CN208109300U - A kind of cross-linking strain gauge - Google Patents
A kind of cross-linking strain gauge Download PDFInfo
- Publication number
- CN208109300U CN208109300U CN201820638438.6U CN201820638438U CN208109300U CN 208109300 U CN208109300 U CN 208109300U CN 201820638438 U CN201820638438 U CN 201820638438U CN 208109300 U CN208109300 U CN 208109300U
- Authority
- CN
- China
- Prior art keywords
- strain gauge
- cross
- knot
- conductive fiber
- linking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model relates to a kind of cross-linking strain gauge, including two conductive fiber beams, every conductive fiber beam includes two sections of shrinkage parts and the fluff structure that is arranged between two sections of shrinkage parts；The fluff structure of two conductive fiber beams interts mutually and forms interspersed knot, and wherein one section of shrinkage part of every conductive fiber beam is electrically connected with external circuit respectively.The utility model has the advantages that capable of washing, not easily to fall off, anti motion interference, high resolution, high sensitivity and compatible with existing textile technology.
Description
Technical field
The utility model relates to sensor device technical fields, more particularly to a kind of cross-linking strain gauge.
Background technique
With the development of science and technology with the demand of people's pursuit good life, it is with the products such as iwatch and millet bracelet
The wearable electronic product represented starts to continue to bring out out, these products not only change our life style, also right
Our physical and mental health has carried out effective monitoring.And in wearable device, the phase of the most key flexibility stress sensor
Pass technology often rests in the industrially developed country such as the U.S., Japan and Germany.
Currently, photoelectric sensor is when in use, can because light interference caused by environment, the colour of skin of wearer, sweat with
And the factors such as fat thickness, to be easy to cause measurement error, still further aspect is that wearable product currently on the market is main
Such as bracelet, wrist-watch, glasses electronic product based on " wearing ", can not also be truly realized can be worn as clothes, washable electricity
Sub- product.Solve this problem key be develop with cloth can be compatible flexible electronic device.
It cannot wear weaker with signal to solve the problems, such as that traditional strain gauge can only be worn, researchers gradually focus on
Material modification is carried out on class textile material, it is intended to realize really highly sensitive " wearable device ".Yong Wei et al. then leads to
It crosses after polyurethane fibre surface is coated with a certain amount of silver nanowires, forms a kind of spy with stress sensing property
Kind fiber, when this fiber is stretched, resistance can generate corresponding variation.Similarly, the sensor there is also sensitivity not
The problem of foot, when being bent finger, corresponding resistance change rate is only 0.02%.In addition, device in practical applications there is also
Silver nanowires be easy to happen oxidation and be detached from the problem of.Shu Gong et al. is then opened in terms of base material and electrode structure two
Research work is opened up, first using paper as base material, then nanowires of gold is modified in substrate and the fiber filament in paper is carried out
Cladding processing, to solve the nonconducting problem of substrate.On the other hand, the paper base material after modification is covered in interdigital electrode,
And protect to form sandwich by polydimethylsiloxanefilm film, to improve its electrical stability and stable structure.By this
The prepared strain gauge come out of method has good pliability and electric conductivity, while depositing using the structure of interdigital electrode
So that the electric current under stress dramatically increases.And Liu Mengmeng et al. is then based in Shu Gong et al. work
Make further optimization and improve, base material is substituted for common textile cloth, cladding processing is carried out by carbon nanotube,
Cost can be effectively reduced and simplify preparation process.In terms of electrode, then using the method for spraying, gold is carried out to textile cloth
The cladding processing for belonging to nickel, forms the cloth interdigital electrode of nickel coated, finally similarly with the produced VHB adhesive plaster progress of 3M company
The assembling of sandwich structure, forms the strain gauge of cloth substrate.For paper base material, cloth substrate is with more excellent
Bending and tensile property, and be expected to it is compatible with existing distributing technique institute, and in the stress of the minimum detectable 60Pa of aspect of performance,
Highest can make 10 times of intensifying current initial current.
Although above-mentioned resistance-type strain gauge solves the problems, such as interfering vulnerable to objective factor for the sensor of photo-electric,
Flexible deformation, it is wearable, but still it is difficult to compatible with traditional cloth, especially followed without the same be cleaned multiple times of image of Buddha clothes
Ring uses.If the modification of functional layer, such as spraying plating conductive material layer mode are only carried out to the surface of traditional cloths, although energy
Realize flexibility stress sensing capabilities, can also be compatible with cloth, but often there is in use or be cleaned multiple times
Journey is easy to happen the problem of function film layer falls off.
Therefore, utility model one kind being capable of capable of washing, anti motion interference and the good cross-linking stress for dressing experience of guarantee
Sensor is the urgent need of the wearable electronic product development of intelligence.
Utility model content
Based on this, the purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of cross-linking stress sensing
Device, with capable of washing, not easily to fall off, anti motion interference, high resolution, high sensitivity and compatible with existing textile technology
Advantage.
To achieve the goals above, the technical solution adopted in the utility model is：A kind of cross-linking strain gauge, including
Two conductive fiber beams, every conductive fiber beam include two sections of shrinkage parts and the fluffy knot that is arranged between two sections of shrinkage parts
Structure；The fluff structure of two conductive fiber beams interts mutually and is formed interspersed knot, and wherein one section of receipts of every conductive fiber beam
Beam portion is electrically connected with external circuit respectively.
The working principle of the utility model is：Have the conduction of fluff structure fine using two conducting fiber compositions first
Beam is tieed up, it is uniform or non-homogeneous interspersed based on more conducting fibers progress, it is led so that generating electric current between conducting fiber
Logical and non-conduction channel.Further, the resistance sizes of sensor are determined by the quantity in the channel of conducting；Its
It is secondary, it is electrically connected using conductive fiber Shu Zuowei lead with peripheral circuit realization, so that electric current flows through interting with fluff structure
Junction structure；Finally, under the effect of external force, so that the quantity of the contact knot between interspersed carbon fiber wire increases mutually, thus
The channel for making it possible to the electric current for conducting sharply increases, and shows as under the whole contact resistance between two conductive fiber beams
Drop, and the size of the change rate of resistance and suffered external force is at corresponding relationship.After cancelling external force, which can restore
To initial resistance value.
Compared with prior art, cross-linking strain gauge described in the utility model has the following advantages that：
(1) strain gauge based on the interspersed knot of conductive fiber is constructed using the conductive fiber beam with fluff structure.
In the sensor, fluff structure can compress under the action of external carbuncle, lead to the resistance decline of interspersed knot, pass through measurement
Size of the change rate of interspersed junction resistance to induction force, while the electric conductivity for also using conductive fiber itself may act as leading
Line is woth no need to additional lead, thus to realize that the strain gauge of full textile material provides possibility.
(2) using the method compatible with weaving manufacture, cross-linking strain gauge is woven into cloth or textile, nothing
Other materials need to be added, in the function and attribute for not changing cloth or textile itself, realize it is wearable, capable of washing, can be to people
The flexibility stress senser element that body-centered rate and pulse are effectively monitored.
In order to achieve better technical results, further technical improvements include the fluff structure, which includes more, leads
Electric fiber filament；Intert the current channel for forming multiple conductings or not turning between the conducting fiber of two fluff structures mutually.
In order to achieve better technical results, further technical improvements include the conducting fibers of the interspersed knot
Between uniformly intert, and form multiple conductings or the electric channels that do not turn on.
In order to achieve better technical results, further technical improvements include the conducting fibers of the interspersed knot
Between electric channels that are non-homogeneous interspersed, and forming multiple conductings or do not turn on.
In order to achieve better technical results, further technical improvements include, two sections of shrinkage parts with it is described fluffy
Loose structure is integral type setting, and wherein one section of shrinkage part of every conductive fiber beam is connect with outwardly extending conducting wire.
In order to achieve better technical results, further technical improvements include, further include flexible cloth substrate and
Weaving knot, two conductive fiber beams are fixed in flexible cloth substrate by knot of weaving.
In order to achieve better technical results, further technical improvements include the quantity of the weaving knot is four
It is a, it is described it is interspersed knot be fixed in the flexible cloth substrate by four weaving knots respectively, and each weaving knot with wear
The centre distance for inserting knot is greater than 1mm.
In order to achieve better technical results, further technical improvements include the conducting fiber is carbon, metal
Or conductive polymer material.
In order to achieve better technical results, further technical improvements include the numbers of the more conducting fibers
Amount is more than 10.
In order to achieve better technical results, further technical improvements include the flexible cloth substrate is not lead
Electric material can be fiber crops, mulberry silk, terylene, plain cloth, fine cloth, silk or flannelette.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the cross-linking strain gauge of the utility model；
Fig. 2 is another schematic diagram of the cross-linking strain gauge of the utility model.
Specific embodiment
To further illustrate each embodiment, the utility model is provided with attached drawing.These attached drawings are in the utility model discloses
A part of appearance mainly to illustrate embodiment, and can cooperate the associated description of specification former come the running for explaining embodiment
Reason.Cooperation refers to these contents, and those skilled in the art will be understood that other may obtain embodiment and this is practical
Novel advantage.
Please refer to Fig. 1 to Fig. 2.The cross-linking strain gauge of the utility model comprising two conductive fiber beams
10, every conductive fiber beam 10 includes two sections of shrinkage parts 11 and the fluff structure 12 being arranged between two sections of shrinkage parts 11；Two
The fluff structure 12 of root conductive fiber beam 10 is interspersed mutually and forms interspersed knot 20, and wherein one section of every conductive fiber beam 10
Shrinkage part 11 is electrically connected with external circuit respectively.
Specifically, the fluff structure 12 includes more conducting fibers 121, is existed between more conducting fibers 121
Multiple gaps；The conducting fiber 121 that two fluff structures 12 intert mutually be formed by interspersed knot 20 formed it is multiple conducting or
The electric channel not turned on.Under the action of stress, the quantity of the conducting fiber 121 of the interspersed contact of two conductive fiber beams 10
And mutual gap is all varied.In order to improve the sensitivity of interspersed knot 20, the more conducting fibers 121
Quantity is more than 10.In addition, the conducting fiber 121 is carbon, metal or conductive polymer material.
Wherein, setting either non-homogeneous interspersed setting is uniformly interted between the conducting fiber 121 of the interspersed knot 20,
And the electric channel for forming multiple conductings or not turning on.In addition, two sections of shrinkage parts 11 and the fluff structure 12 are integral type
Setting, wherein one section of shrinkage part 11 of every conductive fiber beam 10 are connect with outwardly extending conducting wire 30.
In the present embodiment, it is further preferable that the cross-linking strain gauge of the utility model further includes flexible cloth substrate
40 and weaving knot 50, two conductive fiber beams 40 by weave knot 50 be fixed in flexible cloth substrate 40.
Wherein, the flexible cloth substrate 40 be electrically non-conductive material, can be fiber crops, mulberry silk, terylene, plain cloth, fine cloth,
Silk or flannelette.In addition, the quantity of the weaving knot 50 is four, the interspersed knot 20 passes through four weaving knots respectively
50 are fixed in the flexible cloth substrate 40, and each weaving knot 50 and the centre distance of interspersed knot are greater than 1mm.
Illustrate the working principle of the cross-linking strain gauge of the utility model below：
Under the action of external force F1, the conducting that is formed between the conducting fiber 121 that two fluff structures 12 intert mutually
The quantity of current channel increases with the increase of external force, so that the resistance value of strain gauge strongly reduces；
When external force F1 continues to increase to F2, intert the pore size between the conducting fiber 121 of the interspersed contact of knot 20
And its quantity in the conducting electric current channel formed has been saturation value；Even if external force is still increasing, but strain gauge
Resistance be no longer changed, reach saturation value；
When external force is withdrawn, the overall structure of strain gauge is restored to original state, and resistance sizes are restored to initial electricity
Resistance value；
Wherein, F1, F2, be the external force value of different numerical value, and be sequentially increased.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model cross-linking strain gauge range.It should be pointed out that for this
For the those of ordinary skill in field, without departing from the concept of the premise utility, several deformations can also be made and changed
Into these are all within the protection scope of the present invention.
Claims (10)
1. a kind of cross-linking strain gauge, it is characterised in that：Including two conductive fiber beams, every conductive fiber beam includes two
Section shrinkage part and the fluff structure being arranged between two sections of shrinkage parts；The fluff structure of two conductive fiber beams interts mutually simultaneously
Interspersed knot is formed, and wherein one section of shrinkage part of every conductive fiber beam is electrically connected with external circuit respectively.
2. cross-linking strain gauge according to claim 1, it is characterised in that：The fluff structure includes more conductions
Fiber filament；Intert the current channel for forming multiple conductings or not turning between the conducting fiber of two fluff structures mutually.
3. cross-linking strain gauge according to claim 2, it is characterised in that：The conducting fiber of the interspersed knot it
Between uniformly intert, and form multiple conductings or the electric channels that do not turn on.
4. cross-linking strain gauge according to claim 2, it is characterised in that：The conducting fiber of the interspersed knot it
Between electric channels that are non-homogeneous interspersed, and forming multiple conductings or do not turn on.
5. cross-linking strain gauge according to claim 1, it is characterised in that：Two sections of shrinkage parts with it is described fluffy
Structure is integral type setting, and wherein one section of shrinkage part of every conductive fiber beam is connect with outwardly extending conducting wire.
6. cross-linking strain gauge according to claim 1, it is characterised in that：It further include flexible cloth substrate and spinning
Knot is knitted, two conductive fiber beams are fixed in flexible cloth substrate by knot of weaving.
7. cross-linking strain gauge according to claim 6, it is characterised in that：The quantity of the weaving knot is four
It is a, it is described it is interspersed knot be fixed in the flexible cloth substrate by four weaving knots respectively, and each weaving knot with wear
The centre distance for inserting knot is greater than 1mm.
8. cross-linking strain gauge according to claim 2, it is characterised in that：The conducting fiber is carbon, metal
Or conductive polymer material.
9. cross-linking strain gauge according to claim 2, it is characterised in that：The quantity of the more conducting fibers
More than 10.
10. cross-linking strain gauge according to claim 6, it is characterised in that：The flexible cloth substrate is not lead
Electric material can be fiber crops, mulberry silk, terylene, plain cloth, fine cloth, silk or flannelette.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820638438.6U CN208109300U (en) | 2018-04-28 | 2018-04-28 | A kind of cross-linking strain gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820638438.6U CN208109300U (en) | 2018-04-28 | 2018-04-28 | A kind of cross-linking strain gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208109300U true CN208109300U (en) | 2018-11-16 |
Family
ID=64114380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820638438.6U Active CN208109300U (en) | 2018-04-28 | 2018-04-28 | A kind of cross-linking strain gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208109300U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411621A (en) * | 2018-04-28 | 2019-11-05 | 五邑大学 | A kind of cross-linking strain gauge |
| CN110477928A (en) * | 2019-09-19 | 2019-11-22 | 五邑大学 | Tensile type of stress sensor and crooked sensory device |
| CN111251668A (en) * | 2018-12-03 | 2020-06-09 | 东华镜月（苏州）纺织技术研究有限公司 | Intelligent knitted fabric and control system |
-
2018
- 2018-04-28 CN CN201820638438.6U patent/CN208109300U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411621A (en) * | 2018-04-28 | 2019-11-05 | 五邑大学 | A kind of cross-linking strain gauge |
| CN110411621B (en) * | 2018-04-28 | 2024-07-16 | 五邑大学 | Interpenetration type stress sensor |
| CN111251668A (en) * | 2018-12-03 | 2020-06-09 | 东华镜月（苏州）纺织技术研究有限公司 | Intelligent knitted fabric and control system |
| CN110477928A (en) * | 2019-09-19 | 2019-11-22 | 五邑大学 | Tensile type of stress sensor and crooked sensory device |
| CN110477928B (en) * | 2019-09-19 | 2024-02-06 | 五邑大学 | Tensile stress sensor and bending sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208109300U (en) | A kind of cross-linking strain gauge | |
| US11166644B2 (en) | Module for detecting electrical signals from body skin | |
| CN107692376A (en) | A kind of Sign Language Recognition Intelligent glove of integrated weaving base ess-strain sensing network | |
| Niu et al. | High-speed sirospun conductive yarn for stretchable embedded knitted circuit and self-powered wearable device | |
| JP7460535B2 (en) | Cloth material with electrode wiring | |
| CN110411622A (en) | A kind of full weaving strain gauge | |
| CN1570236A (en) | Resilient ribbon capable of preventing web contraction | |
| CN110926661A (en) | Flexible fabric pressure and strain composite sensor | |
| CN110440958A (en) | A kind of capacitance pressure transducer, based on warp-knitted spacer fabric | |
| CN107488915A (en) | A kind of machine-knitted structure Stretchable fabric circuit board and wearable device | |
| CN208026404U (en) | A kind of full weaving strain gauge | |
| CN105895199A (en) | Flexible stretchable and washable conductive connecting piece | |
| Wang et al. | Ultra-fine self-powered interactive fiber electronics for smart clothing | |
| CN208026409U (en) | A kind of dock strain gauge | |
| CN110411625A (en) | A kind of dock strain gauge | |
| Fan et al. | A Universal, Highly Sensitive and Seamlessly Integratable Textile Resistive Strain Sensor | |
| CN110411621A (en) | A kind of cross-linking strain gauge | |
| CN206058922U (en) | A kind of washable conducting connecting part of flexible extensible | |
| KR20190057812A (en) | Electronic Textile Temperature Sensors and Clothing Using the Same | |
| CN208545545U (en) | A kind of pure mulberry silk high-strength wearable Machine Washable pant fabric structure | |
| EP2775018B1 (en) | Fabric pressure switch | |
| CN207396401U (en) | Humidity sensor and with its wearable device | |
| CN112444330A (en) | Fabric separating pressure sensor | |
| KR20190057811A (en) | Stretchable temperature sensor using carbon nanotube sheets and manufacturing method thereof | |
| Beneux | Smart textiles as the digital interface of the future |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |