CN108534809A - A kind of a wide range of fibre-optical bending controllable device - Google Patents
A kind of a wide range of fibre-optical bending controllable device Download PDFInfo
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- CN108534809A CN108534809A CN201810316652.4A CN201810316652A CN108534809A CN 108534809 A CN108534809 A CN 108534809A CN 201810316652 A CN201810316652 A CN 201810316652A CN 108534809 A CN108534809 A CN 108534809A
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- 238000005452 bending Methods 0.000 title claims abstract description 61
- 239000000835 fiber Substances 0.000 claims abstract description 57
- 239000013307 optical fiber Substances 0.000 claims abstract description 47
- 238000009987 spinning Methods 0.000 claims abstract description 22
- 230000033001 locomotion Effects 0.000 claims abstract description 11
- 238000006073 displacement reaction Methods 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009021 linear effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001235 sensitizing effect Effects 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/341—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells controlling the movement of a following part
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
Abstract
This hair provides a kind of a wide range of fibre-optical bending controllable device, including swing offset unit, control unit and optical fiber fixed cell；Swing offset unit includes X, Y screw slide, stepper motor X, Y, Z, mobile platform X, Y and fiber spinning fixed plate.Fiber spinning fixed plate is set on stepper motor Z, the rotation angle for controlling optical fiber；By optical fiber fixed cell fixed optical fiber stage casing part, keep coplanar with the optical fiber front section being placed in fiber spinning fixed plate；Optical fiber one end is connect with light source, and the other end is connect with spectrometer or light power meter；Device controls the movement of each stepper motor by control unit, and then adjusts fibre-optical bending degree.Meanwhile the length that by micrometer caliper, can adjust bending section manually carrys out semi-automatic change bending radius.The present invention is used to control the radius of curvature and bending angle of optical fiber in wide range, and reference data is provided for other performance parameters experiment of optical fiber curvature, bending angle.
Description
Technical field
The invention belongs to control panel technical fields, and in particular to a kind of a wide range of fibre-optical bending controllable device.
Background technology
The advantages that fibre optical sensor is light-weight because small, electromagnetism interference, is paid attention to by more and more scholars.
Wherein fiber grating in the change of small-scale curvature by detecting stress；In large-scale curvature application, fiber grating
The shape for detecting gastroscope on gastroscope can be pasted, realizes the three-dimensional reconstruction of optical fiber shape；Fibre optical sensor is a wide range of curved
The Application in Sensing of bent angle also has data glove, either multimode sensitizing type intensity demodulation type fibre optical sensor, or is based on cloth
The data glove of glug optic fiber grating wavelength Demodulation Type fibre optical sensor, bending radius and bending angle are all in wide variation.
Angular range changes more than 90 degree, and radius of curvature minimum reaches 2-3cm.
In original detection technique, the variation for small curvature is typically chosen and optical fiber is affixed on flexible iron plate, and two
End is measured using displacement platform fixation, and when measuring, the position of non-sensor fibre can be caused with the variation of displacement platform
Variation is set, other errors are introduced.The method that small curvature range measures general selection standard cylinder, the disadvantage is that, bending angle
It is uncontrollable, and the points measured are limited, change the form that can all change sensor fibre every time, introduce other errors.
Invention content
The purpose of the present invention is to provide a kind of a wide range of fibre-optical bending controllable devices.Realize that bending radius is adjusted on a large scale
Whole, bending angle changes from 0-180 degree.
At the same time, it keeps non-sensing section not interfered by other factors in adjustment process, ensures sensing unit
Duan Yufei sensing sections are tangent always, and sensing unit is circular arc, avoid the loss of other non-sensings.
In order to achieve the above object, it devises sensing unit and arc-shaped is presented, the non-sensing unit of real-time ensuring and sensing unit are always
Tangent control program changes the rotation angle of fiber spinning fixed plate, to change the bending radius and bending angle of sensitive zones
Degree.The position of fiber spinning fixed plate is adjusted by adjusting mobile platform Y and mobile platform X realizations, ensure that sensing section
Can be tangent in real time with non-sensing section, curved section is a circular arc.
The technical solution adopted in the present invention is,
A kind of a wide range of fibre-optical bending controllable device, including swing offset unit, control unit and optical fiber fixed cell,
It is characterized in that, the swing offset unit, including X screw slides, Y screw slides, stepper motor X, stepper motor Y, stepping
Motor Z, mobile platform Y, mobile platform X and fiber spinning fixed plate (8)；Wherein, X screw slides are fixed by mobile platform Y
In in Y screw slides, by stepper motor Y control its in Y screw slides it is vertically moving；Stepper motor Z passes through movement
Platform X is fixed in X screw slides, it is controlled in X screw slide upper edge horizontal motions by stepper motor X；Fiber spinning
Fixed plate (8) is set on stepper motor Z, the rotation angle for controlling optical fiber；Pass through the fixed optical fiber of optical fiber fixed cell
Stage casing part keeps coplanar with the optical fiber front section being placed in fiber spinning fixed plate；Optical fiber one end is connect with light source, another
End is connect with spectrometer or light power meter；Device controls the movement of each stepper motor by control unit, and then adjusts optical fiber
Bending degree.
Further, the optical fiber front section setting micro-displacement in above-mentioned fiber spinning fixed plate adjusts unit, along optical fiber
Length direction carries out trace regulation.
Further, above-mentioned micro-displacement adjusts unit and is fixed in fiber spinning fixed plate, and micro-displacement adjusts the shifting of unit
Moved end is connect with light source.
Further, it is micrometer caliper that above-mentioned micro-displacement, which adjusts unit,.Wherein micrometer caliper scope of activities 5-30mm.
Further, above-mentioned optical fiber fixed cell includes fibre clip A, fibre clip B and positioning plate；Distinguish optical fiber stage casing part
It is fixed in fiber spinning fixed plate (8) by fibre clip A and is fixed on positioning plate by fibre clip B.
Further, the stroke accuracy of above-mentioned screw slide is 0.1mm, and the precision of stepper motor Z is 0.18 degree of step angle.
Further, above-mentioned control unit includes step motor control plate and order transmitting terminal, by calculating fibre-optical bending
Angle and length, control stepper motor precisely adjust.
Beneficial effects of the present invention are：
(1) control of bending angle 0-180.
(2) realize bending radius from 0 to the curvature of L/ π control.
(3) during being automatically brought into operation, arc-shaped is presented in bending section, remains bending section and un-flexed section namely senses
It is tangent always between section and non-sensing section, avoid the non-tangent bending loss for leading to bending and introducing.
(4) in bending process, non-sensing section remains tight, will not shake, be bent other will not occur
Deformation, so that experimental result is not introduced remaining interference, avoid introducing other errors.
Description of the drawings
Fig. 1 is the structure chart of the present invention；
Fig. 2 is optical fiber original state figure；
Fig. 3 fibre-optical bendings curvature and bending angle geometrical relationship figure；
In Fig. 1：1X screw slides；2Y screw slides；3 stepper motor X；4 stepper motor Y；5 stepper motor Z；6 movements are flat
Platform Y；7 mobile platform X；8 fiber spinning fixed plates；9 stepper motor shaft couplings；10 micrometer calipers；11LED light sources；12 optical fiber；
13 positioning plates；14 fibre clip B；15 spectrometers or light power meter；16 step motor control plates；17 computer command transmitting terminals；18
Fibre clip A.
In Fig. 2, optical fiber is original state, and a represents the fixing end of optical fiber and light source；B represents rotation node；Ab sections of generations of line segment
Mass color source obtains straightway, and length D1 is one and is relatively fixed value；C stationary nodes；Bc sections of line segment is fibre-optical bending section, long
Degree is L；D represents the connection end of optical fiber and flange；Line segment cd indicates that optical fiber fixes straightway；Optical fiber is original state, a, b,
C, d are horizontal linears on same straight line；
In Fig. 3, at is after t moment sets radius of curvature R or bending angle, and a is in the position of t moment；Bt is t moment b
Position；Dx is that mobile platform X compares mobile distance with first state of value；Dy is that mobile platform Y compares movement with original state
Distance.
Specific implementation mode
The application method of apparatus of the present invention is：Xy sliding platforms initially arrive system zero first, and stepper motor Z is returned to initially
Zero, at this time optical fiber be divided into leading portion, stage casing, back segment, i.e., light source obtains straightway, bending section, fixed straightway.Initial position can
So that three sections of optical fiber are in alignment, and it is a horizontal linear, the central point and optical fiber position-board of stepper motor Z at this time
On fibre clip A right edge distance be D1.The length L, L for measuring bending section are fibre clip A right edges and fibre clip
The length of optical fiber between left side edge B inputs L by the ends PC of computer, the state of this when is original state.Stepper motor
The step angle of Z is 0.18 degree, so, can be bent angle is 0-180 degree, the survey for 1000 groups of data that step-length is 0.18
Amount.
Bending angle is set, it is bending radius that can find out radius of curvature R=L/ θ wherein R, and θ indicates bending angle (radian
Tabulation is shown).It can so obtain and be compared with original state, the offset of Y-axis is dy, and wherein Y leading screws are to move down as positive direction.
The offset d x of x-axis, wherein X leading screws are to move right as positive value.It seeks shown in formula such as formula (1)
XY screw slides first move X-axis, then move Y-axis, and stepper motor Z, which rotates corresponding angle, later can control bending
The change of angle.While bending angle changes, bending radius is also constantly to change.If it is desired to when control curvature, then
θ, dx, dy can be calculated according to L=R θ, be solved by (1), can select to automatically adjust, semi-automatic tune can also be selected
Section.Automatic adjustment, computer command transmitting terminal input R or θ, calculate dy, dx automatically, and Y leading screws and X leading screws is made to carry out corresponding position
It moves.
Semi-automatic adjusting can be finely adjusted radius of curvature under stationary curved angle, can first open fibre clip A, adjust
Micrometer caliper is saved, to push LED light source move distance be D, it is specified that pushing ahead as positive value, and it is negative value to promote backward, then newly
L values be equal to original L values add D.It is closed fibre clip A.Change bending segment length, new L values input computer command is sent
End calculates new dx, dy according to formula (1), and serial ports software is passed to step motor control plate, and XY displacement platforms are in original displacement
On the basis of, carry out smaller amendment.To control bending radius.
Embodiment
Device is as shown in Figure 1, a kind of a wide range of fibre-optical bending controllable device, including swing offset unit, control unit
With optical fiber fixed cell, which is characterized in that the swing offset unit, including X screw slides 1, Y screw slides 2, stepper motor
X3, stepper motor Y4, stepper motor Z5, mobile platform Y6, mobile platform X7 and fiber spinning fixed plate 8；Wherein, X leading screws are slided
Platform 1 is fixed on by mobile platform Y6 in Y screw slides 2, and it is square vertically in 2 upper edge of Y screw slides to control it by stepper motor Y4
To movement；Stepper motor Z5 is fixed on by mobile platform X7 in X screw slides 1, and control it by stepper motor X3 slides in X leading screws
1 upper edge horizontal motion of platform；Fiber spinning fixed plate 8 is set on stepper motor Z5, the rotation angle for controlling optical fiber；
The optical fiber fixed cell includes fibre clip A18, fibre clip B14 and positioning plate 13；Optical fiber stage casing part passes through fibre clip respectively
A18 is fixed in fiber spinning fixed plate 8 and is fixed on positioning plate 13 by fibre clip B14.Optical fiber one end connects with LED light source
It connects, the other end is connect with spectrometer or light power meter；Micrometer caliper is fixed in fiber spinning fixed plate, micrometer caliper
Mobile terminal connect with light source；Device controls the movement of each stepper motor by control unit, and then adjusts fibre-optical bending degree.
The length for determining bending section L first inputs L in computer command transmitting terminal, inputs bending angle θ, can calculate dx,
Dx, dy, θ are sent to step motor control plate by dy, and the stepper motor X being arranged in X screw slides, which can rotate, to be made to be installed on X
The mobile platform X of leading screw carries out the displacement of dx, and the stepper motor being arranged in Y screw slides, which can rotate, makes to be mounted on Y leading screws cunning
The mobile platform Y of platform carries out the displacement of dy, and the stepper motor Z for being installed on slide unit X can rotate θ angles, it is ensured that bending section is one section
Circular arc, and remaining two sections of non-sensor fibre can be tangent with circular arc.The solution formula of dx, dy can be obtained from formula (1).If it is desired to
Bending angle changes from 0-180, directly inputs angle value.Realization automatically controls bending angle.If it is desired to radius of curvature R from
0 arrives L/ π, inputs R.
The fine tuning of semi-automatic realization curvature is adjusted, and fixes a fibre-optical bending angle first, by micrometer caliper, make D1 away from
From reducing or increasing Δ d, the length L to change crooked sensory section increases or reduces Δ d, therefore, it is desirable in computer command
Transmitting terminal inputs new L, then repeatedly above-mentioned steps of front, realizes the manual adjustable of curvature.The calculation formula of radius of curvature：
Certainly, if angle changes from 0-180, curvature will present the reduction of exponential type.To realize curvature on a large scale certainly
It is dynamic adjustable.
Claims (10)
1. a kind of a wide range of fibre-optical bending controllable device, which is characterized in that including swing offset unit, control unit and optical fiber
Fixed cell, which is characterized in that the swing offset unit, including X screw slides (1), Y screw slides (2), stepper motor X
(3), stepper motor Y (4), stepper motor Z (5), mobile platform Y (6), mobile platform X (7) and fiber spinning fixed plate (8)；Its
In, X screw slides (1) are fixed on by mobile platform Y (6) in Y screw slides (2), it is controlled at Y by stepper motor Y (4)
It is vertically moving on thick stick slide unit (2)；Stepper motor Z (5) is fixed on by mobile platform X (7) in X screw slides (1), by
Stepper motor X (3) controls it in X screw slides (1) upper edge horizontal motion；Fiber spinning fixed plate (8) is set to stepping
On motor Z (5), the rotation angle for controlling optical fiber；By optical fiber fixed cell fixed optical fiber stage casing part, and it is placed in light
Optical fiber front section in fibre rotation fixed plate (8) keeps coplanar；Optical fiber one end is connect with light source, the other end and spectrometer or
Light power meter connects；Device controls the movement of each stepper motor by control unit, and then adjusts fibre-optical bending degree.
2. a kind of a wide range of fibre-optical bending controllable device according to claim 1, which is characterized in that fiber spinning is fixed
Optical fiber front section setting micro-displacement on plate adjusts unit, and trace regulation is carried out along fiber length.
3. a kind of a wide range of fibre-optical bending controllable device according to claim 2, which is characterized in that micro-displacement adjusts single
Member is fixed in fiber spinning fixed plate, and the mobile terminal that micro-displacement adjusts unit is connect with light source.
4. a kind of a wide range of fibre-optical bending controllable device according to claim 2 or 3, which is characterized in that described is micro-
It is micrometer caliper that displacement, which adjusts unit,.
5. a kind of a wide range of fibre-optical bending controllable device according to claim 1 or 2 or 3, which is characterized in that the light
Fine fixed cell includes fibre clip A (18), fibre clip B (14) and positioning plate (13)；Optical fiber stage casing part passes through fibre clip A respectively
(18) it is fixed in fiber spinning fixed plate (8) and is fixed on positioning plate (13) by fibre clip B (14).
6. a kind of a wide range of fibre-optical bending controllable device according to claim 4, which is characterized in that the optical fiber is fixed
Unit includes fibre clip A (18), fibre clip B (14) and positioning plate (13)；Optical fiber stage casing part is solid by fibre clip A (18) respectively
It is fixed on positioning plate (13) due in fiber spinning fixed plate (8) and by fibre clip B (14).
7. a kind of a wide range of fibre-optical bending controllable device according to claims 1 or 2 or 3 or 6, which is characterized in that institute
The stroke accuracy for stating screw slide is 0.1mm, and the precision of stepper motor Z is 0.18 degree of step angle.
8. a kind of a wide range of fibre-optical bending controllable device according to claim 4, which is characterized in that the screw slide
Stroke accuracy be 0.1mm, the precision of stepper motor Z is 0.18 degree of step angle.
9. a kind of a wide range of fibre-optical bending controllable device according to claim 5, which is characterized in that the screw slide
Stroke accuracy be 0.1mm, the precision of stepper motor Z is 0.18 degree of step angle.
10. a kind of a wide range of fibre-optical bending controllable device according to claims 1 or 2 or 3 or 6 or 8 or 9, feature
It is, described control unit includes step motor control plate and order transmitting terminal, by calculating the angle and length of fibre-optical bending,
Control stepper motor is precisely adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810316652.4A CN108534809B (en) | 2018-04-08 | 2018-04-08 | A kind of a wide range of fibre-optical bending controllable device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810316652.4A CN108534809B (en) | 2018-04-08 | 2018-04-08 | A kind of a wide range of fibre-optical bending controllable device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108534809A true CN108534809A (en) | 2018-09-14 |
| CN108534809B CN108534809B (en) | 2019-07-12 |
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| CN201810316652.4A Expired - Fee Related CN108534809B (en) | 2018-04-08 | 2018-04-08 | A kind of a wide range of fibre-optical bending controllable device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112985291A (en) * | 2019-12-12 | 2021-06-18 | 中国矿业大学 | Optical fiber curvature sensor calibration control equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5274226A (en) * | 1992-11-17 | 1993-12-28 | The Babcock & Wilcox Co. | Optical rotary microbend position sensors having a rotatable movable shaft |
| CN103261930A (en) * | 2010-12-20 | 2013-08-21 | 株式会社巴川制纸所 | Optical transmission medium bend working device and optical transmission medium bend working method |
| CN104506232A (en) * | 2014-12-15 | 2015-04-08 | 上海交通大学 | Band service optical fiber low-frequency modulation generation device on basis of macrobend loss |
| CN106053030A (en) * | 2016-08-05 | 2016-10-26 | 西安理工大学 | Electric control test device used for fiber bending loss research |
-
2018
- 2018-04-08 CN CN201810316652.4A patent/CN108534809B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5274226A (en) * | 1992-11-17 | 1993-12-28 | The Babcock & Wilcox Co. | Optical rotary microbend position sensors having a rotatable movable shaft |
| CN103261930A (en) * | 2010-12-20 | 2013-08-21 | 株式会社巴川制纸所 | Optical transmission medium bend working device and optical transmission medium bend working method |
| CN104506232A (en) * | 2014-12-15 | 2015-04-08 | 上海交通大学 | Band service optical fiber low-frequency modulation generation device on basis of macrobend loss |
| CN106053030A (en) * | 2016-08-05 | 2016-10-26 | 西安理工大学 | Electric control test device used for fiber bending loss research |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112985291A (en) * | 2019-12-12 | 2021-06-18 | 中国矿业大学 | Optical fiber curvature sensor calibration control equipment |
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