CN109160482A - Ion strain transducer and the preparation method and application thereof - Google Patents
Ion strain transducer and the preparation method and application thereof Download PDFInfo
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- CN109160482A CN109160482A CN201811081940.2A CN201811081940A CN109160482A CN 109160482 A CN109160482 A CN 109160482A CN 201811081940 A CN201811081940 A CN 201811081940A CN 109160482 A CN109160482 A CN 109160482A
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- strain transducer
- ion
- sulfonic acid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
- B81B3/00—Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes
- B81B3/0035—Constitution or structural means for controlling the movement of the flexible or deformable elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
- B81B3/00—Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes
- B81B3/0018—Structures acting upon the moving or flexible element for transforming energy into mechanical movement or vice versa, i.e. actuators, sensors, generators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
- B81B3/00—Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes
- B81B3/0035—Constitution or structural means for controlling the movement of the flexible or deformable elements
- B81B3/0054—For holding or placing an element in a given position
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- Microelectronics & Electronic Packaging (AREA)
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The invention discloses a kind of ion strain transducers and the preparation method and application thereof, the ion strain transducer includes perfluorinated sulfonic acid middle layer, the interface transition layer set on perfluorinated sulfonic acid middle layer two sides and the surface electrode layer on the outside of interface transition layer, the interface transition layer is accumulated as ionic transport passages, the transducing signal of the ion strain transducer derived from hydrionic anisotropy transmission is hydrated in deformation process inside perfluorinated sulfonic acid middle layer.The present invention innovatively adopts ion strain transducer and reads mechanics strain information, nano-electrode material is combined with polyelectrolyte material, construct the ion transport channel of quick response, overcome the critical issues such as flexible conformability is poor, accuracy is low, it realizes complex multi-dimensional degree orientation recognition and the highly sensitive perceptional function of small-signal, has the characteristics that low-power consumption, high-resolution, high stable, high spatial responsiveness.
Description
Technical field
The present invention relates to sensor and its applied technical fields, more particularly to a kind of ion strain transducer and its preparation
Method and application.
Background technique
It is the intelligence wearing such as portable medical and human-computer interaction with the rapid development of intellectual material and flexible electronic
Using opening completely new road.
Human hands activity can reflect the active state that external environment variation carries out at any time with the mankind, have complicated, more
The distinguishing features such as dimension, variability.It can be the movable various dimensions inspection of reading, sign language of braille information to the movable detection of hand
Survey, the session establishment of human-computer interaction etc. provide important reference value.
Being applied at present in the sensor of physical activity detection is mostly conventional piezoelectric, the membranaceous senser element of pressure drag, and there are sensitive
Spend the problems such as low and conformal integrated difficulty is big.Therefore, how to develop highly sensitive, high frequency sound, low sluggish, high spatial resolution intelligence
Energy electronic product is a significant challenge of wearable field face.
Therefore, in view of the above technical problems, it is necessary to which a kind of ion strain transducer and the preparation method and application thereof is provided.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of ion strain transducer and the preparation method and application thereof, with
Overcome the problems such as sensitivity of the existing technology is low, conformal integrated difficulty is big.
To achieve the goals above, the technical solution that one embodiment of the invention provides is as follows:
A kind of ion strain transducer, the ion strain transducer include perfluorinated sulfonic acid middle layer, are set to perfluorinated sulfonic acid
The interface transition layer of middle layer two sides and the surface electrode layer on the outside of interface transition layer, the interface transition layer be used as from
Sub- migrating channels, the transducing signal of the ion strain transducer is derived from perfluorinated sulfonic acid middle layer inside hydronium(ion) in deformation process
The anisotropy of ion transmits accumulation.
As a further improvement of the present invention, the material of perfluorinated sulfonic acid middle layer and interface transition layer is Nafion-117
Film, the thickness range of perfluorinated sulfonic acid middle layer are 160~200 microns, and the range of interface transition layer is 1~100 nanometer.
As a further improvement of the present invention, the surface electrode layer material is selected from gold nano grain, silver nano-grain, more
One of hole graphene or carbon nanotube are a variety of, and thickness range is 300~800 nanometers.
Another embodiment of the present invention provides technical solution it is as follows:
A kind of preparation method of ion strain transducer, the preparation method include:
S1, perfluorinated sulfonic acid middle layer is provided；
S2, interface transition layer is formed in the two sides of perfluorinated sulfonic acid middle layer；
S3, surface electrode layer is formed in the outside of interface transition layer.
As a further improvement of the present invention, the step S1 specifically:
Nafion-117 film is provided；Or,
By liquid phase film casting method, macromolecule and ionic liquid are dissolved in formation homogeneous solution in organic solvent and drying obtains
Perfluorinated sulfonic acid middle layer.
As a further improvement of the present invention, the step S2 specifically:
It is roughened perfluorinated sulfonic acid middle layer by plasma etching or polishing method；
Boundary is formed in perfluorinated sulfonic acid middle layer two sides by solution dipping method, hot pressing film casting method or high vacuum magnetron sputtering method
Face transition zone.
As a further improvement of the present invention, the step S3 specifically:
By circulation impregnation-reduction method, superhigh vacuum magnetron sputtering method or vacuum filtration method in the outside of interface transition layer
Form surface electrode layer.
The technical solution that yet another embodiment of the invention provides is as follows:
A kind of application of ion strain transducer, the ion strain transducer are applied in Intelligent glove, the intelligence
If gloves include glove bulk, the dry ion strain transducer being fixed on glove bulk and electrical with ion strain transducer
The flexible signal acquisition module of connection, the ion strain transducer are above-mentioned ion strain transducer, the flexible signal
Acquisition module includes:
Microcontroller；
Signal conditioning module is connected with microcontroller, carries out preposition place for the flexible signal to ion strain transducer
Reason；
A/D conversion module, is connected with microcontroller, carries out the conversion of analog signal-digital signal for flexible signal；
Bluetooth communication module is connected with microcontroller, for realizing the wireless data communication with outside；
Power management module, for providing stable pure power supply.
As a further improvement of the present invention, the flexible signal acquisition module includes:
Microcontroller, the microcontroller are ARM embedded microcontroller S3C4510B；
Signal conditioning module, including operational amplifier, power frequency and double frequency wave trap and low-pass filter, the operation amplifier
Device is with ultra-low noise amplifier AD745, and the power frequency and double frequency wave trap are integrated chip LM9F0, the low-pass filtering
Device is MAX7410 chip；
A/D conversion module, including interior 12 Approach by inchmeal cake core AD574 for having ternary output buffer circuit；
Bluetooth communication module, including BlueCore2-external chip；
Power management module, including the ADR4525 chip and voltage regulator chip AMS-1117 as reference voltage source.
As a further improvement of the present invention, the ion strain transducer is fixed on the Fingers abdomen on glove bulk
One or more in position, joint part and wrist, the flexible signal acquisition module is fixed on the back of glove bulk,
The surface electrode layer of ion strain transducer two sides is electrically connected with the flexible signal acquisition module respectively.
The beneficial effects of the present invention are:
The present invention innovatively adopts ion strain transducer and reads mechanics strain information, by nano-electrode material and poly- electrolysis
Material combines, and by constructing the ion transport channel of quick response, there is passive detection, intelligent translation, complex shape to get higher
The characteristics such as stability；
By ion strain transducer in conjunction with flexible signal acquisition module, flexible conformability is poor, accuracy is low etc. is overcome
Critical issue realizes complex multi-dimensional degree orientation recognition and the highly sensitive perceptional function of small-signal, has low-power consumption, high-resolution, height
The features such as stabilization, high spatial responsiveness, in the movable identification of complex configuration sign language, the reading of fine braille and Intelligent robotic manipulator
The fields such as long-range control are with important application prospects.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The some embodiments recorded in invention, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of intermediate ion strain transducer of the present invention；
Fig. 2 is the flow diagram of intermediate ion strain transducer preparation method of the present invention；
Fig. 3 a, 3b are the structural schematic diagram of Intelligent glove inner side and outer side in the present invention；
Fig. 4 is the module diagram of flexible signal acquisition module in the present invention；
Fig. 5 a is the corresponding diagram of letter and braille in the embodiment of the present invention 1；
Fig. 5 b is the sensor response signal variation diagram of braille identification in the embodiment of the present invention 1；
Fig. 6 is the sensor response signal variation diagram of Sign Language Recognition in the embodiment of the present invention 2；
Fig. 7 a is the linear fit strained between bending angle and response voltage signal in the embodiment of the present invention 3；
Fig. 7 b is the signal intensity figure of 3 medium-long range of embodiment of the present invention control.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work, all should belong to protection of the present invention
Range.
Join shown in Fig. 1, the invention discloses a kind of ion strain transducer, including perfluorinated sulfonic acid middle layer 11, be set to it is complete
The interface transition layer (not shown) and the surface electrode layer 12 on the outside of interface transition layer of fluosulfonic acid middle layer two sides, interface
Transition zone is as ionic transport passages, and the transducing signal of ion strain transducer is derived from perfluorinated sulfonic acid middle layer 11 in deformation process
The anisotropy of internal hydrogen ion 111 transmits accumulation.
Preferably, 11 material of perfluorinated sulfonic acid middle layer is Nafion-117 film, and thickness range is 160~200 microns.
Preferably, the material of interface transition layer is identical with the material of perfluorinated sulfonic acid middle layer, and thickness range is received for 1~100
Rice.
Preferably, 12 material of surface electrode layer is selected from gold nano grain, silver nano-grain, porous graphene or carbon nanotube
Deng one of or it is a variety of, thickness range be 300~800 nanometers.
Join shown in Fig. 2, the invention also discloses a kind of preparation methods of ion strain transducer, comprising:
S1, perfluorinated sulfonic acid middle layer is provided；
S2, interface transition layer is formed in the two sides of perfluorinated sulfonic acid middle layer；
S3, surface electrode layer is formed in the outside of interface transition layer.
Preferably, step S1 specifically:
Nafion-117 film is provided；Or,
By liquid phase film casting method, macromolecule and ionic liquid are dissolved in organic solvent and form homogeneous solution, and injects load
Perfluorinated sulfonic acid middle layer is obtained after slide drying.
Preferably, step S2 specifically:
It is roughened perfluorinated sulfonic acid middle layer by plasma etching or polishing method；
Boundary is formed in perfluorinated sulfonic acid middle layer two sides by solution dipping method, hot pressing film casting method or high vacuum magnetron sputtering method
Face transition zone, so that effective ionic transport passages are formed, so that electrode particle infiltration is intervened and formed.
Preferably, step S3 specifically:
By circulation impregnation-reduction method, superhigh vacuum magnetron sputtering method or vacuum filtration method in the outside of interface transition layer
Form surface electrode layer.
In a specific embodiment of the invention, ion strain transducer preparation method the specific process is as follows:
1. polyelectrolyte material pre-processes: the one of suitable size under being cut from commercial polyelectrolyte Nafion-117 film
Block film uses deionized water, 5%H respectively2O2Solution and 0.5mol/L H2SO4Wash cycles 3 times in solution, each 10min,
It is intended to remove various organic impurities, organic impurities and inorganic metal cation that film surface may have.
2. prepared by interface transition layer: using plasma etching method or hand sand method carry out roughing in surface, it is therefore an objective to mention
The roughness at high interface promotes the sensing capabilities of sensing material.It is splashed by solution dipping method, hot pressing film casting method or high vacuum magnetic control
Method is penetrated, forms uniform, interface transition layer of the thickness within 100 nanometers in pretreated polyelectrolyte layer surface.
3. prepared by surface electrode layer: by circulatory maceration, vacuum filtration method or high vacuum magnetron sputtering method in interface mistake
It crosses layer surface and forms 300-800 nano thickness, high conductive surface electrode layer.
4. encapsulating and integrated: being connected a wire to using conductive silver paste heating cure mode by the thin of above-mentioned preparation step
The upper and lower surface of membrane module, and using Parylene sealed in unit to the thin-film device surface encapsulation PDMS Jing Guo above-mentioned preparation step
Thin layer.
Join shown in Fig. 3 a, 3b, the invention also discloses a kind of application of ion strain transducer, the ion strain transducers
Applied in Intelligent glove, if Intelligent glove includes glove bulk 30, the dry ion strain transducer being fixed on glove bulk
10 and with ion strain transducer be electrically connected flexible signal acquisition module 20, ion strain transducer be above-mentioned ion
Strain transducer.
8 ion strain transducers, certainly, the number of ion strain transducer are equipped on Intelligent glove in Fig. 3 a, 3b altogether
Amount and fixed position can be designed as needed.
As shown in connection with fig. 4, the flexible signal acquisition module in the present invention includes:
Microcontroller 21；
Signal conditioning module 22, is connected with microcontroller, carries out for the flexible signal to ion strain transducer preposition
Processing；
A/D conversion module 23, is connected with microcontroller, carries out the conversion of analog signal-digital signal for flexible signal；
Bluetooth communication module 24, is connected with microcontroller, for realizing the wireless data communication with outside；
Power management module 25, for providing stable pure power supply.
Preferably:
Microcontroller 21 is ARM embedded microcontroller S3C4510B；
Signal conditioning module 22 includes operational amplifier, power frequency and double frequency wave trap and low-pass filter, operational amplifier
For with ultra-low noise amplifier AD745, power frequency and double frequency wave trap are integrated chip LM9F0, low-pass filter MAX7410
Chip；
A/D conversion module 23 includes interior 12 Approach by inchmeal cake core AD574 for having ternary output buffer circuit；
Bluetooth communication module 24 includes BlueCore2-external chip；
Power management module 25 includes the ADR4525 chip and voltage regulator chip AMS-1117 as reference voltage source.
Ion strain transducer 10 in the present invention is fixed on finger pulp loss position, joint part and hand on glove bulk
One or more in wrist position, flexible signal acquisition module 20 is fixed on the back of glove bulk, ion strain transducer 10
The surface electrode layer of two sides is electrically connected with flexible signal acquisition module 20 respectively.
Wherein, ion strain transducer is electrically connected with flexible signal acquisition module by Du Pont's conducting wire.Ion strain passes
Sensor is fixed on glove bulk surface by commercial flexible silica gel insulative glue.Flexible signal acquisition module is integrated in circuit board
On, the through-hole around circuit board is sewed at glove bulk back using insulative yarn, and be aided with commercial flexible silica gel insulating cement
Hydropexis is in glove bulk surface.
By the design of bluetooth communication module 24, can be realized Intelligent glove and mobile terminal (such as APP application program)
Wireless data communication, communication process include:
1) using the wireless telecommunications between the creation of mobile terminal Bluetooth function and flexible signal acquisition module, its transmission is received
Binary data；
2) binary data based on the received, draws out sensor response signal modified-image, to reflect braille site
Information or human body active state realize the functions such as effective identification of sign language and braille.
Present invention can apply to Intelligent braille identification gloves, intelligent Sign Language Recognition gloves and intelligent remotes to control gloves etc.,
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment 1:
In the present embodiment by ion strain transducer and application its Intelligent braille identification gloves for be illustrated.
Ion strain transducer carries out roughening treatment to polyelectrolyte membrane using 1200 mesh sand paper, is then located in advance
Reason.Then electrode is prepared by recycling immersion reduction method.
It is specific the preparation method comprises the following steps:
It is immersed in [Au (Phen) Cl2] in Cl solution, dipping takes out afterwards for 24 hours, is rinsed with deionized water；
It is subsequently placed into the beaker for filling deionized water and is put into 60 DEG C of water-bath, then gradually instilled into beaker
The Na that mass fraction is 5%2SO3Solution completes reduction process；
With dilute H of 75 DEG C of 0.5mol/L2SO4It is cleaned in solution and deionized water, for removing in dipping/reduction process
The Na+ ion that may be introduced；
The colorimetric sensor films folder that preparation is completed is put down and is fixed among two panels glass slide, heats 2 under conditions of 140 DEG C
Hour, it is intended to eliminate the internal stress that the links of preparation process are introduced to colorimetric sensor films；
Then the upper and lower surface of sensor is connected a wire to using conductive silver paste heating cure mode, and utilizes Parylene
Sealed in unit is to thin-film device surface encapsulation PDMS thin layer.
The sensor that preparation is completed finally is pasted on to using flexible silica gel glue finger-joint back and the wrist of gloves
Position.
Flexible signal acquisition module in the present embodiment specifically includes that microcontroller, signal conditioning module, A/D modulus of conversion
Block, bluetooth communication module and power management module.
Signal conditioning module includes: operational amplifier, power frequency and double frequency wave trap and low-pass filter, realizes and believes sensing
Number preposition processing；Operational amplifier, which is selected, has ultra-low noise amplifier AD745, and power frequency and double frequency wave trap select integrated core
Piece LM9F0 is core devices, and low-pass filter selects MAX7410 chip.
A/D conversion chip A/D conversion chip selects the Approach by inchmeal cake core for having ternary output buffer circuit in 12
AD574 realizes the conversion of analog signal-digital signal by the control of ARM embedded microcontroller S3C4510B.
Bluetooth communication chip selects BlueCore2-external chip, passes through ARM embedded microcontroller S3C4510B
Control, realize and the wireless data communication of mobile terminal.
Power management chip selects ADR4525 chip as reference voltage source, is jointly with voltage regulator chip AMS-1117
Circuit with stable pure power supply.
Mobile terminal utilizes Bluetooth receiving function, creates the wireless telecommunications between mobile terminal and flexible signal acquisition module.When
After dressing the Intelligent braille identification gloves in the present embodiment, different braille sites is touched, different data will be received, is drawn
Sensor response signal modified-image out.
Join the corresponding diagram that Fig. 5 a is letter and braille in the present embodiment, Fig. 5 b is that sensor response signal becomes in the present embodiment
Change figure, passes through 3 ion strain transducers in the present embodiment in the response signal of 2 moment (5s and 15s), after recognizing signal
It is compared again with Fig. 5 a, the identification of braille can be realized, the result identified is respectively N, A, N, O.
Embodiment 2:
It is illustrated by taking ion strain transducer and application its intelligent Sign Language Recognition gloves as an example in the present embodiment.
Surface electrode layer is prepared using vacuum filtration method in ion strain transducer.
It is specific the preparation method comprises the following steps:
4.5g TPU is weighed, 0.9g EMITFSI is dissolved in 30mL DMAC, and magnetic agitation obtains uniform dispersion for 24 hours, takes
3ml uniform dispersion is injected on sheet glass, and drying obtains perfluorinated sulfonic acid middle layer on 60 DEG C of heating platforms；
It weighs 3mg silver nanowires to be dispersed in water, it is standby for the porous graphene of 1:0 and carbon control then to weigh molar ratio
At NMP dispersion liquid, the concentration of porous graphene is 1.3mg/mL, ice-bath ultrasonic 30min；
By in silver nanowires and porous graphene/carbon tube layer layer by layer deposition to PVDF filter paper, then in 40 DEG C of heating platforms
Upper drying obtains the surface electrode layer of multilayered structure；
It is using hot pressing film casting method that perfluorinated sulfonic acid perfluorinated sulfonic acid middle layer and surface electrode layer is compound, and form interfaces transition
Layer.
Hot pressing film casting method specifically: two surface electrodes are placed on the hot pressing at 100 DEG C of perfluorinated sulfonic acid middle layer two sides
Molding constitutes composite base ion strain sensing devices.
Finally finger of glove joint back and wrist are fixed on silicone insulation glue.
Flexible signal acquisition module in the present embodiment specifically includes that microcontroller, signal conditioning module, A/D modulus of conversion
Block, bluetooth communication module and power management module.
Signal conditioning module includes: operational amplifier, power frequency and double frequency wave trap and low-pass filter, realizes and believes sensing
Number preposition processing；Operational amplifier, which is selected, has ultra-low noise amplifier AD745, and power frequency and double frequency wave trap select integrated core
Piece LM9F0 is core devices, and low-pass filter selects MAX7410 chip.
A/D conversion chip A/D conversion chip selects the Approach by inchmeal cake core for having ternary output buffer circuit in 12
AD574 realizes the conversion of analog signal-digital signal by the control of ARM embedded microcontroller S3C4510B.
Bluetooth communication chip selects BlueCore2-external chip, passes through ARM embedded microcontroller S3C4510B
Control, realize and the wireless data communication of mobile terminal.
Power management chip selects ADR4525 chip as reference voltage source, is jointly with voltage regulator chip AMS-1117
Circuit with stable pure power supply.
Mobile terminal utilizes Bluetooth receiving function, creates the channel radio between mobile terminal and flexible small-signal acquisition module
News, receive the binary data of its transmission, and data based on the received, draw out sensor response signal modified-image, and according to
Reappear the connotation of different sign language movements and sign language manual expression accordingly.For establish between individuals with disabilities and healthy population without barrier
Communication is hindered to provide important foundation.
Ginseng Fig. 6 show the schematic diagram of Sign Language Recognition in the present embodiment, passes through 8 ion strain transducers in the present embodiment
Sign Language Recognition is carried out in the flexible signal at 3 moment, the result identified is respectively " I Love You " and " Hi, How You ".
Embodiment 3:
In the present embodiment by ion strain transducer and application its intelligent remote control gloves for be illustrated.
Using plasma etching method prepares interface transition layer in ion strain transducer.
It is specific the preparation method comprises the following steps:
Pretreated Nafion membrane is fixed on sample stage with High temperature-resistanadhesive adhesive tape, magnetron sputtering cavity is vacuumized, to
Cavity is passed through the argon gas that flow is 8sccm, anode current 40mA, plate voltage 300V, etch period 360s is arranged, to pre-embossed
Sample is etched after erosion 60s；
End to be etched overturns 180 ° of sample with mechanical handle, etches the another side of sample；
Surface electrode layer, specific practice are prepared using high vacuum magnetron sputtering method are as follows: argon gas flow velocity is adjusted to 30sccm, very
Pneumatics is emphasized to 1.0Pa, and the power 120W of magnetron sputtering is arranged, starts silver electrode layer after time parameter 32min, first preplating 2min
Preparation.
Sputtering terminates, and overturns 180 ° of sample with mechanical handle, completes the preparation of silver electrode layer in the another side of sample.
The upper and lower surface of sensor is finally connected a wire to using conductive silver paste heating cure mode, and utilizes Parylene
Then the sensor that preparation is completed is pasted on hand using flexible silica gel to thin-film device surface encapsulation PDMS thin layer by sealed in unit
Cover finger-joint and wrist.
Flexible signal acquisition module in the present embodiment specifically includes that microcontroller, signal conditioning module, A/D modulus of conversion
Block, bluetooth communication module and power management module.
Operation conditioning module includes: operational amplifier, power frequency and double frequency wave trap and low-pass filter, realizes and believes sensing
Number preposition processing；Operational amplifier, which is selected, has ultra-low noise amplifier AD745, and power frequency and double frequency wave trap select integrated core
Piece LM9F0 is core devices, and low-pass filter selects MAX7410 chip.
A/D conversion chip A/D conversion chip selects the Approach by inchmeal cake core for having ternary output buffer circuit in 12
AD574 realizes the conversion of analog signal-digital signal by the control of ARM embedded microcontroller S3C4510B.
Bluetooth communication chip selects BlueCore2-external chip, passes through ARM embedded microcontroller S3C4510B
Control, realize and the wireless data communication of mobile terminal.
Power management chip selects ADR4525 chip as reference voltage source, is jointly with voltage regulator chip AMS-1117
Circuit with stable pure power supply.
The blue tooth wireless communication of signal processing circuit and humanoid dextrous hand is established, human body is worn by the intelligence in the present embodiment
Long-range control gloves simultaneously are completed to grasp object motion, after flexible signal acquisition module handles the voltage signal from sensor, lead to
It crosses and establishes strain bending angle and respond the linear fit relationship between voltage signal, generate data command and remotely control apery
Dextrous Hand makes the same movement of high-precision in real time, realizes complex operations.Intelligent remote control gloves will be expected to that manpower is replaced to complete
Complicated, dangerous play.
Ginseng Fig. 7 a, which is shown in a specific embodiment, to be strained bending angle and responds the linear fit between voltage signal, is schemed
7b is the remote control signal variation diagram generated, is changed by the remote control signal of 5 ion strain transducers, be may be implemented
The same movement of high-precision.
As can be seen from the above technical solutions, the invention has the following beneficial effects:
The present invention innovatively adopts ion strain transducer and reads mechanics strain information, by nano-electrode material and poly- electrolysis
Material combines, and by constructing the ion transport channel of quick response, there is passive detection, intelligent translation, complex shape to get higher
The characteristics such as stability；
By ion strain transducer in conjunction with flexible signal acquisition module, flexible conformability is poor, accuracy is low etc. is overcome
Critical issue realizes complex multi-dimensional degree orientation recognition and the highly sensitive perceptional function of small-signal, has low-power consumption, high-resolution, height
The features such as stabilization, high spatial responsiveness, in the movable identification of complex configuration sign language, the reading of fine braille and Intelligent robotic manipulator
The fields such as long-range control are with important application prospects.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (10)
1. a kind of ion strain transducer, which is characterized in that the ion strain transducer includes perfluorinated sulfonic acid middle layer, is set to
The interface transition layer and the surface electrode layer on the outside of interface transition layer of perfluorinated sulfonic acid middle layer two sides, the interfaces transition
Layer is used as ionic transport passages, and the transducing signal of the ion strain transducer is in perfluorinated sulfonic acid middle layer in deformation process
The anisotropy of portion's hydrogen ion transmits accumulation.
2. ion strain transducer according to claim 1, which is characterized in that the perfluorinated sulfonic acid middle layer and interface mistake
The material for crossing layer is Nafion-117 film, and the thickness range of perfluorinated sulfonic acid middle layer is 160~200 microns, interface transition layer
Range be 1~100 nanometer.
3. ion strain transducer according to claim 1, which is characterized in that the surface electrode layer material is selected from Jenner
One of rice grain, silver nano-grain, porous graphene or carbon nanotube are a variety of, and thickness range is 300~800 nanometers.
4. a kind of preparation method of ion strain transducer, which is characterized in that the preparation method includes:
S1, perfluorinated sulfonic acid middle layer is provided；
S2, interface transition layer is formed in the two sides of perfluorinated sulfonic acid middle layer；
S3, surface electrode layer is formed in the outside of interface transition layer.
5. the preparation method according to claim 4, which is characterized in that the step S1 specifically:
Nafion-117 film is provided；Or,
By liquid phase film casting method, macromolecule and ionic liquid are dissolved in formation homogeneous solution in organic solvent and drying obtains perfluor
Sulfonic acid middle layer.
6. the preparation method according to claim 4, which is characterized in that the step S2 specifically:
It is roughened perfluorinated sulfonic acid middle layer by plasma etching or polishing method；
Interface mistake is formed in perfluorinated sulfonic acid middle layer two sides by solution dipping method, hot pressing film casting method or high vacuum magnetron sputtering method
Cross layer.
7. the preparation method according to claim 4, which is characterized in that the step S3 specifically:
It is formed by circulation impregnation-reduction method, superhigh vacuum magnetron sputtering method or vacuum filtration method in the outside of interface transition layer
Surface electrode layer.
8. a kind of application of ion strain transducer, the ion strain transducer is applied in Intelligent glove, which is characterized in that
If the Intelligent glove includes glove bulk, the dry ion strain transducer being fixed on glove bulk and strains biography with ion
The flexible signal acquisition module that sensor is electrically connected, the ion strain transducer are according to any one of claims 1 to 3
Ion strain transducer, the flexible signal acquisition module include:
Microcontroller；
Signal conditioning module is connected with microcontroller, carries out preposition processing for the flexible signal to ion strain transducer；
A/D conversion module, is connected with microcontroller, carries out the conversion of analog signal-digital signal for flexible signal；
Bluetooth communication module is connected with microcontroller, for realizing the wireless data communication with outside；
Power management module, for providing stable pure power supply.
9. application according to claim 8, which is characterized in that the flexible signal acquisition module includes:
Microcontroller, the microcontroller are ARM embedded microcontroller S3C4510B；
Signal conditioning module, including operational amplifier, power frequency and double frequency wave trap and low-pass filter, the operational amplifier are
With ultra-low noise amplifier AD745, the power frequency and double frequency wave trap are integrated chip LM9F0, and the low-pass filter is
MAX7410 chip；
A/D conversion module, including interior 12 Approach by inchmeal cake core AD574 for having ternary output buffer circuit；
Bluetooth communication module, including BlueCore2-external chip；
Power management module, including the ADR4525 chip and voltage regulator chip AMS-1117 as reference voltage source.
10. application according to claim 8, which is characterized in that the ion strain transducer is fixed on glove bulk
Finger pulp loss position, one or more in joint part and wrist, the flexible signal acquisition module is fixed on hand
The back of ontology is covered, the surface electrode layer of ion strain transducer two sides is electrical with the flexible signal acquisition module respectively
Connection.
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