CN202230653U - Newton's ring experimental apparatus for plane detection - Google Patents
Newton's ring experimental apparatus for plane detection Download PDFInfo
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- CN202230653U CN202230653U CN2011203235180U CN201120323518U CN202230653U CN 202230653 U CN202230653 U CN 202230653U CN 2011203235180 U CN2011203235180 U CN 2011203235180U CN 201120323518 U CN201120323518 U CN 201120323518U CN 202230653 U CN202230653 U CN 202230653U
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- nick
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Abstract
The utility model discloses a Newton's ring experimental apparatus for a plane detection. The Newton's ring experimental apparatus comprises a plane glass sheet, a fixed pressure ring, a supporting frame ring, a bolt and a threaded lower cover plate, further comprises a smooth flat plate with bulges or indentations, wherein the smooth flat plate with the bulges or the indentations is arranged in the supporting frame ring slot; the uneven whole surface faces upwards; the plane glass sheet is arranged above the flat plate with the bulges or the indentations; the fixed pressure ring is arranged on the upper surface of the plane glass sheet; the supporting frame ring and the fixed pressure ring are fixedly connected by the bolt, so that the plane glass sheet and the smooth flat plate with the bulges or the indentations are fixed, and the threaded lower cover plate is screwed and installed in the supporting frame ring. The Newton's ring experimental apparatus has a simple structure, convenience in observation, high measuring precision, and is convenient to popularize.
Description
Technical field
The utility model relates to a kind of optics teaching experimental apparatus, a kind of Newton ring plane test experience device of saying so more specifically.
Background technology
The Newton ring phenomenon be 1675 by Britain physicist newton when making astronomical telescope, accidental telescopical object lens are placed on found on the sheet glass.It is to utilize transparent dielectric film up and down two surfaces are to the reflection successively of incident light, and the amplitude of incident light resolves into the several sections with certain optical path difference, when they when film upper surface point meets, produce equal thick interference fringe.Because EXPERIMENT OF NEWTON ' S has and representes optics localization interference simply brightly, therefore receive special attention, as the main experiment of optical interference experiment always.Existing EXPERIMENT OF NEWTON ' S is mainly used in the radius-of-curvature experiment of measuring convex lens; Because experimental technique is simple on the low side with experiment content, it is short that the student accomplishes time of experimental implementation during experiment, undertrained to the student; Application understanding to localization is interfered is less, and experiment effect is had a greatly reduced quality.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provide a kind of simple in structure, observe convenient, measuring accuracy is high, and is convenient to the Newton ring plane test experience device of penetration and promotion.
The technical scheme that the utility model solves the problems of the technologies described above is: comprise flat glass sheet, fixed pressure ring, bracing frame ring, screw and screw thread lower cover; Comprise that also a slice has raised or sunken smooth plates; Describedly have raised or sunken smooth plates and be placed in the bracing frame annular groove, out-of-flatness faces upwards, and the flat glass sheet is placed in and has on the raised or sunken smooth plates; On the flat glass sheet, install and fix pressure ring; With screw the bracing frame ring is fixedly connected with fixed pressure ring, thus the fixed pan glass sheet with have a raised or sunken smooth plates, the screw thread lower cover screws in and is installed in the bracing frame ring.
Further, the raised or sunken height of said smooth plates is less than 60 microns.
Further, the said irregularity degree face that has raised or sunken smooth plates is the convex surface of middle dimpling.
Further, the said irregularity degree face that has raised or sunken smooth plates is the concave surface of middle nick.
Further, the said irregularity degree face that has raised or sunken smooth plates is that middle dimpling goes out, then around under the nick, the male and fomale(M&F) of final edge microprotrusion.
Further, the said irregularity degree face that has raised or sunken smooth plates is that middle nick advances, then around microprotrusion, the male and fomale(M&F) under the final edge nick.
Further, the said irregularity degree face that has raised or sunken smooth plates is to have the arc surface nick of several different radiis to advance in the whole plane.
Further, the said irregularity degree face that has raised or sunken smooth plates is to have many dimplings to go out with nick in the whole plane.
Because adopt technique scheme, the beneficial effect of the utility model is:
(1) Newton ring plane test experience has raised or sunken smooth plates as long as on the traditional Newton loop device, change; Through changing the smooth plates of different flatness; Can obtain various abundant candy strips; The equal thick interference fringe of various distinctnesses makes the student produce curious sense, has improved students'interest in learning, has improved experiment effect.
(2) Newton ring plane test experience has provided the real world applications of Newton ring, has increased a large amount of experiment contents, has strengthened experimental implementation training link, has expanded ken, open student's outlook, suitable penetration and promotion.
(3) this Newton ring plane test experience apparatus structure is simple, compact, easy to manufacture, and cost is low, uses and changes fast, has expanded the functions of use of Newton ring, and need not to increase new equipment input, is convenient to marketing.
Description of drawings
Fig. 1 is the utility model Newton ring plane test experience apparatus structure synoptic diagram.
Fig. 2 forms the installation drawing of dark interference fringe experiment for the raised or sunken smooth plates that has of the utility model is smooth plane on whole plane.
Fig. 3 is shaped as the convex surface Experimental equipment that middle dimpling goes out for the raised or sunken smooth plates that has of the utility model.
Fig. 4 is shaped as the concave surface Experimental equipment that middle nick advances for the raised or sunken smooth plates that has of the utility model.
Fig. 5 for the utility model have raised or sunken smooth plates be shaped as in the middle of dimpling go out, then around under the nick, the Experimental equipment of final edge microprotrusion.
Fig. 6 for the utility model have raised or sunken smooth plates be shaped as in the middle of nick advance, then around microprotrusion, Experimental equipment under the final edge nick.
Fig. 7 advances Experimental equipment for the arc surface nick that raised or sunken smooth plates is shaped as several different radiis that has of the utility model.
Fig. 8 is shaped as many dimplings and goes out with nick to advance Experimental equipment for the raised or sunken smooth plates that has of the utility model.
Fig. 9 detects the experiments of measuring installation drawing for the Newton ring plane.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation.
As shown in Figure 1; The utility model comprises a slice flat glass 1 and has raised or sunken smooth plates 2, has raised or sunken smooth plates 2 and is placed in bracing frame ring 3 grooves, and out-of-flatness faces upwards; Flat glass 1 is placed in and has on the raised or sunken smooth plates 2; On flat glass 1, install and fix pressure ring 4, with screw 5 bracing frame ring 3 be fixedly connected with fixed pressure ring 4 then, thus fixed pan glass 1 with have raised or sunken smooth plates 2.In screw thread lower cover 6 screws in bracing frame rings 3, even have raised or sunken smooth plates and also can do plane of reflection test experience for transparent; When taking off screw thread lower cover 6, have raised or sunken smooth plates and can do the transmission plane test experience for transparent.Have raised or sunken smooth plates 2 and have that dimpling face, nick face, middle dimpling go out on every side nick lower limb microprotrusion, middle nick advance on every side microprotrusion edge nick under, the arc surface nick of several different radiis advances, dimpling goes out and multiple situation such as nick advances.Monochromatic light is radiated on the flat glass, and through flat glass, through the reflection of out-of-flatness smooth flat, forms equal thick interference fringe at the flat glass lower surface again, realizes the irregularity degree experiments of measuring of the smooth plates of different irregularity degreees.
As shown in Figure 9, the Newton ring plane is detected the experiments of measuring device and is comprised eyepiece 9, object lens 10, reflecting glass sheet 13, monochromatic source 11, Newton ring plane test experience device 12, objective table 14, reflective mirror 15, micrometer caliper 7 and object lens control hand wheel 8.Newton ring plane test experience device 12 is positioned on the objective table 14; Reflecting glass sheet 13 also is positioned on the flat glass sheet that is on the objective table 14 in the Newton ring plane test experience device 12, and monochromatic light is radiated on the reflecting glass sheet 13, reflexes on the flat glass sheet; And through the flat glass sheet; The raised or sunken smooth plates 2 that has in Newton ring plane test experience device 12 reflects again, forms equal thick interference fringe at flat glass sheet 1 lower surface, through regulating object lens control hand wheel 8; Transfer object lens control hand wheel 8 to observe interference fringe clear till; Rotating screw mircrometer gauge 7 is on the striped Crape ring line cross hair intersection point in the eyepiece 9, and the ring grain that rotating screw mircrometer gauge 7 is write down between the ring grain break-in is counted k, the difference in height h of k bar ring grain
kAccording to formula h is arranged
k=k λ/2, wherein λ is monochromatic wavelength, calculates the difference in height of out-of-flatness smooth flat thus, confirms the smooth wrinkle grade in plane according to the height extent.
In conjunction with accompanying drawing 1 and accompanying drawing 9, when having raised or sunken smooth plates 2 materials and be transparent medium, screw off the screw thread lower cover 6 of Newton ring plane test experience device; Monochromatic light is radiated on the catoptron; Reflex on the transparent out-of-flatness smooth plates element, and through transparent raised or sunken smooth plates 2 elements that have, again through 1 reflection of flat glass sheet; Form the transmission equal thick interference fringe at flat glass sheet 1 lower surface; Through regulating object lens control hand wheel 8, regulate object lens control hand wheel 8 to observe interference fringe clear till, rotating screw mircrometer gauge 7 is on the striped Crape ring line cross hair intersection point in the eyepiece 9; The ring grain that rotating screw mircrometer gauge 7 is write down between the ring grain break-in is counted k, according to formula h
k=k λ/2, wherein λ is monochromatic wavelength, calculates the difference in height of the smooth plates 2 of band irregularity degree thus, confirms the smooth wrinkle grade in plane according to the height extent.
In conjunction with accompanying drawing 2, Newton ring plane test experience device is by the standard flat calibrated tester that smooth smooth plates and flat glass are formed is housed; Help dark interference fringe picture in whole planar shaped, show that smooth smooth plates grade of finish is the highest; If seldom several light and dark stripeds are arranged, according to formula h
k=k λ/2, wherein λ is monochromatic wavelength, shows that smooth smooth plates grade of finish is very high.
In conjunction with accompanying drawing 3, Newton ring plane test experience device goes out the plane pick-up unit that the low out-of-flatness smooth plates in edge and flat glass are formed by dimpling in the middle of being equipped with; Form light and dark annulus interference fringe picture on whole plane, middle for dark fringe circle spot, if seldom several light and dark annulus stripeds are arranged, according to formula h
k=k λ/2, wherein λ is monochromatic wavelength, shows that irregular smooth plates grade of finish is very high; If the light and dark annulus striped of a lot of bars is arranged, according to formula h
k=k λ/2, wherein λ is monochromatic wavelength, shows that irregular smooth plates grade of finish is low.
In conjunction with accompanying drawing 4, Newton ring plane test experience device advances the plane pick-up unit that the high out-of-flatness smooth plates in edge and flat glass are formed by nick in the middle of being equipped with; Form light and dark annulus interference fringe picture on whole plane, the edge is the dark fringe annulus, and is middle for the circle spot maybe secretly also possibility be bright, if seldom several light and dark annulus stripeds are arranged, according to formula h
k=k λ/2, wherein λ is monochromatic wavelength, shows that irregular smooth plates grade of finish is very high; If the light and dark annulus striped of a lot of bars is arranged, according to formula h
k=k λ/2, wherein λ is monochromatic wavelength, shows that irregular smooth plates grade of finish is low.
In conjunction with accompanying drawing 5, Newton ring plane test experience device is gone out by dimpling in the middle of being equipped with, then around under the nick, the plane pick-up unit of the out-of-flatness smooth plates of final edge microprotrusion and flat glass composition.Form light and dark annulus interference fringe picture on whole plane, middle is dark fringe circle spot, and the edge maybe be for secretly also being the bright fringe annulus, as if seldom several light and dark annulus stripeds are arranged, according to formula h
k=k λ/2, wherein λ is monochromatic wavelength, shows that irregular smooth plates grade of finish is very high; If the light and dark annulus striped of a lot of bars is arranged, according to formula h
k=k λ/2, wherein λ is monochromatic wavelength, shows that irregular smooth plates grade of finish is low.
In conjunction with accompanying drawing 6, Newton ring plane test experience device is advanced by nick in the middle of being equipped with, then around microprotrusion, the plane pick-up unit of out-of-flatness smooth plates the final edge nick under and flat glass composition; Form light and dark annulus interference fringe picture on whole plane, middle for the circle spot maybe secretly also possibility be bright, the edge maybe be for secretly also being the bright fringe annulus, if seldom several light and dark annulus stripeds are arranged, according to formula h
k=k λ/2, wherein λ is monochromatic wavelength, shows that irregular smooth plates grade of finish is very high; If the light and dark annulus striped of a lot of bars is arranged, according to formula h
k=k λ/2, wherein λ is monochromatic wavelength, shows that irregular smooth plates grade of finish is low.
In conjunction with accompanying drawing 7, the plane pick-up unit that out-of-flatness smooth plates that Newton ring plane test experience device is advanced by the arc surface nick that several different radiis are housed and flat glass are formed; Flat forms dark interference fringe picture on whole plane, and nick enters the arc surface zone and is light and dark annulus striped, if seldom several light and dark annulus stripeds are arranged, according to formula h
k=k λ/2, wherein λ is monochromatic wavelength, shows that irregular smooth plates grade of finish is very high; If the light and dark annulus striped of a lot of bars is arranged, according to formula h
k=k λ/2, wherein λ is monochromatic wavelength, shows that irregular smooth plates grade of finish is low.
In conjunction with accompanying drawing 8, Newton ring plane test experience device the plane pick-up unit that the out-of-flatness smooth plates advanced with nick and flat glass are formed by many dimplings are housed; Form the light and dark interference fringe of many chance forms on whole plane, if seldom several light and dark chance form stripeds are arranged, according to formula h
k=k λ/2, wherein λ is monochromatic wavelength, shows that irregular smooth plates grade of finish is very high; If the light and dark chance form striped of a lot of bars is arranged, according to formula h
k=k λ/2, wherein λ is monochromatic wavelength, shows that irregular smooth plates grade of finish is low.
Claims (8)
1. a Newton ring plane test experience device comprises flat glass sheet, fixed pressure ring, bracing frame ring, screw and screw thread lower cover, it is characterized in that; Also comprise and have raised or sunken smooth plates; Describedly have raised or sunken smooth plates and be placed in the bracing frame annular groove, out-of-flatness faces upwards, and the flat glass sheet is placed in and has on the raised or sunken smooth plates; On the flat glass sheet, install and fix pressure ring; With screw the bracing frame ring is fixedly connected with fixed pressure ring, thus the fixed pan glass sheet with have a raised or sunken smooth plates, the screw thread lower cover screws in and is installed in the bracing frame ring.
2. Newton ring according to claim 1 plane test experience device is characterized in that: the raised or sunken height of said smooth plates is less than 60 microns.
3. Newton ring according to claim 2 plane test experience device is characterized in that: the said irregularity degree face that has raised or sunken smooth plates is the convex surface of middle dimpling.
4. Newton ring according to claim 2 plane test experience device is characterized in that: the said irregularity degree face that has raised or sunken smooth plates is the concave surface of middle nick.
5. Newton ring according to claim 2 plane test experience device is characterized in that: the said irregularity degree face that has raised or sunken smooth plates is that middle dimpling goes out, then around under the nick, the male and fomale(M&F) of final edge microprotrusion.
6. Newton ring according to claim 2 plane test experience device is characterized in that: the said irregularity degree face that has raised or sunken smooth plates is that middle nick advances, then around microprotrusion, the male and fomale(M&F) under the final edge nick.
7. Newton ring according to claim 2 plane test experience device is characterized in that: the said irregularity degree face that has raised or sunken smooth plates is to have the arc surface nick of several different radiis to advance in the whole plane.
8. Newton ring according to claim 2 plane test experience device is characterized in that: the said irregularity degree face that has raised or sunken smooth plates is to have many dimplings to go out with nick in the whole plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203235180U CN202230653U (en) | 2011-08-31 | 2011-08-31 | Newton's ring experimental apparatus for plane detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203235180U CN202230653U (en) | 2011-08-31 | 2011-08-31 | Newton's ring experimental apparatus for plane detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202230653U true CN202230653U (en) | 2012-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203235180U Expired - Fee Related CN202230653U (en) | 2011-08-31 | 2011-08-31 | Newton's ring experimental apparatus for plane detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202230653U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106596256A (en) * | 2016-12-13 | 2017-04-26 | 西安科技大学 | Apparatus suitable for measuring bending rigidity, elasticity modulus, shear modulus and bulk modulus |
-
2011
- 2011-08-31 CN CN2011203235180U patent/CN202230653U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106596256A (en) * | 2016-12-13 | 2017-04-26 | 西安科技大学 | Apparatus suitable for measuring bending rigidity, elasticity modulus, shear modulus and bulk modulus |
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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 |
Granted publication date: 20120523 Termination date: 20140831 |
|
| EXPY | Termination of patent right or utility model |