CN108444406A - A kind of flexible optical sensor - Google Patents
A kind of flexible optical sensor Download PDFInfo
- Publication number
- CN108444406A CN108444406A CN201810480514.XA CN201810480514A CN108444406A CN 108444406 A CN108444406 A CN 108444406A CN 201810480514 A CN201810480514 A CN 201810480514A CN 108444406 A CN108444406 A CN 108444406A
- Authority
- CN
- China
- Prior art keywords
- flexible optical
- connector
- optical waveguide
- light source
- photodetector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 99
- 239000000084 colloidal system Substances 0.000 claims abstract description 30
- 238000002360 preparation method Methods 0.000 claims abstract description 3
- 108010010803 Gelatin Proteins 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 14
- 239000008273 gelatin Substances 0.000 claims description 14
- 229920000159 gelatin Polymers 0.000 claims description 14
- 235000019322 gelatine Nutrition 0.000 claims description 14
- 235000011852 gelatine desserts Nutrition 0.000 claims description 14
- 239000003292 glue Substances 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 238000009738 saturating Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000005622 photoelectricity Effects 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Integrated Circuits (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The present invention provides a kind of flexible optical sensors and preparation method thereof, the flexible optical sensor includes light source, photodetector and flexible optical waveguide, one end of the flexible optical waveguide is connect with light source by the first connector and keeps alignment, the other end of the flexible optical waveguide is connect with photodetector by the second connector and keeps alignment, the outer surface of the flexible optical waveguide is equipped with soft colloid clad member, and the both ends of the soft colloid clad member are connect with the first connector, the second connector respectively.Technical solution using the present invention, manufacturing method is simple, and obtained flexible optical sensor can be very good to realize the measurement to object deformation, and precision is high, stability is good, reproducible, electromagnetism interference, small, at low cost.
Description
Technical field
The present invention relates to a kind of optical sensor more particularly to a kind of flexible optical sensors.
Background technology
In recent years, the limited development that restrict intelligent equipment of traditional sensors suitable environment, cannot be satisfied people
Growing demand.The flexible sensor occurred with new material, technique and machine-building progress is because its matter is soft, low
Modulus, the feature supplements deficiency of traditional sensors of easy deformation, have pushed the further development in intelligent equipment field.
Currently, common be generally flexible resistor sensor using more flexible sensor, this sensor cost is relatively low, but
That there is precision is low, stability is poor, poor repeatability, can not electromagnetism interference the shortcomings of, this largely reduces flexible biography
The application market of sensor.Therefore develop that a precision is high, stability is good, reproducible, electromagnetism interference, it is small and manufacture
The simple flexible optical sensor of method is of great significance to the expansion of flexible sensor application market.
Invention content
For the above technical problem, the invention discloses a kind of flexible optical sensor, can be used for realizing to foreign objects
The measurement that the bodily form becomes has good precision height, stability, reproducible, electromagnetism interference, small advantage.
In this regard, the technical scheme is that：
A kind of flexible optical sensor comprising light source, photodetector and flexible optical waveguide, one end of the flexible optical waveguide
It connect and keep alignment, the other end of the flexible optical waveguide to pass through the second connector and light with light source by the first connector
Electric explorer connects and keeps alignment, and the outer surface of the flexible optical waveguide is equipped with soft colloid clad member, described soft
The both ends of colloid clad member are connect with the first connector, the second connector respectively.
Wherein, the first connector, the second connector can have any shape, can by the first connector, the second connector
To ensure light source, photodetector and the alignment of optical waveguide.The soft colloid is non-rigid material, and soft texture has
The characteristic can optionally stretch, compress, being bent.Light source, photodetector are connected by welding lead with external circuit.The photoelectricity
Detector is any photoelectric cell that can convert optical signal into electric signal.The optical signal of the photodetector detection is light
By force, polarization, wavelength, phase, frequency.
The flexible optical waveguide is regular columnar body, has flexible characteristic, has to the light of light source sent out certain
Permeability.
Using above-mentioned technical proposal, the light that light source is sent out, after flexible optical waveguide, into photodetector, photoelectricity is visited
It surveys device and converts optical signal into electric signal.When flexible optical waveguide is deformed upon with soft colloid clad member, interior lights
Some or all of parameter will change to play the role of sensing.Soft colloid clad member plays flexible optical waveguide
Protective effect.When soft optical waveguide deforms upon, incidence angle of the interior lights at soft optical waveguide and Air Interface reduces,
This can cause to be transmitted to the light intensity increase lost in air, be reflected back the light detected by photodetector in soft optical waveguide
It is strong to reduce.
Further, the column that the flexible optical waveguide and soft colloid clad member are formed, can be cylinder,
Any regular columnar body for meeting actual operation requirements such as prism.
Further, the light source is monochromatic light or nonmonochromatic light.
As a further improvement on the present invention, the flexible optical sensor includes connector cover plate, the connector lid
Piece is respectively provided at the lateral surface of the first connector, the second connector；Further, the connector cover plate is connect with first respectively
Part, the second connector lateral surface be fixedly connected by quick-drying gelatin.
As a further improvement on the present invention, the connector cover plate is circle, and the connector cover plate is equipped with through-hole,
The pin of the light source or photodetector is pierced by from through-hole.
As a further improvement on the present invention, first connector, the second connector are internally provided with flexible optical waveguide and insert
Enter hole, light source or photodetector and is inserted into hole；Flexible optical waveguide insertion hole, light source or photodetector insertion hole are adjacent,
And it is coaxial aperture.Using this technical solution, it is ensured that the alignment of flexible optical waveguide and light source, photodetector.
As a further improvement on the present invention, it is inserted positioned at flexible optical waveguide in first connector, the second connector
The outside for entering hole is equipped with the groove being connect with soft colloid clad member.Groove can ensure pouring into for soft colloid, make connection
Part is fixed with flexible optical waveguide.
As a further improvement on the present invention, first connector, the second connector are inserted into positioned at flexible optical waveguide
The outside in hole is equipped with the inclined-plane being connect with soft colloid clad member.Using this technical solution, increase connector and soft colloid
The contact area of clad member material makes connector preferably be fixed with flexible optical waveguide.
As a further improvement on the present invention, it is T-shaped hole that the light source or photodetector, which are inserted into hole,.
As a further improvement on the present invention, the flexible optical waveguide is regular columnar body.
As a further improvement on the present invention, the light source is fixedly connected with the first connector by transparent quick-drying gelatin, institute
Photodetector is stated to be fixedly connected by transparent quick-drying gelatin with the second connector.
As a further improvement on the present invention, the material of the soft colloid clad member is silica gel.
The present invention also provides a kind of preparation methods of flexible optical sensor as described above, including following step
Suddenly：
The light source of attachment glue is inserted into photodetector in the first connector and the second connector and carries out by step S1 respectively
It is fixedly connected；
Step S2 polishes smooth the end face of the flexible optical waveguide of one section of random length；
Attachment glue is distinguished in the both ends of flexible optical waveguide by step S3, and the first connector is inserted into one end of flexible optical waveguide
In be fixedly connected with light source, the other end of flexible optical waveguide is inserted into and is fixedly connected with flexible optical waveguide with photodetector；
It is further preferred that the adhesive is transparent quick-drying gelatin.
Flexible optical waveguide is wrapped in soft colloid clad member by step S4, and soft colloid clad member is made to distinguish
It is connect with the first connector and the second connector.
Compared with prior art, beneficial effects of the present invention are：
Technical solution using the present invention, manufacturing method is simple, and obtained flexible optical sensor can be very good to realize to object
The measurement that the bodily form becomes, and precision is high, stability is good, reproducible, electromagnetism interference, small, it is at low cost.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of flexible optical sensor of the present invention.
Fig. 2 is a kind of structural schematic diagram of the deformation of flexible optical sensor of the present invention.
Fig. 3 is the structural schematic diagram of the connector of the embodiment of the present invention 1.
Fig. 4 is the structural schematic diagram of the connector of the embodiment of the present invention 2.
Reference numeral includes：1- light sources, 2- photodetectors, the first connectors of 31-, the second connectors of 32-, 4- flexible lights
Waveguide, the soft colloids of 5-, 6- conducting wires, 7- connector cover plates；33- flexible optical waveguides are inserted into hole, and 34- second is inserted into hole, and 35- is recessed
Slot, the inclined-planes 36-.
Specific implementation mode
Below in conjunction with the accompanying drawings, the preferably embodiment of the present invention is described in further detail.
Embodiment 1
As shown in Fig. 1 ~ Fig. 3, a kind of flexible optical sensor comprising light source 1, photodetector 2, attachment device 3, conducting wire 6,
Attachment device cover plate 7.Wherein, the light source 1 is fixedly connected by the first connector 31 with one end of flexible optical waveguide, the light
Electric explorer 2 is fixed on the other end of flexible optical waveguide by the second connector 32, and connector cover plate 7 is fixed on the first connector
31, on the rear end face of the second connector 32, flexible optical waveguide 4 is wrapped in soft colloid 5, and a kind of rule are formed with soft colloid 5
Then column.Light source 1 and photodetector 2 are connect by conducting wire 6 with external circuit respectively.Specifically, flexible optical waveguide 4 is one
There is kind regular columnar body flexible characteristic, the optical waveguide 4 to have certain permeability to the light that light source 1 is sent out.It is described
Soft colloid 5 is non-rigid material, has the characteristic that can be optionally stretched, shrink, being bent.The light source 1 is monochromatic light or non-list
Coloured light.The photodetector 2 is any photoelectric cell that can convert optical signal into electric signal.The photodetector 2
The optical signal of detection is light intensity, polarization, wavelength, phase, frequency.
The connector cover plate 7 is round and the hole with there are two, and the pin of light source 1 and photodetector 2 passes through two holes
It is pierced by.
Using this technical solution, the light that light source 1 is sent out, after flexible optical waveguide 4, into photodetector 2, photoelectricity is visited
It surveys device 2 and converts optical signal into electric signal.When flexible optical waveguide 4 is deformed upon with soft colloid 5, the part of interior lights
Or whole parameters will change, the parameter of light includes light intensity, polarization, wavelength, phase, frequency.Soft colloid 5 is to flexible light wave
4 are led to play a protective role.
When soft optical waveguide 4 deforms upon, incidence angle of the interior lights at soft optical waveguide 4 and Air Interface subtracts
Small, this can cause to be transmitted to the light intensity increase lost in air, be reflected back in soft optical waveguide 4 and detected by photodetector 2
The light intensity arrived reduces.Shown in referring to Figures 1 and 2, Fig. 1 show sensor normal condition, and Fig. 2 is sensor deformed state.
First connector 31 is identical with the structure of the second connector 32, is identical connector, as shown in figure 3, described
First connector 31, the second connector 32 are internally provided with flexible optical waveguide and are inserted into hole 33, are inserted into for light source or photodetector
Second be inserted into hole 34；Flexible optical waveguide insertion hole 33, second insertion hole 34 is adjacent, and is coaxial aperture, it is ensured that soft
Property optical waveguide 4 and light source 1, photodetector 2 alignment.Using this technical solution, it is ensured that flexible optical waveguide and light source
1, the alignment of photodetector 2.
In first connector 31, the second connector 32 the outside that hole 33 is inserted into positioned at flexible optical waveguide be equipped with it is soft
Property colloid 5 connect groove 35.Groove 35 can ensure pouring into for soft colloid 5, and connector is made to be fixed with flexible optical waveguide 4.
The light source 1 is fixedly connected with the first connector 31 by transparent quick-drying gelatin, and the photodetector 2 and second connects
Fitting 32 is fixedly connected by transparent quick-drying gelatin, and the transparent rapid-curing cutback for the model PR1500 that 3M is produced can be selected in the quick-drying gelatin
Glue.
Above-mentioned flexible optical sensor is prepared using following steps：
First, the light source for adhering to quick-drying gelatin and photodetector are inserted into respectively in the first connector and the second connector and consolidated
Fixed connection, waits air-drying.Wherein the transparent quick-drying gelatin for the model PR1500 that 3M is produced can be selected in quick-drying gelatin.
Second, the end face of the flexible optical waveguide of one section of random length is polished smooth.
Attachment glue is distinguished in the both ends of flexible optical waveguide by third, and the first connection is inserted into one end of flexible optical waveguide
It is fixedly connected with light source in part, the other end of flexible optical waveguide is inserted into, flexible optical waveguide and photodetector are fixed into company
It connects；It is further preferred that the adhesive is transparent quick-drying gelatin.
4th, the surface attachment quick-drying gelatin of connector cover plate is fixed with attachment device rear end face.
5th, flexible optical waveguide is wrapped in soft colloid, a kind of regular columnar body is formed with soft glue body.
Embodiment 2
On the basis of embodiment 1, as shown in figure 4, first connector 31, the structure of the second connector 32 and embodiment are not
Together, first connector 31, the second connector 32 are equipped with and soft colloid 5 in the outside for being inserted into hole 33 positioned at flexible optical waveguide
The inclined-plane 36 of connection.Using this technical solution, increase the contact surface of the first connector 31, the second connector 32 and soft colloid 5
Product, makes connector preferably be fixed with flexible optical waveguide.
The specific implementation mode of the above is the better embodiment of the present invention, not limits the specific of the present invention with this
Practical range, the scope of the present invention includes being not limited to present embodiment, made by all shape, structures according to the present invention
Equivalence changes are within the scope of the invention.
Claims (7)
1. a kind of flexible optical sensor, it is characterised in that：It includes light source, photodetector and flexible optical waveguide, described soft
One end of property optical waveguide connect with light source by the first connector and keeps alignment, the other end of the flexible optical waveguide to pass through
Second connector connect with photodetector and keeps alignment, the outer surface of the flexible optical waveguide to be coated equipped with soft colloid
The both ends of component, the soft colloid clad member are connect with the first connector, the second connector respectively.
2. flexible optical sensor according to claim 1, it is characterised in that：It includes connector cover plate, the connection
Part cover plate is respectively provided at the lateral surface of the first connector, the second connector.
3. flexible optical sensor according to claim 2, it is characterised in that：The connector cover plate is equipped with through-hole,
The pin of the light source or photodetector is pierced by from through-hole.
4. flexible optical sensor according to claim 1, it is characterised in that：First connector, the second connector
It is internally provided with flexible optical waveguide and is inserted into hole, light source or photodetector insertion hole；The flexible optical waveguide is inserted into hole, light source or light
Electric explorer insertion hole is adjacent, and is coaxial aperture.
5. flexible optical sensor according to claim 1, it is characterised in that：The flexible optical waveguide is with translucency
Regular columnar body.
6. flexible optical sensor according to claim 1, it is characterised in that：The light source passes through saturating with the first connector
Bright quick-drying gelatin is fixedly connected, and the photodetector is fixedly connected with the second connector by transparent quick-drying gelatin.
7. the preparation method of the flexible optical sensor as described in claim 1 ~ 6, it is characterised in that：It includes the following steps：
The light source of attachment glue is inserted into photodetector in the first connector and the second connector and carries out by step S1 respectively
It is fixedly connected；
Step S2 polishes smooth the end face of the flexible optical waveguide of one section of random length；
Attachment glue is distinguished in the both ends of flexible optical waveguide by step S3, and the first connector is inserted into one end of flexible optical waveguide
In be fixedly connected with light source, the other end of flexible optical waveguide is inserted into and is fixedly connected with flexible optical waveguide with photodetector；
Flexible optical waveguide is wrapped in soft colloid clad member by step S4, and makes soft colloid clad member respectively with
A connection piece and the connection of the second connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810480514.XA CN108444406A (en) | 2018-05-18 | 2018-05-18 | A kind of flexible optical sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810480514.XA CN108444406A (en) | 2018-05-18 | 2018-05-18 | A kind of flexible optical sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108444406A true CN108444406A (en) | 2018-08-24 |
Family
ID=63204787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810480514.XA Pending CN108444406A (en) | 2018-05-18 | 2018-05-18 | A kind of flexible optical sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108444406A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114486020A (en) * | 2022-01-25 | 2022-05-13 | 西湖大学 | A flexible surface pressure sensor based on optical waveguide |
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|---|---|---|---|---|
| CN102272704A (en) * | 2009-01-07 | 2011-12-07 | 伊斯奇里因特菲斯技术股份有限公司 | Detector surface |
| CN102301263A (en) * | 2009-01-28 | 2011-12-28 | 日立化成工业株式会社 | Method for manufacturing optical waveguide, and photoelectric composite wiring board |
| CN106645793A (en) * | 2017-02-23 | 2017-05-10 | 北京航空航天大学 | Flow velocity sensor based on polymer optical waveguide |
| CN106798549A (en) * | 2017-02-27 | 2017-06-06 | 清华大学 | A kind of blood oxygen transducer based on flexible extending substrate |
| CN106840226A (en) * | 2017-03-29 | 2017-06-13 | 南京大学 | Flexible wearable health sensor and its preparation and measurement method based on micro optical fiber structure |
| CN107692377A (en) * | 2017-11-21 | 2018-02-16 | 深圳市迈步机器人科技有限公司 | A kind of gloves |
| CN208505254U (en) * | 2018-05-18 | 2019-02-15 | 深圳市博讯飞扬科技有限公司 | A kind of flexible optical sensor |
-
2018
- 2018-05-18 CN CN201810480514.XA patent/CN108444406A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102272704A (en) * | 2009-01-07 | 2011-12-07 | 伊斯奇里因特菲斯技术股份有限公司 | Detector surface |
| CN102301263A (en) * | 2009-01-28 | 2011-12-28 | 日立化成工业株式会社 | Method for manufacturing optical waveguide, and photoelectric composite wiring board |
| CN106645793A (en) * | 2017-02-23 | 2017-05-10 | 北京航空航天大学 | Flow velocity sensor based on polymer optical waveguide |
| CN106798549A (en) * | 2017-02-27 | 2017-06-06 | 清华大学 | A kind of blood oxygen transducer based on flexible extending substrate |
| CN106840226A (en) * | 2017-03-29 | 2017-06-13 | 南京大学 | Flexible wearable health sensor and its preparation and measurement method based on micro optical fiber structure |
| CN107692377A (en) * | 2017-11-21 | 2018-02-16 | 深圳市迈步机器人科技有限公司 | A kind of gloves |
| CN208505254U (en) * | 2018-05-18 | 2019-02-15 | 深圳市博讯飞扬科技有限公司 | A kind of flexible optical sensor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114486020A (en) * | 2022-01-25 | 2022-05-13 | 西湖大学 | A flexible surface pressure sensor based on optical waveguide |
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| PB01 | Publication | ||
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190925 Address after: 529700 No. 13 Minfeng East Road, Hecheng Town, Heshan City, Jiangmen City, Guangdong Province Applicant after: Power Boshi (Guangdong) Intelligent Equipment Co.,Ltd. Address before: 518000 room 316, Baoan District West Street business building, Baoan District Xixiang street, Shenzhen Applicant before: SHENZHEN BOXUN FEIYANG TECHNOLOGY CO.,LTD. |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20180824 |