CN112991892B - Flexible double-slit device for double-slit experiment - Google Patents
Flexible double-slit device for double-slit experiment Download PDFInfo
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- CN112991892B CN112991892B CN202110265319.7A CN202110265319A CN112991892B CN 112991892 B CN112991892 B CN 112991892B CN 202110265319 A CN202110265319 A CN 202110265319A CN 112991892 B CN112991892 B CN 112991892B
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Abstract
The utility model belongs to the technical field of double-slit experimental equipment, and particularly relates to a flexible double-slit device for double-slit experiments. According to the utility model, the fixed orifice plate unit, the movable orifice plate unit and the two movable baffle units are arranged on the orifice plate unit, so that the aim of independently and flexibly adjusting the seam distance and the seam width of the double-seam structure is fulfilled. The utility model has the following advantages: the dislocation adjusting function between the fixed perforated plate unit and the movable perforated plate unit can ensure that the seam distance is flexibly adjustable within a certain range; the two movable baffle units can be independently and slidably adjusted, so that the width of the two side seams can be independently and flexibly adjusted, and various optical teaching requirements can be met; the whole double-slit device has the advantages of high structural stability, simple and convenient adjustment operation, higher precision and very compact overall structure.
Description
Technical Field
The utility model belongs to the technical field of double-slit experimental equipment, and particularly relates to a flexible double-slit device for double-slit experiments.
Background
In the optical double-slit experiment teaching process, at least the following adjustment needs to be carried out on the double-slit device, so that the teaching requirements of various different optical systems can be met, and students can better and deeply understand the double-slit principle: firstly, under the condition of unchanged seam width, the seam distance is regulated, and the seam distance regulating range is generally 0.5-1.0mm; second, both symmetric and asymmetric stitch width parameters are adjusted with the stitch length unchanged.
On the existing teaching device, the method for meeting the two requirements is to continuously replace various types of double-slit plates, and the specification parameters of the double-slit plates are prefabricated and fixed and are not adjustable, so that the whole double-slit teaching device comprises more than ten double-slit plates and even more than ten double-slit plates, and great trouble is brought to double-slit experiments.
In view of the foregoing, there is a need for a dual seam device that can flexibly adjust both the seam width and the seam spacing, and in which both parameters can be independently adjusted.
The Chinese patent with publication number of CN209641194U and publication date of 2019.11.15 discloses an integrated double-slit interferometer, which comprises a box body, wherein a light emitting device is fixed on the rear side wall of the box body, a measuring device is fixed on the front side wall of the box body, and a shading barrel is fixed in the middle of the box body through a bracket; the light emitting device consists of a battery box, an LED light source and a switch button, wherein the battery box and the LED light source are arranged in the box body, and the switch button is arranged outside the box body and is connected with the box body through punching on the rear side wall of the box body; the measuring device consists of a vernier caliper and a measuring head, and is fixed with a shading cylinder in the box body through punching holes on the front side wall of the box body; the single-slit double-slit lens is fixedly arranged on the shading cylinder, so that secondary debugging is avoided; the front end of the single-slit double-slit lens is provided with an optical filter.
However, the specifications of the single slit and double slit lens of the double slit interferometer disclosed by the utility model are fixed and not adjustable, so that the problem that a double slit experiment is not comprehensive enough exists and the experimental understanding cannot be deepened.
Disclosure of Invention
The utility model provides a flexible double-slit device for double-slit experiments, which can achieve the purpose that the slit distance and the slit width of a double-slit structure can be independently and flexibly adjusted by arranging a fixed orifice plate unit, a movable orifice plate unit and two movable baffle plate units on an orifice plate unit.
The utility model adopts the technical proposal that: a flexible type double slit device for double slit experiment, is including the trompil bottom plate unit of vertical setting, set up on the vertical side of trompil bottom plate unit and be used for forming the fixed trompil board unit of initial seam distance, set up on the vertical side of trompil bottom plate unit and through horizontal slip and then adjust the movable trompil board unit that overlaps the regional size in order to be used for adjusting double slit seam distance on the vertical side of fixed trompil board unit, and set up on the vertical side of trompil bottom plate unit and be located respectively the both sides of fixed trompil board unit and through horizontal slip's mode is in order to be used for two adjustable flap units of two seam width parameters on the vertical side of movable trompil board unit.
The further preferable technical scheme is as follows: the perforated bottom plate unit comprises a vertical plate body, a bottom plate perforated hole arranged on the vertical plate body, a first vertical plate arranged on the side surface of the vertical plate body and positioned below the perforated bottom plate and used for supporting the fixed perforated plate unit, the movable perforated plate unit and two movable baffle units, a protruding supporting plate arranged on the upper surface of the protruding supporting plate and used for carrying out clamping limiting on the outer side surface of the two movable baffle units, and a second vertical plate arranged on the upper surface of the protruding supporting plate and positioned on the inner side of the vertical limiting plate and used for clamping and fixing the fixed perforated plate unit and clamping limiting the movable perforated plate unit, and arranged on the upper surface of the protruding supporting plate and positioned on the inner side of the vertical limiting plate and used for clamping and fixing the other side of the fixed perforated plate unit and allowing the movable perforated plate unit to slide through.
The further preferable technical scheme is as follows: the thickness of the protrusions of the second vertical plates on the vertical side faces of the vertical plate body is smaller than that of the first vertical plates.
The further preferable technical scheme is as follows: the fixed orifice plate unit is in including setting up fixed rectangular plate in the U type frame that first vertical board, protrusion backup pad and the three of second vertical board are constituteed fixed plate trompil on the fixed rectangular plate, and set up in the fixed plate trompil and be used for forming the vertical strip of fixed plate of initial seam distance.
The further preferable technical scheme is as follows: the movable aperture plate unit comprises a sliding rectangular plate which is arranged on the protruding support plate and located between the first vertical plate and the movable baffle unit, a plate pushing part which is arranged on the side face of the vertical plate and located above the movable baffle unit and is close to one side of the second vertical plate, a sliding plate opening hole which is formed in the sliding rectangular plate, and a sliding plate vertical strip which is arranged on the sliding plate opening hole and forms an overlapping area together with the fixed plate vertical strip.
The further preferable technical scheme is as follows: the plate body pushing part comprises a fixed plate arranged on the side surface of the vertical plate body, a pulling spring arranged between the fixed plate and the opposite side surface of the sliding rectangular plate, and a seam distance adjusting bolt which penetrates through the fixed plate and is used for adjusting the effective seam distance in a manner of transversely pushing the sliding rectangular plate.
The further preferable technical scheme is as follows: the movable baffle unit comprises a knife-shaped plate which is arranged on the inner side surface of the knife-shaped plate and is used for sliding the outer side of the double-slit structure, a supporting plate which is arranged on the protruding supporting plate and is attached to the outer side surface of the protruding supporting plate, a vertical limiting plate and an inner side surface of the vertical limiting plate, a slit width adjusting part which is arranged on the side surface of the vertical plate and is used for pushing and adjusting the knife-shaped plate, and a fixing hole opening plate unit and a movable hole opening plate unit are arranged on the supporting plate.
The further preferable technical scheme is as follows: the transverse section of the knife-shaped plate is right trapezoid, and the edge of the knife-shaped plate corresponding to the acute angle of the right trapezoid is an outer side hemming of the double-slit structure.
The further preferable technical scheme is as follows: the seam width adjusting part comprises a side fixing plate arranged on the side surface of the vertical plate body, a reset spring arranged between the side fixing plate and the opposite side surface of the knife-shaped plate, and an adjusting bolt which is in threaded connection with the side fixing plate and is used for adjusting the seam width parameters of the double-seam structure in a mode of jacking the knife-shaped plate towards the middle.
The further preferable technical scheme is as follows: the number of the reset springs is two, and the adjusting bolts are arranged between the upper reset spring and the lower reset spring.
The utility model has the following advantages: firstly, an aperture bottom plate unit, a fixed aperture plate unit, a movable aperture plate unit and a movable baffle plate unit are provided with overlapped aperture areas on a light path, so that light rays can pass smoothly; secondly, the dislocation adjusting function between the fixed perforated plate unit and the movable perforated plate unit can ensure that the seam distance is flexibly adjustable within a certain range; thirdly, the two movable baffle units can be independently and slidably adjusted, so that the slit widths at the two sides can be independently and flexibly adjusted, and various optical teaching requirements can be met; fourth, the structural stability of the whole double-slit device is high, the adjustment operation is simple and convenient, the precision is high, and the whole structure is very compact.
Drawings
Fig. 1 is a schematic structural view of an open-pore floor unit in the present utility model.
Fig. 2 is a schematic diagram of the structure of the present utility model in front view.
Fig. 3 is a schematic structural view of the present utility model in a top view.
Fig. 4 is a schematic structural view of a fixed orifice plate unit in the present utility model.
Fig. 5 is a schematic structural view of a movable aperture plate unit in the present utility model.
Fig. 6 is a schematic view of the position structure of the flapper unit in the top view of the present utility model.
Detailed Description
The following description is of the preferred embodiments of the utility model and is not intended to limit the scope of the utility model.
Examples: as shown in fig. 1, 2, 3, 4, 5 and fig. 6, a flexible double slit device for double slit experiments includes a vertically disposed perforated bottom plate unit 1, a fixed perforated plate unit 2 disposed on a vertical side of the perforated bottom plate unit 1 and used for forming an initial slit distance, a movable perforated plate unit 3 disposed on the vertical side of the perforated bottom plate unit 1 and used for adjusting a double slit distance by sliding laterally on the vertical side of the fixed perforated plate unit 2 and adjusting an overlapping area size, and two movable baffle units 4 disposed on the vertical side of the perforated bottom plate unit 1 and respectively located on both sides of the fixed perforated plate unit 2 and sliding laterally on the vertical side of the movable perforated plate unit 3 for independently adjusting two slit width parameters.
In this embodiment, the slot pitch adjustment mode of the double-slot structure is that the fixed aperture plate unit 2 and the movable aperture plate unit 3 with the same basic size, the former fixes the latter to slide, so that the area for forming the slot pitch which is originally overlapped can be pulled away, the smaller the slot pitch is larger when the area is pulled away, otherwise, the two overlapped areas can not be pulled away to be completely separated, otherwise, the three-slot structure is not allowed.
Secondly, two movable baffle units 4 can be independently and freely pulled to two sides, the seam width of the double-seam structure can be flexibly adjusted, and finally the whole double-seam device is ensured to have the effect of flexibly adjusting the seam distance and the seam width.
The perforated bottom plate unit 1 comprises a vertical plate body 101, a bottom plate perforated hole 102 arranged on the vertical plate body 101, a first vertical plate 105 arranged on the side surface of the vertical plate body 101 and positioned below the bottom plate perforated hole 102 and used for supporting the fixed perforated plate unit 2, the movable perforated plate unit 3 and two protruding support plates 103 of the movable baffle unit 4, a vertical limiting plate 104 arranged on the upper surface of the protruding support plates 103 and used for clamping and limiting on the outer side surface of the movable baffle unit 4, a second vertical plate 106 arranged on the upper surface of the protruding support plates 103 and positioned on the inner side of the vertical limiting plate 104 and used for clamping and fixing the fixed perforated plate unit 2 and the movable perforated plate unit 3, and a second vertical plate 106 arranged on the upper surface of the protruding support plates 103 and positioned on the inner side of the vertical limiting plate 104 and used for clamping and fixing the other side of the fixed perforated plate unit 2 and allowing the movable perforated plate unit 3 to slide through.
In this embodiment, the vertical plate 101, the protruding support plate 103 and the vertical limiting plate 104 form a similar U-shaped structure in the advancing direction of parallel light, so as to ensure that the two outermost movable baffle units 4 are not easy to flip down, while the first vertical plate 105, the protruding support plate 103 and the second vertical plate 106 form a U-shaped structure in the advancing direction of perpendicular light, so as to ensure that the fixed aperture plate unit 2 does not accidentally move, and finally the movable aperture plate unit 3 stably slides to be used for adjusting the slit distance, and the movable baffle units 4 stably slide to be used for adjusting the slit width, so as to finally ensure the effective use of the double slit device.
The thickness of the protrusions of the second vertical plates 106 on the vertical side surfaces of the vertical plate body 101 is smaller than that of the first vertical plates 105.
In this embodiment, the fixed orifice plate unit 2 and the movable orifice plate unit 3 are of a basic orifice plate structure, and the dimensions of the fixed orifice plate unit 2 and the movable orifice plate unit 3 are completely identical in view of more uniform and simple manufacturing, so that the first vertical plate 105 may be relatively thicker to clamp the fixed orifice plate unit 2 and limit the movable orifice plate unit 3 on one side, but at this time, if the second vertical plate 106 is of the same thickness, the movable orifice plate unit 3 cannot slide, so that the thickness of the second vertical plate 106 is relatively smaller, and only the fixed orifice plate unit 2 can be blocked, so that the movable orifice plate unit 3 can slide smoothly.
The fixed perforated plate unit 2 comprises a fixed rectangular plate 201 arranged in a U-shaped frame formed by the first vertical plate 105, the protruding support plate 103 and the second vertical plate 106, a fixed plate perforated hole 202 arranged on the fixed rectangular plate 201, and a fixed plate vertical strip 203 arranged in the fixed plate perforated hole 202 and used for forming an initial gap distance.
The movable aperture plate unit 3 includes a sliding rectangular plate 301 disposed on the protruding support plate 103 and located between the first vertical plate 105 and the movable baffle unit 4, a plate body pushing portion 302 disposed on a side surface of the vertical plate body 101 and located above the movable baffle unit 4 and located at a position near one side of the second vertical plate 106, a sliding plate aperture 303 disposed on the sliding rectangular plate 301, and a sliding plate vertical bar 304 disposed on the sliding plate aperture 303 and forming the overlapping region together with the fixed plate vertical bar 203.
In this embodiment, the dimensions of the fixed rectangular plate 201, the fixed plate opening 202, the fixed plate vertical bar 203, and the sliding rectangular plate 301, the sliding plate opening 303, and the sliding plate vertical bar 304 are completely identical, and are replaceable, and the movable opening plate unit 3 is only configured by: first, add the said plate body pushing part 302; second, the second vertical plate 106 does not block the sliding rectangular plate 301, so as to ensure that the movable aperture plate unit 3 can slide smoothly.
The plate body pushing part 302 includes a fixed plate 302a provided on a side of the vertical plate body 101, a pulling spring 302b provided between the fixed plate 302a and an opposite side of the sliding rectangular plate 301, and a slit distance adjusting bolt 302c for adjusting an effective slit distance by pushing the sliding rectangular plate 301 laterally after passing through the fixed plate 302 a.
In this embodiment, the gap adjusting bolt 302c is finally used to push and adjust the position of the sliding plate vertical bar 304, and the pulling spring 302b is used to "press" the sliding rectangular plate 301 against the gap adjusting bolt 302c, so as to ensure that the sliding rectangular plate 301 is fixed after being adjusted.
The movable baffle unit 4 comprises a knife-shaped plate 401 which is arranged on the convex supporting plate 103, is attached to the outer side face of the convex supporting plate 103, is attached to the vertical limiting plate 104, is attached to the inner side face of the sliding rectangular plate 301 and is used for forming an outer side seam edge of a double-seam structure, a supporting plate 402 which is arranged on the inner side face of the knife-shaped plate 401, is used for sliding on the side face of the vertical plate body 101 and is used for reserving an internal installation space for the fixed perforated plate unit 2 and the movable perforated plate unit 3, and a seam width adjusting part 403 which is arranged on the side face of the vertical plate body 101 and is used for pushing and adjusting the knife-shaped plate 401. The transverse section of the knife-shaped plate 401 is in a right trapezoid shape, and the edge of the knife-shaped plate 401 corresponding to the acute angle of the right trapezoid shape is an outer side seam edge of the double-seam structure.
In this embodiment, the trapezoid cutter-shaped plate 401 can ensure that the edge forming the edge is a sharp edge, which is relatively sharp, to ensure that the edge of the double seam is clearer, while the support plate 402 can allow the inner side of the cutter-shaped plate 401 to accommodate the fixed aperture plate unit 2 and the movable aperture plate unit 3, to ensure that the whole double seam structure can be formed smoothly,
in addition, the above-mentioned laminating means that the distance between the inner side surface of the vertical limiting plate 104 and the outer side surface of the sliding rectangular plate 301 is 0.1-0.2mm greater than the thickness of the knife-shaped plate 401, so as to ensure that the sliding rectangular plate 301 and the knife-shaped plate 401 can slide relatively with less effort and stably.
The slit width adjusting part 403 includes a side fixing plate 403a provided on a side of the vertical plate body 101, a return spring 403b provided between the side fixing plate 403a and an opposite side of the knife-shaped plate 401, and an adjusting bolt 403c which is screw-coupled to the side fixing plate 403a and is used for adjusting a slit width parameter of the double slit structure by lifting the knife-shaped plate 401 toward the middle. The number of the return springs 403b is two, and the adjustment bolt 403c is disposed between the upper and lower return springs 403 b.
In this embodiment, the structure of the slit width adjusting part 403 is identical to that of the plate body pushing part 302, and the two parts only have differences in terms of installation position, size specification and purpose of use, and the purpose of the slit width adjusting part 403 is to ensure that the knife-shaped plate 401 can stably slide and can be fixed after sliding to a desired position, and no accidental loosening is caused.
The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited to the above embodiments, and various modifications may be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model. These are all non-inventive modifications which are intended to be protected by the patent laws within the scope of the appended claims.
Claims (6)
1. A nimble two slit device for two slit experiments, its characterized in that: comprises a vertically arranged perforated bottom plate unit (1), a fixed perforated plate unit (2) which is arranged on the vertical side surface of the perforated bottom plate unit (1) and used for forming an initial seam distance, a movable perforated plate unit (3) which is arranged on the vertical side surface of the perforated bottom plate unit (1) and used for adjusting double seam distance in a mode of transversely sliding on the vertical side surface of the fixed perforated plate unit (2) and further adjusting the size of an overlapping area, and two movable baffle units (4) which are arranged on the vertical side surface of the perforated bottom plate unit (1) and are respectively positioned on two sides of the fixed perforated plate unit (2) and used for independently adjusting two seam width parameters in a mode of transversely sliding on the vertical side surface of the movable perforated plate unit (3),
the perforated bottom plate unit (1) comprises a vertical plate body (101), a bottom plate perforated hole (102) arranged on the vertical plate body (101), a first vertical plate (105) arranged on the side surface of the vertical plate body (101) and positioned below the perforated bottom plate perforated hole (102) and used for supporting the fixed perforated plate unit (2), the movable perforated plate unit (3) and two protruding support plates (103) of the movable baffle unit (4), a vertical limit plate (104) arranged on the upper surface of the protruding support plate (103) and used for clamping and limiting the outer side surfaces of the two movable baffle units (4), a second vertical plate (106) arranged on the upper surface of the protruding support plate (103) and positioned on the inner side of the vertical limit plate (104) and used for clamping and fixing the fixed perforated plate unit (2), and a second vertical plate (105) arranged on the upper surface of the protruding support plate (103) and used for allowing the movable perforated plate unit (3) to pass through the sliding through,
the fixed orifice plate unit (2) comprises a fixed rectangular plate (201) arranged in a U-shaped frame formed by the first vertical plate (105), the convex supporting plate (103) and the second vertical plate (106), a fixed plate opening (202) arranged on the fixed rectangular plate (201) and a fixed plate vertical strip (203) arranged in the fixed plate opening (202) and used for forming an initial gap distance,
the movable aperture plate unit (3) comprises a sliding rectangular plate (301) arranged on the convex supporting plate (103) and positioned between the first vertical plate (105) and the movable baffle unit (4), a plate body pushing part (302) arranged on the side surface of the vertical plate body (101) and positioned above the movable baffle unit (4) and close to one side position of the second vertical plate (106), a sliding plate opening (303) arranged on the sliding rectangular plate (301), and a sliding plate vertical bar (304) arranged on the sliding plate opening (303) and forming the overlapped area together with the fixed plate vertical bar (203),
the movable baffle unit (4) comprises a knife-shaped plate (401) which is arranged on the convex supporting plate (103) and is attached to the outer side face of the vertical limiting plate (104), is attached to the inner side face of the sliding rectangular plate (301) and is used for forming an outer side hemming of a double-slit structure, a supporting plate (402) which is arranged on the inner side face of the knife-shaped plate (401) and is used for sliding on the side face of the vertical plate body (101) and is used for giving out an internal installation space for the fixed hole opening plate unit (2) and the movable hole opening plate unit (3), and a hemming width adjusting part (403) which is arranged on the side face of the vertical plate body (101) and is used for pushing and adjusting the knife-shaped plate (401).
2. A flexible two-slit device for two-slit experiments as claimed in claim 1, wherein: the thickness of the protrusions of the second vertical plates (106) on the vertical side surfaces of the vertical plate body (101) is smaller than that of the first vertical plates (105).
3. A flexible two-slit device for two-slit experiments as claimed in claim 1, wherein: the plate body pushing part (302) comprises a fixed plate (302 a) arranged on the side surface of the vertical plate body (101), a pulling spring (302 b) arranged between the fixed plate (302 a) and the opposite side surface of the sliding rectangular plate (301), and a seam distance adjusting bolt (302 c) which passes through the fixed plate (302 a) and is used for adjusting the effective seam distance by transversely pushing the sliding rectangular plate (301).
4. A flexible two-slit device for two-slit experiments as claimed in claim 1, wherein: the transverse cross section of the knife-shaped plate (401) is in a right trapezoid shape, and the edge of the knife-shaped plate (401) corresponding to the acute angle of the right trapezoid shape is an outer side seam edge of the double-seam structure.
5. A flexible two-slit device for two-slit experiments as claimed in claim 1, wherein: the seam width adjusting part (403) comprises a side fixing plate (403 a) arranged on the side surface of the vertical plate body (101), a reset spring (403 b) arranged between the side fixing plate (403 a) and the opposite side surface of the knife-shaped plate (401), and an adjusting bolt (403 c) which is in threaded connection with the side fixing plate (403 a) and is used for adjusting the seam width parameters of the double-seam structure in a mode of jacking the knife-shaped plate (401) towards the middle.
6. A flexible two-slit device for two-slit experiments as claimed in claim 5, wherein: the number of the return springs (403 b) is two, and the adjusting bolt (403 c) is arranged between the upper and lower return springs (403 b).
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| CN202110265319.7A CN112991892B (en) | 2021-03-11 | 2021-03-11 | Flexible double-slit device for double-slit experiment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110265319.7A CN112991892B (en) | 2021-03-11 | 2021-03-11 | Flexible double-slit device for double-slit experiment |
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| CN112991892A (en) | 2021-06-18 |
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