CN211234739U - Light speed measuring instrument prism interval adjusting guide rail - Google Patents
Light speed measuring instrument prism interval adjusting guide rail Download PDFInfo
- Publication number
- CN211234739U CN211234739U CN201922391669.9U CN201922391669U CN211234739U CN 211234739 U CN211234739 U CN 211234739U CN 201922391669 U CN201922391669 U CN 201922391669U CN 211234739 U CN211234739 U CN 211234739U
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- guide rail
- prism
- shaped
- fixed connection
- bottom plate
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Abstract
The utility model discloses a light speed measuring apparatu prism interval adjusts guide rail, including the bottom plate, characterized by: bottom plate upside one end middle part fixed connection U-shaped ya keli board two riser lower extremes, two riser lower parts of U-shaped ya keli board are equipped with the spout of symmetry respectively, U-shaped ya keli board upside one end fixed connection scale downside, bottom plate upside one end fixed connection erection column lower extreme respectively, two the erection column is located respectively both ends in the U-shaped ya keli board, two fixed connection slide bar downside one end respectively is gone up to the erection column, the slide bar is located in the slide block, slide block upside middle part fixed connection right angle refractor lower extreme, the utility model relates to a light speed measurement guide rail field, specifically says, relates to a light speed measuring apparatu prism interval adjusts guide rail. The device can adjust the distance between the right-angle refractor and the laser according to the sliding block, and can observe different states of light rays with different distances.
Description
Technical Field
The utility model relates to a light speed measurement guide rail field specifically says, relates to a light speed measuring apparatu prism interval adjusts guide rail.
Background
The accurate determination of the light velocity plays an important role in the development of physics, and the theoretical value of the electromagnetic wave velocity in vacuum is close to the light velocity measured in an experiment, so that Maxwell predicted light is an electromagnetic wave; the light velocity is measured in the Michelson-Morel experiment, so that the conclusion that the light velocities in different inertial systems and different directions are not changed is obtained, the existence of ether is denied, and the foundation is laid for the Einstein narrow-sense relativity theory; the light speed is generally measured by adopting a light shooting method in teaching in a college laboratory, the cost is not high, and the measurement can be visually and conveniently completed on a laboratory table. The measurement accuracy mainly relates to the phase difference of long-range light and process light on the oscilloscope when the light speed is measured to the photonics method, but if operate incorrectly, will produce false phase shift, influence the measurement accuracy of light speed, short-range light adjusts the light path comparatively easily during the experiment, but long-range light is because far away from photodiode, it is comparatively difficult on consequently adjusting long-range light incidence photosensitive surface, make student's experiment difficult to accomplish, traditional measurement method is mostly experimental through removing the prism, but just can only measure the light of process for one-way transmission light through removing the prism, show unclear to long-range light, so need urgently be in making a light speed measuring apparatu prism interval adjustment guide rail.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a light velocity measuring instrument prism interval adjustment guide rail for carry out the interval when light realizes and adjust.
The utility model adopts the following technical scheme to realize the purpose of the invention:
the utility model provides a light speed measuring apparatu prism interval adjusts guide rail, includes the bottom plate, characterized by:
the middle part of one end of the upper side of the bottom plate is fixedly connected with the lower ends of two vertical plates of the U-shaped acrylic plate, the lower parts of the two vertical plates of the U-shaped acrylic plate are respectively provided with symmetrical sliding grooves, and one end of the upper side of the U-shaped acrylic plate is fixedly connected with the lower side of a scale;
one end of the upper side of the bottom plate is fixedly connected with the lower ends of the mounting columns respectively, the two mounting columns are located at two ends in the U-shaped acrylic plate respectively, and the upper ends of the two mounting columns are fixedly connected with one end of the lower side of the sliding rod respectively;
the sliding rod is arranged in the sliding block, the middle part of the upper side of the sliding block is fixedly connected with the lower end of the right-angle refractor, and the middle part of one side of the sliding block is fixedly connected with one end of a cross rod of the L-shaped rod;
the horizontal pole of L shape pole passes one the spout, the montant upper end of L shape pole with U-shaped ya keli board upper end parallel and level, L shape pole upper end fixed connection pointer downside one end.
As a further limitation of the technical scheme, one end of the upper side of the bottom plate, corresponding to the lower end of the U-shaped acrylic plate, is fixedly connected with the lower end of a rack, the rack is meshed with a gear, one end of the gear is hinged to the middle of one side of the sliding block, a connecting shaft at the other end of the gear penetrates through the corresponding sliding grooves, the connecting shaft at the other end of the gear is fixedly connected with the middle of one side of the rotary table, and two jackscrews I are respectively in threaded connection with and penetrate through two eccentric positions of the rotary table I.
As a further limitation of the technical scheme, one end of the upper side of the base plate is fixedly connected with the lower ends of the symmetrical vertical plates, the upper ends of the two opposite sides of the vertical plates are respectively hinged with the middle part of one end of a triangular prism, a circular shaft in the middle of one side of the triangular prism is hinged and penetrates through the corresponding vertical plates, and one end of the circular shaft of the triangular prism is fixedly connected with the middle part of the second side of the rotary table.
As a further limitation of the technical scheme, one end of the jackscrew II is in threaded connection with and penetrates through the eccentric part of the rotary disc II.
As a further limitation of the technical solution, one end of the upper side of the base plate corresponding to the two vertical plates is fixedly connected to the lower side of the laser.
As the further limitation of the technical scheme, the lower side of the pointer is attached to the upper side of the U-shaped acrylic plate, the tip of the pointer points to the scale end of the scale, and the included angle between the upper side of the sliding block and the inner surface of the lower portion of the right-angle refractor is 135 degrees.
Compared with the prior art, the utility model discloses an advantage is with positive effect:
1. the device can adjust the distance between the right-angle refractor and the laser according to the sliding block, and can observe different states of light rays with different distances.
2. This device can realize taking place the refraction according to right angle refractor with the light of laser instrument, required area when having reduced the experiment.
3. The device can realize the observation of the states of different refraction angles of the refracted light beams through the rotating triple prism.
Drawings
Fig. 1 is a schematic view of a three-dimensional structure of the present invention.
Fig. 2 is a schematic view of a three-dimensional structure of the present invention.
Fig. 3 is a schematic view of a connection structure of parts according to the present invention.
Fig. 4 is a schematic view of a connection structure of parts according to the present invention.
Fig. 5 is a third schematic view of the connection structure of some parts of the present invention.
Fig. 6 is a schematic view of a connection structure of parts according to the present invention.
Fig. 7 is a schematic view showing a connection structure of a part of the U-shaped acrylic plate 1 after being cut.
Fig. 8 is a schematic view of a connection structure of a part of the U-shaped acrylic plate 1 after being cut.
In the figure: 1. u-shaped acrylic plate, 2, scale, 4, prism, 5, laser instrument, 6, riser, 7, bottom plate, 9, spout, 10, L shape pole, 11, pointer, 12, right angle refractor, 13, gear, 14, carousel one, 15, slider, 16, jackscrew one, 17, carousel two, 18, jackscrew two, 19, erection column, 20, slide bar, 21, rack.
Detailed Description
In the following, an embodiment of the present invention will be described in detail with reference to the drawings, but it should be understood that the scope of the present invention is not limited by the embodiment.
As shown in fig. 1 to 8, the present invention includes a bottom plate 7,
the middle part of one end of the upper side of the bottom plate 7 is fixedly connected with the lower ends of two vertical plates of the U-shaped acrylic plate 1, the lower parts of the two vertical plates of the U-shaped acrylic plate 1 are respectively provided with symmetrical sliding grooves 9, and one end of the upper side of the U-shaped acrylic plate 1 is fixedly connected with the lower side of the scale 2;
one end of the upper side of the bottom plate 7 is fixedly connected with the lower ends of mounting columns 19 respectively, the two mounting columns 19 are located at two ends in the U-shaped acrylic plate 1 respectively, and the upper ends of the two mounting columns 19 are fixedly connected with one end of the lower side of a sliding rod 20 respectively;
the sliding rod 20 is arranged in the sliding block 15, the middle part of the upper side of the sliding block 15 is fixedly connected with the lower end of the right-angle refractor 12, and the middle part of one side of the sliding block 15 is fixedly connected with one end of a cross rod of the L-shaped rod 10;
the horizontal pole of L shape pole 10 passes one spout 9, the montant upper end of L shape pole 10 with 1 upper end parallel and level of U-shaped inferior gram force board, the upper end fixed connection pointer 11 downside one end of L shape pole 10.
The lower end of a rack 21 is fixedly connected to one end of the upper side of the bottom plate 7 corresponding to the lower end of the U-shaped acrylic plate 1, the rack 21 is meshed with a gear 13, one end of the gear 13 is hinged to the middle of one side of the sliding block 15, a connecting shaft at the other end of the gear 13 penetrates through the corresponding sliding groove 9, the connecting shaft at the other end of the gear 13 is fixedly connected to the middle of one side of a first rotating disc 14, and two first jackscrews 16 penetrate through two eccentric positions of the first rotating disc 14 in a threaded connection mode respectively.
One end of the upper side of the bottom plate 7 is fixedly connected with the lower ends of the symmetrical vertical plates 6, the upper ends of the opposite sides of the two vertical plates 6 are respectively hinged with the middle part of one end of the triangular prism 4, a circular shaft in the middle of one side of the triangular prism 4 penetrates through the corresponding vertical plate 6 in a hinged mode, and one end of the circular shaft of the triangular prism 4 is fixedly connected with the middle part of one side of the second rotating disc 17.
One end of the second jackscrew 18 is in threaded connection with and penetrates through the eccentric part of the second rotary table 17.
One end of the upper side of the bottom plate 7 corresponding to the two vertical plates 6 is fixedly connected with the lower side of the laser 5.
The lower side of the pointer 11 is attached to the upper side of the U-shaped acrylic plate 1, the pointer tip of the pointer 11 points to the scale end of the scale 2, and the included angle between the upper side of the sliding block 15 and the inner surface of the lower portion of the right-angle refractor 12 is 135 degrees.
The utility model discloses a work flow does: before using, the bottom of the prism 4 is parallel to the bottom plate 7, the slide block 15 is located at one end of the slide rod 20, the slide block 15 is located at one end close to the prism 4, the pointer 11 points to zero scale, when the device is used, the laser 5 is started, the laser 5 emits light beams to the lower side mirror surface of the right-angle refractor 12, the light beams are refracted to the upper side mirror surface through the mirror surface of the right-angle refractor 12, the light beams are refracted to the surface of the prism 4 through the upper side mirror surface of the right-angle refractor 12, the light beams are observed at zero scale, after recording, the jackscrew II 18 is screwed down, the prism 4 is rotated through the rotary disc II 17, after the prism 4 is adjusted to a certain angle, the jackscrew II 18 is screwed down to the corresponding vertical plate 6, the jackscrew II 18 is screwed down again, the prism 4 is adjusted to various angles, the light beam refraction condition is observed, the operation process is the, after recording, after the triangular prism 4 is restored to the initial state, the first rotating disc 14 is rotated, the first rotating disc 14 drives the gear 13 to rotate along the rack 21 meshed with the gear, the gear 13 slides along the direction far away from the triangular prism 4 while rotating along the rack 21, the gear 13 drives the slider 15 to slide along the corresponding slide rod 20 towards the direction far away from the triangular prism 4, the slider 15 simultaneously drives the right-angle refractor 12 and the L-shaped rod 10 to slide towards the direction far away from the triangular prism 4, the L-shaped rod 10 drives the pointer 11 to slide along the upper side of the U-shaped acrylic plate 1, the pointer 11 points to the scale 2 to record the movement distance, when the pointer 11 slides to a certain distance, the first rotating disc 14 is informed, one jackscrew 16 is screwed down to the side of the U-shaped acrylic plate 1, the situation that one jackscrew 16 slides into the chute 9 happens, the other jackscrew 16 can also push down to the side of the U-shaped acrylic plate 1, and the position of the right-angle refractor, record the refraction condition of different distance light beams, adjust the prism 4 angle once more, observe the light beam refraction condition of the different angles of record different distances, adjust the angle of 12 distances of right angle refractor and prism 4 many times, observe the refraction condition of record light beam, after observing, resume the device to initial position.
The above disclosure is only one specific embodiment of the present invention, however, the present invention is not limited thereto, and any changes that can be considered by those skilled in the art should fall within the protection scope of the present invention.
Claims (6)
1. The utility model provides a light speed measuring apparatu prism interval adjusts guide rail, includes bottom plate (7), characterized by:
the middle part of one end of the upper side of the bottom plate (7) is fixedly connected with the lower ends of two vertical plates of the U-shaped acrylic plate (1), the lower parts of the two vertical plates of the U-shaped acrylic plate (1) are respectively provided with symmetrical sliding grooves (9), and one end of the upper side of the U-shaped acrylic plate (1) is fixedly connected with the lower side of the scale (2);
one end of the upper side of the bottom plate (7) is fixedly connected with the lower ends of mounting columns (19) respectively, the two mounting columns (19) are located at two ends in the U-shaped acrylic plate (1) respectively, and the upper ends of the two mounting columns (19) are fixedly connected with one end of the lower side of a sliding rod (20) respectively;
the sliding rod (20) is arranged in the sliding block (15), the middle of the upper side of the sliding block (15) is fixedly connected with the lower end of the right-angle refractor (12), and the middle of one side of the sliding block (15) is fixedly connected with one end of a cross rod of the L-shaped rod (10);
the horizontal pole of L shape pole (10) passes one spout (9), the montant upper end of L shape pole (10) with U-shaped ya keli board (1) upper end parallel and level, L shape pole (10) upper end fixed connection pointer (11) downside one end.
2. The guide rail for adjusting the prism pitch of a light speed measuring instrument according to claim 1, wherein: correspond U-shaped ya keli board (1) lower extreme place bottom plate (7) upside one end fixed connection rack (21) lower extreme, rack (21) and gear (13) meshing, gear (13) one end is articulated slider (15) one side middle part, gear (13) other end connecting axle passes correspondingly spout (9), gear (13) other end connecting axle fixed connection carousel one (14) one side middle part, two jackscrew one (16) threaded connection pass respectively the eccentric department in two places of carousel one (14).
3. The guide rail for adjusting the prism pitch of a light speed measuring instrument according to claim 2, wherein: bottom plate (7) upside one end fixed connection riser (6) lower extreme of symmetry, two riser (6) relative one side upper end articulates prism (4) one end middle part respectively, prism (4) one side middle part circle axle is articulated to pass and corresponds riser (6), the circle axle one end fixed connection carousel two (17) one side middle part of prism (4).
4. The light speed measuring instrument prism spacing adjustment guide rail according to claim 3, characterized in that: one end of the second jackscrew (18) is in threaded connection with the eccentric part of the second rotary table (17).
5. The light speed measuring instrument prism spacing adjustment guide rail according to claim 3, characterized in that: one end of the upper side of the bottom plate (7) corresponding to the two vertical plates (6) is fixedly connected with the lower side of the laser (5).
6. The guide rail for adjusting the prism pitch of a light speed measuring instrument according to claim 1, wherein: pointer (11) downside laminating U-shaped ya keli board (1) upside, pointer (11) pointer tip points to the scale end of scale (2), slider (15) upside with the contained angle of right angle refractor (12) lower part internal surface is 135 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922391669.9U CN211234739U (en) | 2019-12-27 | 2019-12-27 | Light speed measuring instrument prism interval adjusting guide rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922391669.9U CN211234739U (en) | 2019-12-27 | 2019-12-27 | Light speed measuring instrument prism interval adjusting guide rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211234739U true CN211234739U (en) | 2020-08-11 |
Family
ID=71923615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922391669.9U Expired - Fee Related CN211234739U (en) | 2019-12-27 | 2019-12-27 | Light speed measuring instrument prism interval adjusting guide rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211234739U (en) |
-
2019
- 2019-12-27 CN CN201922391669.9U patent/CN211234739U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200811 Termination date: 20201227 |
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| CF01 | Termination of patent right due to non-payment of annual fee |