dotted timer 4 and in vertically
On same straight line, paper tape 5 sequentially passes through coil 6 and gets meter ready the spacing hole of arrangement, coil 6 center and dotted timer 4
When the spacing hole of device 4 being connected with weight 7, paper tape 5 is provided with magnetic stripe 9, and described coil 6 sets through in wire and fixed plate 3
Some avometers 8 are connected, and on described paper tape 5, magnetic stripe 9 interval is set to that movement time is equal and two kinds of equal paper of spacing
Band, facilitates record data and student's operation, described coil 6 is provided with least two outlet ports 10, between outlet port 10
Distance identical and ensure that coil 6 number of turn is identical, by connecting different number of turn coil 6 outlet ports 10 control coil 6 number of turn, enter
And observe the change to em induced current of the difference of coil 6 number of turn, described dotted timer 4 gets timing ready for electric spark
Device, electric spark clock in operation experimental error little it is ensured that the accuracy of experiment conclusion.
When verifying that Lenz's law has inhibition, fixedly mount instrument first, the clip 1 in this experimental apparatus has been pressed from both sides
In the side of desk, and then fix the experimental implementation device of experimental apparatus, then the magnetic with relatively high magnetism that weight 7 will be connected
The paper tape 5 of bar 9 passes through spacing hole and coil 6 and fixes, then opens the power supply of electric spark clock, freely releases after stable
Put weight, then a mark is analyzed calculating, in the range of error allows, or utilize the not magnetic paper tape 5 of identical
Do identical experiment, find that reality is beaten invocation point mark interval and had larger reduction compared with theoretical interval, verify Lenz's law resistance
(as shown in figure 3, dotted line represents the theoretical position of freely falling body point mark in Fig. 3, solid line represents actual measurement in experiment to hinder effect
Point mark position).
When studying the law of electromagnetic induction, fixedly mount instrument first, the clip 1 in this experimental apparatus has been clipped in desk
Side, and then fix the experimental implementation device of experimental apparatus, open avometer 8 and switch, then carrying of weight 7 will be connected
The paper tape 5 of the magnetic stripe 9 of relatively high magnetism passes through spacing hole and coil 6 and fixes, then opens the power supply of electric spark clock 4,
Freely discharge weight 7, the transient current data that record avometer records for more than 8 time after stable, then a mark be analyzed
Calculate, according to the data research law of electromagnetic induction, by experiment, the magnet collecting friction speed passes through the sensing producing during coil
Size of current, indirectly obtains condition and size conclusion of faradic current generation etc., changes avometer 8 and going out that coil 6 is connected
Line end mouth 10, is analyzed comparing by the experimental data that the coil 6 of the different numbers of turn records, and draws the condition that faradic current produces
And size.
The present invention has carried out detailed grinding to improvement of the experiment probing into faradic current Production conditions and Lenz's law etc.
Study carefully, provide induction level equal magnetic field using the paper tape 5 with magnetic stripe in wherein testing, by electromagnetism content and motion
Learn content to have carried out organically combining it is adaptable to tentatively understand probing into further to it after faradic current Production conditions, Xue Shengtong
Cross and use oneself known kinesiology formula, very easily calculate paper tape 5 through out-of-date theoretical velocity, it is surveyed with actual
Speed compares and just can verify that Lenz's law and the law of electromagnetic induction, dotted timer 4 of the present invention can be by equal time
In interval, a paper tape 5 displacement mark time interval, dotted timer 4 power supply is opened in paper tape 5 fixed position, then discharges
Paper tape 5, just can be used for probing into the association attributes of linear motion, and posts using in electric spark clock 4 and equal intervals
Magnetic stripe 9 or the paper tape 5 being stained with magnetic powder, paper tape are passed through the larger coil 6 of the number of turn, had not both interfered with the speed of paper tape motion,
Also corresponding faradic current can be sensed in coil 6, if magnetic is weaker, multiple Magnet also can be connect on paper tape, certainly
By not interacting during falling and successively passing through coil, phenomenon becomes apparent from.
The present invention is made up of support meanss and experimental implementation device due to this experimental apparatus, and described support meanss include pressing from both sides
Son 1, support 2 and fixed plate 3, support 2 lower end is provided with clip 1, and the clamp holder of clip 1 is connected with support 2 lower end, the folder of clip 1
Head opening towards support 2 left side and with support 2 axis perpendicular, the right side of described support 2 upper end is provided with vertical fixed plate
3, described fixed plate 3 is provided with experimental implementation device, and experimental implementation device is by dotted timer 4, paper tape 5, coil 6, weight 7
Form with avometer 8, dotted timer 4 and coil 6 are fixed in fixed plate 3 through bearing respectively, coil 6 is located at and gets timing ready
The top of device 4 in being vertically arranged, on same straight line, paper tape 5 is successively for the spacing hole of coil 6 center and dotted timer 4
Be connected through the spacing hole of coil 6 and dotted timer 4 and with weight 7, paper tape 5 is provided with magnetic stripe 9, described coil 6 warp
The avometer 8 that wire is provided with fixed plate 3 is connected, on described paper tape 5 magnetic stripe 9 interval be set to movement time equal and
Two kinds of equal paper tapes of spacing, facilitate record data and student's operation, and described coil 6 is provided with least two outlet ports
10, the distance between outlet port 10 is identical and ensures that coil 6 number of turn is identical, by connecting different number of turn coil 6 outlet ports
10 control coil 6 number of turn, and then observe the change to em induced current for the difference of coil 6 number of turn, described dotted timer 4
For electric spark clock, electric spark clock in operation experimental error little it is ensured that experiment conclusion accurate
Property, this experimental apparatus advantage is that the motion being very familiar to can be gained knowledge by student and creatively studies and applies, and is truly realized physicss' profit
The process new problem deeply probed into the knowledge grasped, meanwhile, makes experiment tie under the premise of ensureing experiment reasonability
Fruit more has cogency, has been truly realized the combination of study and practice, has been that experimental design provides new thinking, has
Structure is simple, experiment conclusion cogency is strong, be easy to student the advantages of intuitively understand and grasp.
Claims (4)
1. a kind of utilization dotted timer solves the experimental apparatus of electromagnetic induction problems it is characterised in that this experimental apparatus is by supporting
Device and experimental implementation device composition, described support meanss include clip, support and fixed plate, and pedestal lower end is provided with clip,
The clamp holder of clip is connected with pedestal lower end, the chuck opening of clip towards on the left of support and with support axis perpendicular, described
The right side of pedestal upper end be provided with vertical fixed plate, described fixed plate is provided with experimental implementation device, experimental implementation device
It is made up of dotted timer, paper tape, coil, weight and avometer, dotted timer and coil are fixed on through bearing respectively
In fixed board, coil is located at the top of dotted timer and in being vertically arranged, and the spacing hole of hub of a spool and dotted timer is same
On straight line, paper tape is sequentially passed through the spacing hole of coil and dotted timer and is connected with weight, and paper tape is provided with magnetic stripe,
Described coil is connected with the avometer that fixed plate is provided with through wire.
2. a kind of utilization dotted timer according to claim 1 solves the experimental apparatus of electromagnetic induction problems, its feature
It is on described paper tape that magnetic stripe interval is set to that movement time is equal and two kinds of equal paper tapes of spacing.
3. a kind of utilization dotted timer according to claim 1 solves the experimental apparatus of electromagnetic induction problems, its feature
It is that described coil is provided with least two outlet ports, the distance between outlet port is identical and ensures coil turn phase
With by connecting the different number of turn finish lead mouth control coil numbers of turn, and then the difference of observation coil turn is to electromagnetic induction
The change of electric current.
4. a kind of utilization dotted timer according to claim 1 solves the experimental apparatus of electromagnetic induction problems, its feature
It is that described dotted timer is electric spark clock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620571579.1U CN205899905U (en) | 2016-06-15 | 2016-06-15 | Utilize ticker -timer to solve laboratory glassware of electromagnetic induction problem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620571579.1U CN205899905U (en) | 2016-06-15 | 2016-06-15 | Utilize ticker -timer to solve laboratory glassware of electromagnetic induction problem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205899905U true CN205899905U (en) | 2017-01-18 |
Family
ID=57768237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620571579.1U Expired - Fee Related CN205899905U (en) | 2016-06-15 | 2016-06-15 | Utilize ticker -timer to solve laboratory glassware of electromagnetic induction problem |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205899905U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106057041A (en) * | 2016-06-15 | 2016-10-26 | 蒲元昊 | Experiment instrument capable of solving problem of electro-magnetic induction and operation method thereof |
-
2016
- 2016-06-15 CN CN201620571579.1U patent/CN205899905U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106057041A (en) * | 2016-06-15 | 2016-10-26 | 蒲元昊 | Experiment instrument capable of solving problem of electro-magnetic induction and operation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102331379A (en) | Wire bending tester | |
| CN106057041B (en) | A kind of laboratory apparatus and operating method solving electromagnetic induction problems | |
| CN104849208B (en) | A kind of frictional coefficient of fiber test device and its method of testing | |
| CN205899905U (en) | Utilize ticker -timer to solve laboratory glassware of electromagnetic induction problem | |
| CN104635059A (en) | Dynamic measuring method and dynamic measuring device for contact resistance of switch contact | |
| CN203502574U (en) | Magnetic flux measurement device based on three dimensional Helmholtz coil | |
| CN202126785U (en) | Tester for Faraday's electromagnetic induction law | |
| CN203204135U (en) | U type single magnetic core magnetic flux gate probe | |
| CN203397581U (en) | An Ampere force experiment instrument | |
| CN202948043U (en) | Open type Wheatstone bridge experimental instrument | |
| CN206282505U (en) | A kind of quantitative exploring instrument of Ampere force formula | |
| CN201397600Y (en) | Novel Ampere force demonstration apparatus | |
| CN209102807U (en) | A kind of soil resistivity measuring box | |
| CN206301035U (en) | A kind of magnetic material detector device of pin-point reading | |
| CN207637376U (en) | Ampere force scale | |
| CN107358849A (en) | Lenz's law, Faraday's electromagnetic induction law analytical demonstrator | |
| CN210777431U (en) | Comprehensive demonstration experiment instrument for exploring ampere force characteristics | |
| CN108109492A (en) | A kind of Ampere force formula quantifies exploring instrument | |
| CN111199673A (en) | Faraday's law of electromagnetic induction ration experimental apparatus | |
| CN209044991U (en) | The parallel copper rod stress demonstrating of two energizations and quantitative measurment experiment instrument | |
| CN207557303U (en) | A kind of magnetic-absorption type universal meter dial framework | |
| CN107909903B (en) | Experimental method for directly utilizing direct current to quantitatively verify Faraday's law of electromagnetic induction | |
| CN202870170U (en) | Open type Kelvin bridge experimental instrument | |
| CN201725468U (en) | Experimental apparatus for visually and quantitatively analyzing ampere force | |
| CN203689783U (en) | Coil mutual inductance detection experimental device |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 Termination date: 20170615 |