CN203250454U - A Lorentz force demonstrator - Google Patents
A Lorentz force demonstrator Download PDFInfo
- Publication number
- CN203250454U CN203250454U CN 201320291043 CN201320291043U CN203250454U CN 203250454 U CN203250454 U CN 203250454U CN 201320291043 CN201320291043 CN 201320291043 CN 201320291043 U CN201320291043 U CN 201320291043U CN 203250454 U CN203250454 U CN 203250454U
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- CN
- China
- Prior art keywords
- container
- power supply
- lorentz force
- conducting liquid
- upper container
- Prior art date
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Abstract
The utility model belongs to a teaching apparatus and especially relates to a Lorentz force demonstrator. The Lorentz force demonstrator comprises a support (1), a top container (2), a bottom container (3), a power supply (4), and a magnet (5), wherein the top container (2), the bottom container (3), the power supply (4), and the magnet (5) are disposed on the support (1). Conductive liquid (6) is filled in the top container (2) and the bottom container (3). The top container (2) is communicated with a vertically-disposed conduit (7). Conductive liquid (6) in the top container (2) flows out of the top container (2) from the conduit (7) and forms a water column to drop into the bottom container (3). Both ends of the power supply (4) are respectively connected with a wire (8). A wire on one end of the power supply (4) is immersed in the conductive liquid (6) in the top container (2). A wire on the other end of the power supply (4) is immersed in the conductive liquid (6) in the bottom container (3). The magnet (5) is arranged between the top container (2) and the bottom container (3). The Lorentz force demonstrator enables students to directly observe Lorentz force borne by charged particles and helps the students grasp knowledge.
Description
Technical field
The utility model belongs to instruments used for education, particularly a kind of Lorentz force demoustrating instrument.
Background technology
Charged particle is subject to the effect of Lorentz force in magnetic field.The formula of Lorentz force is F=qvB, and q, v are respectively electric weight and the speed of point charge in the formula, and B is the magnetic induction density at place, point charge place.From emission of cathode electron beam out, under the action of high voltage between negative electrode and anode, bombardment inspires fluorescence to the video screen of strip, can demonstrate at oscillograph the track of electron beam motion.When not having external magnetic field, electron beam is along straight ahead, if ray tube is placed on two interpolars of horsehoe magnet, bending has just occured the track of the electron beam of fluorescence screen display motion.In the actual physics teaching, do not have special instrument to demonstrate Lorentz force, the teacher can only illustrate by animation.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of Lorentz force demoustrating instrument is provided.
To achieve these goals, the technical solution of the utility model is as follows: a kind of Lorentz force demoustrating instrument, comprise support and the upper container that is arranged on the support, lower container, power supply, ferromagnetic, in upper container and the lower container conducting liquid is housed, upper container is communicated with a conduit that vertically arranges, the conducting liquid of upper container flows out the formation water column from conduit falls lower container, the two ends of power supply respectively pick out a wire, the power supply wherein wire of an end is immersed in the conducting liquid of upper container, the wire of the power supply other end is immersed in the conducting liquid of lower container, and is ferromagnetic between upper container and lower container.
Form electric pathway between the conducting liquid of the conducting liquid of power supply of the present utility model, upper container, the water column that the conducting liquid of upper container forms from the conduit outflow, lower container, with the charged particle of simulating from the water column of conduit outflow with certain movement speed, ferromagnetic water column near flowing out from conduit, can be observed the bending of water column, the suffered Lorentz force of bending direction and water column conforms to.
As improvement, be in series with light source between the conducting liquid of the conducting liquid of described upper container, power supply, lower container.
Light source is shinny, forms electric pathway between the water column that the conducting liquid of power supply, upper container is described, flows out from conduit, the conducting liquid of lower container, and the image explanation is similar to one section electrical conductor from the water column that conduit flows out.
As improvement, in the described lower container water pump is arranged, the water delivering orifice of water pump is positioned at upper container.
The conducting liquid of lower container is delivered to upper container continuously, guarantees that upper container constantly has conducting liquid toward dirty, makes experiment can continue to carry out.
As further improvement, the front of described support is provided with magnifier, and magnifier faces the water column of the conducting liquid formation of upper container.
Magnifier is more easily observed experimental phenomena.
As further improvement, the described ferromagnetic shank that is fixed with.
The experimenter holds shank, can be easily magnet be placed any position between upper container and the lower container.
In sum, the utlity model has simple in structure, cost of manufacture is cheap, the advantage of easy, the successful of operation, has enriched teaching means, makes the student can see intuitively the Lorentz force that charged particle is suffered, helps to grasp knowledge.
Description of drawings
Fig. 1 is the structural representation of utility model.
Among the figure: 1, support; 2, upper container; 3, lower container; 4, power supply; 5, ferromagnetic; 6, conducting liquid; 7, conduit; 8, wire; 9, light source; 10, water pump; 11, magnifier; 12, shank.
Embodiment
Embodiment 1
As shown in Figure 1, a kind of Lorentz force demoustrating instrument comprises support 1 and the upper container 2, lower container 3, the power supply 4, ferromagnetic 5 that are arranged on the support 1.One water pump 10 is arranged in the lower container 3, and the water delivering orifice of water pump 10 is positioned at upper container 2.In upper container 2 and the lower container 3 conducting liquid 6 is housed, conducting liquid 6 can be the strong electrolytic solutions such as sodium chloride solution, produces sodion and the chlorion that moves freely after sodium chloride is water-soluble, and sodion and chlorion are all done directed motion after the energising.Upper container 2 is communicated with a conduit 7 that vertically arranges, the conducting liquid 6 of upper container 2 flows out the formation water column from conduit 7 falls lower container 3, the two ends of power supply 4 respectively pick out a wire 8, the power supply 4 wherein wire 8 of an end is immersed in the conducting liquid 6 of upper container 2, and the wire 8 of power supply 4 other ends is immersed in the conducting liquid 6 of lower container 3.Also be in series with light source 9 in the electric loop between the conducting liquid 6 of the conducting liquid 6 of upper container 2, power supply 4, lower container 3.Ferromagnetic 5 between upper container 2 and lower container 3, and ferromagnetic 5 are fixed with a shank 12.The front of support 1 is provided with magnifier 11, and magnifier 11 faces the water column of conducting liquid 6 formation of upper container 2.
Claims (5)
1. Lorentz force demoustrating instrument, it is characterized in that: comprise support (1) and be arranged on upper container (2) on the support (1), lower container (3), power supply (4), ferromagnetic (5), in upper container (2) and the lower container (3) conducting liquid (6) is housed, upper container (2) is communicated with a conduit (7) that vertically arranges, the conducting liquid (6) of upper container (2) flows out the formation water column from conduit (7) falls lower container (3), the two ends of power supply (4) respectively pick out a wire (8), power supply (4) the wherein wire of an end (8) is immersed in the conducting liquid (6) of upper container (2), the wire (8) of power supply (4) other end is immersed in the conducting liquid (6) of lower container (3), and ferromagnetic (5) are positioned between upper container (2) and the lower container (3).
2. a kind of Lorentz force demoustrating instrument as claimed in claim 1 is characterized in that: be in series with light source (9) between the conducting liquid (6) of the conducting liquid (6) of described upper container (2), power supply (4), lower container (3).
3. a kind of Lorentz force demoustrating instrument as claimed in claim 1 or 2, it is characterized in that: a water pump (10) is arranged in the described lower container (3), and the water delivering orifice of water pump (10) is positioned at upper container (2).
4. a kind of Lorentz force demoustrating instrument as claimed in claim 1, it is characterized in that: the front of described support (1) is provided with magnifier (11), and magnifier (11) faces the water column that the conducting liquid (6) of upper container (2) forms.
5. a kind of Lorentz force demoustrating instrument as claimed in claim 1, it is characterized in that: described ferromagnetic (5) are fixed with a shank (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320291043 CN203250454U (en) | 2013-05-22 | 2013-05-22 | A Lorentz force demonstrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320291043 CN203250454U (en) | 2013-05-22 | 2013-05-22 | A Lorentz force demonstrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203250454U true CN203250454U (en) | 2013-10-23 |
Family
ID=49376880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320291043 Expired - Fee Related CN203250454U (en) | 2013-05-22 | 2013-05-22 | A Lorentz force demonstrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203250454U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103258466A (en) * | 2013-05-22 | 2013-08-21 | 湖州师范学院 | Lorentz force demonstrating instrument |
-
2013
- 2013-05-22 CN CN 201320291043 patent/CN203250454U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103258466A (en) * | 2013-05-22 | 2013-08-21 | 湖州师范学院 | Lorentz force demonstrating instrument |
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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: 20131023 Termination date: 20140522 |