CN208477804U - A kind of portable modular Michelson interference experimental provision - Google Patents
A kind of portable modular Michelson interference experimental provision Download PDFInfo
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- CN208477804U CN208477804U CN201721576945.3U CN201721576945U CN208477804U CN 208477804 U CN208477804 U CN 208477804U CN 201721576945 U CN201721576945 U CN 201721576945U CN 208477804 U CN208477804 U CN 208477804U
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- plane mirror
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- amici prism
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- michelson interference
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Abstract
The utility model belongs to experimental teaching equipment field, and in particular to a kind of portable modular Michelson interference experimental provision.Including a bottom optical flat, the optical flat is equipped with a light source mechanism, the first plane mirror, second plane mirror, Amici prism, receives display unit, the middle of optical flat is arranged in the Amici prism, display unit, light source mechanism, the first plane mirror, second plane mirror is received to be arranged around Amici prism, the advantage of the technical program is that size is small, it is convenient for carrying, image is acquired using colored CCD, large screen projection is carried out convenient for a variety of teaching occasions and demonstrates light path principle, is explained convenient for teacher.The beam-splitting board and compensating plate that traditional Michelson's interferometer is replaced using cube Amici prism, are more clear light path principle clear, understand convenient for student, and can carry out the design of a variety of optical interference experiments by the parameter of change beam splitter prism.
Description
Technical field
The utility model belongs to experimental teaching equipment field, and in particular to a kind of portable modular Michelson interference is real
Experiment device.
Background technique
Well known Michelson's interferometer is to be cooperated by U.S.'s experimental physicist Michelson with Mo Lei, for research " with
It is too " elegant and manufacture and design come out precision optical instrument.It generates dual-beam using the secondary method of point vibration to realize interference.Pass through tune
The whole interferometer, can produce equal thick interference fringe, also can produce equal inclination fringe.Existing interference experiment device exists
Following disadvantage:
1, instrument is heavy, not Portable belt, and the optical path that can not be applied to lyceum classroom instruction is demonstrated, and is not easy to teacher's explanation
Light path principle, and function is relatively simple.
2, hysterisis error is excessive, causes white light interference to adjust difficult, and phenomenon is not easy to give for change, limits experiment measurement application.
3, beam splitter is all made of plate glass, it is necessary to increase compensating plate just and can be convenient and find zero optical path difference position, no
The central principle of optical path is understood conducive to student.
4, instrument component is non-dismountable, is not easy to increase the measurement that extension element carries out multiple types experiment.
5, image viewing mode is all made of eyes direct-view, easily causes eye injury, and field of view is small, is not easy to accurately see
Examine stripe order recognition.
6, He-Ne laser is all made of as principal light source, light source is not integrated into instrument, and occupied space is big, and not
It is enough to stablize.
Utility model content
To solve problems of the prior art, it is dry to provide a kind of portable modular Michelson for the utility model
Relate to experimental provision, concrete scheme is as follows: including a bottom optical flat, the optical flat is equipped with a light source mechanism, the
One plane mirror, second plane mirror, Amici prism and reception display unit, the Amici prism setting are flat in optics
It is solid around Amici prism to receive display unit, light source mechanism, the first plane mirror, second plane mirror for the middle of plate
Fixed setting, and independently of one another.
Further, the light source mechanism is located at behind Amici prism, and the first plane mirror is arranged in light source knot
The right side of light-source structure is arranged in the front of structure, second plane mirror, receives the left side that display unit is located at Amici prism.
Further, first plane mirror passes through a regulating mechanism with second plane mirror respectively and is fixed on
On the optical flat, the angle of its adjustable corresponding plane mirror of the regulating mechanism, and and light source machine
The distance of structure.
Further, the regulating mechanism includes a bottom translation platform, and the rear end of translation stage is equipped with front and back adjusting knob,
Upper surface is equipped with fixed frame, and the left upper portion of fixed frame is equipped with a vertically modulating mechanism, and lower right side is again provided with a level
Regulating mechanism, the vertically modulating mechanism is identical as level(l)ing mechanism structure, respectively includes an adjusting rod and one and adjusts rotation
Button, adjusting knob are fixed on the tail end of adjusting rod, adjust rod head end and pass through fixed frame, and can adjust shifting in front and back in fixed frame
It is dynamic；The regulating mechanism further includes that a plane mirror holder and a pressure spring, plane mirror are fixed on mirror holder, and pressure spring one end and mirror holder connect
It connects, the other end is connect with fixed frame.
Further, the reception display unit, including a receiver and computer display screen, the receiver and aobvious
Show that device connects.
Further, the light source mechanism is using semiconductor laser as light source, small in size, performance stabilization and cost
It is cheap.
Further, the receiver connects a CCD by a camera lens and forms, and camera lens is towards Amici prism direction.
Further, it is additionally provided with a display screen switching mechanism, the switching construction includes a bracket, camera and video
ConvertBox, the branch erect on optical flat, and camera is rack-mount, and camera is towards at Amici prism, camera shooting
Head is connected on video ConvertBox by a coaxial cable, and receiver equally passes through a coaxial cable and is connected to video ConvertBox
On.
Further, which can also be used to measure barred body magnetostriction coefficient to be measured, including an adjusting bracket, adjusting bracket
It is equipped with a barred body, it is magnetostriction materials, barred body is fixedly arranged at the front end with second plane mirror that this barred body, which is metal material,；It adjusts
It saves frame and is equipped with a coil with wheel bracket, wheel bracket is equipped with through-hole, and the barred body passes through through-hole and is fixed on tune
It saves on frame；Adjusting bracket side is equipped with a D.C. regulated power supply, and coil is connected with D.C. regulated power supply by conducting wire.
Further, it connects between coil and D.C. regulated power supply a resistance, to protect the stabilization of entire circuit.
Further, the barred body is threadedly coupled with adjusting bracket, and barred body can front and back adjusting movement on adjusting bracket.
The advantage of the utility model is:
1, size is small, is convenient for carrying, and acquires image using colored CCD, carries out large screen projection convenient for a variety of teaching occasions
Light path principle is demonstrated, is explained convenient for teacher.
2, the present apparatus replaces the beam-splitting board and compensating plate of traditional Michelson's interferometer using cube Amici prism, makes light
Road principle is more clear clear, understands convenient for student, and it is dry can to carry out a variety of optics by changing the parameter of beam splitter prism
Relate to the design of experiment.
3, using cube beam splitter prism as beam splitter, it is convenient to transparent medium is introduced into optical path, will such as be consolidated
Body thin film or liquid medium are adsorbed in a face of beam splitter prism, and the innovation for carrying out the parameter measurements such as medium refraction index, thickness is real
Test design.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the main view of adjustment structure；
Fig. 3 is that adjustment structure is left view；
Fig. 4 is the structural formula schematic diagram of adjusting bracket；
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
In order to preferably facilitate teaching, large screen projection is carried out convenient for a variety of teaching occasions and demonstrates light path principle, convenient for religion
Teacher's explanation.The utility model provides a kind of portable modular Michelson interference experimental provision, and concrete scheme is as follows: including
One bottom optical flat 1, the optical flat 1 are equipped with a light source mechanism 2, the first plane mirror 3, the second plane reflection
The middle of optical flat 1 is arranged in mirror 4, Amici prism 5 and reception display unit, Amici prism 5, receives display unit, light
Source mechanism 2, the first plane mirror 3, second plane mirror 4 are arranged around Amici prism 5, and specific location is light source mechanism 3
Positioned at the rear side of Amici prism 5, the front of light-source structure 2 is arranged in the first plane mirror 3, and second plane mirror 4 is arranged
In the right of light-source structure 2, the left side that display unit is located at Amici prism 5 is received.
As the improvement of scheme, as shown in Fig. 2, preferably adjusting the angle of two plane mirrors, we can be with here
It is respectively provided with a regulating mechanism for each plane mirror, the regulating mechanism includes a bottom translation platform 6, translation stage 6
Rear end be equipped with front and back adjusting knob 7, pass through the back-and-forth motion of the adjustable entire translation stage 6 of adjusting knob 7, that is, adjust translation
Distance of the platform 6 apart from Amici prism 5.The upper surface of translation stage 6 is equipped with fixed frame 8, and the left upper portion of fixed frame 8 is equipped with one and hangs down
Straight adjustment structure 81, lower right side are equipped with a level(l)ing mechanism 82, the vertically modulating mechanism 81 and level(l)ing mechanism
82 structures are identical, respectively include an adjusting rod 85 and an adjusting knob 86, and adjusting knob 86 is fixed on the tail end of adjusting rod 85, adjust
The head end of pole 85 passes through fixed frame 8, can make adjusting rod 85 in the perforation of fixed frame 8 by the rotation of adjusting knob 86
Movement is adjusted before and after spinning in and out.The regulating mechanism further includes a plane mirror holder 83 and a pressure spring 84, the first plane mirror or
The second plane mirror of person is fixed on mirror holder 83, and 84 one end of pressure spring is connect with mirror holder 83, and the other end is connect with fixed frame 8.The present apparatus
In, front and back adjusting knob 7 is arranged on bottom translation platform 6, the back-and-forth motion of adjustable entire platform, and then has adjusted thereon
Distance of the plane mirror apart from Amici prism, left side distance apart from Amici prism 5 of the vertically modulating mechanism 81 for adjusting, water
Flat regulating mechanism 82 is used to adjust distance of the right side of plane mirror apart from Amici prism 5, when the left and right sides distance light splitting of plane mirror
When the distance of prism 5 is identical, plane mirror be then it is horizontally disposed, the different then plane mirrors of the two distance are in certain inclination angle
Degree.Concrete operations are that adjusting knob 86 rotates, and the head end of adjusting rod 85 are contacted with mirror holder 83, by adjusting vertical tune respectively
The length of the adjusting rod of mechanism 81 and level(l)ing mechanism 82 is saved, and then adjusts the angle of plane mirror.
As the improvement of scheme, the reception display unit, including a receiver 9 and computer display screen 10, it is described
Receiver 9 is connect with display screen 10, and the receiver 9 connects a CCD92 by a camera lens 91 (i.e. camera) and forms, camera lens court
To 5 direction of Amici prism.
As the improvement of scheme, it is additionally provided with 10 switching mechanism of a display screen, the switching construction includes a bracket 11, is taken the photograph
As head 12 and video ConvertBox 13, the bracket 11 is stood on optical flat 1, and camera 12 is rack-mount, camera
12 underneath towards Amici prism 5 at；Receiver 9 is connected similarly to video ConvertBox simultaneously, and two cameras are (i.e. in the present apparatus
Camera 12 and camera 91) it can be connected on video ConvertBox 13 by a coaxial cable.On can also be 11 on bracket
Equipped with a light source, for dividing 5 region of prism to illuminate.It in this way can be collected to two cameras in teaching process
Information can be switched at any time on the display screen 10 by switch.
As shown in figure 4, the device can also be used to measure barred body magnetostriction coefficient to be measured, including an adjusting bracket 14, adjust
It saves frame 14 and is equipped with a barred body 15, barred body 15 is fixedly arranged at the front end with second plane mirror 4；Adjusting bracket 14 is equipped with one with wheel
The coil 16 of bracket, wheel bracket are equipped with through-hole, and the barred body 15 passes through through-hole and is fixed on adjusting bracket 14；Adjusting bracket 14
Side is equipped with a D.C. regulated power supply 17, and coil 16 is connected with D.C. regulated power supply 17 by conducting wire.Open D.C. regulated power supply
17, coil 16 is passed through electric current, coil 16 here uses enamel covered wire, and after energization, 16 surrounding of coil generates magnetic field, and barred body exists
It generates small flexible under the action of magnetic field, drives front plan mirror on barred body 15 that micro-displacement occurs, surveyed using white light interference
This small displacement is measured, the magnetostriction coefficient of barred body can be calculated.
As the improvement of scheme, a resistance 18 of connecting between coil 16 and D.C. regulated power supply 17 is entire to protect
The stabilization of circuit.
As the improvement of scheme, the barred body 15 is threadedly coupled with adjusting bracket 14, barred body 15 on adjusting bracket 14 can before
Movement is adjusted afterwards.
In this experimental provision, the connection of each component and bottom optical flat 1 is all made of dismountable connection type, such as
Mode is connected and fixed using screw etc., it is non-dismountable to solve instrument component, is not easy to increase extension element and carries out multiple types
The measurement of experiment.
Experimental teaching is carried out using the present apparatus to adjust measurement sodium optical wavelength, concrete operations are as follows:
1. adjustment test bed, that is, optical flat is horizontal, by cube prism as on platform, and arrive two faces of prism
The distance of two plane mirrors is roughly equal.
2. camera lens is removed, can first be accepted with white screen as (white screen, which show, is easier observation), will appear on screen two it is most bright
Hot spot, the angle for adjusting plane mirror is completely coincident two hot spots, interferes phenomenon, obvious interference fringe occurs
3. removing white screen camera lens receives interference fringe, Switch Video ConvertBox makes display show interference fringe, adjusts
Plane mirror translation stage vernier knob, interference fringe can handle up, and the mobile number N of recorded fringe records vernier knob adjustable range
d。
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (10)
1. a kind of portable modular Michelson interference experimental provision, it is characterised in that: described including a bottom optical flat
Optical flat be equipped with a light source mechanism, the first plane mirror, second plane mirror, Amici prism and to receive display single
The middle on optical flat is arranged in member, the Amici prism, receives display unit, light source mechanism, the first plane reflection
Mirror, second plane mirror are fixedly installed around Amici prism.
2. a kind of portable modular Michelson interference experimental provision as described in claim 1, it is characterised in that: described
Light source mechanism is located at behind Amici prism, and the front of light-source structure, second plane mirror is arranged in the first plane mirror
The right side of light-source structure is set, the left side that display unit is located at Amici prism is received.
3. a kind of portable modular Michelson interference experimental provision as described in claim 1, it is characterised in that: described
First plane mirror and second plane mirror pass through a regulating mechanism respectively and are fixed on the optical flat.
4. a kind of portable modular Michelson interference experimental provision as claimed in claim 3, it is characterised in that: described
Regulating mechanism includes a bottom translation platform, and the rear end of translation stage is equipped with front and back adjusting knob, and upper surface is equipped with fixed frame, fixed
The left upper portion of frame is equipped with a vertically modulating mechanism, and lower right side is equipped with a level(l)ing mechanism；The vertically modulating mechanism
It is identical as level(l)ing mechanism structure, an adjusting rod and an adjusting knob are respectively included, adjusting knob is fixed on the tail of adjusting rod
End adjusts rod head end and passes through fixed frame, can be moved forward and backward in fixed frame；The regulating mechanism further include a plane mirror holder with
One pressure spring, plane mirror are fixed on mirror holder, and pressure spring one end is connect with mirror holder, and the other end is connect with fixed frame.
5. a kind of portable modular Michelson interference experimental provision as described in claim 1, it is characterised in that: described
Display unit is received, including a receiver and computer display screen, the receiver are connect with display.
6. a kind of portable modular Michelson interference experimental provision as claimed in claim 5, it is characterised in that: described
Receiver connects a CCD by a camera lens and forms, and camera lens is towards Amici prism direction.
7. a kind of portable modular Michelson interference experimental provision as described in claim 1, it is characterised in that: be additionally provided with
One display screen switching mechanism, the display screen switching mechanism include a bracket, camera and video ConvertBox, the bracket
It stands on optical flat, camera is rack-mount, and for camera downwardly at Amici prism, camera passes through a coaxial electrical
Cable is connected on video ConvertBox, and receiver equally passes through a coaxial cable and is connected on video ConvertBox.
8. a kind of portable modular Michelson interference experimental provision as claimed in claim 2, it is characterised in that: further include
One adjusting bracket, adjusting bracket are equipped with a barred body, and barred body is fixedly arranged at the front end with second plane mirror；Adjusting bracket is equipped with one and has wheel
The coil of rumble bracket, wheel bracket are equipped with through-hole, and the barred body passes through through-hole and is fixed on adjusting bracket；Adjusting bracket side is set
There is a D.C. regulated power supply, coil is connected with D.C. regulated power supply by conducting wire.
9. a kind of portable modular Michelson interference experimental provision as claimed in claim 8, it is characterised in that: in coil
It connects between D.C. regulated power supply a resistance.
10. a kind of portable modular Michelson interference experimental provision as claimed in claim 8, it is characterised in that: described
Barred body be threadedly coupled with adjusting bracket, barred body on adjusting bracket can front and back adjust movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721576945.3U CN208477804U (en) | 2017-11-23 | 2017-11-23 | A kind of portable modular Michelson interference experimental provision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721576945.3U CN208477804U (en) | 2017-11-23 | 2017-11-23 | A kind of portable modular Michelson interference experimental provision |
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| Publication Number | Publication Date |
|---|---|
| CN208477804U true CN208477804U (en) | 2019-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721576945.3U Active CN208477804U (en) | 2017-11-23 | 2017-11-23 | A kind of portable modular Michelson interference experimental provision |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107798976A (en) * | 2017-11-23 | 2018-03-13 | 沈阳师范大学 | A kind of portable modular Michelson interference experimental provision |
| CN112598982A (en) * | 2020-12-21 | 2021-04-02 | 浙江科技学院 | Wave optical teaching method and teaching device based on light field projection screen |
| CN112697038A (en) * | 2020-11-17 | 2021-04-23 | 衡阳师范学院 | High-precision measuring instrument based on Michelson interference principle |
| RU216568U1 (en) * | 2022-12-13 | 2023-02-14 | Федеральное государственное бюджетное учреждение науки Тихоокеанский океанологический институт им. В.И. Ильичева Дальневосточного отделения Российской академии наук | Mobile laser interferometer |
-
2017
- 2017-11-23 CN CN201721576945.3U patent/CN208477804U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107798976A (en) * | 2017-11-23 | 2018-03-13 | 沈阳师范大学 | A kind of portable modular Michelson interference experimental provision |
| CN112697038A (en) * | 2020-11-17 | 2021-04-23 | 衡阳师范学院 | High-precision measuring instrument based on Michelson interference principle |
| CN112598982A (en) * | 2020-12-21 | 2021-04-02 | 浙江科技学院 | Wave optical teaching method and teaching device based on light field projection screen |
| RU216568U1 (en) * | 2022-12-13 | 2023-02-14 | Федеральное государственное бюджетное учреждение науки Тихоокеанский океанологический институт им. В.И. Ильичева Дальневосточного отделения Российской академии наук | Mobile laser interferometer |
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