Michelson Experimental Instrument

Abstract

This utility model provides a Michelson experimental apparatus, including a working chamber and a sodium lamp source. The working chamber and the sodium lamp source are connected by wires. The working chamber includes an upper plate, a bottom plate, a front panel, a back panel, and side panels. A connecting frame is provided inside the working chamber, and a transmission mechanism is connected to the connecting frame. A handwheel is connected to the right end of the transmission mechanism, extending out of the working chamber and connected to an output shaft. A fixed lens frame, a compensating lens, a beam splitter, a grid screen support, and a movable plate that moves relative to the upper plate are mounted on the upper plate. A micro-adjustment knob is mounted on the fixed lens frame. A movable base is mounted on the movable plate, and a movable lens frame is connected to the top of the movable base. A first adjustment knob is mounted on the right side of the movable base, and a second adjustment knob is mounted on the right side of the movable lens frame. This utility model relates to the field of experimental instruments, replacing the traditional gear and worm gear structure with a self-made reducer, and displaying the displacement digitally on the front panel using an encoder.

Description

Technical Field

[0001] This utility model relates to the field of experimental instruments, and in particular to a Michelson experimental apparatus. Background Technology

[0002] The traditional Michelson apparatus moves the movable mirror by rotating a lead screw through the rotation of gears and worm gears. The stroke is relatively large, and the experimental data can only be read through three positions. When conducting air refractive index experiments, a 200mm long guide rail is required to complete the experiment, making the instrument heavier and inconvenient to use. Utility Model Content

[0003] In view of this, the present invention aims to propose a Michelson test apparatus, which replaces the traditional gear and worm gear transmission structure with a self-made reducer, and displays the displacement in digital form on the front panel of the electrical box by an encoder counting.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A Michelson experimental apparatus includes a working chamber and a sodium lamp source. The working chamber and the sodium lamp source are connected by wires. The working chamber includes a top plate, a bottom plate, a front plate, a back plate, and a side plate. A connecting frame is provided inside the working chamber. The connecting frame is connected to a transmission mechanism. A handwheel is connected to the right end of the transmission mechanism and extends out of the working chamber.

[0006] The upper plate of the housing is equipped with a fixed lens frame, a compensating lens, a beam splitter, a grid screen bracket, and a movable plate that moves relative to the upper plate of the housing. The fixed lens frame is equipped with a micro-adjustment knob.

[0007] A movable base is mounted on the movable plate, and a movable eyeglass frame is connected to the top of the movable base. A first adjustment knob is mounted on the right side of the movable base, and a second adjustment knob is mounted on the right side of the movable eyeglass frame.

[0008] Furthermore, the connecting frame is fixedly installed on the lower end face of the upper plate of the box body. The connecting frame includes a first connecting frame, a second connecting frame, a third connecting frame and a fourth connecting frame, which are arranged sequentially from left to right.

[0009] Furthermore, a connecting plate is connected to the bottom of the movable plate, and a guide is connected to the bottom of the connecting plate;

[0010] The transmission mechanism includes an encoder, flange, lead screw, connecting block, self-made reducer, output shaft, and handwheel;

[0011] The encoder is mounted on the first connecting frame, and the encoder is provided with an encoder shaft. The right end of the encoder shaft is connected to the left end of the lead screw through the flange.

[0012] The right end of the lead screw is connected to the rotating shaft of the self-made reducer through the connecting block. A lead screw nut is fitted on the lead screw, and a traction plate is connected to the back of the lead screw nut. The traction plate is installed on the guide.

[0013] The second connecting frame is equipped with a first bearing, the third connecting frame is equipped with a second bearing, the left end of the lead screw is inserted into the first bearing, and the right end of the lead screw is inserted into the second bearing;

[0014] A self-made speed reducer is installed on the left end of the fourth connecting frame, and the rotating shaft of the self-made speed reducer is connected to the right end of the lead screw through the connecting block.

[0015] The fourth connecting frame is connected to a first bearing chamber by connecting pins, and a third bearing is installed in the first bearing chamber;

[0016] An output shaft is inserted into the third bearing. A reduction gear is connected to the left end of the output shaft. The reduction gear meshes with the internal gear of the self-made reducer. There are two third bearings, and a spacer is provided between them. A baffle is provided on the right side of the first bearing chamber. The right end of the output shaft is connected to the handwheel and fixed by a locking nut.

[0017] Furthermore, the front panel of the enclosure is provided with a power supply, a displacement display screen and a zeroing button from left to right; the back panel of the enclosure is provided with a power connection hole, a lamp switch and a lamp socket from left to right.

[0018] Furthermore, an adjustment handwheel is provided at the bottom of the working box.

[0019] Compared with the prior art, this utility model has the following advantages:

[0020] The Michelson experimental apparatus described in this utility model features a self-made reducer to replace the traditional gear and worm gear rotation mechanism, making the instrument more stable, precise, and durable when moving the movable mirror. This effectively improves the instrument's transmission performance, thereby enhancing the accuracy and reliability of the experiment.

[0021] By incorporating a counting encoder and displaying the displacement on the front panel of the enclosure digitally, researchers can intuitively and conveniently obtain the displacement data of the moving mirror. Unlike traditional methods that require reading from three positions, this simplifies the experimental procedure, improves the efficiency and accuracy of data acquisition, and facilitates the accurate analysis and calculation of experimental results. Attached Figure Description

[0022] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0023] Figure 1 This is a schematic diagram of the overall Michelson experimental apparatus described in an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the sodium lamp source of the Michelson experimental apparatus described in an embodiment of the present invention;

[0025] Figure 3 This is a top view of the Michelson experimental apparatus described in an embodiment of the present invention;

[0026] Figure 4 This is a front view of the front panel of the Michelson experimental apparatus described in this embodiment of the present invention;

[0027] Figure 5 This is a rear view of the housing of the Michelson experimental apparatus described in this embodiment of the present invention;

[0028] Figure 6 The Michelson experimental apparatus described in this embodiment of the utility model Figure 1 Enlarged view of part A;

[0029] Figure 7 This is a simplified schematic diagram of the self-made reducer of the Michelson experimental apparatus described in this embodiment of the present invention;

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Working housing; 2. Adjusting handwheel; 3. Upper plate of housing; 4. Moving plate; 5. Moving base; 6. First adjusting knob; 7. Moving frame; 8. Second adjusting knob; 9. First connecting frame; 10. Second connecting frame; 11. Third connecting frame; 12. Fourth connecting frame; 13. Encoder; 14. Flange; 15. First bearing; 16. Nut; 17. Lead screw; 18. Guide; 19. Driving plate; 20. Connecting plate ; 21. Second bearing; 22. Connecting block; 23. Self-made reducer; 24. Reduction gear; 25. Third bearing; 26. Spacer; 27. Baffle; 28. Handwheel; 29. ​​Locking nut; 30. First bearing chamber; 31. Side plate of the housing; 32. Front panel of the housing; 33. Compensating mirror; 34. Beam splitter; 35. Grid screen bracket; 36. Sodium lamp source; 37. Micro-adjustment knob; 38. Fixed mirror frame; 39. Output shaft. Detailed Implementation

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other.

[0033] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "back," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] This embodiment relates to a Michelson test apparatus, which replaces the traditional gear and worm gear transmission structure with a self-made reducer, and displays the displacement in digital form on the front panel of the electrical box by counting with an encoder.

[0036] Based on the above design concept, an exemplary structure of the Michelson experimental apparatus in this embodiment is as follows: Figures 1-7 As shown, it mainly includes a working box 1 and a sodium lamp source 36. The working box 1 and the sodium lamp source 36 are connected by wires. The working box 1 includes a top plate 3, a bottom plate, a front plate 32, a back plate, and a side plate 31. A connecting frame is provided inside the working box 1. The connecting frame is connected to a transmission mechanism. A handwheel 28 is connected to the right end of the transmission mechanism and extends out of the working box 1. A fixed lens frame 38, a compensating lens 33, a beam splitter 34, a grid screen bracket 35, and a movable plate 4 that moves relative to the top plate 3 are installed on the top plate 3. A micro-adjustment knob 37 is installed on the fixed lens frame 38. A movable seat 5 is installed on the movable plate 4. A movable lens frame 7 is connected to the top of the movable seat 5. A first adjustment knob 6 is installed on the right side of the movable seat 5, and a second adjustment knob 8 is installed on the right side of the movable lens frame 7.

[0037] By setting a connecting frame inside the working box 1, and cooperating with the transmission mechanism and handwheel 28 structure, and by rationally arranging the movable mirror frame 7, movable seat 5, fixed mirror frame 38, and corresponding second adjustment knob 8, first adjustment knob 6, and micro-adjustment knob 37, the experimenters can easily adjust and operate the instrument, easily find the interference ring and adjust its size, thereby better observing the interference phenomenon of light. This provides a stable and flexible operating platform for experiments such as measuring the wavelength of monochromatic light, which is conducive to improving the effectiveness and quality of experimental teaching.

[0038] The connecting frame is fixedly installed on the lower end face of the upper plate 3 of the box. The connecting frame includes a first connecting frame 9, a second connecting frame 10, a third connecting frame 11 and a fourth connecting frame 12, which are arranged from left to right.

[0039] A connecting plate 20 is connected to the bottom of the movable plate 4, and a guide 18 is connected to the bottom of the connecting plate 20. The transmission mechanism includes an encoder 13, a flange 14, a lead screw 17, a connecting block 22, and a self-made reducer 23. The encoder 13 is mounted on the first connecting frame 9, and an encoder shaft is provided on the encoder 13. The right end of the encoder shaft is connected to the left end of the lead screw 17 through the flange 14. The right end of the lead screw 17 is connected to the rotating shaft of the self-made reducer 23 through the connecting block 22. A lead screw nut 16 is fitted on the lead screw 17, and a traction plate 19 is connected to the back of the lead screw nut 16. The traction plate 19 is installed on the guide 18; the first bearing 15 is installed on the second connecting frame 10, the second bearing 21 is installed on the third connecting frame 11, the left end of the lead screw 17 is inserted into the first bearing 15, and the right end of the lead screw 17 is inserted into the second bearing 21; the left end of the fourth connecting frame 12 is equipped with a self-made reducer 23, and the rotating shaft of the self-made reducer 23 is connected to the right end of the lead screw 17 through the connecting block 22; the first bearing chamber 30 is connected to the fourth connecting frame 12 by a connecting nail, and the third bearing 25 is installed in the first bearing chamber 30.

[0040] The third bearing 25 is fitted with an output shaft 39. The left end of the output shaft 39 is fitted with a reduction gear 24. The reduction gear 24 meshes with the internal gear of the self-made reducer 23. There are two third bearings 25, and a spacer 26 is provided between the third bearings 25. A baffle 27 is provided on the right side of the first bearing chamber 30. The right end of the output shaft 39 is connected to the handwheel 28 and fixed by a locking nut 29.

[0041] The front panel 32 of the enclosure is equipped with a power supply, a displacement display screen and a zeroing button from left to right; the back panel of the enclosure is equipped with a power connection hole, a lamp switch and a lamp holder from left to right; the bottom of the working enclosure 1 is equipped with an adjustment handwheel 2.

[0042] By setting a power supply, displacement display screen and zeroing button on the front panel 32 of the enclosure, setting a power connection hole, lamp switch and lamp holder on the back panel of the enclosure, and setting an adjustment handwheel 2 at the bottom of the working enclosure 1, the experimenters can quickly and conveniently perform operations such as power control, data reading and zeroing, lamp management and stable placement and adjustment of the instrument during the experiment, which further improves the ease of use of the instrument and makes the experiment operation smoother and more efficient.

[0043] It is understood that the fixed connection in this embodiment is fixed with connecting nails, but it can also be bolts or rivets.

[0044] When using the Michelson experimental apparatus described in this embodiment:

[0045] 1. Connect the power cord to the instrument and turn on the power switch;

[0046] 2. Place the instrument on a stable experimental platform. Adjust the handwheel 2 at the bottom of the working box 1 to ensure the instrument is stable. Connect the power cord to the instrument and turn on the power switch. The experiment uses a sodium lamp source 36. Position the sodium lamp source 36 correctly, adjust the micro-adjustment knob 37 on the movable frame 7 and fixed frame 38 to locate the interference ring. Adjust the size of the ring by adjusting the first adjustment knob 6 and the second adjustment knob 8 below the movable base 5 to conduct the experiment.

[0047] 3. At this time, turn the handwheel 28. The lead screw 17 rotates, causing the lead screw nut 16 to move. The movement of the lead screw nut 16 causes the traction plate 19 to move the guide 18. The guide 18 is connected to the connecting plate 20 and the moving plate 4, which in turn moves the moving mirror. The rotation of the lead screw 17 drives the encoder 13 to count.

[0048] 4. Determine the position of the starting ring. Press the zeroing button on the front panel, turn the handwheel 28, observe and record the number of convex and concave rings. When you count to 50 rings, observe and record the displacement display value on the working box 1. Take the average value after multiple measurements.

[0049] Using the formula: Calculate the wavelength.

[0050] In addition, the air refractive index can be placed in the nail hole in front of the fixed mirror and connected to the electrical box to conduct the air refractive index experiment.

[0051] Understandably, different light sources can be used for experiments.

[0052] The Michelson experimental apparatus using the above implementation scheme can not only measure the wavelength of monochromatic light and observe the interference phenomenon of light, but also install an air refractive index chamber between the moving mirror and the fixed mirror to enhance the instrument's functional versatility and meet more experimental needs. It replaces the traditional gear and worm gear transmission structure with a self-made reducer, and displays the displacement in digital form on the front panel of the electrical box through encoder counting.

[0053] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A Michelson experimental apparatus, comprising a working chamber (1) and a sodium lamp source (36), wherein the working chamber (1) and the sodium lamp source (36) are connected by wires, and the working chamber (1) comprises a top plate (3), a bottom plate, a front plate (32), a back plate, and a side plate (31), characterized in that: The working box (1) is provided with a connecting frame inside, and the connecting frame is connected to a transmission mechanism. The right end of the transmission mechanism is connected to a handwheel (28), and the handwheel (28) extends out of the working box (1). The upper plate (3) of the housing is equipped with a fixed mirror frame (38), a compensating mirror (33), a beam splitter (34), a grid screen bracket (35), and a movable plate (4) that moves relative to the upper plate (3). The fixed mirror frame (38) is equipped with a micro-adjustment knob (37). A movable seat (5) is installed on the movable plate (4), and a movable frame (7) is connected to the top of the movable seat (5). A first adjustment knob (6) is installed on the right side of the movable seat (5), and a second adjustment knob (8) is installed on the right side of the movable frame (7).

2. The Michelson experimental apparatus according to claim 1, characterized in that: The connecting frame is fixedly installed on the lower end face of the upper plate (3) of the box body. The connecting frame includes a first connecting frame (9), a second connecting frame (10), a third connecting frame (11) and a fourth connecting frame (12). The first connecting frame (9), the second connecting frame (10), the third connecting frame (11) and the fourth connecting frame (12) are arranged from left to right.

3. The Michelson experimental apparatus according to claim 2, characterized in that: The bottom of the movable plate (4) is connected to a connecting plate (20), and the bottom of the connecting plate (20) is connected to a guide (18). The transmission mechanism includes an encoder (13), a flange (14), a lead screw (17), a connecting block (22), and a self-made reducer (23). The encoder (13) is mounted on the first connecting frame (9). The encoder (13) is provided with an encoder shaft. The right end of the encoder shaft is connected to the left end of the lead screw (17) through the flange (14). The right end of the lead screw (17) is connected to the rotating shaft of the self-made reducer (23) through the connecting block (22). A lead screw nut (16) is fitted on the lead screw (17). A traction plate (19) is connected to the back of the lead screw nut (16). The traction plate (19) is installed on the guide (18). The second connecting frame (10) is equipped with a first bearing (15), the third connecting frame (11) is equipped with a second bearing (21), the left end of the lead screw (17) is inserted into the first bearing (15), and the right end of the lead screw (17) is inserted into the second bearing (21). The left end of the fourth connecting frame (12) is equipped with a self-made reducer (23), and the rotating shaft of the self-made reducer (23) is connected to the right end of the lead screw (17) through the connecting block (22). The fourth connecting frame (12) is connected to a first bearing chamber (30) connected by a connecting pin, and a third bearing (25) is installed in the first bearing chamber (30). An output shaft (39) is inserted into the third bearing (25). A reduction gear (24) is connected to the left end of the output shaft (39). The reduction gear (24) meshes with the internal teeth of the self-made reducer (23). There are two third bearings (25). A spacer (26) is provided between the third bearings (25). A baffle (27) is provided on the right side of the first bearing chamber (30). The right end of the output shaft (39) is connected to the handwheel (28) and fixed by a locking nut (29).

4. The Michelson experimental apparatus according to claim 1, characterized in that: The front panel (32) of the enclosure is provided with a power supply, a displacement display screen and a zeroing button from left to right; The back panel of the enclosure is provided with a power connection hole, a lamp switch and a lamp holder from left to right.

5. The Michelson experimental apparatus according to claim 1, characterized in that: The bottom of the working box (1) is equipped with an adjustment handwheel (2).

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