CN107144379A - A kind of resistive pressure is distributed fabric sensor - Google Patents
A kind of resistive pressure is distributed fabric sensor Download PDFInfo
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- CN107144379A CN107144379A CN201710295476.6A CN201710295476A CN107144379A CN 107144379 A CN107144379 A CN 107144379A CN 201710295476 A CN201710295476 A CN 201710295476A CN 107144379 A CN107144379 A CN 107144379A
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- 239000004744 fabric Substances 0.000 title claims abstract description 63
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 19
- 238000002955 isolation Methods 0.000 claims abstract description 4
- 238000000926 separation method Methods 0.000 claims description 10
- 239000004020 conductor Substances 0.000 claims description 6
- 238000011065 in-situ storage Methods 0.000 claims description 3
- 238000006116 polymerization reaction Methods 0.000 claims description 3
- 229920000128 polypyrrole Polymers 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000012209 synthetic fiber Substances 0.000 claims description 3
- 229920002994 synthetic fiber Polymers 0.000 claims description 3
- 238000009826 distribution Methods 0.000 description 16
- 238000003825 pressing Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000012544 monitoring process Methods 0.000 description 5
- 238000007639 printing Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000004753 textile Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 206010011985 Decubitus ulcer Diseases 0.000 description 2
- 229920004933 Terylene® Polymers 0.000 description 2
- 238000013480 data collection Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920004934 Dacron® Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 208000004210 Pressure Ulcer Diseases 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 206010070834 Sensitisation Diseases 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000003854 Surface Print Methods 0.000 description 1
- 208000025865 Ulcer Diseases 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
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- 230000008021 deposition Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009986 fabric formation Methods 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000004987 plasma desorption mass spectroscopy Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- 229910052709 silver Inorganic materials 0.000 description 1
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- 238000004544 sputter deposition Methods 0.000 description 1
- 231100000397 ulcer Toxicity 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/16—Measuring force or stress, in general using properties of piezoelectric devices
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
Fabric sensor, including upper electrode layer, conductive layer and the lower electrode layer from top to bottom stacked successively are distributed the present invention relates to a kind of resistive pressure；The upper electrode layer and lower electrode layer are the fabric that different in width provision is made into using conductive yarn and non-conductive yarn, wherein, the striped of conductive yarn formation constitutes electrode, and the striped of non-conductive yarn formation constitutes electrode isolation band, two kinds of fringe spacing arrangements.The present invention, which can be perceived, applies stressed size and location, and print independent of fabric face, applies conducting film.
Description
Technical field
The present invention relates to function textile design field, more particularly to a kind of resistive pressure distribution fabric sensing
Device.
Background technology
After the proposition and rise of smart home and Internet of Things concept, intelligent textile was having become in recent years
The study hotspot of persons, but traditional sensors are still used mostly as the sensing elements of core, its rigidity is big.Due to
Human body has bending and deformable body part, it is easy to moved each other relative to sensor, conventional rigid sensor array
Actual use be limited.On the contrary, a flexible fabric pressure sensor is required, it is soft that it remains textile substantially
The characteristic such as soft, yielding, comfortable.
Fabric pressure sensor has application in fields such as medical treatment ＆ health monitoring, life staying idle at home, motions.Fabric pressure sensing
The research of device constantly makes a breakthrough, and has partial monopoly both at home and abroad and academic documents are disclosed, and such as patent of invention " knit by flexible intelligent
Thing sensor and its manufacture method, intelligent mattress and monitoring system " (publication number：CN106236015A), the patent passes through in bed
Integrated flexible intelligent fabric sensor on pad, the body sign situation of oneself can be monitored in real time during sleep by facilitating user to be in,
Its sensing principle is piezo-resistance, and sensitive layer in fabric fibre web surface by inlaying graphene and CNT etc nanometer
Sensitization functional material and formed, patterned electrodes and contact conductor on the flexible substrate such as PVP, PDMS surface by imprinting, beating
The printing of the methods such as print, sensitive layer and electrode layer formation sandwich structure.It is disadvantageous in that lead in electrode layer in flexibility
Substrate surface prints, and is easily cracked in stretcher strain and causes electric property failure；Each electrode is both needed to connect one respectively
Horizontal lead and a longitudinal lead, cause overall line excessively cumbersome and complexity；Electrode layer is stuck or is pressed together on pressure-sensitive
Material surface, in use because the relative sliding friction between human body and sensor causes shearing mistake occur between multilayer
Position, substantially reduces the stability of sensor.United States Patent (USP) " Fabric-based pressure sensor arrays and
Methods for data analysis " (publication numbers：US2012323501A1 knitting for a variety of sandwich array structures is proposed in)
Thing pressure sensor, its sensing principle is capacitive sensing, clamps non-conductive fabric formation capacitance structure using crossed electrode, hands over
Interdigitated electrode is in fabric face formation banding using the method such as sputtering, printing deposition conductive material.
In addition to the above-mentioned patent being disclosed, IEEE Engineering in Medicine and Biology
Society magazines meeting paper " Fabric-based pressure sensor array for decubitus in 2013
Described in ulcer monitoring " clinically using case of the fabric array of pressure sensors to pressure ulcer management, by three
Layer fabric constitutes sensor, and levels are staggeredly placed and realize positioning function, and the sensing principle and structure of the sensor are similar to
Aforementioned patent (publication number：CN106236015A).Proceedings of the SIGCHI Conference on Human
Factors in Computing Systems meeting paper " Mechanical force redistribution:
Devised in enabling seamless, large-format, high-accuracy surface interaction " a
Pressure reallocation, seamless combination, the fabric pressure sensor of high-precision large format.The not full fabric pressing of this pressure sensor
Force snesor, the sensor the superiors are latticed semi-rigid material, and middle two layers of each application point is mainly by printing pressure drag ink
Water one Fu Saier polyester fiber grid of formation, orlop is rigid material, the flexibility characteristics for not possessing fabric sensor.The knot
Structure there may be two layers of response point above and below centre and can not accurately correspond, and cause experiment to produce deviation, influence sliding friction
During to the stability monitoring of contact condition.
In summary, existing pressure distribution sensor is formed so that layer structure is laminated, is adopted using conductive copper wire with data
Collection unit is connected, and electrode layer is often formed using printing electrically conductive ink solidification, this resistance to alternating bending of electrode structure, stretching energy
Power is poor.Also, electrode layer is in close contact with resistance sensitive layer in existing sensor construction, when no pressure is acted on still in work
State, power consumption is high, in some instances it may even be possible to long-term fever occurs and causes potential safety hazard.When sensor be applied to human body with contact surface it
Between contact condition dynamic detection when, except requiring soft, comfortable, also require to move repeatedly in human body or activity in produce
Tensile, compressive, bending and tangential deformation not brokenization sensor construction.In order to meet such application requirement, best sensor is integrated
Fabric construction, and print, painting conducting film formation electrode or sensitive layer independent of fabric face.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of resistive pressure distribution fabric sensor, can perceive and apply
Stressed size and location, and print independent of fabric face, apply conducting film.
The technical solution adopted for the present invention to solve the technical problems is：A kind of resistive pressure distribution fabric sensing is provided
Device, including upper electrode layer, conductive layer and the lower electrode layer from top to bottom stacked successively；The upper electrode layer and lower electrode layer are
The fabric of different in width provision is made into using conductive yarn and non-conductive yarn, wherein, the striped of conductive yarn formation constitutes electricity
Pole, the striped of non-conductive yarn formation constitutes electrode isolation band, two kinds of fringe spacing arrangements.
The conductive layer is the conductive fabric by the way that the chemical fabric of polypyrrole in-situ polymerization is obtained.
Separation layer is additionally provided between the conductive layer and lower electrode layer.
The separation layer is the fabric being made into mesh tissue and synthetic fibers.
The upper electrode layer and lower electrode layer are placed in the way of the two striped orthohormbic structure, obtain m*n array structures, its
In, m is the striped quantity of conductive yarn formation in upper electrode layer；N is the striped quantity of conductive yarn formation in lower electrode layer.
The conductive yarn is also distributed the contact conductor of fabric sensor as resistive pressure.
Beneficial effect
As a result of above-mentioned technical scheme, the present invention compared with prior art, has the following advantages that and actively imitated
Really：
1st, electrode layer of the invention is the integrated stripes using conductive yarn and non-conductive yarns interwoven, knot
Structure is stable, flexibly can easily design different monitored densities and the distributed fabric pressure sensor of precision, resistant to bending and drawing
Stretch fatigue behaviour and be significantly better than coating or printing conductive electrode.
2nd, the contact conductor in the present invention can use the partially electronically conductive yarn of woven conductive striped, simplify integrated circuit knot
Structure, improves electrode-lead connective stability, improves the stability and flexible characteristic of sensor.
3rd, separation layer formation piezo-resistor structure is added between conductive layer and electrode layer so that whole sensor is in no pressure
Or when under smaller pressure, in off position, both effectively extend its service life, also reached the effect of environmental protection and energy saving
Really.
4th, whole distributed fabric pressure sensor uses textile, greatly remains its comfortable soft characteristic,
Apply and provided convenience in terms of medical treatment ＆ health monitoring for after.
Brief description of the drawings
Fig. 1 is the schematic diagram that the resistive pressure that the present invention is provided is distributed fabric sensor；
Fig. 2 is pressure distribution fabric sensor electrode layer structure schematic diagram；
Fig. 3 is pressure distribution fabric sensor insulation layer structure schematic diagram；
Fig. 4 is the schematic diagram of pressure distribution fabric sensor electrode layer intertexture array；
Fig. 5 is the equivalent circuit diagram of pressure distribution fabric sensor；
The profile of pressure distribution fabric sensor when Fig. 6 is no pressure；
Fig. 7 is the profile of pressure distribution fabric sensor when having pressure；
Fig. 8 a are the magnitude of voltage figures produced during Continued depression d points under 15N, 20N load；
Fig. 8 b are the magnitude of voltage figures produced during Continued depression d points under 25N, 30N load；
Fig. 8 c are the magnitude of voltage figures produced during Continued depression d points under 35N, 40N load；
Fig. 9 a are under 15N, 20N load, while pressing the magnitude of voltage figure produced during four intertwined points；
Fig. 9 b are under 25N, 30N load, while pressing the magnitude of voltage figure produced during four intertwined points；
Fig. 9 c are under 35N, 40N load, while pressing the magnitude of voltage figure produced during four intertwined points.
Embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than limitation the scope of the present invention.In addition, it is to be understood that after the content of the invention lectured has been read, people in the art
Member can make various changes or modifications to the present invention, and these equivalent form of values equally fall within the application appended claims and limited
Scope.
Embodiments of the present invention are related to a kind of resistive pressure distribution fabric sensor, as shown in figure 1, including by upper
Under the upper electrode layer 1, conductive layer 2 and the lower electrode layer 4 that stack successively；As shown in Fig. 2 the upper electrode layer 1 and lower electrode layer 4 are equal
To be made into the fabric of different in width provision using conductive yarn and non-conductive yarn, wherein, the striped of conductive yarn formation is constituted
Electrode, the striped of non-conductive yarn formation constitutes electrode isolation band, two kinds of fringe spacing arrangements.The upper electrode layer 1 and lower electricity
Pole layer 4 is placed in the way of the two striped orthohormbic structure, obtains m*n array structures, wherein, m is conductive yarn in upper electrode layer
The striped quantity of formation；N is the striped quantity of conductive yarn formation in lower electrode layer, so flexibly can easily design difference
The distributed fabric pressure sensor of monitored density and precision.In present embodiment, using conductive yarn as contact conductor, by
The part yarn of conductive electrode striped is constituted, and is simplified integrated circuit structure, is improved the flexible characteristic of sensor.
Separation layer 3 is additionally provided between the conductive layer 2 and lower electrode layer 4, as shown in figure 3, the separation layer 3 is with mesh
The fabric that tissue and synthetic fibers are made into.Separation layer 3 is added between conductive layer 2 and lower electrode layer 4 can form sensor
Piezo-resistance unit.Meanwhile, when this sandwich construction make it that whole sensor is under no pressure or smaller pressure, in not
Working condition, reduces the generation of circuit heat, effectively extends its service life, has reached the mesh of environmental protection and energy saving and safety
's.
The present invention is further illustrated below by a specific embodiment.
Shown in Fig. 1 is that a kind of resistive pressure is distributed fabric sensor, including upper electrode layer 1 and lower electrode layer 4, conduction
Layer 2 and dacron mesh cloth separation layer 3, wherein upper electrode layer 1 and lower electrode layer 4 be using silver-plated polyamide fibre conductive yarn and
The integrated molding stripes of the non-conductive yarns interwoven of terylene, conductive layer 2 is obtained by polypyrrole in-situ polymerization
Conductive fabric, conductive effect is good, and separation layer 3 uses terylene chemical ＆ blended fabric grid cloth, and lead is the plating silver yarn of electrode layer
Extension.In this example, upper electrode layer 1 and lower electrode layer 4 constitute 2*2 array structure, it is assumed that four intertextures
Point is a points shown in Fig. 4, b points, c points, d points, and arrow points to and represents electric current input and output direction.Fig. 5 is pressure distribution fabric
The equivalent circuit diagram of sensor, when pressure distribution fabric sensor is connected with external circuitses, is adopted using wireless multifunctional data
Collection equipment is acquired.Due to the voltage change situation that pressing intertwined point is produced, pass through resistance R1, resistance R2, resistance R'1, resistance
R'2(R1=R2=200 Ω, R'1=R'2=100 Ω) determine the size and location of power.Pressure distribution is knitted when Fig. 6 is no pressure
The profile of thing sensor, Fig. 7 is the profile of pressure distribution fabric sensor when having pressure, i.e. piezo-resistance layer conductive fabric
Through mesh, circuit is connected, and produces voltage change, is changed by wireless multifunctional data acquisition equipment collection voltages, and show
Show in computer program or mobile phone A PP.
Fig. 8 is the magnitude of voltage figure produced during Continued depression d points under 15N, 20N, 25N, 30N, 35N, 40N load；Fig. 9
It is under intensity 15N, 20N, 25N, 30N, 35N, 40N load, while pressing the magnitude of voltage figure produced during four intertwined points.
As seen from Figure 8, single intertwined point is under different degrees of load, and voltage change substantially, is responded sensitive；By Fig. 9
As can be seen that when pressing simultaneously, when single intertwined point is pressed compared with have significant difference, illustrate that the pressure distribution fabric is sensed
Device can both realize sensed pressure size and location, and the energy, the double effectses of extension device service life can be saved again.
Claims (6)
1. a kind of resistive pressure is distributed fabric sensor, it is characterised in that including the upper electrode layer from top to bottom stacked successively
(1), conductive layer (2) and lower electrode layer (4)；The upper electrode layer (1) and lower electrode layer (4) are using conductive yarn and not led
Electric yarn is made into the fabric of different in width provision, wherein, the striped of conductive yarn formation constitutes electrode, non-conductive yarn formation
Striped constitutes electrode isolation band, two kinds of fringe spacing arrangements.
2. resistive pressure according to claim 1 is distributed fabric sensor, it is characterised in that the conductive layer (2) is
Pass through the conductive fabric for obtaining the chemical fabric of polypyrrole in-situ polymerization.
3. resistive pressure according to claim 1 is distributed fabric sensor, it is characterised in that the conductive layer (2) and
Separation layer (3) is additionally provided between lower electrode layer (4).
4. resistive pressure according to claim 3 is distributed fabric sensor, it is characterised in that the separation layer (3) is
The fabric being made into mesh tissue and synthetic fibers.
5. resistive pressure according to claim 1 is distributed fabric sensor, it is characterised in that the upper electrode layer (1)
Placed with lower electrode layer (4) in the way of the two striped orthohormbic structure, obtain m*n array structures, wherein, m is in upper electrode layer
The striped quantity of conductive yarn formation；N is the striped quantity of conductive yarn formation in lower electrode layer.
6. resistive pressure according to claim 1 is distributed fabric sensor, it is characterised in that the conductive yarn is also made
The contact conductor of fabric sensor is distributed for resistive pressure.
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| CN201710295476.6A CN107144379A (en) | 2017-04-28 | 2017-04-28 | A kind of resistive pressure is distributed fabric sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710295476.6A CN107144379A (en) | 2017-04-28 | 2017-04-28 | A kind of resistive pressure is distributed fabric sensor |
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Family
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| CN201710295476.6A Pending CN107144379A (en) | 2017-04-28 | 2017-04-28 | A kind of resistive pressure is distributed fabric sensor |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593157A (en) * | 2018-03-13 | 2018-09-28 | 上海思澄智能科技有限公司 | A kind of pressure distributed monitoring fabric sensor |
| CN109724723A (en) * | 2018-12-27 | 2019-05-07 | 武汉飞帛丝科技有限公司 | Wearable pressure sensor of textile material base and preparation method thereof |
| CN109724724A (en) * | 2018-12-27 | 2019-05-07 | 武汉飞帛丝科技有限公司 | Pressure distributed flexible sensor and preparation method thereof |
| CN109799013A (en) * | 2019-01-28 | 2019-05-24 | 江南大学 | A kind of pressure resistance type flexible sensor and preparation method thereof |
| TWI664407B (en) * | 2018-04-11 | 2019-07-01 | Yuan Ze University | Cloth cover with flexible pressure sensing function |
| CN110044525A (en) * | 2019-04-26 | 2019-07-23 | 西安建筑科技大学 | A kind of flexible resistive dot matrix pressure detecting system, method and apparatus |
| CN110411618A (en) * | 2018-04-28 | 2019-11-05 | 五邑大学 | A kind of point contact type flexibility dynamometer |
| CN110403589A (en) * | 2018-04-28 | 2019-11-05 | 五邑大学 | A kind of disposable heart rate patch |
| CN110612437A (en) * | 2018-02-28 | 2019-12-24 | 住友理工株式会社 | Sensor electrode and planar sensor using same |
| WO2020161961A1 (en) * | 2019-02-06 | 2020-08-13 | タカノ株式会社 | Pressure sensor |
| CN111972727A (en) * | 2019-05-24 | 2020-11-24 | 美宸科技股份有限公司 | Wearable article with sensing function |
| CN112179530A (en) * | 2020-09-14 | 2021-01-05 | 电子科技大学 | Flexible pressure sensor based on double-sided microstructure electrode and paper and preparation method |
| CN112294572A (en) * | 2019-07-26 | 2021-02-02 | 美宸科技股份有限公司 | Air cushion device and air cushion system for medical care |
| CN112566547A (en) * | 2018-09-11 | 2021-03-26 | A·李 | Pressure recording system and method for biometric identification |
| CN113739965A (en) * | 2021-09-18 | 2021-12-03 | 尧乐网络科技（上海）有限公司 | Flexible fabric sensor |
| WO2022083441A1 (en) * | 2020-10-19 | 2022-04-28 | Super Rich Moulders Limited | Reactive pillow and the method of fabrication |
| CN115389064A (en) * | 2022-09-27 | 2022-11-25 | 同济大学 | Carbon fiber-based piezoresistive pressure sensing array and preparation method and application thereof |
| CN115607142A (en) * | 2022-10-13 | 2023-01-17 | 青岛大学 | Full-fiber-based pressure monitoring system |
| CN116334948A (en) * | 2023-03-03 | 2023-06-27 | 金陵科技学院 | Polypyrrole/silver/cellulose composite paper-based material, and preparation method and application thereof |
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Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110612437A (en) * | 2018-02-28 | 2019-12-24 | 住友理工株式会社 | Sensor electrode and planar sensor using same |
| CN108593157A (en) * | 2018-03-13 | 2018-09-28 | 上海思澄智能科技有限公司 | A kind of pressure distributed monitoring fabric sensor |
| CN108593157B (en) * | 2018-03-13 | 2024-02-02 | 上海思澄智能科技有限公司 | Fabric sensor for pressure distributed monitoring |
| TWI664407B (en) * | 2018-04-11 | 2019-07-01 | Yuan Ze University | Cloth cover with flexible pressure sensing function |
| CN110411618A (en) * | 2018-04-28 | 2019-11-05 | 五邑大学 | A kind of point contact type flexibility dynamometer |
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Application publication date: 20170908 |