CN109373891A - The transformation of michelson interferometer measurement system - Google Patents
The transformation of michelson interferometer measurement system Download PDFInfo
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- CN109373891A CN109373891A CN201811201596.6A CN201811201596A CN109373891A CN 109373891 A CN109373891 A CN 109373891A CN 201811201596 A CN201811201596 A CN 201811201596A CN 109373891 A CN109373891 A CN 109373891A
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- plane mirror
- mobile platform
- digital display
- transformation
- display rule
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B9/00—Measuring instruments characterised by the use of optical techniques
- G01B9/02—Interferometers
- G01B9/02049—Interferometers characterised by particular mechanical design details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
- G01N21/45—Refractivity; Phase-affecting properties, e.g. optical path length using interferometric methods; using Schlieren methods
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/22—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for optics
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- Optics & Photonics (AREA)
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- Instruments For Measurement Of Length By Optical Means (AREA)
Abstract
The transformation of michelson interferometer measurement system belongs to instruments used for education, scientific research apparatus technical field, including cast iron base, adjust screw, mechanical table top, gear train, handwheel, fine motion drum, read window, precision lead screw, plane mirror, plane mirror, compensating glass B, beam splitter A, mobile platform, adjusting screw, digital display rule and groove, pass through the installation by mobile platform and digital display rule on mechanical table top, after not locking Michelson's interferometer handwheel coarse adjustment, adjusting screw on the stubborn mobile platform of pine, manually adjust the position of mobile platform on the slide rail, so that the probe and M of digital display rule2The contact of plane mirror platform end face, adjusts M again2The position of plane mirror platform completes to read by digital display rule, during the experiment, by adjusting the position of mobile platform, experiment difficulty greatly reduces, it is ensured that most of inexperienced people can complete instrumentation, and successfully complete reading.
Description
Technical field
The invention belongs to instruments used for education, scientific research apparatus technical field, and in particular to michelson interferometer measurement system
Transformation.
Background technique
Michelson steller interferometer is that American physicist Michelson in 1881 is cooperated with Mo Lei, for research " ether " drift
Manufacture and design the precise light instrument come out.It is to utilize that amplitude hair is divided to generate dual-beam to realize interference, by adjusting the interference
Instrument, can produce equal thick interference fringe, the inclination interference fringe such as also can produce, is mainly used for the measurement of length and refractive index,
It is M if observing moving interference fringes one2Swing arm amount of movement be λ/2, be equivalent to M1With M2Between air film thickness
Change λ/2.In Contemporary Physics and modern age measurement technology, standard meter such as is demarcated in the research of spectrum line fine structure and with light wave
Important function is suffered from the experiment such as ruler.
Usually Michelson's interferometer is divided into locking and two kinds not locking, and general locking Michelson's interferometer can be protected
Demonstrate,prove handwheel and fine motion drum corresponding relationship, but it is complicated for operation be not easy to grasp, student during the experiment often all because operation
It is improper to lead to the failure of an experiment；Not locking Michelson's interferometer, handwheel and fine motion drum are driven and are frictionally driven, every coarse adjustment one
Secondary handwheel, and fine motion drum be it is motionless, the two does not just have corresponding relationship and generates dislocation, leads to not read.
Summary of the invention
To achieve the goals above, the present invention adopts the following technical scheme:
The transformation of michelson interferometer measurement system, including cast iron base, there are three the cast iron base bottom settings
Screw is adjusted, is provided with mechanical table top at the top of the cast iron base, mechanical table top one end is provided with gear train, outside gear train
Shell side wall is provided with handwheel and fine motion drum, and the handwheel axis is vertically arranged with fine motion drum axis, outside the gear train
It is provided with reading window at the top of shell, is provided with precision lead screw on the machinery table top, and precision lead screw is connected with gear train, it is described
Mechanical mesa top is slidably fitted with M by precision lead screw and sliding rail2Plane mirror, the machinery mesa top is close to gear train
One end is provided with M1Plane mirror, compensating glass B and beam splitter A, and mono- surface beam splitter A is coated with half transmitting metal film, the cunning
Mobile platform is provided on rail, and mobile platform is located at M2Plane mirror outer end, mobile platform are fixed by adjusting screw with sliding rail
Installation, the mobile platform top are provided with digital display rule.
The upper surface of the digital display rule and M2Plane mirror platform upper surface is concordant.
Setting is fluted in the middle part of the mobile platform, and precision lead screw through-going recess.
The compensating glass B and beam splitter A are arranged in parallel, the M2Plane mirror and the M1Plane mirror is vertically arranged, and M2It is flat
In 45 degree of angle settings, the M between face mirror and compensating glass B1In 45 degree of angle settings between plane mirror and beam splitter A.
Beneficial effects of the present invention, by the installation by mobile platform and digital display rule on mechanical table top, not locking
After Michelson's interferometer handwheel coarse adjustment, adjusting screw on the stubborn mobile platform of pine manually adjusts mobile platform on the slide rail
Position, so that the probe and M of digital display rule2The contact of plane mirror platform end face, adjusts M again2The position of plane mirror platform, passes through number
Aobvious ruler completes reading, during the experiment, by adjusting the position of mobile platform, experiment difficulty greatly reduces, it is ensured that big
The inexperienced people in part can complete instrumentation, and successfully complete reading.
Detailed description of the invention
Fig. 1 is structural schematic diagram after Michelson's interferometer of the present invention transformation；
1- cast iron base, 2- adjust screw, 3- machinery table top, 4- gear train, 5- handwheel, 6- fine motion drum, 7- reading
Window, 8- precision lead screw, 9- sliding rail, 10-M2Plane mirror, 11-M1Plane mirror, 12- compensating glass B, 13- beam splitter A, 14- are mobile flat
Platform, 15- adjusting screw, 16- digital display rule, 17- groove.
Specific embodiment
To achieve the goals above, the present invention adopts the following technical scheme:
As shown in Figure 1, the transformation of michelson interferometer measurement system, including cast iron base 1,1 bottom of cast iron base
Portion's setting is provided with mechanical table top 3 there are three screw 2 is adjusted at the top of the cast iron base 1, mechanical 3 one end of table top setting is with teeth
Wheel system 4,4 side wall of outer shell of gear train are provided with handwheel 5 and fine motion drum 6,5 axis of handwheel and 6 axis of fine motion drum
It being vertically arranged, 4 cover top portion of gear train is provided with reading window 7, it is provided with precision lead screw 8 on the machinery table top 3, and
Precision lead screw 8 is connected with gear train 4, is slidably fitted with M by precision lead screw 8 and sliding rail 9 at the top of the machinery table top 32It is flat
Face mirror 10,3 top of machinery table top are provided with M close to 4 one end of gear train1Plane mirror 11, compensating glass B12 and beam splitter
A13, and mono- surface beam splitter A13 is coated with half transmitting metal film, mobile platform 14 is provided on the sliding rail 9, and mobile flat
Platform 14 is located at M210 outer end of plane mirror, mobile platform 14 are fixedly mounted by adjusting screw 15 and sliding rail 9, the mobile platform 14
Top is provided with digital display rule 16.
The upper surface of the digital display rule 16 and M210 platform upper surface of plane mirror is concordant, guarantees the digital display rule 16 in measurement
Probe and M2The contact of 10 platform end face of plane mirror sufficiently, reduces measurement error.
Fluted 17, and 8 through-going recess 17 of precision lead screw are set in the middle part of the mobile platform 14, and precision lead screw 8 passes through recessed
Slot 17 guarantees M2During 10 platform of plane mirror is mobile under the drive of precision lead screw 8, mobile platform 14 does not follow M2Plane mirror
10 platforms move together.
The compensating glass B12 and beam splitter A13 are arranged in parallel, the M2Plane mirror 9 and the M1Plane mirror 10 is vertically set
It sets, and M2In 45 degree of angle settings, the M between plane mirror 9 and compensating glass B121It is in 45 degree between plane mirror 10 and beam splitter A13
Angle setting.
Operating process of the invention is to rotate gear train 4 by rotating handwheel 5 first, and then drive accurate
Lead screw 8 rotates, M210 platform of plane mirror generates displacement under the action of precision lead screw 8, and then completes coarse adjustment；Secondly by release
15 manual moving platform 14 of adjusting screw makes the probe and M of digital display rule 162The contact of 10 platform end face of plane mirror, then tightens adjusting
Screw 15 is fixed on mobile platform 14 on sliding rail 9；Finally by adjusting M210 platform of plane mirror, measurement data pass through digital display
Ruler 16 is directly read.
Claims (4)
1. the transformation of michelson interferometer measurement system, which is characterized in that including cast iron base, the cast iron base bottom is set
It sets there are three screw is adjusted, is provided with mechanical table top at the top of the cast iron base, mechanical table top one end is provided with gear train, tooth
Wheel system side wall of outer shell is provided with handwheel and fine motion drum, and the handwheel axis is vertically arranged with fine motion drum axis, the tooth
Wheel system cover top portion is provided with reading window, is provided with precision lead screw, and precision lead screw and gear train on the machinery table top
It is connected, the machinery mesa top is slidably fitted with M by precision lead screw and sliding rail2Plane mirror, the machinery mesa top are leaned on
Nearly gear train one end is provided with M1Plane mirror, compensating glass B and beam splitter A, and mono- surface beam splitter A is coated with half transmitting metal
Film is provided with mobile platform on the sliding rail, and mobile platform is located at M2Plane mirror outer end, mobile platform by adjust screw with
Sliding rail is fixedly mounted, and is provided with digital display rule at the top of the mobile platform.
2. the transformation of michelson interferometer measurement system according to claim 1, it is characterised in that: the digital display rule
Upper surface and M2Plane mirror platform upper surface is concordant.
3. the transformation of michelson interferometer measurement system according to claim 1, it is characterised in that: the mobile platform
Middle part setting is fluted, and precision lead screw through-going recess.
4. the transformation of michelson interferometer measurement system according to claim 1, it is characterised in that: the compensating glass B
It is arranged in parallel with beam splitter A, the M2Plane mirror and the M1Plane mirror is vertically arranged, and M2It is between plane mirror and compensating glass B
45 degree of angle settings, the M1In 45 degree of angle settings between plane mirror and beam splitter A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811201596.6A CN109373891A (en) | 2018-10-16 | 2018-10-16 | The transformation of michelson interferometer measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811201596.6A CN109373891A (en) | 2018-10-16 | 2018-10-16 | The transformation of michelson interferometer measurement system |
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| CN109373891A true CN109373891A (en) | 2019-02-22 |
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| CN201811201596.6A Pending CN109373891A (en) | 2018-10-16 | 2018-10-16 | The transformation of michelson interferometer measurement system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017907A (en) * | 2019-05-23 | 2019-07-16 | 长春禹衡时代光电科技有限公司 | A kind of Michelson's interferometer and its digital display transmission device |
| CN111665620A (en) * | 2020-06-10 | 2020-09-15 | 伊普希龙（天津）科技有限公司 | Michelson interferometer measuring device and measuring method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879884A (en) * | 2012-10-26 | 2013-01-16 | 四川大学 | Fixing method for movable plane mirror of michelson interferometer |
| CN106128249A (en) * | 2016-08-25 | 2016-11-16 | 吉林大学 | A kind of Michelson interference experimental provision |
-
2018
- 2018-10-16 CN CN201811201596.6A patent/CN109373891A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879884A (en) * | 2012-10-26 | 2013-01-16 | 四川大学 | Fixing method for movable plane mirror of michelson interferometer |
| CN106128249A (en) * | 2016-08-25 | 2016-11-16 | 吉林大学 | A kind of Michelson interference experimental provision |
Non-Patent Citations (2)
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| 林二妹 等: "迈克尔逊干涉仪的调节技巧", 《仪器仪表用户》 * |
| 梁小冲 等: "迈克耳孙干涉仪圆心位置微调系统的设计", 《物理实验》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017907A (en) * | 2019-05-23 | 2019-07-16 | 长春禹衡时代光电科技有限公司 | A kind of Michelson's interferometer and its digital display transmission device |
| CN111665620A (en) * | 2020-06-10 | 2020-09-15 | 伊普希龙（天津）科技有限公司 | Michelson interferometer measuring device and measuring method thereof |
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Application publication date: 20190222 |
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