CN202049652U - Experimental device for motion of charged particle - Google Patents
Experimental device for motion of charged particle Download PDFInfo
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- CN202049652U CN202049652U CN2010206087082U CN201020608708U CN202049652U CN 202049652 U CN202049652 U CN 202049652U CN 2010206087082 U CN2010206087082 U CN 2010206087082U CN 201020608708 U CN201020608708 U CN 201020608708U CN 202049652 U CN202049652 U CN 202049652U
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- electric field
- charged
- deflection
- parallel
- lightweight
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Abstract
The utility model relates to an experimental device which can demonstrate acceleration of a macroscopic charged body in an electric field, and also can demonstrate deflection of the macroscopic charged body in an electric field. A lightweight conductive ball is disposed between two charged parallel metal plates and is in proximity to one charged metal plate. When high enough voltages are applied to the two parallel metal plates, the lightweight conductive ball is attracted by the metal plate in proximity to the ball and is charged by contact, then the conductive ball begins to accelerate from a stationary state in an electrostatic field formed by the two charged parallel metal plates, and the conductive ball enters a deflection electric field at a certain speed after coming from the acceleration electric field to realize deflection in the deflection electric field.
Description
Technical field the utility model relates to a kind ofly can demonstrate the motion conditions of macroscopical electrified body in electric field on the high school physics classroom, especially can demonstrate acceleration and the deflection of electrified body in electric field qualitatively.
In the senior middle school of the existing people education publishing house of background technology " physics " (required the adding takes as an elective course) course, adopt the demonstration electrified body to quicken test unit be cathode-ray tube (CRT), can only let us get to track on the video screen by observing electron beam, know from experience the process that electronics is accelerated, motion conditions that can not the macroscopic observation electrified body can not obtain good classroom effect.
Summary of the invention is in order to overcome the motion conditions that existing experimental provision can not the macroscopic observation electrified body.The utility model provides a kind of experimental provision, can demonstrate the deflection of electrified body in electric field again in the acceleration of the macroscopical electrified body of demonstration in electric field on the classroom.
The technical scheme that its technical matters that solves the utility model adopts is: the end at insulator foot is fixed with two sheet metals parallel to each other, one of them sheet metal bottom has vaulted hole, be fixed with closed slide between the parallel-plate, place the lightweight bead on the closed slide, the opposite side of insulator foot also is placed with two parallel sheet metals, and placement direction is vertical with preceding two sheet metal directions.The surface of lightweight bead is coated with the last layer conductive materials, places it near accelerator card one side.Utilize the principle of Electrostatic Absorption and contact electrification to make the lightweight bead charged.After bead is charged, under the effect of electric field force, realize quickening; After the acceleration, electric globule enters deflecting electric field with the speed perpendicular to deflecting electric field, realizes deflection.
The beneficial effects of the utility model are, can observe the acceleration of macroscopical electrified body in electric field intuitively, qualitatively, can observe the deflection of electrified body again, be particularly conducive on the classroom and accept for the beginner, stay deep impression to the student, intensification is to the understanding of particle acceleration with deflection, and the classroom effect is obvious.The utility model mechanical hook-up is simple, understandings easily, cheap, easy making, experiment effect are obvious, is convenient to popularization.
Description of drawings
Below in conjunction with accompanying drawing and example the utility model is further specified.
Accompanying drawing is a structural representation of the present utility model.
Among the figure: 1. insulator foot, 2. leveling nut, 3. accelerator card A, 4. lightweight conductive pellets, 5. parallel orbit, 6. accelerator card B, 7. deflecting plate A, 8. deflecting plate B
Embodiment
In the drawings: the lower surface of insulator foot (1) has leveling nut (2) for four jiaos, the upper surface left side of insulator foot (1) is fixed with accelerator card A (3) and accelerator card B (6), be fixed with parallel orbit (5) between accelerator card A (3) and the accelerator card B (6), lightweight conductive pellets (4) is placed in top at parallel orbit (5), there is vaulted aperture at accelerator card B (6) middle part, can allow lightweight conductive pellets (4) pass.Insulator foot (1) upper surface right side is placed with distance adjustable deflecting plate A (7) and deflecting plate B (8).
When carrying out class demonstration, lightweight conductive pellets (4) is placed on the parallel orbit (5), locate near accelerator card A (3), will speed up plate A (3) and accelerator card B (6) and receive the negative, positive of high-voltage power supply respectively and extremely go up.Energized just can form accelerating field between accelerator card A (3) and accelerator card B (6), lightweight conductive pellets (4) is attracted, and the Electrostatic Absorption phenomenon takes place, and is adsorbed on the accelerator card A (3); Lightweight electric globule (4) contacts with accelerator card A (3), has come in contact electrical phenomena.Lightweight conductive pellets (4) is in the accelerating field of accelerator card A (3) and accelerator card B (6) formation subsequently, and doing initial velocity is zero accelerated motion, finally passes from the vaulted aperture of accelerator card B (6) with a certain speed v.
Deflecting plate A (7) and deflecting plate B (8) are received respectively on the positive and negative electrode of power supply, and energized forms the deflecting electric field perpendicular to two deflecting plate.When the lightweight conductive pellets enters deflecting electric field with the initial velocity that is parallel to deflecting plate A (7), be subjected to electric field force perpendicular to the initial velocity direction, make lightweight electric globule (4) in deflecting electric field, realize deflection.
By above experiment, can be intuitively, qualitatively in acceleration and the deflection of the macroscopical electrified body of demonstration in electric field on the classroom.Can obtain good experiment effect.
Claims (2)
1. demonstrate the experimental provision that electric globule moves for one kind in electrostatic field, it is characterized in that: the end at insulator foot is fixed with two sheet metals parallel to each other, one of them sheet metal bottom has vaulted hole, be fixed with closed slide between the parallel-plate, place the lightweight bead on the closed slide, the opposite side of insulator foot also is placed with two parallel sheet metals, and placement direction is vertical with preceding two sheet metal directions.
2. experimental provision according to claim 1 is characterized in that: the lightweight bead is a conductive pellets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206087082U CN202049652U (en) | 2010-11-08 | 2010-11-08 | Experimental device for motion of charged particle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206087082U CN202049652U (en) | 2010-11-08 | 2010-11-08 | Experimental device for motion of charged particle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202049652U true CN202049652U (en) | 2011-11-23 |
Family
ID=44989953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206087082U Expired - Fee Related CN202049652U (en) | 2010-11-08 | 2010-11-08 | Experimental device for motion of charged particle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202049652U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105528945A (en) * | 2016-01-22 | 2016-04-27 | 复旦大学 | Static acceleration demonstration instrument |
| CN110757954A (en) * | 2019-10-31 | 2020-02-07 | 广州市贝云科技有限公司 | Spray head, ink jet printer and ink jet printing method |
-
2010
- 2010-11-08 CN CN2010206087082U patent/CN202049652U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105528945A (en) * | 2016-01-22 | 2016-04-27 | 复旦大学 | Static acceleration demonstration instrument |
| CN110757954A (en) * | 2019-10-31 | 2020-02-07 | 广州市贝云科技有限公司 | Spray head, ink jet printer and ink jet printing method |
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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: 20111123 Termination date: 20121108 |