CN107242856A - Flexible sensor based on non-crystaline amorphous metal fabric - Google Patents
Flexible sensor based on non-crystaline amorphous metal fabric Download PDFInfo
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- CN107242856A CN107242856A CN201710423153.0A CN201710423153A CN107242856A CN 107242856 A CN107242856 A CN 107242856A CN 201710423153 A CN201710423153 A CN 201710423153A CN 107242856 A CN107242856 A CN 107242856A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
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Abstract
Include sensing layer and electrode layer the invention discloses a kind of flexible sensor, the electrode layer includes at least two located at the electrode that sensing layer is interior and is drawn from inside to outside by sensing layer；The sensing layer is the non-crystaline amorphous metal fabric that amorphous alloy wire is made with dress ornament of line blending.Flexible sensor based on non-crystaline amorphous metal fabric in the present invention, the sensor thickness is small, and more preferably, wearing comfort is high, be unlikely to deform for performance normal flexible sensor more of the prior art, and electromagnetic interference and electrostatic interference can be effective against, it can effectively replace the flexible sensor in wearable device.
Description
Technical field
The invention belongs to new material technology field, and in particular to a kind of flexible sensor based on non-crystaline amorphous metal fabric.
Background technology
Wearable electronic is quickly grown in recent years, be increasingly becoming electronic product of future generation research and development it is important become
Sensor in gesture, wearable device is then to constitute the significant components in wearable electronic.Textile type sensor is claimed again
For flexible sensor, this as a kind of form of fabric, can as dress ornament a part, due to good snugness of fit
It is counted as the trend of wearable industry future development.Flexible sensor meets wearable device must possess one in use
Determine the requirement of mechanical flexibility, stickiness and higher tensile strength, therefore have very in many emerging wearable devices
Wide application prospect.
Flexible sensor of the prior art is there is a problem in that limit its application：
1st, sandwich structure is used existing flexible sensor, intermediate layer is that fabric sensing element is made using electrically conductive material more
Part, is such as made using conductive fiber, carbon fiber, and intermediate layer both sides side is set to sealer, and opposite side is then set to and people
The accessible barrier layer of body.Due to using three-decker, the sensor is often thicker, influences the level of comfort of dress.And
Working sensor state and the structure of intermediate layer conductive material are closely bound up, once conductive material property and structure are using process
Middle generation minor variations, sensor can then produce the risk of failure.
2nd, it is pursuit snugness of fit, using flexible preferably fabric more than the barrier layer and substrate on many flexible sensors
Layer, such fabric layer easily deforms upon to influence the change of sensor overall electrical resistance in use.
3rd, existing flexible sensor is because of the limitation of the material selected by it, is vulnerable to electromagnetic wave and electrostatic in use
Interference, influences the use state of sensor.
The content of the invention
In order to solve the deficiencies in the prior art, the invention provides a kind of flexible sensing based on non-crystaline amorphous metal fabric
Device, the sensor thickness is small, and more preferably, wearing comfort is high, be unlikely to deform for performance normal flexible sensor more of the prior art,
And electromagnetic interference and electrostatic interference can be effective against, it can effectively replace the flexible sensor in wearable device.
The technique effect of the invention to be reached is realized by following scheme：
A kind of flexible sensor provided in the present invention includes sensing layer and electrode layer, and the electrode layer is located at including at least two
The electrode drawn by sensing layer in sensing layer and from inside to outside；The sensing layer is what amorphous alloy wire was made with dress ornament of line blending
Non-crystaline amorphous metal fabric.
Further, the flexible sensor also includes the protective layer being located on sensing layer and located at sensing layer bottom
Flexible layer.The dress ornament is natural fiber line, staple fibre line or synthetic line with line raw material；The protective layer is flexibility
High polymer layer；The flexible layer is tissue layer.
Further, the flexible layer is the non-crystaline amorphous metal fabric different from sensing layer.
Further, the preparation method of the non-crystaline amorphous metal fabric is to use single beam or multi beam amorphous alloy wire with dress ornament
Line is combined, and is then weaved.
Further, the amorphous alloy wire and dress ornament line are multiple knitted structure, and sensing layer thickness is more than 5 μm.
The amorphous alloy wire line footpath is 0.5-50 μm, and its tensile strength is 1000MPa-3500MPa, and elastic limit is 1.2-2.8%,
Nickel burst size is 0mg/cm2In/week, surface is corrosion-free after 240-480h neutral salt spray tests.The amorphous alloy wire and dress ornament
With line with mass ratio 1:（5-30）Blending is formed, and the diameter ratio of the amorphous alloy wire and dress ornament line is 1:5-20.
Further, non-crystaline amorphous metal raw molecule formula used in the amorphous alloy wire is CuaZrbTicAldNie, wherein a, b,
C, d, e represent the atomic molar percentage of correspondence alloying element, wherein a=20-35, b=25-45, c=5-20, d=3- respectively
10, e=10-20, a+b+c+d+e=100.
Further, the electrode is drawn by stickup, printing, physics cutting one way in which out of sensing layer, institute
It is one or more kinds of composites in copper foil, conductive fabric, enamel-covered wire, conducting resinl to state electrode material.
The present invention has advantages below：
1st, the flexible sensor in the present invention is based on non-crystaline amorphous metal fabric, and the sensor thickness is small, tensile resistance is high, with more
Wide applicability and more excellent cooperation assembling property.
2nd, the flexible sensor good biocompatibility in the present invention, comfort is not more preferably, and variable during with human body joint
The remote super flexible sensor of the prior art of shape, service life and reliability.
3rd, the flexible sensor good conductivity in the present invention, can be effective against electromagnetic interference and electrostatic interference.
Brief description of the drawings
Fig. 1 is the structural representation of flexible sensor in the present invention.
Embodiment
Below in conjunction with the accompanying drawings and embodiment the present invention will be described in detail.
The basic structure of flexible sensor in the present invention includes the sensing layer 301 in sensing layer and electrode layer, such as accompanying drawing 1
And electrode layer, electrode layer is the electrode 201 and 202 drawn from inside to outside in sensing layer and by sensing layer.Electricity in electrode layer
Number of poles is at least set to 2.Above-mentioned electrode is by pasting, printing, physics cutting one way in which is drawn out of sensing layer, electricity
One or more kinds of composites in pole materials'use copper foil, conductive fabric, enamel-covered wire, conducting resinl.
The non-crystaline amorphous metal fabric that sensing layer used in the present invention is made for amorphous alloy wire and dress ornament of line blending.This
Flexible sensor in invention is small, property stabilization by non-crystaline amorphous metal textile material tensility energy height, resistance in sensing layer
Characteristic, connecting wire or integrated wireless transmitting and receiving module in two end electrodes are directly used as flexible sensor or should
Sensor, which is packaged, is made flexible strain transducer, realizes that human body is closed available for being directly affixed on skin or being attached on finery
Save motion, pulse, micro- expression, breathing, generation or the wearable detection of audio frequency.
Non-crystaline amorphous metal fabric in the present invention can directly weave amorphous alloy wire with conventional articles of apparel with line, can also be by list
Beam or multi beam amorphous alloy wire are mutually combined with dress ornament with line, and complex yarn, Ran Houzai is made using stranded or other modes
The complex yarn and other dress ornaments are subjected to blending with line.
Such as accompanying drawing 1, the flexible sensor in the present invention may also include protective layer 101 on sensing layer and located at biography
Feel the flexible layer 401 of layer bottom, protective layer can be used for carrying out further protection to sensing layer, in view of non-crystaline amorphous metal fabric is in itself
With enough use intensities, protective layer is more to prevent external dust, dirty etc. stretch into influence in sensing layer and use.It is flexible
Layer can be met to comfortable by changing flexible layer material or structure as desired then as the intermediary of sensing layer and external contact
The demand of property or assembly performance.
In the present invention, dress ornament is not limited with line raw material, can select natural fiber line, staple fibre line or synthetic line
In one or more, protective layer raw material may be selected to be flexible macromolecule polymeric layer, and flexible layer may be selected to be tissue layer.
In actual use, due to amorphous alloy material in itself have good biocompatibility, therefore flexible layer be preferably set to
The different non-crystaline amorphous metal fabric of sensing layer, the i.e. setting relative to the sensing layer for more focusing on sensing capabilities and non-crystaline amorphous metal fabric
Selection, usage comfort more preferably non-crystaline amorphous metal fabric may be selected in flexible layer, and such as weaving manner is more suitable for pressing close to the non-of human body
Peritectic alloy fabric.
The preferred amorphous alloy wire of sensing layer is multiple knitted structure with dress ornament line, and sensing layer thickness is more than 5 μm.It is multiple
Knitted structure can form optimal induction structure, and the thickness that sensing layer must possess more than 5 μm can have excellent sensing work(
Energy.
The amorphous alloy wire line footpath being applicable in the present invention is 0.5-50 μm, and the too small intensity that is easily caused of line footpath is not enough, and line footpath
It is excessive, the increase of fabric hardness can be caused.Preferably, selected amorphous alloy wire optimal parameter is：Tensile strength is
1000MPa-3000MPa, elastic limit is 1.2-2.5%, and nickel burst size is 0mg/cm2In/week, tried through 240-480h neutral salt spray
Test rear surface corrosion-free.
Amorphous alloy wire raw material employed in the present invention are preferably zirconium-base amorphous alloy, cobalt base amorphous alloy, magnesium-based
One kind in non-crystaline amorphous metal, al based amorphous alloy, cu-based amorphous alloys, it is further preferred that amorphous alloy material molecular formula is
CuaZrbTicAldNie, wherein a, b, c, d, e represent the atomic molar percentage of correspondence alloying element, wherein a=20- respectively
35, b=25-45, c=5-20, d=3-10, e=10-20, a+b+c+d+e=100.The composition of above-mentioned amorphous alloy material and existing skill
Non-crystaline amorphous metal composition of the main element composition easily more than 50% is different in art, can regard as without significantly as the member of bulk composition
Element, under above-mentioned atomic molar percentage, has strong interaction force between each component, and a variety of components are common
With participating in, uniform plastic deformation, rather than brittle fracture are happens is that in loading process, the anti-of non-crystaline amorphous metal fabric is improved
Draw performance.
When amorphous alloy wire and dress ornament line are with mass ratio 1:（5-30）The non-crystaline amorphous metal fabric being made when blending is formed is made
For sensing layer best results, it is preferable that the diameter ratio of amorphous alloy wire and dress ornament line is 1:（5-20）In non-crystaline amorphous metal fabric
It is optimal during blending product, make efficiency highest during blending product.
The characteristic of flexible sensor in the present invention is further illustrated below by way of complete preparation process：
The preparation of the non-crystaline amorphous metal fabric of embodiment 1
Melting in non-crystaline amorphous metal raw material inert atmosphere or vacuum environment for Cu30Zr33Ti14Al5Ni18 will be constituted, treat original
After material fusing, refine 2 times, uniform non-crystaline amorphous metal foundry alloy rod is made using the method for die casting.Foundry alloy rod is placed in melting earthenware
In crucible, heating melt it, be filled with argon gas as protective gas, after it is completely melt start metal disk roller, then with
3000r/min speed is reeled off raw silk from cocoons, and the line footpath of the amorphous alloy wire of extraction is 5 μm.
Above-mentioned amorphous alloy wire test result is：Tensile strength is 2200MPa, and elastic limit is 2.1%, and nickel burst size is
0mg/cm2In/week, surface is corrosion-free after 480h neutral salt spray tests.By amorphous alloy wire and dress ornament silk thread with mass ratio 1:
14 blending, are made with multiple knitted structure, as the non-crystaline amorphous metal fabric that thickness is 15 μm, sensing layer.
The preparation of the flexible sensor of embodiment 2
Non-crystaline amorphous metal fabric in embodiment 1 is cut into required size, polymerize thing liquid in surface spraying flexible macromolecule thereon,
Heated in inert atmosphere, flexible macromolecule polymer is solidify to form protective layer, protective layer thickness is 3-8 μm.Flexible macromolecule
Polymer can select non-toxic organic silicon systems high molecular polymer, such as dimethyl silicone polymer.
Electrode selects copper foil electrode, is pasted in sensing layer and connected from interior extraction with wire by conducting resinl, so that real
Now to the reception of signal.
Flexible layer can select amorphous alloy wire with dress ornament silk thread with mass ratio 1:Plain weave structure made by 35 blending is non-
Peritectic alloy fabric, the fabric sofetening degree is as good as with common fabric, but possesses the incomparable durability of common fabric and resistance to
Deformation extent.Flexible layer and the sensing layer conventional fabric connected mode such as can be fitted by braiding, excusing from death are combined with each other.
The flexible sensor being made in above-described embodiment, which can be used directly or be packaged the sensor, is made flexibility
Strain transducer, realizes human body joint motion, pulse, micro- expression, exhales available for skin or be attached on finery is directly affixed on
Suction, generation or the wearable detection of audio frequency.The sensor thickness is small, performance normal flexible sensor more of the prior art
More preferably.Due to use the flexible sensor in the non-crystaline amorphous metal fabric of good biocompatibility, embodiment to human body skin without
Nonhazardous is stimulated, allergic or discomfort will not be caused, suitable long-time, which is worn, to be used.Amorphous alloy material is with more durable
Property, good stability the characteristics of, therefore after the flexible sensor Stability Analysis of Structures in the present embodiment, wearing also facilitate washing, can be achieved
Continuous dynamic monitoring prolonged to the important physiological parameter of human body.
It is last it should be noted that above example is only entered to the technical scheme that illustrates the embodiment of the present invention rather than to it
Row limitation, although the embodiment of the present invention is described in detail with reference to preferred embodiment, one of ordinary skill in the art
It should be understood that the technical scheme of the embodiment of the present invention can still be modified or equivalent substitution, and these are changed or waited
It can not also make the scope of amended technical scheme disengaging technical scheme of the embodiment of the present invention with replacing.
Claims (10)
1. a kind of flexible sensor, it is characterised in that：
The flexible sensor includes sensing layer and electrode layer, and the electrode layer includes at least two in sensing layer and by passing
The electrode that sense layer is drawn from inside to outside；
The sensing layer is the non-crystaline amorphous metal fabric that amorphous alloy wire is made with dress ornament of line blending.
2. flexible sensor as claimed in claim 1, it is characterised in that：Also include the protective layer on sensing layer and be located at
The flexible layer of sensing layer bottom.
3. flexible sensor as claimed in claim 2, it is characterised in that：The dress ornament is natural fiber line with line raw material, artificial
Single or synthetic line；The protective layer is flexible macromolecule polymeric layer；The flexible layer is tissue layer.
4. flexible sensor as claimed in claim 2, it is characterised in that：The flexible layer is the non-crystaline amorphous metal different from sensing layer
Fabric.
5. flexible sensor as claimed in claim 1, it is characterised in that：The preparation method of the non-crystaline amorphous metal fabric is by single beam
Or multi beam amorphous alloy wire is compound with line with dress ornament, is then weaved.
6. flexible sensor as claimed in claim 5, it is characterised in that：The amorphous alloy wire is multiple knitting with dress ornament line
Structure, and sensing layer thickness is more than 5 μm.
7. flexible sensor as claimed in claim 5, it is characterised in that：The amorphous alloy wire line footpath is 0.5-50 μm, and it resists
Tensile strength is 1000MPa-3500MPa, and elastic limit is 1.2-2.8%, and nickel burst size is 0mg/cm2/ week, through in 240-480h
Surface is corrosion-free after property salt spray test.
8. flexible sensor as claimed in claim 5, it is characterised in that：The amorphous alloy wire is with dress ornament line with mass ratio 1:
（5-30）Blending is formed, and the diameter ratio of the amorphous alloy wire and dress ornament line is 1:5-20.
9. flexible sensor as claimed in claim 5, it is characterised in that：Non-crystaline amorphous metal raw molecule used in the amorphous alloy wire
Formula is CuaZrbTicAldNie, wherein a, b, c, d, e represent the atomic molar percentage of correspondence alloying element respectively, wherein a=
20-35, b=25-45, c=5-20, d=3-10, e=10-20, a+b+c+d+e=100.
10. flexible sensor as claimed in claim 1, it is characterised in that：The electrode by paste, printing, physics cutting its
A kind of middle mode is drawn out of sensing layer, the electrode material be copper foil, conductive fabric, enamel-covered wire, conducting resinl in one kind or
A variety of composites.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108091417A (en) * | 2017-12-22 | 2018-05-29 | 歌尔股份有限公司 | Flexible conductive film, sound-producing device and wearable device |
| CN108267078A (en) * | 2018-03-18 | 2018-07-10 | 吉林大学 | A kind of flexible wearable resistance strain and preparation method thereof |
| CN108746331A (en) * | 2018-05-29 | 2018-11-06 | 江西省科学院应用物理研究所 | Non-crystaline amorphous metal braid over braid and its preparation method and application |
| WO2020155195A1 (en) * | 2019-02-02 | 2020-08-06 | 五邑大学 | Flexible temperature sensor |
| CN113959605A (en) * | 2021-10-19 | 2022-01-21 | 广州碳思科技有限公司 | Stress sensor and stress sensing device |
| CN114061434A (en) * | 2021-11-15 | 2022-02-18 | 浙江大学 | Structural health monitoring system and method for magnetic fiber composite material |
| CN115171655A (en) * | 2022-07-27 | 2022-10-11 | 厦门大学 | Self-powered deaf-mute speech recognition sensor and preparation method thereof |
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| CN108091417A (en) * | 2017-12-22 | 2018-05-29 | 歌尔股份有限公司 | Flexible conductive film, sound-producing device and wearable device |
| CN108091417B (en) * | 2017-12-22 | 2020-02-21 | 歌尔股份有限公司 | Flexible conductive film, sound generating device and wearable equipment |
| CN108267078A (en) * | 2018-03-18 | 2018-07-10 | 吉林大学 | A kind of flexible wearable resistance strain and preparation method thereof |
| CN108267078B (en) * | 2018-03-18 | 2020-01-14 | 吉林大学 | Flexible wearable resistance-type strain sensor and preparation method thereof |
| CN108746331A (en) * | 2018-05-29 | 2018-11-06 | 江西省科学院应用物理研究所 | Non-crystaline amorphous metal braid over braid and its preparation method and application |
| WO2020155195A1 (en) * | 2019-02-02 | 2020-08-06 | 五邑大学 | Flexible temperature sensor |
| US11313734B2 (en) | 2019-02-02 | 2022-04-26 | Wuyi University | Flexible temperature sensor |
| CN113959605A (en) * | 2021-10-19 | 2022-01-21 | 广州碳思科技有限公司 | Stress sensor and stress sensing device |
| CN114061434A (en) * | 2021-11-15 | 2022-02-18 | 浙江大学 | Structural health monitoring system and method for magnetic fiber composite material |
| CN115171655A (en) * | 2022-07-27 | 2022-10-11 | 厦门大学 | Self-powered deaf-mute speech recognition sensor and preparation method thereof |
| CN115171655B (en) * | 2022-07-27 | 2024-06-04 | 厦门大学 | Self-powered deaf-mute voice recognition sensor and preparation method thereof |
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