CN203631038U - A single slit diffraction experimental instrument with variable angles - Google Patents
A single slit diffraction experimental instrument with variable angles Download PDFInfo
- Publication number
- CN203631038U CN203631038U CN201320894908.2U CN201320894908U CN203631038U CN 203631038 U CN203631038 U CN 203631038U CN 201320894908 U CN201320894908 U CN 201320894908U CN 203631038 U CN203631038 U CN 203631038U
- Authority
- CN
- China
- Prior art keywords
- slit
- iron plate
- angle
- screen
- variable
- 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 - Lifetime
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 48
- 229910052742 iron Inorganic materials 0.000 claims abstract description 24
- 238000002474 experimental method Methods 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
一种变角度的单缝衍射实验仪，属于大学物理教学实验仪器领域。主要由变角度狭缝、屏幕、激光笔构成，其特征是：变角度狭缝是由两个相同的表面光滑不透光直圆柱杆的一端靠在一起，另一端分别固定一铁片构成，变角度狭缝通过条形磁体竖直固定在水平放置的平铁板上；屏幕竖直固定在水平放置的平铁板的一端，使激光笔通过磁体吸附在水平放置的平铁板的另一端竖直固定的条形钢材质直杆上，且满足激光笔发出的光通过变角度狭缝可射到屏幕中心上。本实用新型专利它的独特之处是与现有技术不同，实现了在同一个狭缝下就能得出同级衍射条纹随着缝宽的增大衍射角变小现象，构思巧妙，制作极其简易，效果明显，在教学中推广会增加更多的教育功能。
The utility model relates to a single-slit diffraction experiment instrument with variable angle, which belongs to the field of university physics teaching experiment instruments. It is mainly composed of a variable-angle slit, a screen, and a laser pointer. Its characteristics are: the variable-angle slit is composed of two identical smooth-surfaced and opaque straight cylindrical rods, one end of which is close together, and the other end is respectively fixed with an iron plate. The variable-angle slit is vertically fixed on the horizontal flat iron plate through bar magnets; the screen is vertically fixed on one end of the horizontal flat iron plate, so that the laser pointer is attracted to the other end of the horizontal flat iron plate through the magnet The vertically fixed bar-shaped steel material is straight on the rod, and the light emitted by the laser pointer can be shot to the center of the screen through the variable-angle slit. The unique feature of this utility model patent is that it is different from the prior art. It realizes that the same level of diffraction fringes can be obtained under the same slit as the diffraction angle becomes smaller with the increase of the slit width. The concept is ingenious and the production is extremely It is simple and effective, and its promotion in teaching will add more educational functions.
Description
Technical field
The utility model patent relates to the diffraction experiment by narrow opening instrument of demonstrating a kind of varied angle, belongs to college physics teaching experimental apparatus field.
Background technology
In course of University Physics, fraunhofer single slit diffraction is one of important content in college physics teaching, its application is more extensive, as Young modulus for measuring metal etc., in order to make the understanding of student to slit diffraction, the slit (slit is wide) that people have designed in laboratory conventional different in width discrete or that continuously change carries out single slit diffraction experiment, also the width of the single-slit diffractometer that has patent CN00200751.7 design light by the changing slit bright dipping namely width of slit tested, etc., currently available technology, all can not realize a single low-power light source and on same screen, compare the impact of seam width on diffraction pattern simultaneously, and make the problems such as complicated, how to realize and being skillfully constructed, simple, cost is low, be convenient to the new experiment of student's exploratory development, this patent will address this problem.
Summary of the invention
The utility model patent is the physics demonstration experiment instrument that solves a kind of some features of more profoundly demonstrating single slit diffraction of using under classroom or class, solves emphatically single light source, same slit is realized the technology of single slit diffraction seam width on angle of diffraction impact.
The utility model patented technology scheme: a kind of diffraction experiment by narrow opening instrument of varied angle, mainly formed by varied angle slit, screen, laser pen, bar-shaped magnet, black iron plate, it is characterized in that: varied angle slit is to be close together by one end of two light tight straight cylinder bars of identical smooth surface (an opaque-plastic shell), the other end is fixed respectively an iron plate and is formed, hold iron plate with a bar-shaped magnet again, varied angle slit is vertically fixed on by bar-shaped magnet on the black iron plate of horizontal positioned; Screen is vertically fixed on one end of the black iron plate of horizontal positioned, laser pen tail end (other end of light hole) is fixed a magnet, make laser pen pass through magnet absorption (fixing) at the other end of the black iron plate of horizontal positioned vertically on the fixing upright bar of bar shaped steel, and meet the light that laser pen sends and can be mapped in screen center by varied angle slit.
When experiment, adjust the position of varied angle slit between screen and laser pen, then regulate the position of laser pen on straight-bar,, on screen, there is obvious clear diffraction pattern to reach laser pen LASER Light Source directive varied angle slit in angle (slit subtended angle) size that changes varied angle slit.When the angle of varied angle slit (1) is zero, regulate seam wide, be exactly single seam (slit is wide) diffractive situations that we know.
Can see, when the angle of varied angle slit is non-vanishing, it is narrow that diffraction pattern stitches narrow direction central diffraction disk near the wide direction of seam, along with wide the diminishing of seam, under same slit, just can show that like this diffraction fringe at the same level is along with stitching the wide increase angle of diffraction phenomenon that diminishes at the striped distance center at the same level of central fringe both sides.Contribute to single slit diffraction formula to understand, increase interestingly, novelty, excites the desire of exploration, and visual pattern is easy to comparative study, can also quantitative measurment research.
Its unique distinction of the utility model patent is unlike the prior art, realize and under same slit, just can show that diffraction fringe at the same level, along with the wide increase angle of diffraction of the seam phenomenon that diminishes, is skillfully constructed, made extremely simple and easy, successful, in teaching, promotion conference increases more educational function.
Accompanying drawing explanation
Accompanying drawing is the structural representation of the utility model patent.Wherein: (1) is varied angle slit, and (2) are screens, and (3) are laser pens, and (4) are bar-shaped magnets, (5) are black iron plates, and (6) are iron plates, and (7) are magnets
Embodiment
As accompanying drawing: a kind of diffraction experiment by narrow opening instrument of varied angle, mainly by varied angle slit (1), screen (2), laser pen (3), bar-shaped magnet (4), black iron plate (5) forms, it is characterized in that: varied angle slit (1) is to be close together by one end of two light tight straight cylinder bars of identical smooth surface (an opaque-plastic shell), the other end is fixed respectively an iron plate (6) and is formed, use again a bar-shaped magnet (4) to hold iron plate (6), varied angle slit (1) is vertically fixed on by bar-shaped magnet (4) on the black iron plate (5) of horizontal positioned, screen (2) is vertically fixed on one end of the black iron plate (5) of horizontal positioned, laser pen (3) tail end (other end of light hole) is fixed a magnet (7), make laser pen (3) by magnet (7) absorption (fix) the other end of the black iron plate (5) of horizontal positioned vertically the fixing upright bar of bar shaped steel (8) go up, and meet light that laser pen (3) sends and can be mapped in screen (2) in the heart by varied angle slit (1).
When experiment, adjust the position of varied angle slit (1) between screen (2) and laser pen (3), then regulate the position of laser pen (3) on straight-bar (8), change angle (slit subtended angle) size of varied angle slit (1), to reach laser pen (3) LASER Light Source directive varied angle slit (1) at the obvious clear diffraction pattern of the upper appearance of screen (2).When the angle of varied angle slit (1) is zero, regulate seam wide, be exactly single seam (slit is wide) diffractive situations that we know.
Described in this patent, varied angle Gap theory also can be realized by additive method mode, and as replaced straight cylinder bar etc. with ruler, and distortion on this patent basis all belongs to this patent protection domain.
Claims (1)
1. the diffraction experiment by narrow opening instrument of a varied angle, mainly formed by varied angle slit (1), screen (2), laser pen (3), bar-shaped magnet (4), black iron plate (5), it is characterized in that: varied angle slit (1) is to be close together by one end of two light tight straight cylinder bars of identical smooth surface, the other end is fixed respectively an iron plate (6) and is formed, use a bar-shaped magnet (4) to hold iron plate (6), varied angle slit (1) is vertically fixed on by bar-shaped magnet (4) on the black iron plate (5) of horizontal positioned again; Screen (2) is vertically fixed on one end of the black iron plate (5) of horizontal positioned, laser pen (3) tail end is fixed a magnet (7), vertically the fixing upright bar of bar shaped steel (8) is upper to make laser pen (3) be adsorbed on the other end of black iron plate (5) of horizontal positioned by magnet (7), and meets light that laser pen (3) sends and can be mapped in screen (2) in the heart by varied angle slit (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320894908.2U CN203631038U (en) | 2013-12-27 | 2013-12-27 | A single slit diffraction experimental instrument with variable angles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320894908.2U CN203631038U (en) | 2013-12-27 | 2013-12-27 | A single slit diffraction experimental instrument with variable angles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203631038U true CN203631038U (en) | 2014-06-04 |
Family
ID=50817495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320894908.2U Expired - Lifetime CN203631038U (en) | 2013-12-27 | 2013-12-27 | A single slit diffraction experimental instrument with variable angles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203631038U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680275A (en) * | 2013-12-27 | 2014-03-26 | 齐齐哈尔大学 | Variable-angle single slit diffraction experiment instrument |
-
2013
- 2013-12-27 CN CN201320894908.2U patent/CN203631038U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680275A (en) * | 2013-12-27 | 2014-03-26 | 齐齐哈尔大学 | Variable-angle single slit diffraction experiment instrument |
| CN103680275B (en) * | 2013-12-27 | 2016-07-06 | 齐齐哈尔大学 | A kind of diffraction experiment by narrow opening instrument of varied angle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103680275A (en) | Variable-angle single slit diffraction experiment instrument | |
| CN204423753U (en) | A kind of intersecting chord theorem inference teaching aid | |
| CN203631038U (en) | A single slit diffraction experimental instrument with variable angles | |
| CN2908190Y (en) | a triangular instrument | |
| CN202126785U (en) | Tester for Faraday's electromagnetic induction law | |
| CN206264654U (en) | A kind of national education board of education | |
| CN204010434U (en) | Double scale physical pendulum high-acruracy survey gravity acceleration experimental instrument | |
| CN203697786U (en) | Rectangular frame ellipse major axis, minor axis, original point and focus point determining instrument | |
| CN204184085U (en) | Multi-functional ruler-compasses plotter | |
| CN204423778U (en) | Slit arrangement | |
| CN203236913U (en) | Mathematics teaching ruler | |
| CN202331984U (en) | Demonstrator of common mathematical patterns | |
| CN205736540U (en) | A kind of teaching combination set chi | |
| CN205121988U (en) | Pointer | |
| CN203118301U (en) | Magnetic type rigid body rotation inertia experiment instrument | |
| CN203931324U (en) | Bidirectional cam apparatus for demonstrating | |
| CN204706254U (en) | A kind of magnetic damping pendulum | |
| CN202006677U (en) | Elliptic trammel | |
| CN202929903U (en) | An integral demonstrator | |
| CN204196523U (en) | Mathematic teaching rule | |
| CN204278869U (en) | A kind of multifunctional compass | |
| CN204359215U (en) | Protractor in a kind of mathematical education | |
| CN201646139U (en) | Compass with graduated scale | |
| CN205344255U (en) | A art designer's chi external member for art design | |
| CN201703130U (en) | Angle plotter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140604 Effective date of abandoning: 20160706 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |