CN216349482U - Confocal spherical scanning interference experimental device - Google Patents
Confocal spherical scanning interference experimental device Download PDFInfo
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- CN216349482U CN216349482U CN202122874010.6U CN202122874010U CN216349482U CN 216349482 U CN216349482 U CN 216349482U CN 202122874010 U CN202122874010 U CN 202122874010U CN 216349482 U CN216349482 U CN 216349482U
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- CPBQJMYROZQQJC-UHFFFAOYSA-N helium neon Chemical compound [He].[Ne] CPBQJMYROZQQJC-UHFFFAOYSA-N 0.000 claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 238000001125 extrusion Methods 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000005305 interferometry Methods 0.000 claims 3
- 238000005259 measurement Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 238000009434 installation Methods 0.000 description 15
- 230000005540 biological transmission Effects 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- Length Measuring Devices By Optical Means (AREA)
Abstract
The utility model discloses a confocal spherical scanning interference experimental device which comprises an operation table, wherein a first mounting plate and a second mounting plate are connected to the operation table through a sliding adjusting assembly, a fixed rod is fixed on the first mounting plate, a square plate is installed at the other end of the fixed rod, a helium-neon laser is installed on the square plate through a plurality of limiting mechanisms, and an operation box is installed on the second mounting plate. According to the confocal spherical scanning interference experimental device, in the process of carrying out experimental operation on the laser mode of the helium-neon laser, the laser modes at different time periods can be detected through the photoelectric detector in the outer cavity of the photoelectric detector, so that the measurement and analysis of different laser modes on the helium-neon laser are completed.
Description
Technical Field
The utility model belongs to the technical field of helium-neon laser experiments, and particularly relates to a confocal spherical scanning interference experimental device.
Background
He-ne laser, the first gas laser that has been successfully developed, and the most commonly used one, generally operates in the visible frequency range, typically on the order of several milliwatts, and emits light continuously.
In order to research a helium-neon laser conveniently, the laser mode of the helium-neon laser needs to be measured and analyzed through an experimental device, but the existing laser mode measurement experimental device of the helium-neon laser is complex in operation and difficult to adjust, and inconvenience is brought to the laser mode measurement process of the helium-neon laser.
The present invention has been made in view of this situation.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model adopts the technical scheme that:
the utility model provides a confocal sphere scanning interference experimental apparatus, includes the operation panel, be connected with first mounting panel and second mounting panel through sliding adjustment subassembly on the operation panel, be fixed with the dead lever on the first mounting panel, square board is installed to the other end of dead lever, square board is last to install helium neon laser through a plurality of stop gear, install the control box on the second mounting panel, the inside of control box is provided with confocal resonant cavity, photoelectric detector exocoel and light inlet, install preceding chamber mirror and back chamber mirror on the confocal resonant cavity, one side of back chamber mirror is provided with piezoceramics group, the internally mounted of photoelectric detector exocoel has photoelectric detector.
The front cavity mirror and the rear cavity mirror are reflectors, the curvature radii of the reflectors are equal, the front cavity mirror and the rear cavity mirror are arranged oppositely, and the distance between the front cavity mirror and the rear cavity mirror is equal to the radius of the reflectors.
The front cavity mirror, the rear cavity mirror and the helium-neon laser are arranged concentrically.
The slide adjusting assembly comprises a guide plate fixed on the operating table, the first mounting plate and the second mounting plate are connected to the guide plate in a sliding mode, threaded meshing is connected with a threaded rod on the first mounting plate and the second mounting plate, one end of the threaded rod is abutted to the guide plate, and the other end of the threaded rod is fixed with a rotating pin.
Stop gear is including fixing the installation pole on square board, the one end of installation pole is fixed with the installation pipe, sliding connection has a plurality of square poles on the installation pipe, each square pole is located the inside one end of installation pipe and is fixed with the arc stripper plate, be provided with on the installation pipe and be used for the driven drive assembly of each arc stripper plate.
The drive assembly is including rotating the annular plate of connection in installation pipe one end, the annular plate is by being provided with the spiral strip on the lateral wall to the installation pipe, sliding connection has a plurality of transmission pieces on the spiral strip, each the transmission piece is fixed mutually with each square pole respectively.
Compared with the prior art, the utility model has the following beneficial effects:
according to the confocal spherical scanning interference experimental device, in the process of carrying out experimental operation on the laser mode of the helium-neon laser, the laser modes at different time periods can be detected through the photoelectric detector in the outer cavity of the photoelectric detector, so that the measurement and analysis of different laser modes on the helium-neon laser are completed.
According to the confocal spherical scanning interference experimental device, in the process of limiting and fixing the helium-neon laser, the arc-shaped extrusion plates are abutted against the outer side wall of the helium-neon laser in the installation pipe through transmission, so that the helium-neon laser is limited and fixed, the helium-neon lasers with different outer diameter sizes can be quickly and stably limited and fixed, and the experimental operation efficiency is improved.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
In the drawings:
FIG. 1 is a schematic view of the overall configuration of the present invention;
FIG. 2 is a schematic view of the internal structure of the operation box of the present invention;
FIG. 3 is a schematic view of the internal structure of the limiting mechanism of the present invention;
FIG. 4 is an enlarged view taken at A in FIG. 2;
FIG. 5 is an enlarged view at B in FIG. 3;
fig. 6 is an enlarged view at C in fig. 3.
In the figure: 1-an operation table; 2-a first mounting plate; 3-a second mounting plate; 4-fixing the rod; 5-square plate; 6-he-ne laser; 7-operating box; 701-confocal resonant cavity; 702-a photodetector external cavity; 703-an optical input; 8-anterior chamber mirror; 9-a rear cavity mirror; 10-piezoelectric ceramic group; 11-a photodetector; 1201-a guide plate; 1202-threaded rod; 1203-rotation pin; 1301-mounting a rod; 1302-installing a tube; 1303-square bar; 1304-arc-shaped extrusion plates; 1305-a ring plate; 1306-helical strip; 1307-transmission block.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used to illustrate the present invention.
As shown in fig. 1 to 6, a confocal spherical scanning interference experimental apparatus includes an operation table 1, the operation table 1 is connected to a first mounting plate 2 and a second mounting plate 3 through a sliding adjustment assembly, a fixing rod 4 is fixed on the first mounting plate 2, a square plate 5 is installed at the other end of the fixing rod 4, a he-ne laser 6 is installed on the square plate 5 through a plurality of limiting mechanisms, an operation box 7 is installed on the second mounting plate 3, a confocal resonant cavity 701, a photodetector outer cavity 702 and a light inlet 703 are installed inside the operation box 7, a front cavity mirror 8 and a rear cavity mirror 9 are installed on the confocal resonant cavity 701, a piezoelectric ceramic group 10 is installed on one side of the rear cavity mirror 9, a photodetector 11 is installed inside the photodetector outer cavity 702, laser modes at different periods can be detected through the photodetector 11 inside the photodetector outer cavity 702, measurement and analysis of different laser modes on the he-ne laser 6 can be completed, the whole experimental device is simple to operate and convenient to adjust, and can effectively and stably carry out measurement and analysis on different laser modes of the helium-neon laser 6, so that experimental operation is facilitated.
The front cavity mirror 8 and the rear cavity mirror 9 are reflecting mirrors, the curvature radii of the reflecting mirrors are equal, the front cavity mirror 8 and the rear cavity mirror 9 are arranged oppositely, the distance between the front cavity mirror 8 and the rear cavity mirror 9 is equal to the radius of the front cavity mirror 8 and the rear cavity mirror 9, and a confocal resonant cavity 701 is formed in the operation box 7 conveniently.
The front cavity mirror 8, the rear cavity mirror 9 and the helium-neon laser 6 are concentrically arranged, and the concentric arrangement is more convenient for the light beam to be measured of the helium-neon laser 6 to irradiate the front cavity mirror 8 and the rear cavity mirror 9.
The sliding adjustment assembly comprises a guide plate 1201 fixed on the operating platform 1, the first mounting plate 2 and the second mounting plate 3 are slidably connected to the guide plate 1201, a threaded rod 1202 is connected to the first mounting plate 2 and the second mounting plate 3 in a threaded engagement mode, one end of the threaded rod 1202 is abutted to the guide plate 1201, a rotating pin 1203 is fixed to the other end of the threaded rod 1202, and the sliding adjustment assembly is convenient to adjust the distance between the first mounting plate 2 and the second mounting plate 3 and limit the distance.
Limiting mechanism is including fixing the installation pole 1301 on square board 5, the one end of installation pole 1301 is fixed with installation pipe 1302, sliding connection has a plurality of square poles 1303 on the installation pipe 1302, the inside one end that each square pole 1303 is located installation pipe 1302 is fixed with arc stripper plate 1304, be provided with on the installation pipe 1302 and be used for the driven drive assembly of each arc stripper plate 1304, through limiting mechanism, realize that rapid and stable carries out spacing fixedly to the helium neon laser 6 of different external diameter sizes, the efficiency of experimental operation has been improved.
The driving assembly comprises an annular plate 1305 which is rotatably connected to one end of the mounting pipe 1302, a spiral strip 1306 is arranged on the side wall, close to the mounting pipe 1302, of the annular plate 1305, a plurality of driving blocks 1307 are connected to the spiral strip 1306 in a sliding mode, each driving block 1307 is fixed with each square rod 1303 respectively, and through the driving assembly, the square rods 1303 can be driven to move close to or away from each other under the action of force.
In the process of experimental operation of the laser mode of the he-ne laser 6, firstly, the he-ne laser 6 penetrates through the mounting tube 1302 on the square plate 5, the circular plate 1305 rotates, in the process of rotation of the circular plate 1305, the square rods 1303 are driven to approach each other after being stressed under the driving action between the spiral strips 1306 and the transmission blocks 1307, and the arc-shaped extrusion plates 1304 abut against the outer side wall of the he-ne laser 6 inside the mounting tube 1302 through the forced approaching movement of the square rods 1303, so that the he-ne laser 6 is limited and fixed;
then, the relative position between the first mounting plate 2 and the second mounting plate 3 is adjusted in a sliding manner, after the adjustment is completed, the rotating pin 1203 drives the threaded rod 1202 to rotate, the threaded rod 1202 moves after being stressed and one end of the threaded rod is abutted against the guide plate 1201, and the limiting and fixing of the adjusted first mounting plate 2 and the adjusted second mounting plate 3 are completed;
finally, the he-ne laser 6 is started, the light beam emitted from the he-ne laser 6 enters the inside of the operation box 7 through the light inlet 703 on the operation box 7, because of the arrangement of the two reflectors of the front cavity mirror 8 and the back cavity mirror 9 inside the operation box 7, and the distance between the front cavity mirror 8 inside the operation box 7 is equal to the radius of the reflectors, a confocal resonant cavity 701 is formed between the front cavity mirror 8 and the back cavity mirror 9, the detected light beam enters the confocal resonant cavity 701 along the optical axis direction of the confocal resonant cavity 701, the detected light beam propagates back and forth for many times in the confocal resonant cavity 701, each time the detected light beam is reflected, a small part of the light is transmitted through the back cavity mirror 9 and escapes from the confocal resonant cavity 701, the light escaping for many times generates multi-light interference, and only the laser light with the wavelength satisfying kX-4nL (k is an integer) is emitted from the resonant cavity 701, namely the laser penetrates through the confocal resonant cavity 701, the voltage applied on the piezoelectric group 10 is changed, and then change confocal resonant cavity 701's chamber length to make the optical branch time quantum of different modes interfere the output, finally detect the laser mode of different periods through the inside photoelectric detector 11 of photoelectric detector exocoel 702, accomplish the measurement analysis to different laser modes on helium neon laser 6, whole experimental apparatus easy operation, adjust convenient, and can be effectively stable carry out measurement analysis to the different laser modes of helium neon laser 6, the experiment operation of being convenient for.
Claims (6)
1. A confocal spherical scanning interference experimental device comprises an operating platform (1) and is characterized in that, the operating platform (1) is connected with a first mounting plate (2) and a second mounting plate (3) through a sliding adjusting component, a fixed rod (4) is fixed on the first mounting plate (2), a square plate (5) is arranged at the other end of the fixed rod (4), the square plate (5) is provided with a helium-neon laser (6) through a plurality of limiting mechanisms, an operation box (7) is arranged on the second mounting plate (3), a confocal resonant cavity (701), a photoelectric detector external cavity (702) and a light inlet (703) are arranged in the operation box (7), a front cavity mirror (8) and a rear cavity mirror (9) are arranged on the confocal resonant cavity (701), one side of the rear cavity mirror (9) is provided with a piezoelectric ceramic group (10), and a photoelectric detector (11) is arranged in the photoelectric detector outer cavity (702).
2. A confocal spherical scanning interferometry experimental apparatus according to claim 1, wherein said front cavity mirror (8) and said rear cavity mirror (9) are reflecting mirrors and have equal radii of curvature, said front cavity mirror (8) and said rear cavity mirror (9) are disposed opposite to each other, and the distance between said front cavity mirror (8) and said rear cavity mirror (9) is equal to their radius.
3. The confocal spherical scanning interferometry experimental apparatus according to claim 2, wherein said front cavity mirror (8), said rear cavity mirror (9) and said he-ne laser (6) are concentrically arranged.
4. The confocal spherical scanning interferometry experimental apparatus according to claim 1, wherein the sliding adjustment assembly comprises a guide plate (1201) fixed on the operating table (1), the first mounting plate (2) and the second mounting plate (3) are slidably connected to the guide plate (1201), a threaded rod (1202) is connected to the first mounting plate (2) and the second mounting plate (3) in a threaded engagement manner, one end of the threaded rod (1202) abuts against the guide plate (1201), and a rotation pin (1203) is fixed to the other end of the threaded rod (1202).
5. The confocal spherical scanning interference experimental device according to claim 1, wherein the limiting mechanism comprises a mounting rod (1301) fixed on a square plate (5), a mounting tube (1302) is fixed at one end of the mounting rod (1301), a plurality of square rods (1303) are slidably connected onto the mounting tube (1302), an arc-shaped extrusion plate (1304) is fixed at one end of each square rod (1303) located inside the mounting tube (1302), and a driving assembly for driving each arc-shaped extrusion plate (1304) is arranged on the mounting tube (1302).
6. The confocal spherical scanning interference experimental device according to claim 5, wherein the driving assembly comprises an annular plate (1305) rotatably connected to one end of the mounting tube (1302), a spiral strip (1306) is arranged on the side wall of the annular plate (1305) close to the mounting tube (1302), a plurality of driving blocks (1307) are slidably connected to the spiral strip (1306), and each driving block (1307) is fixed to each square rod (1303).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122874010.6U CN216349482U (en) | 2021-11-23 | 2021-11-23 | Confocal spherical scanning interference experimental device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122874010.6U CN216349482U (en) | 2021-11-23 | 2021-11-23 | Confocal spherical scanning interference experimental device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216349482U true CN216349482U (en) | 2022-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122874010.6U Expired - Fee Related CN216349482U (en) | 2021-11-23 | 2021-11-23 | Confocal spherical scanning interference experimental device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216349482U (en) |
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2021
- 2021-11-23 CN CN202122874010.6U patent/CN216349482U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220419 |
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