Double-slit interference experiment device

Abstract

The utility model discloses a double-slit interference experiment device, relates to the technical field of double-slit interference experiments, and aims to solve the problem that a conventional device is inconvenient to carry by a teacher due to a split structure after being used. The handle is mounted at the upper end of the digital galvanometer; the first guide rail is installed at the rear end of the digital galvanometer, a second guide rail is installed at the rear end of the first guide rail, the second guide rail is rotationally connected with the first guide rail through a damping hinge, and a first sliding block, a second sliding block and a third sliding block are installed on the first guide rail and the second guide rail; the front end of the first guide rail is connected with the digital galvanometer through a mounting piece and a screw; the one-dimensional light intensity measuring instrument is installed at the upper end of the first sliding block, and the one-dimensional light intensity measuring instrument is electrically connected with the digital galvanometer; the double-slit-piece U-shaped clamping base is installed at the upper end of the second sliding block, and a first bolt is installed on the double-slit-piece U-shaped clamping base; and the laser base is mounted at the upper end of the third sliding block.

Description

Technical Field

[0001] The utility model relates to the technical field of double-slit interference experiments, in particular to a double-slit interference experiment device. Background Art

[0002] The double-slit interference experiment is an experiment that demonstrates the wave and particle properties of microscopic objects such as photons or electrons.

[0003] The experimental device, such as the one with announcement number CN206524087U and named as a double-slit interference experimental device, includes a light source and three straight tubes connected in sequence, wherein a filter is screwed and installed at the front end of the first straight tube, the tube wall of the first straight tube is grooved vertically downward and a single slit is inserted into the tube wall, the tube wall of the second straight tube is grooved vertically downward and a double slit is inserted into the tube wall, and a fluorescent plate is also installed at the tail end of the third straight tube, a notch is opened on the top of the double slit and a camera module is inserted into the top, the camera module is arranged toward the fluorescent plate, and the camera module is connected to a main control computer.

[0004] However, after using the above device, it is not convenient for teachers to carry it because the instrument has a split structure; therefore, we propose a double-slit interference experimental device to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a double-slit interference experiment device to solve the problem that the existing device proposed in the above background technology is inconvenient for teachers to carry after use because the instrument has a split structure.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double-slit interference experimental device, comprising a digital galvanometer;

[0007] Also includes:

[0008] A handle mounted on the upper end of the digital galvanometer;

[0009] A first guide rail, which is installed at the rear end of the digital galvanometer, a second guide rail is installed at the rear end of the first guide rail, and the second guide rail is rotatably connected to the first guide rail through a damping hinge, a first slider, a second slider and a third slider are installed on the first guide rail and the second guide rail, and a front end of the first guide rail is connected to the digital galvanometer through a mounting plate and a screw;

[0010] A one-dimensional light intensity measuring instrument is installed on the upper end of the first slider, and the one-dimensional light intensity measuring instrument is electrically connected to the digital galvanometer;

[0011] A double-slit U-shaped clamp seat, which is installed on the upper end of the second sliding block, and a first bolt is installed on the double-slit U-shaped clamp seat;

[0012] A laser base is mounted on the upper end of the third slider, a semiconductor laser is mounted inside the laser base, a semiconductor laser power supply is mounted at the rear end of the laser base, and the semiconductor laser is electrically connected to the semiconductor laser power supply.

[0013] Preferably, guide grooves are provided on both sides of the outer walls of the first guide rail and the second guide rail, guide blocks are provided on both sides of the inner walls of the first slider, the second slider and the third slider, and the first slider, the second slider and the third slider are slidably connected to the guide grooves on the first guide rail and the second guide rail through the guide blocks, and second bolts are installed on the outer walls of the first slider, the second slider and the third slider.

[0014] Preferably, screw holes are provided on both sides of the bottom surface of the digital galvanometer, positioning plates are installed on both sides of the second guide rail, and third bolts are provided inside the positioning plates.

[0015] Preferably, two sides of the second guide rail are snap-connected to the first guide rail via plastic buckles.

[0016] Preferably, the four corners of the bottom surface of the digital galvanometer are equipped with supporting feet, the bottom surface of one end of the second guide rail is provided with a storage groove, the interior of the storage groove is provided with a support block, and the support block is rotatably connected to the storage groove through a damping shaft.

[0017] Preferably, a silicone sleeve is provided on the outer wall of the handle, and anti-slip patterns are provided on the outer wall of the silicone sleeve.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The utility model integrates the device into an integral whole. After the experiment is completed, the first slider, the second slider and the third slider can be uniformly slid onto the first guide rail, then the plastic buckles at the connection between the first guide rail and the second guide rail on both sides are unlocked, and the support block at the bottom of the second guide rail is flipped over, the second guide rail is rotated along the damping hinge and folded with the first guide rail, and then the third bolts on the positioning pieces on both sides of the second guide rail are used to lock with the screw holes on the bottom surface of the digital galvanometer to complete the fixation, so that the device can be conveniently carried as a whole through the handle on the digital galvanometer later, which solves the problem that the existing device is inconvenient for teachers to carry after use because the instrument has a split structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the folded state structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the bottom structure of the digital galvanometer of the utility model;

[0023] Figure 4 It is a schematic diagram of the partial structure of the bottom surface of the second sliding block of the utility model;

[0024] In the figure: 1. digital galvanometer; 2. handle; 3. silicone sleeve; 4. anti-slip pattern; 5. first guide rail; 6. second guide rail; 7. guide groove; 8. first slider; 9. second slider; 10. third slider; 11. one-dimensional light intensity measuring instrument; 12. double-slit U-shaped clamp; 13. first bolt; 14. laser base; 15. semiconductor laser; 16. semiconductor laser power supply; 17. guide block; 18. second bolt; 19. plastic buckle; 20. positioning plate; 21. third bolt; 22. damping hinge; 23. mounting plate; 24. support foot; 25. screw hole; 26. storage slot; 27. support block; 28. damping shaft. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] See also Figure 1-4 , the utility model provides an embodiment: a double-slit interference experimental device, comprising a digital galvanometer 1;

[0027] Also includes:

[0028] A handle 2, which is mounted on the upper end of the digital galvanometer 1;

[0029] A first guide rail 5 is installed at the rear end of the digital galvanometer 1. A second guide rail 6 is installed at the rear end of the first guide rail 5. The second guide rail 6 is rotatably connected to the first guide rail 5 through a damping hinge 22. A first slider 8, a second slider 9 and a third slider 10 are installed on the first guide rail 5 and the second guide rail 6. The front end of the first guide rail 5 is connected to the digital galvanometer 1 through a mounting plate 23 and screws.

[0030] A one-dimensional light intensity measuring instrument 11 is mounted on the upper end of the first slider 8 and is electrically connected to the digital galvanometer 1;

[0031] A double-slit U-shaped clamp seat 12 is mounted on the upper end of the second slider 9, and a first bolt 13 is mounted on the double-slit U-shaped clamp seat 12;

[0032] The laser base 14 is mounted on the upper end of the third slider 10 . A semiconductor laser 15 is mounted inside the laser base 14 . A semiconductor laser power supply 16 is mounted at the rear end of the laser base 14 . The semiconductor laser 15 is electrically connected to the semiconductor laser power supply 16 .

[0033] See also Figure 1 Guide grooves 7 are provided on both sides of the outer walls of the first guide rail 5 and the second guide rail 6, guide blocks 17 are provided on both sides of the inner walls of the first slider 8, the second slider 9 and the third slider 10, and the first slider 8, the second slider 9 and the third slider 10 are slidably connected with the guide grooves 7 on the first guide rail 5 and the second guide rail 6 through the guide blocks 17, and second bolts 18 are installed on the outer walls of the first slider 8, the second slider 9 and the third slider 10, and the first slider 8, the second slider 9 and the third slider 10 can slide along the first guide rail 5 and the second guide rail 6, so as to adjust the spacing between the components, and after the adjustment is completed, the second bolts 18 can be rotated to lock and fix them.

[0034] See also Figure 1 and Figure 3 Screw holes 25 are provided on both sides of the bottom surface of the digital galvanometer 1, and positioning pieces 20 are installed on both sides of the second guide rail 6. A third bolt 21 is provided inside the positioning piece 20. After the second guide rail 6 is folded along the first guide rail 5, the third bolt 21 on the positioning piece 20 can be used to lock it with the screw holes 25 on the bottom surface of the digital galvanometer 1, so as to fix the second guide rail 6 and the digital galvanometer for easy carrying.

[0035] See also Figure 1 The two sides of the second guide rail 6 are connected to the first guide rail 5 by means of plastic buckles 19. When the first guide rail 5 and the second guide rail 6 are docked, the plastic buckles 19 can be flipped to clamp and fix the two.

[0036] See also Figure 1 , Figure 3 and Figure 4 The four corners of the bottom surface of the digital galvanometer 1 are equipped with supporting feet 24, and the bottom surface of one end of the second guide rail 6 is provided with a receiving groove 26. A supporting block 27 is provided inside the receiving groove 26. The supporting block 27 is rotatably connected to the receiving groove 26 through a damping shaft 28. The supporting feet 24 and the supporting block 27 play the role of supporting the device during the experiment. When storage is required, the supporting block 27 can be rotated into the receiving groove 26 to avoid interference.

[0037] See also Figure 2 A silicone sleeve 3 is arranged on the outer wall of the handle 2, and an anti-slip pattern 4 is arranged on the outer wall of the silicone sleeve 3. The anti-slip pattern 4 increases the friction between the handle 2 and the hand.

[0038] Working principle: Before use, the double slit is clamped in the U-shaped groove of the double slit U-shaped clamp seat 12, and the double slit is locked and fixed with the first bolt 13, and then the first slider 8, the second slider 9 and the third slider 10 are slid, and the sliders are locked with the second bolt 18 after each component is adjusted to a suitable spacing. During the experiment, the semiconductor laser power supply 16 is first turned on to drive the semiconductor laser 15 to emit laser. The laser from the semiconductor laser 15 interferes after passing through the double slit, and the interference fringes are projected onto the one-dimensional light intensity measuring instrument 11. The intensity of the point light source can be detected by the digital galvanometer 1 After the experiment is completed, the first slider 8, the second slider 9 and the third slider 10 can be uniformly slid onto the first guide rail 5, then the plastic buckles 19 at the connection between the first guide rail 5 and the second guide rail 6 are unlocked, and the support block 27 at the bottom of the second guide rail 6 is flipped over, and the second guide rail 6 is rotated along the damping hinge 22 to be folded with the first guide rail 5, and then the third bolts 21 on the positioning pieces 20 on both sides of the second guide rail 6 are used to lock with the screw holes 25 on the bottom surface of the digital galvanometer 1 to complete the fixation, so as to facilitate the subsequent carrying of the device as a whole through the handle 2 on the digital galvanometer 1.

[0039] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A double-slit interference experimental device, comprising a digital galvanometer (1); Features: Also includes: A handle (2) mounted on the upper end of the digital galvanometer (1); A first guide rail (5) is mounted on the rear end of the digital galvanometer (1); a second guide rail (6) is mounted on the rear end of the first guide rail (5); the second guide rail (6) is rotatably connected to the first guide rail (5) via a damping hinge (22); a first slider (8), a second slider (9) and a third slider (10) are mounted on the first guide rail (5) and the second guide rail (6); and a front end of the first guide rail (5) is connected to the digital galvanometer (1) via a mounting plate (23) and screws; A one-dimensional light intensity measuring instrument (11), which is mounted on the upper end of the first sliding block (8), and the one-dimensional light intensity measuring instrument (11) is electrically connected to the digital galvanometer (1); A double-slit U-shaped clamp seat (12) is mounted on the upper end of the second sliding block (9), and a first bolt (13) is mounted on the double-slit U-shaped clamp seat (12); A laser base (14) is mounted on the upper end of the third slider (10), a semiconductor laser (15) is mounted inside the laser base (14), a semiconductor laser power supply (16) is mounted at the rear end of the laser base (14), and the semiconductor laser (15) is electrically connected to the semiconductor laser power supply (16); The two sides of the second guide rail (6) are snap-connected to the first guide rail (5) via plastic buckles (19).

2. A double-slit interference experimental device according to claim 1, characterized in that: Guide grooves (7) are provided on both sides of the outer walls of the first guide rail (5) and the second guide rail (6); guide blocks (17) are provided on both sides of the inner walls of the first slider (8), the second slider (9) and the third slider (10); the first slider (8), the second slider (9) and the third slider (10) are slidably connected to the guide grooves (7) on the first guide rail (5) and the second guide rail (6) through the guide blocks (17); and second bolts (18) are installed on the outer walls of the first slider (8), the second slider (9) and the third slider (10).

3. A double-slit interference experimental device according to claim 1, characterized in that: Screw holes (25) are arranged on both sides of the bottom surface of the digital galvanometer (1), positioning plates (20) are installed on both sides of the second guide rail (6), and a third bolt (21) is arranged inside the positioning plate (20).

4. A double-slit interference experimental device according to claim 1, characterized in that: The four corners of the bottom surface of the digital galvanometer (1) are all equipped with supporting feet (24); the bottom surface of one end of the second guide rail (6) is provided with a receiving groove (26); a supporting block (27) is provided inside the receiving groove (26); and the supporting block (27) is rotatably connected to the receiving groove (26) via a damping shaft (28).

5. A double-slit interference experimental device according to claim 1, characterized in that: A silicone sleeve (3) is provided on the outer wall of the handle (2), and an anti-slip pattern (4) is provided on the outer wall of the silicone sleeve (3).

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