CN108317971A - A kind of angle detection device - Google Patents
A kind of angle detection device Download PDFInfo
- Publication number
- CN108317971A CN108317971A CN201810086855.9A CN201810086855A CN108317971A CN 108317971 A CN108317971 A CN 108317971A CN 201810086855 A CN201810086855 A CN 201810086855A CN 108317971 A CN108317971 A CN 108317971A
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- photonic crystal
- light
- module
- rotating module
- artificial opals
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The invention discloses a kind of angle detection devices, can be detected to the rotational angle of equipment rotary shaft.It includes parallel light tube, semi-transparent semi-reflecting lens, rotating module, convex lens, collects optical fiber, fiber spectrometer, processing module and display module；The rotating module is made of orthogonal artificial opals' photonic crystal and reflective mirror so that the light beam for passing in and out rotating module is antiparallel；There are peak values with the variation of wavelength for the luminous intensity of the light of artificial opals' photonic crystal reflection, and the corresponding wavelength value of the reflection peak changes with the variation of the incident angle of the incident light of directive artificial opals' photonic crystal；The processing module is that the rotational angle of rotating module is calculated according to the correspondence of the rotational angle and the luminous intensity peak wavelength of the reflected light reflected from artificial opals' photonic crystal of rotating module.The present invention is compared with the existing technology, it can be achieved that heed contacted measure, will not interfere the rotation of rotary shaft.
Description
Technical field
The invention belongs to detection technique field, it is related to the detection to rotary shaft rotational angle, more particularly to mechanical equipment
The detection of middle rotary shaft rotational angle.
Background technology
Angle measurement unit is suffered from the various fields such as industry, maritime affairs, military, geographical, drilling well, machinery and is widely answered
With.There is rotary shaft in many mechanical equipments, and needs to be detected the rotational angle of rotary shaft.Existing angle detection
Device generally can directly or indirectly connect together with rotary shaft, and the measurement of rotational angle is realized by associated apparatus such as gears.
However, this design the rotation for influencing whether rotary shaft, increase friction loss, and occupy the space of rotary shaft position all
It is bigger.A kind of novel angle detection device is thus needed, the influence rotated to rotary shaft is reduced.
Photonic crystal is artificial micro-structure material made of being arranged by the medium period of different refractivity, dielectric constant
There is periodic arrangement in space so that band structure is generated when light is propagated wherein.The wave of a certain frequency range cannot be
It is propagated in this periodic structure, that is to say, that this structure itself has " forbidden band ".People can be by certain to photonic crystal
The control to photon behavior is realized in the change of parameter.For example, in terms of sensing detection, patent CN102680429A proposes one kind
Using the microcavity gas sensor of photonic crystal, gas refracting index can be realized and be detected.Patent CN102494816B proposes one
The method and apparatus that kind is detected pressure based on photonic crystal fiber.
Invention content
The present invention is above-mentioned in order to solve the problems, such as, provides a kind of angle detection device, can conveniently and efficiently survey
Shaft rotational angle is obtained, and the rotation of countershaft is avoided to generate interference.
The present invention uses following technical scheme：
A kind of angle detection device comprising parallel light tube, semi-transparent semi-reflecting lens, rotating module, convex lens, collect optical fiber,
Fiber spectrometer, processing module, display module；The rotating module further comprises artificial opals' photonic crystal and reflective mirror；
Artificial opals' photonic crystal and reflective mirror are mutually perpendicular to, and its position that is in contact is located at the rotating shaft axis of determinand
Position；The directional light that the parallel light tube is sent out enters rotating module after penetrating semi-transparent semi-reflecting lens, a part of in rotating module
Light is again by mirror reflection after the reflection of artificial opals' photonic crystal, and another part light is after mirror reflection again by artificial egg
White stone photonic crystal reflection, this two parts light are equal with the incidence angle that artificial opals' photon crystal surface is formed so that reflection
The luminous intensity of light is identical with the situation of change of wavelength；What the reflected collimated light beam of rotating module was sent out with parallel light tube
Collimated light beam is mutually parallel, which reflexes to convex lens by semi-transparent semi-reflecting lens, then by convex lens focus
To the input terminal for collecting optical fiber；The collection optical fiber exports optical signal to fiber spectrometer；The fiber spectrometer will receive
To optical signal be converted into electric signal, and by electric signal output to processing module；The processing module transmits fiber spectrometer
Electric signal carry out analysis calculating, result of calculation is shown by display module.
In above-mentioned technical proposal, artificial opals' photonic crystal is made of polymer or earth silicon material.
In above-mentioned technical proposal, there are peaks with the variation of wavelength for the luminous intensity of the reflected light of the rotating module
Value, and the corresponding wavelength value of the reflection peak with the variation of the incident angle of the incident light of directive artificial opals' photonic crystal and
Change.
In above-mentioned technical proposal, the processing module be according to the rotational angle of rotating module with from artificial opals' light
The correspondence of the luminous intensity peak wavelength of the reflected light of sub- crystal reflection, is calculated the rotational angle of rotating module.
Compared with current technology, the characteristics of present invention utilizes photonic crystals, when beam of white light enters from different angles
When penetrating, photonic crystal is different to the albedo of the light of different wave length, and therefore, fixed incidence light direction carries out photonic crystal
Rotation process, you can the incident direction for relatively changing incident light receives the reflected light of photonic crystal and analyzes its light intensity
Degree peak value, which corresponds to optical wavelength, can be calculated the angle of rotation.
The invention has the characteristics that and advantageous effects：
1, angle detection device of the invention, since it is to be based on being handled and being divided from the reflected light of rotating module
Analysis is realized heed contacted measure, will not be interfered to the rotation of rotary shaft.
2, the structure of artificial opals' photonic crystal is adjustable, therefore can realize and be supervised to the reflected light of different wavelength range
It surveys, the interference of peripheral light can be avoided to a certain extent.
Description of the drawings
Fig. 1 is the overall structure diagram of angle detection device of the present invention；
Fig. 2 is reflected light of the incident light of different incidence angles in the embodiment of the present invention one on artificial opals' photonic crystal
Spectrum；
In figure, 1- parallel light tubes, 2- semi-transparent semi-reflecting lens, 3- rotating modules, 4- convex lenses, 5- collection optical fiber, 6- optical fiber light
Spectrometer, 7- processing modules, 8- display modules, 9- artificial opals' photonic crystals, 10- reflective mirrors.
Specific implementation mode
To keep the technical solution of the use of the new type clearer, below in conjunction with attached drawing and and the present invention is made of specific example
It further illustrates, but protection scope of the present invention is not limited to this.
As shown in Figure 1, angle detection device of the present invention, can be used for being detected the rotational angle of machine rotary shaft.Its
Including parallel light tube 1, semi-transparent semi-reflecting lens 2, rotating module 3, convex lens 4 collects optical fiber 5, fiber spectrometer 6, processing module 7,
Display module 8；The rotating module 3 further comprises artificial opals' photonic crystal 9 and reflective mirror 10；The artificial opals
Photonic crystal 9 and reflective mirror 10 are mutually perpendicular to, and the rotating shaft axis position A of determinand is fixed at its position that is in contact；Institute
It states after the directional light that parallel light tube 1 is sent out penetrates semi-transparent semi-reflecting lens 2 and enters rotating module 3, a part of light is through artificial opals' light
Sub- crystal 9 is reflected by reflective mirror 10 again after reflecting, and another part light is brilliant by artificial opals' photon again after the reflection of reflective mirror 10
Body 9 reflects；3 reflected light beam of the rotating module reflexes to convex lens 4 by semi-transparent semi-reflecting lens 2, then is focused by convex lens 4
To the input terminal for collecting optical fiber 5；The collection optical fiber 5 exports optical signal to fiber spectrometer 6；The fiber spectrometer 6 will
The optical signal received is converted into electric signal, and by electric signal output to processing module 7；The processing module 7 is to fiber spectrum
The electric signal that instrument 6 transmits carries out analysis calculating, and result of calculation is shown by display module 8.
Embodiment one
The present embodiment connects all parts according to angle detection device shown in FIG. 1.
The rotational angle of rotary shaft is provided first：When reflective mirror 10 sends out light with parallel light tube 1 in rotating module 3
When beam is mutually perpendicular to, and the front of the light beam directive reflective mirror 10, it is believed that the angle of rotary shaft rotation at this time is 0 degree；When turn
When artificial opals' photonic crystal 9 is mutually perpendicular to the light beam that parallel light tube 1 is sent out in dynamic model block 3, and light beam directive people
Make the front of opal photonic crystal 9, it is believed that the angle of rotary shaft rotation at this time is 90 degree.Detection range of the device to angle
It is 0~90 degree.
Its specific detection process is：The directional light that parallel light tube 1 is sent out enters rotating module after penetrating semi-transparent semi-reflecting lens 2
3, a part of light is reflected by reflective mirror 10 again after the reflection of artificial opals' photonic crystal 9, and another part light is anti-through reflective mirror 10
It is reflected again by artificial opals' photonic crystal 9 after penetrating, this two parts light is to the incident incident light of artificial opals' photonic crystal 9
Incident angle is equal so that the corresponding wavelength of reflection peak is identical；3 reflected light of rotating module is reflected by semi-transparent semi-reflecting lens 2
To convex lens 4, then the input terminal for collecting optical fiber 5 is focused to by convex lens 4；Optical fiber 5 is collected to export optical signal to fiber spectrum
Instrument 6；Fiber spectrometer 6 analyzes optical signal to obtain reflection peak wavelength, and by the wavelength electric signal output to processing module
7；Processing module 7 is according to the reflection peak of the rotational angle of rotating module 3 and the reflected light reflected from artificial opals' photonic crystal 9
The correspondence of wavelength and the rotational angle that rotating module 3 is calculated, and pass through display module 8 and show result of calculation.
The processing module 7 is microcontroller；
The display module 8 is liquid crystal display；
Artificial opals' photonic crystal 9 is made of polymer；
There are reflection peaks for the luminous intensity that artificial opals' photonic crystal 9 reflects, and the corresponding wavelength of the reflection peak with
Change to the change of the incident angle of the incident light of 9 incidence of artificial opals' photonic crystal.
The liquid crystal display of the display module 8 shows the result of calculation of microcontroller.
As shown in Fig. 2, the reflection peak for the reflected light that artificial opals' photonic crystal 9 in embodiment one reflects is with incident light
Incident angle increase and to shortwave direction move.When rotating module 3 rotates, artificial opals' light from rotating module 3
The reflection peak of 9 reflected reflected light of sub- crystal will change, i.e., different reflection peaks is corresponded to for different corners
Wavelength.The rotational angle of rotating module 3 is calculated according to the correspondence of reflection peak wavelength for processing module 7.Finally by
Display module 8 is shown.
The present invention will not interfere the rotation of rotary shaft, and detection is simple, can be widely used for being rotated in mechanical equipment
The detection of axis rotational angle.
The above is only one embodiment of the present of invention, within the spirit and principles of the present invention made by any repair
Change, improve, equivalent replacement etc., should be included in scope of the claims of the present invention.The technical staff of the industry answers
The understanding, the present invention also have various changes and modifications, such as：If increasing in rotating module 3 artificial opals' photonic crystal 9 and anti-
Light microscopic quantity, or the two is extended, you can increase angle detection range, these changes and improvements both fall within the present invention claims
In the range of protection.
Claims (5)
1. a kind of angle detection device, it is characterised in that including parallel light tube (1), semi-transparent semi-reflecting lens (2), rotating module (3), convex
Lens (4) collect optical fiber (5), fiber spectrometer (6), processing module (7) and display module (8)；The rotating module (3) into
One step includes artificial opals' photonic crystal (9) and reflective mirror (10)；Artificial opals' photonic crystal (9) and reflective mirror
(10) it is mutually perpendicular to, and the rotating shaft axis position (A) of determinand is fixed at its position that is in contact；The parallel light tube (1)
The directional light sent out enters rotating module (3) afterwards through semi-transparent semi-reflecting lens (2), and a part of light is through artificial opals' photonic crystal
(9) it is reflected again by reflective mirror (10) after reflecting, another part light is brilliant by artificial opals' photon again after reflective mirror (10) reflection
Body (9) reflects；The reflected light beam of the rotating module (3) reflexes to convex lens (4) by semi-transparent semi-reflecting lens (2), then by convex
Lens (4) focus to the input terminal for collecting optical fiber (5)；The collection optical fiber (5), which exports optical signal, gives fiber spectrometer (6)；
The optical signal received is converted into electric signal by the fiber spectrometer (6), and gives electric signal output to processing module (7)；Institute
It states the electric signal that processing module (7) transmits fiber spectrometer (6) and carries out analysis calculating, shown and calculated by display module (8)
As a result.
2. angle detection device according to claim 1, it is characterised in that artificial opals' photonic crystal (7) is by gathering
Close object or earth silicon material composition.
3. angle detection device according to claim 1, it is characterised in that artificial opals' photonic crystal (9) reflection
The luminous intensity of light with the variation of wavelength, there are peak values, and the corresponding wavelength value of the reflection peak is with directive artificial opals' photon
The variation of the incident angle of the incident light of crystal (9) and change.
4. angle detection device according to claim 1, it is characterised in that the processing module (7) is according to rotating module
(3) correspondence of rotational angle and the luminous intensity peak wavelength of the reflected light reflected from artificial opals' photonic crystal (9),
The rotational angle of rotating module is calculated.
5. angle detection device according to claim 1, it is characterised in that the rotational angle of the angle detection device measures
Ranging from 0~90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810086855.9A CN108317971B (en) | 2018-01-30 | 2018-01-30 | Angle detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810086855.9A CN108317971B (en) | 2018-01-30 | 2018-01-30 | Angle detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108317971A true CN108317971A (en) | 2018-07-24 |
| CN108317971B CN108317971B (en) | 2023-06-16 |
Family
ID=62888121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810086855.9A Active CN108317971B (en) | 2018-01-30 | 2018-01-30 | Angle detection device |
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| Country | Link |
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| CN (1) | CN108317971B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112781528A (en) * | 2019-11-07 | 2021-05-11 | 华东交通大学 | Railway isolator divide-shut brake monitoring system |
| US20220359139A1 (en) * | 2020-01-30 | 2022-11-10 | East China Jiaotong University | Sensor system for measuring angle of gate of isolating switch of overhead lines |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001188139A (en) * | 1999-12-28 | 2001-07-10 | Minolta Co Ltd | Optical module |
| JP2005062505A (en) * | 2003-08-13 | 2005-03-10 | Matsushita Electric Ind Co Ltd | Bidirectional optical module, device for performing bidirectional optical communication therewith, and bidirectional optical transmission system |
| CN101866089A (en) * | 2010-05-19 | 2010-10-20 | 中国科学院半导体研究所 | Method for realizing optical switch by utilizing photonic crystal panel to conduct formant displacement |
| US20130123985A1 (en) * | 2010-02-15 | 2013-05-16 | Hideaki Hirai | Transparent object detection system and transparent flat plate detection system |
| CN106862759A (en) * | 2017-04-19 | 2017-06-20 | 中国科学技术大学 | The processing unit (plant) and processing method of a kind of fiber end face |
| CN207850319U (en) * | 2018-01-30 | 2018-09-11 | 河南理工大学 | A kind of angle detection device |
-
2018
- 2018-01-30 CN CN201810086855.9A patent/CN108317971B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001188139A (en) * | 1999-12-28 | 2001-07-10 | Minolta Co Ltd | Optical module |
| JP2005062505A (en) * | 2003-08-13 | 2005-03-10 | Matsushita Electric Ind Co Ltd | Bidirectional optical module, device for performing bidirectional optical communication therewith, and bidirectional optical transmission system |
| US20130123985A1 (en) * | 2010-02-15 | 2013-05-16 | Hideaki Hirai | Transparent object detection system and transparent flat plate detection system |
| CN101866089A (en) * | 2010-05-19 | 2010-10-20 | 中国科学院半导体研究所 | Method for realizing optical switch by utilizing photonic crystal panel to conduct formant displacement |
| CN106862759A (en) * | 2017-04-19 | 2017-06-20 | 中国科学技术大学 | The processing unit (plant) and processing method of a kind of fiber end face |
| CN207850319U (en) * | 2018-01-30 | 2018-09-11 | 河南理工大学 | A kind of angle detection device |
Non-Patent Citations (1)
| Title |
|---|
| 周进朝;余文芳;黄佐华: "偏振光反射法测量薄膜参数", 激光与光电子学进展 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112781528A (en) * | 2019-11-07 | 2021-05-11 | 华东交通大学 | Railway isolator divide-shut brake monitoring system |
| US20220359139A1 (en) * | 2020-01-30 | 2022-11-10 | East China Jiaotong University | Sensor system for measuring angle of gate of isolating switch of overhead lines |
| US11501935B1 (en) * | 2020-01-30 | 2022-11-15 | East China Jiaotong University | Sensor system for measuring angle of gate of isolating switch of overhead lines |
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| Publication number | Publication date |
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| CN108317971B (en) | 2023-06-16 |
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