CN109405760A - Fibre optical sensor, deformation detecting device, detection method and data glove - Google Patents
Fibre optical sensor, deformation detecting device, detection method and data glove Download PDFInfo
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- CN109405760A CN109405760A CN201811355818.XA CN201811355818A CN109405760A CN 109405760 A CN109405760 A CN 109405760A CN 201811355818 A CN201811355818 A CN 201811355818A CN 109405760 A CN109405760 A CN 109405760A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 139
- 238000001514 detection method Methods 0.000 title claims abstract description 85
- 239000000835 fiber Substances 0.000 title claims abstract description 60
- 239000013307 optical fiber Substances 0.000 claims abstract description 154
- 238000005452 bending Methods 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 11
- 239000000741 silica gel Substances 0.000 claims description 5
- 229910002027 silica gel Inorganic materials 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000003247 decreasing effect Effects 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000013507 mapping Methods 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 230000002238 attenuated effect Effects 0.000 description 3
- 210000000811 metacarpophalangeal joint Anatomy 0.000 description 3
- 230000008447 perception Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- 238000013473 artificial intelligence Methods 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000013308 plastic optical fiber Substances 0.000 description 1
- 235000015096 spirit Nutrition 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000002759 woven fabric Substances 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
- G06F3/014—Hand-worn input/output arrangements, e.g. data gloves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Optical Transform (AREA)
Abstract
The present invention is suitable for light sensing the field of test technology, provides a kind of fibre optical sensor, deformation detecting device, detection method and data glove.The fibre optical sensor includes a flexible optical fibre, and flexible optical fibre includes the first flexible optical fibre portion and the second flexible optical fibre portion being in contact；Fibre optical sensor further includes a flexible wrap member, and flexible optical fibre is wrapped up and can drive flexible optical fibre deformation together by flexible wrap member.The present invention is by will be set as be in contact two sections on flexible optical fibre, when carrying out shape changing detection, flexible optical fibre is fixed on object with flexible wrap member, once flexible optical fibre carries out deformation with object, contact site can occur relative displacement and end face mismatch occurs, so that optical signal is decayed when the contact site couples, light intensity decreasing determines the deformation amplitude of object by the light intensity of the optical signal of detection output.Since fibre optical sensor realizes that, more resistant to bending, service life is also more permanent based on flexible optical fibre.
Description
Technical field
The invention belongs to light sensing the field of test technology more particularly to a kind of fibre optical sensor, deformation detecting device, detections
Method and data glove.
Background technique
The fields such as artificial intelligence, medical instrument are related to the detection of the deformation such as bending, stress, and there are many technologies for the detection of deformation
Means, wherein there is kind of detection means to realize based on optical fiber sensing technology.
Current fibre optical sensor generallys use silica fibre, such as with silica fibre sensing come acquisition angles information, but
Silica fibre has that not resistant to bending, service life is shorter.It is again relatively conventional with fiber bragg grating in silica fibre,
Target deformation parameter information generally is obtained by analyzing the bragg wavelength variation of optical signal, but subsequent need to pass through spectrometer
Or the equipment such as fiber Bragg grating (FBG) demodulator are demodulated, and there are the higher problem of production cost, the other volume of entire detection device
Larger, usage scenario is also limited.
Summary of the invention
The main purpose of the present invention is to provide a kind of fibre optical sensor, deformation detecting device, detection method and data hands
Set, it is intended to solve the problems, such as that fibre optical sensor is not resistant to bending in current deformation detecting device, service life is short.
To achieve the above object, in a first aspect, the embodiment of the present invention provides a kind of fibre optical sensor, including a flexible light
Fibre, the flexible optical fibre include the first flexible optical fibre portion and the second flexible optical fibre portion, the first end in first flexible optical fibre portion
It is in contact with the first end in second flexible optical fibre portion, the second end in first flexible optical fibre portion is as the flexible optical fibre
Optical signal receiving end, light signal output end of the second end in second flexible optical fibre portion as the flexible optical fibre；It is described
Fibre optical sensor further includes a flexible wrap member, and the flexible optical fibre is wrapped up and can drive the flexibility by the flexibility wrap member
Optical fiber deformation together.
Second aspect, the embodiment of the present invention also provide a kind of deformation detecting device, comprising: light source, for providing optical signal；
The optical signal receiving end of fibre optical sensor as described above, the fibre optical sensor is connect with the light source, for by described
Optical signal receiving end receives the optical signal from light source, and is exported the optical signal by the light signal output end；It is described
Flexible wrap member is fixed on object when detecting and drives the flexible optical fibre with object deformation, the optical signal
The intensity for the optical signal that output end is exported changes with the variation of the deformation amplitude of the flexible optical fibre；Optical signal detection list
Member is connect with the light signal output end, for receiving the optical signal of the fibre optical sensor output, and according to the light received
Signal generates detection data；The detection data carries the deformation amplitude information of the flexible optical fibre；Data processing unit, with
The optical signal detection unit connection, the deformation amplitude of object is determined according to the detection data of generation.
The third aspect, the embodiment of the present invention also provide a kind of deformation detecting method, and the deformation detecting method is applied to shape
Become detection device, the deformation detecting device includes fibre optical sensor as described above and optical signal detection unit；The optical fiber
Sensor receives the optical signal from light source by the optical signal receiving end, and passes through the light signal output end for the light
Signal is exported to the optical signal detection unit；The flexibility wrap member is fixed on object when detecting and drives described soft
Property optical fiber is with object deformation；The described method includes: obtain the optical signal detection unit based on the received optical signal and
The detection data of generation；The intensity of the optical signal changes, the detection with the variation of the deformation amplitude of the flexible optical fibre
Data carry the deformation amplitude information of the flexible optical fibre；The deformation amplitude of object is determined according to the detection data of generation.
Fourth aspect, the embodiment of the invention also provides a kind of data glove, including glove bodies structure and as described above
Deformation detecting device；The flexible wrap member of the deformation detecting device is fixed in the glove bodies structure and described in driving
Flexible optical fibre is with the glove bodies structure deformation.
The embodiment provided from above-mentioned several respects it is found that by the way that two sections will be set as on flexible optical fibre, that is, be in contact the
Flexible optical fibre is fixed on mesh with flexible wrap member when carrying out shape changing detection by one flexible optical fibre portion and the second flexible optical fibre portion
It marks on object, once flexible optical fibre carries out deformation, the contact site in the first flexible optical fibre portion and the second flexible optical fibre portion with object
Relative displacement can occur and end face mismatch occur, so that optical signal is decayed when the contact site couples, and then light intensity decreasing,
The deformation amplitude of object can be determined by the light intensity of the optical signal of detection output.Since fibre optical sensor is based on flexible light
Fibre is realized, therefore more resistant to bending, service life also can be more permanent.
Detailed description of the invention
Fig. 1 is the structure chart for the fibre optical sensor that first embodiment of the invention provides；
Fig. 2 is the structure chart for the flexible wrap member that first embodiment of the invention provides；
Fig. 3 A is the schematic shapes in the wavy optical signal transmission portion that second embodiment of the invention provides；
Fig. 3 B is the schematic shapes in the spiral optical signal transmission portion that second embodiment of the invention provides；
Fig. 3 C is the schematic shapes in the optical signal transmission portion for the U-shaped that second embodiment of the invention provides；
Fig. 4 is the structure principle chart for the deformation detecting device that third embodiment of the invention provides；
Fig. 5 is the flow chart for the deformation detecting method that fourth embodiment of the invention provides；
Fig. 6 is the data glove structural schematic diagram that fifth embodiment of the invention provides.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Fig. 1 is please referred to, the fibre optical sensor that first embodiment of the invention provides is based on flexible optical fibre realization on the whole, this is soft
Property optical fiber include the first flexible optical fibre portion 11 and the second flexible optical fibre portion 12, the first end 111 in the first flexible optical fibre portion 11 and the
The first end 121 in two flexible optical fibre portions 12 is in contact, and the second end 112 in the first flexible optical fibre portion 11 is believed as the light of flexible optical fibre
Number receiving end, light signal output end of the second end 122 in the second flexible optical fibre portion 12 as flexible optical fibre.
To make the shape of flexible optical fibre be able to maintain stabilization, so that sensing data is accurate, stablizes, in the outside of flexible optical fibre
Equipped with flexible wrap member 13, flexible optical fibre is wrapped up and drives flexible optical fibre deformation together by flexible wrap member 13.It is only needed when use
Flexible wrap member 13 is fixed on object to the deformation that can perceive object, the specially flexible drive first of wrap member 13 is soft
Property optical fiber portion 11 and the second flexible optical fibre portion 12 cause the second end 122 in the second flexible optical fibre portion 12 together with object deformation
The optical signal of output is decayed, and the deformation amplitude of object can be obtained by the optical signal of analysis output.
Optical signal is inputted from the second end 112 in the first flexible optical fibre portion 11, the first end 111 in the first flexible optical fibre portion 11
It is coupled into the second flexible optical fibre portion 12 with the contact site of the first end 121 in the second flexible optical fibre portion 12, then by the second flexibility
The second end 122 in optical fiber portion 12 exports.If there is deformation in the first flexible optical fibre portion 11 or the second flexible optical fibre portion 12, can be straight
Connecing influences optical signal in the coupling of above-mentioned contact site.
Flexible optical fibre has certain flexibility, can bear a degree of Bending Deformation, or stretch iso-stress deformation.?
Carry out shape changing detection when, flexible optical fibre is fixed on object with flexible wrap member 13, once flexible optical fibre with object into
The contact site in row deformation, the first flexible optical fibre portion 11 and the second flexible optical fibre portion 12 can occur relative displacement and end face mistake occurs
Match, so that optical signal is decayed when the contact site couples, and then light intensity decreasing, the optical signal of detection output can be passed through
Light intensity determine the deformation amplitude of object.Since fibre optical sensor is realized based on flexible optical fibre, more resistant to bending, use
Service life also can be more permanent.
Wherein, naked plastic optical fiber can be selected in flexible optical fibre, and silica gel material can be selected in flexible wrap member 13.
As shown in Fig. 2, flexible wrap member 13 further comprises flexible bottom 131 and flexible lid 132, flexible bottom 131
It is equipped with groove 1311, is installed with the flexible optical fibre in groove 1311, flexible lid 132 can be covered on flexible bottom 131.
The coverage mode of flexible lid 132 is specifically unlimited, can be buckle, can also bind, as long as can be combined into flexible bottom 131
One complete wrap member.
For example, can first be obtained using silica gel molding when flexible bottom 131 and flexible lid 132 are all made of silica gel material
Flexible bottom 131 with preset-groove 1311, flexible optical fibre is installed in groove 1311, then again in flexible bottom 131
On cover one layer of silica gel again and form flexible lid 132, finally obtain the flexible wrap member 13 of similar " sandwich " structure.This knot
Structure makes the shape of flexible optical fibre keep stablizing, and the optical signal for being conducive to detection is more acurrate, stable, the knot of entire fibre optical sensor
Structure is very simple, convenient for encapsulation.
Second embodiment of the invention also provides a kind of fibre optical sensor, this second embodiment can mutually be tied with first embodiment
It closes, fibre optical sensor disclosed by first embodiment on the basis of further provides the concrete shape of flexible optical fibre.
In the present embodiment, flexible optical fibre is curved shape.A, Fig. 3 B, Fig. 3 C referring to figure 3., flexible optical fibre specifically can spirits
Work is designed as various shapes, only need to be by integrally bending extent control in the critical point close to microbending loss.Such as it can be
Waveform shown in Fig. 3 A is also possible to spiral shape shown in Fig. 3 B, can also be U-shaped shown in Fig. 3 C.Different optical fiber tools
There is different microbending loss critical angles, it, will be right when the bending angle of optical fiber reaches itself corresponding microbending loss critical angle
Further be bent it is very sensitive, therefore can by the angle of each bending angle of flexible optical fibre control it is critical in the microbending loss
Near angle, for example, the microbending loss critical angle of optical fiber is θ, the angle of each bending angle of the optical fiber need to only be controlled on θ
Certain range down, the range can be according to particular condition in use flexible settings.
Flexible optical fibre, i.e. the first flexible optical fibre portion 11 and the second flexible optical fibre portion 12 specifically include fibre core and covering, fibre core
For the main thoroughfare for transmitting optical signal, the main function of covering is that optical signal is limited in fibre core by total reflection to transmit.Root
According to the microbending loss principle of optical fiber, light beam is initially transmitted with critical angle of propagation in inside of optical fibre, when flexible optical fibre has bending and surpasses
When crossing certain bending degree, angle of propagation can change, and result is exactly no longer to meet total internal reflection condition, segment beam quilt
Refraction is fallen, that is, leaks out fibre core, to generate microbending loss.The design of the bending degree of flexible optical fibre entirety can in the present embodiment
Make it in the critical point work close to microbending loss, can guarantee that second can be made once flexible optical fibre has deformation in this way
The optical signal that the second end 122 in flexible optical fibre portion 12 is exported is attenuated.
In second embodiment, by the way that curved shape will be set as on flexible optical fibre, make flexible optical fibre close to microbending loss
Critical point work, when carrying out shape changing detection, flexible optical fibre is fixed on object with flexible wrap member 13, can be passed through
The light intensity of the optical signal of output is detected to determine the deformation amplitude of object.Since curved flexible optical fibre is originally just close to micro-
The critical point of curved loss works, once deformation occurs for flexible optical fibre, the light that the second end 122 in the second flexible optical fibre portion 12 is exported
Signal is attenuated at once, therefore, in addition to other than optical signal coupling attenuation occurs for contact site when entire flexible optical fibre deformation, also
Meeting again due to microbending loss and decay, can be very sensitive to the perception of object deformation.
Third embodiment of the invention provides a kind of deformation detecting device, and referring to Fig. 4, which includes sequentially
Light source 41, fibre optical sensor 42, optical signal detection unit 43 and the data processing unit 44 of connection.Wherein, light source 41 is for mentioning
For optical signal, LED light realization, the optical fiber that fibre optical sensor 42 is provided using above-mentioned the first embodiment or the second embodiment can be used
Sensor.
The optical signal receiving end of fibre optical sensor 42 is connect with light source 41, is come from for being received by optical signal receiving end 11
The optical signal of light source 41, and exported the optical signal by light signal output end 112.Flexible wrap member 13 is fixed when detecting
In on object and the intensity of the optical signal that drives flexible optical fibre to be exported with object deformation, light signal output end 122
The deformation of flexible optical fibre and change.According to above description, flexible optical fibre works in the critical point close to microbending loss, once it is flexible
Optical fiber carries out deformation with object, and work originally will generate microbending loss optical attenuation in the flexible optical fibre of microbending loss critical point
And contact site occur optical signal coupling attenuation, the optical signal that the light signal output end 122 of flexible optical fibre is exported it is strong
It spends directly related to the deformation amplitude of flexible optical fibre.
Optical signal detection unit 43 is connect with light signal output end 12, the light letter exported for reception optical fiber sensor 42
Number, and detection data is generated according to the optical signal received.Optical signal detection unit 43 is mainly by the strong of the optical signal received
Degree information is converted to electric signal, which carries the deformation amplitude information of flexible optical fibre as the detection data generated,
It is equivalent to the deformation amplitude information for carrying object.
Data processing unit 44 is connect with optical signal detection unit 43, and the shape of object is determined according to the detection data of generation
Time-varying amplitude.
Specifically, data processing unit 44 is according to the corresponding relationship of preset detection data and deformation amplitude, determine described in
The deformation amplitude of object corresponding to detection data, wherein the corresponding relationship can be pre-set direct detection number
It is mapped to deformation amplitude B1 according to the mapping relations with deformation amplitude, such as detection data A1, detection data A2 is mapped to deformation width
B2 is spent, the form that can be mapping table exists, and the table look-at when receiving detection data of data processing unit 44 can determine
The deformation amplitude of object out.The corresponding relationship can also be a reduction formula, and data processing unit 44 is receiving detection number
According to when the deformation amplitude of object is calculated according to the reduction formula.
In 3rd embodiment, flexible optical fibre is fixed on when carrying out shape changing detection, by flexible optical fibre with flexible wrap member 13
On object, the deformation amplitude of object can be determined by the light intensity of the optical signal of detection output.Due to fibre optical sensor
It is realized based on flexible optical fibre, therefore more resistant to bending, service life also can be more permanent, and in addition to the optical signal coupling of contact site
It closes except decaying, flexible optical fibre is for the flexible optical fibre with curved shape, due to originally just close to the critical of microbending loss
Point work can also generate the microbending loss decaying of optical signal again, therefore can be sensitiveer to the perception of object deformation.And it is whole
A detection process electromagnetism interference, no cumulative errors.When flexible optical fibre and flexible wrap member 13 are using described in second embodiment
When " sandwich ", the structure of entire fibre optical sensor is very simple, convenient for encapsulation.
Fourth embodiment provides a kind of deformation detecting method, which is applied to deformation detecting device, institute
Stating deformation detecting device includes the fibre optical sensor and optical signal detection list as described in the first embodiment or the second embodiment above
Member；The fibre optical sensor receives the optical signal from light source by the optical signal receiving end, and defeated by the optical signal
Outlet exports the optical signal to the optical signal detection unit；The flexibility wrap member is fixed on object when detecting
And drive flexible optical fibre with object deformation.
Referring to Fig. 5, the deformation detecting method includes the following steps:
Step S501 obtains the optical signal detection unit optical signal and the detection data that generates based on the received；It is described
The intensity of optical signal changes with the variation of the deformation amplitude of the flexible optical fibre, and the detection data carries the flexible light
Fine deformation amplitude information.
According to first embodiment with the description of second embodiment, in addition in the first flexible optical fibre portion and the second flexible optical fibre portion
Contact site occur except optical signal coupling attenuation, when using curved shape, flexible optical fibre is in facing close to microbending loss
The work of boundary's point, once flexible optical fibre carries out deformation with object, work originally will in the flexible optical fibre of microbending loss critical point
Generate optical attenuation, the intensity for the optical signal that the light signal output end 12 of flexible optical fibre is exported directly with the deformation width of flexible optical fibre
Degree is related.The strength information of the optical signal received is mainly converted to electric signal by optical signal detection unit, the electric signal conduct
The detection data of generation carries the deformation amplitude information of flexible optical fibre, also corresponds to the deformation amplitude letter for carrying object
Breath.
Step S502 determines the deformation amplitude of object according to the detection data of generation.
Specifically, the detection data institute generated can be determined according to the corresponding relationship of preset detection data and deformation amplitude
The deformation amplitude of corresponding object, wherein the corresponding relationship can be pre-set direct detection data and deformation width
The mapping relations of degree, such as detection data A1 are mapped to deformation amplitude B1, and detection data A2 is mapped to deformation amplitude B2, can be
The form of mapping table exists, and the table look-at when receiving detection data of data processing unit 44 can determine that the shape of object
Time-varying amplitude.The corresponding relationship can also be a reduction formula, and data processing unit 44 is changed when receiving detection data according to this
Calculate the deformation amplitude that object is calculated in formula.
In fourth embodiment, since fibre optical sensor realizes that, more resistant to bending, service life also can based on flexible optical fibre
It is more permanent, and for curved flexible optical fibre originally just in the critical point work close to microbending loss, optical signal can be with soft
Property optical fiber deformation microbending loss decaying occurs, also coupling attenuation can occur in the contact site in both ends optical fiber portion, therefore to mesh
The perception for marking object deformation can be sensitiveer.And entire detection process electromagnetism interference, no cumulative errors.When flexible optical fibre with it is soft
Property wrap member 13 using when " sandwich ", the structure of entire fibre optical sensor is very simple described in second embodiment, convenient for envelope
Dress.
Fig. 6 shows the structure of the data glove of fifth embodiment of the invention offer, and referring to Fig. 6, which includes
Deformation detecting device 602 provided by glove bodies structure 601 and 3rd embodiment.Flexible wrap member 13 in fibre optical sensor
It is fixed in the glove bodies structure 601 as object and drives flexible optical fibre with object deformation.
Flexible wrap member 13 is fixed in glove bodies structure 601, can specifically be sewed flexible wrap member 13 in gloves
In main structure 601, the palmistry of the operator of glove bodies structure 601 and wearing data glove cooperates, and in the hand of operator
Refer to bending or during stretching, flexible optical fibre follow deformation with gloves main structure 601 1, due to contact site coupling and
Microbending loss, the optical signal that light signal output end 122 is exported can be attenuated.
Specifically, virtual reality hardware of the data glove as a kind of multi-mode, by measuring each finger of operator's finger
The location information of section effectively controls the virtual hand in the manipulator and virtual scene of robot as control instruction, is
Operator provides effective man-machine interaction mode.Wherein, data glove can measure the metacarpophalangeal joints of operator's finger or close between referring to
The location information in the joints such as section.Glove bodies structure 601 and the palmistry of operator cooperate, and are mounted on glove bodies structure 601
The fibre optical sensor of the joint of dorsal side is used to acquire the bending angle information in the joint of operator.Optionally, glove bodies
The material of structure 601 can be woven fabric material, so that glove bodies structure 601 has good flexibility and wearability, and be bonded
The finger of operator.In practical applications, the material of glove bodies structure 601 can be selected according to actual needs.
It is appreciated that for the bending angle information in the joint for acquiring each finger of operator, therefore data glove is
Glove bodies structure 601 is glove.Flexible wrap member 13 is mounted on the metacarpophalangeal joint in glove bodies structure 601, because
This, glove bodies structure 601 can be mitten, can also be not mitten.The fingers number of glove bodies structure 601 and behaviour
The fingers number of author can be identical, can not also be identical, and in practical applications, the fingers number of glove bodies structure 601 can be with
Actual demand and determine.
In the present embodiment, data glove is mainly used to acquire the bending angle information in the joint of operator, shape changing detection
The flexible optical fibre of device 602 can be bent with the metacarpophalangeal joints of operator, and the material of flexible optical fibre is soft, resist bending and production
It is at low cost, therefore the service life of data glove can be improved and reduce the production cost of data glove.And it is visited by optical signal
It surveys unit and receives the optical signal and the detection data and flexible optical fibre for generating detection data, and generating that light signal output end 12 is emitted
Bending degree it is related, the bending degree of flexible optical fibre is again related to the digital flexion angle information of operator, therefore subsequent leads to
The bending degree of finger can be obtained by crossing data processing unit, without using the equipment such as spectrometer or fiber Bragg grating (FBG) demodulator into
Row demodulation, to greatly reduce the production cost of data glove.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment
Point, reference can be made to the related descriptions of other embodiments.
In addition, fibre optical sensor provided by the above embodiment, deformation detecting device, deformation detecting method can singly not applied
In the detection of the digital flexion degree of data glove, electronic switch/stress mornitoring can also be applied to, medical instrument, artificial intelligence,
Robot is related to the technical field, such as anti-intrusion floor tile/carpet etc. of angle detection, heart rate/monitoring of blood pressure, robot motion
Angle measurement, human motion acquisition, Rehabilitation Assessment, etc..
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of fibre optical sensor, which is characterized in that including a flexible optical fibre, the flexible optical fibre includes the first flexible optical fibre portion
Connect with the first end in the second flexible optical fibre portion, first flexible optical fibre portion with the first end in second flexible optical fibre portion
Touching, optical signal receiving end of the second end in first flexible optical fibre portion as the flexible optical fibre, second flexible optical fibre
Light signal output end of the second end in portion as the flexible optical fibre；The fibre optical sensor further includes a flexible wrap member, institute
Flexible wrap member is stated to wrap up the flexible optical fibre and flexible optical fibre deformation together can be driven.
2. fibre optical sensor as described in claim 1, which is characterized in that the flexibility wrap member includes flexible bottom and flexibility
Lid；The flexible bottom is equipped with groove, and the flexible optical fibre is installed in the groove, and the flexibility lid is covered on institute
It states on flexible bottom.
3. fibre optical sensor as described in claim 1, which is characterized in that the flexible optical fibre is integrally in bending.
4. fibre optical sensor as claimed in claim 3, which is characterized in that the flexible optical fibre is integrally wavy, spiral shape
Or U-shaped.
5. such as the described in any item fibre optical sensors of Claims 1-4, which is characterized in that the flexible optical fibre is naked plastic light
It is fine；The flexibility wrap member is silica gel.
6. a kind of deformation detecting device characterized by comprising
Light source, for providing optical signal；
Such as fibre optical sensor described in any one of claim 1 to 5, the optical signal receiving end of the fibre optical sensor and the light
Source connection, for receiving the optical signal from light source by the optical signal receiving end, and will by the light signal output end
The optical signal output；The flexibility wrap member is fixed on object when detecting and drives the flexible optical fibre with object
Deformation together, the intensity of the optical signal that the light signal output end is exported with the variation of the deformation amplitude of the flexible optical fibre and
Variation；
Optical signal detection unit is connect with the light signal output end, for receiving the optical signal of the fibre optical sensor output,
And detection data is generated according to the optical signal received；The detection data carries the deformation amplitude letter of the flexible optical fibre
Breath；
Data processing unit connect with the optical signal detection unit, the deformation of object is determined according to the detection data of generation
Amplitude.
7. deformation detecting device as claimed in claim 6, which is characterized in that the data processing unit is further used for, root
According to the corresponding relationship of preset detection data and deformation amplitude, the deformation width of object corresponding to the detection data generated is determined
Degree.
8. a kind of deformation detecting method, which is characterized in that the deformation detecting method is applied to deformation detecting device, the deformation
Detection device includes such as fibre optical sensor described in any one of claim 1 to 5 and optical signal detection unit；The Fibre Optical Sensor
Device receives the optical signal from light source by the optical signal receiving end, and passes through the light signal output end for the optical signal
It exports to the optical signal detection unit；The flexibility wrap member is fixed on object when detecting and drives the flexible light
Fibre is with object deformation；
The described method includes:
Obtain the optical signal detection unit optical signal and the detection data that generates based on the received；The intensity of the optical signal with
The variation of the deformation amplitude of the flexible optical fibre and change, the detection data carry the flexible optical fibre deformation amplitude letter
Breath；
The deformation amplitude of object is determined according to the detection data of generation.
9. deformation detecting method as claimed in claim 8, which is characterized in that described to determine target according to the detection data of generation
The deformation amplitude of object, comprising:
According to the corresponding relationship of preset detection data and deformation amplitude, deformation width corresponding to the detection data generated is determined
Degree.
10. a kind of data glove, which is characterized in that shape changing detection including glove bodies structure and as claimed in claims 6 or 7
Device；The flexible wrap member of the deformation detecting device be fixed in the glove bodies structure and drive the flexible optical fibre with
The glove bodies structure deformation together.
Priority Applications (1)
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| CN112504135A (en) * | 2020-11-30 | 2021-03-16 | 深圳市科曼医疗设备有限公司 | Height detection device and detection method thereof |
| CN113584679A (en) * | 2021-08-10 | 2021-11-02 | 天津工业大学 | Flexible monitoring respiratory fabric based on optical fiber luminescence sensitization mechanism and preparation method thereof |
| CN117849057A (en) * | 2024-03-06 | 2024-04-09 | 中国电建集团西北勘测设计研究院有限公司 | Crack monitoring device of high-pressure gas storage warehouse concrete lining |
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| CN117849057A (en) * | 2024-03-06 | 2024-04-09 | 中国电建集团西北勘测设计研究院有限公司 | Crack monitoring device of high-pressure gas storage warehouse concrete lining |
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