CN112134482A - Angle sensor based on anisotropic triboelectric nano-generator and manufacturing method - Google Patents
Angle sensor based on anisotropic triboelectric nano-generator and manufacturing method Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N1/00—Electrostatic generators or motors using a solid moving electrostatic charge carrier
- H02N1/04—Friction generators
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- B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
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- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/30—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes
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Abstract
The embodiment of the application discloses angle sensor and manufacturing method based on anisotropic triboelectric nano-generator, angle sensor includes: the first rotating disc comprises a first angle sensor friction layer and a first angle sensor electrode layer, and the first angle sensor friction layer is made of an anisotropic nanofiber film material; the second turntable comprises a second angle sensor friction layer and a second angle sensor electrode layer, and the second angle sensor friction layer is made of an anisotropic nanofiber film material; a detection unit for detecting an electric signal output between the first angle sensor electrode layer and the second angle sensor electrode layer; and the calculating unit is used for determining the relative rotation angle of the first rotating disc and the second rotating disc according to the electric signals. The embodiment of the application utilizes the anisotropic triboelectric nano-generator to prepare the angle sensor, and realizes the application of the anisotropic triboelectric nano-generator on the information level.
Description
Technical Field
The application relates to the technical field of triboelectric nanogenerators, in particular to an angle sensor based on an anisotropic triboelectric nanogenerator and a manufacturing method thereof.
Background
A Triboelectric nanogenerator (TENG) is an energy generating unit, in an internal circuit of which, due to a Triboelectric effect, charge transfer occurs between two thin layers of friction materials with different Triboelectric polarities, so that a potential difference is formed between the two thin layers; in the external circuit, electrons flow between two electrodes respectively stuck on the back surface of the friction material layer or between the electrodes and the ground under the driving of the potential difference, so that the potential difference is balanced. The device has the characteristics of small volume and capability of converting weak mechanical energy into electric energy for output.
However, the use and research of the triboelectric nanogenerators in the prior art have only focused on the angle of energy, e.g. collection or use of the output electrical energy of the triboelectric nanogenerators.
Disclosure of Invention
The embodiment of the application provides an angle sensor based on an anisotropic friction electric nano generator and a manufacturing method thereof, so as to be beneficial to solving the technical problems in the prior art.
In a first aspect, an embodiment of the present application provides an angle sensor based on an anisotropic triboelectric nano-generator, which includes: the device comprises a first rotating disc, a second rotating disc, a detection unit and a calculation unit;
the first rotating disc comprises a first angle sensor friction layer and a first angle sensor electrode layer, and the first angle sensor friction layer is made of an anisotropic nanofiber film material;
the second turntable comprises a second angle sensor friction layer and a second angle sensor electrode layer, and the second angle sensor friction layer is made of an anisotropic nanofiber film material;
the first carousel and the second carousel are configured to: the first rotating disk and the second rotating disk can rotate relatively, when the first rotating disk and the second rotating disk rotate relatively, the first angle sensor friction layer and the second angle sensor friction layer rub against each other, and a potential difference is generated between the first angle sensor electrode layer and the second angle sensor electrode layer;
the detection unit is used for detecting an electric signal output between the first angle sensor electrode layer and the second angle sensor electrode layer;
and the calculating unit is used for determining the relative rotation angle of the first rotating disc and the second rotating disc according to the electric signal.
In an optional embodiment, the first rotating disc and the second rotating disc are arranged in parallel, and the first rotating disc and the second rotating disc rotate along an axis perpendicular to a plane where the first rotating disc or the second rotating disc is located.
In an optional embodiment, the first rotating disc and/or the second rotating disc is circular, and the axis passes through a central point of the first rotating disc and/or the second rotating disc.
In an alternative embodiment, the relative angle of the nanofibers in the first angle sensor friction layer and the second angle sensor friction layer is 0 ° in the initial position.
In an alternative embodiment, the first angle sensor friction layer is a polyvinylidene fluoride nanofiber membrane and the second angle sensor friction layer is a nylon nanofiber membrane.
In a second aspect, an embodiment of the present application provides a method for manufacturing an angle sensor based on an anisotropic triboelectric nanogenerator, including:
preparing an anisotropic nanofiber film material by adopting an electrostatic spinning method;
the anisotropic nanofiber membrane material is used as a first angle sensor friction layer and a second angle sensor friction layer of the angle sensor of any one of the first aspect, and the anisotropic triboelectric nanogenerator is obtained through assembly.
In an alternative embodiment, the preparing the anisotropic nanofiber film material by using the electrospinning method specifically includes:
preparing an electrostatic spinning solution;
and (3) placing the electrostatic spinning solution in a spraying device, and spinning on the surface of a rotating roller by using an electrostatic spinning method to obtain the anisotropic nanofiber membrane material.
In an optional embodiment, the method further comprises:
and adjusting the order degree of the nano fibers in the anisotropic nano fiber film material by adjusting the rotating speed of the roller.
In an alternative embodiment, the surface of the roller is an aluminum foil, and the anisotropic nanofiber membrane material is spun on the surface of the aluminum foil.
In the technical scheme provided by the embodiment of the application, the angle sensor is prepared by utilizing the characteristics of different electric signals output by different relative angles of the nano fibers in the two friction layers of the anisotropic triboelectric nano generator, so that the application of the anisotropic triboelectric nano generator in an information layer is realized.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an anisotropic triboelectric nanogenerator provided in an embodiment of the present application;
FIG. 2 is a graph of the relative angle of an anisotropic nanofiber membrane versus short circuit current provided in accordance with an embodiment of the present disclosure;
FIG. 3 is a schematic flow chart illustrating a method for manufacturing an anisotropic triboelectric nanogenerator according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of an electrospinning system according to an embodiment of the present application;
FIG. 5 is an electron microscope image of a nanofiber film prepared under a roller with different rotating speeds according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of an angle sensor based on a triboelectric nanogenerator according to an embodiment of the present application;
fig. 7 is a schematic flowchart of a method for manufacturing an angle sensor based on a triboelectric nanogenerator according to an embodiment of the present application;
the symbols in the figures are represented as: 110-first friction unit, 111-first electrode layer, 112-first friction layer, 120-second friction unit, 121-second electrode layer, 122-second friction layer, 401-spraying device, 402-roller, 403-high voltage power supply, 404-propelling device, 405-liquid outlet hole, 600-angle sensor, 610-first rotating disc, 611-first angle sensor friction layer, 612-first angle sensor electrode layer, 620-second rotating disc, 621-second angle sensor friction layer, 622-second angle sensor electrode layer.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The angle sensor provided by the embodiment of the application is realized by relying on the anisotropic triboelectric nano-generator, and in order to facilitate better understanding of the technical scheme provided by the embodiment of the application by a person skilled in the art, detailed description is first provided for the anisotropic triboelectric nano-generator.
Fig. 1 is a schematic structural diagram of an anisotropic triboelectric nanogenerator provided in an embodiment of the present application, and as shown in fig. 1, the anisotropic triboelectric nanogenerator includes a first friction unit 110 and a second friction unit 120.
The first friction unit 110 includes a first friction layer 112 and a first electrode layer 111, wherein the first friction layer 112 is an anisotropic nanofiber film material; the second friction unit 120 includes a second friction layer 122 and a second electrode layer 121, and the second friction layer 122 is an anisotropic nanofiber film material. The first friction unit 110 and the second friction unit 120 are configured to: the first friction unit 110 and the second friction unit 120 may relatively move, and when the first friction unit 110 and the second friction unit 120 relatively move, the first friction layer 112 and the second friction layer 122 rub against each other, and a potential difference is generated between the first electrode layer 111 and the second electrode layer 121.
The vertical contact-separation mode triboelectric nanogenerator is taken as an example for explanation. When pressure is applied to the outside, the first friction layer 112 and the second friction layer 122 rub against each other, and charge transfer occurs between the first friction layer 112 and the second friction layer 122 to form triboelectric charge; after the pressure is released, the first friction layer 112 and the second friction layer 122 automatically separate, and because a gap exists between the first friction layer 112 and the second friction layer 122, charges on the first friction layer 112 and the second friction layer 122 cannot be completely neutralized, so that a potential difference is formed; to balance this potential difference, the charges flow in the opposite direction along the external circuit, creating a current. Such periodic application of pressure will continue to generate an alternating current signal.
It is understood that fig. 1 is only a specific form of the triboelectric nano-generator exemplified by the embodiments of the present application, and should not be taken as a limitation of the scope of the present application, and for example, in addition to the vertical contact-separation mode triboelectric nano-generator shown in fig. 1, a horizontal sliding mode, a single electrode mode, and a separate layer mode may be adopted, which should be considered as being within the scope of the present application.
It should be noted that, in the embodiment of the present application, both the first friction layer 112 and the second friction layer 122 are made of anisotropic nanofiber film material, that is, aligned nanofiber material, under the condition that other conditions are not changed, when the relative angles of the nanofibers of the first friction layer 112 and the second friction layer 122 are different, the electrical signal generated between the first electrode layer 111 and the second electrode layer 121 is different, and the electrical signal may be a voltage signal or a current signal.
Fig. 2 is a comparison graph of a relative angle of an anisotropic nanofiber film and a short-circuit current according to an embodiment of the present disclosure, as shown in fig. 2, when a relative angle of nanofibers of a first friction layer 112 and a second friction layer 122 is different within a range of 0 to 90 °, a short-circuit current value output between the first electrode layer 111 and the second electrode layer 121 is different, where when the first friction layer 112 and the second friction layer 122 are disposed in parallel, the short-circuit current is minimum, and when the first friction layer 112 and the second friction layer 122 are disposed vertically, the short-circuit current is maximum. Based on the principle, different information can be represented by different electric signals output between the first electrode layer 111 and the second electrode layer 121, and the application of the anisotropic triboelectric nanogenerator in an information layer can be realized.
For example, the nano-fiber direction of the anisotropic nano-fiber film material is invisible to naked eyes, so that the anti-counterfeiting material is prepared, and the signals output by the anisotropic triboelectric nano-generator are used for realizing information camouflage, encryption communication and other applications.
In an alternative embodiment, the first friction layer 112 is a polyvinylidene fluoride nanofiber membrane and the second friction layer 122 is a nylon nanofiber membrane.
In an alternative embodiment, the relative angle between the first friction layer 112 and the second friction layer 122 is adjustable, and the relative angle between the first friction layer 112 and the second friction layer 122 is the relative angle between the nanofibers in the first friction layer 112 and the second friction layer 122.
Corresponding to the anisotropic triboelectric nano-generator, the embodiment of the application also provides a manufacturing method of the anisotropic triboelectric nano-generator. Fig. 3 is a schematic flow chart of a manufacturing method of an anisotropic triboelectric nanogenerator according to an embodiment of the present application, as shown in fig. 3, which mainly includes the following steps.
Step S310: the anisotropic nanofiber membrane material is prepared by adopting an electrostatic spinning method.
In order to facilitate a better understanding of the present solution for the person skilled in the art, the electrostatic spinning principle is first explained below.
Electrostatic spinning is a special fiber manufacturing process, and the basic principle is that polymer solution or melt causes atomization and splitting of polymer materials through charge repulsion in a strong electric field, at the moment, substances obtained through atomization and splitting are not micro liquid drops but polymer jet flows, and after the polymer jet flows for a certain distance, the polymer jet flows and is finally solidified into fibers, so that electrostatic spinning is completed. The anisotropic nanofiber film material provided by the embodiment of the application can be prepared by adopting an electrostatic spinning method.
Fig. 4 is a schematic structural diagram of an electrospinning system provided by an embodiment of the present application, and as shown in fig. 4, the system includes a spraying device 401 and a drum 402, the drum 402 is disposed at a position opposite to an outlet hole 405 of the spraying device 401, the outlet hole 405 is connected to a high voltage power supply 403, and the drum 402 is grounded. During operation, the spraying device 401 is filled with spinning solution, the spinning solution drops at the liquid outlet 405 along with the propulsion of the propulsion device 404 of the spraying device 401, the high-voltage power supply 403 is connected at the liquid outlet 405, the spinning solution drops are atomized and split under the action of the high-voltage power supply 403 to form micro jet flow, the micro jet flow is emitted to the roller 402, the nano fiber is solidified on the roller 402 along with the rotation of the roller 402, and the anisotropic nano fiber film material is finally formed on the roller 402 along with the deposition of the nano fiber.
In the embodiment of the application, firstly, an electrostatic spinning solution needs to be prepared; and (3) placing the electrostatic spinning solution in a spraying device, and spinning on the surface of a rotating roller by using an electrostatic spinning method to obtain the anisotropic nanofiber membrane material.
In an alternative embodiment, the surface of the roller is an aluminum foil, and the anisotropic nanofiber membrane material is spun on the surface of the aluminum foil. Based on the scheme, the anisotropic nanofiber film can be used as a friction layer, and the aluminum foil can be directly used as an electrode layer.
It can be understood that to prepare polyvinylidene fluoride nanofiber membranes and nylon nanofiber membranes in the examples of the present application, spinning solutions corresponding to the polyvinylidene fluoride nanofiber membranes and the nylon nanofiber membranes are required to be prepared respectively.
The preparation method of the spinning solution corresponding to the polyvinylidene fluoride nano-fiber membrane comprises the following steps: dissolving polyvinylidene fluoride in a mixed solution of acetone and DMF (dimethylformamide), and heating until the polyvinylidene fluoride is uniformly dissolved.
The preparation method of the spinning solution corresponding to the nylon nanofiber membrane comprises the following steps: dissolving nylon in a mixed solution of formic acid and acetic acid, and stirring at room temperature until the nylon is uniformly dissolved.
Step S320: and (3) taking the anisotropic nanofiber membrane material as a first friction layer 112 and a second friction layer 122 of the anisotropic triboelectric nano generator, and assembling to obtain the anisotropic triboelectric nano generator.
It is noted that the anisotropic nature of the nanofiber film material is a result of the stretching by the rotation of the rollers. The direction parallel to the surface of the roller is defined as a transverse direction, the direction perpendicular to the surface of the roller, that is, the direction in which the roller rotates, is defined as a longitudinal direction, and the nanofibers are stretched in the longitudinal direction as the roller rotates, and the stretching effect is more obvious as the rotating speed of the roller is higher.
Thus, in an alternative embodiment of the present application, the degree of order of the nanofibers in the anisotropic nanofiber film material can be adjusted by adjusting the rotational speed of the drum.
Fig. 5 is an electron microscope image of a nanofiber film prepared under a roller with different rotating speeds according to an embodiment of the present application, where the rotating speed of the roller corresponding to fig. 5(a) is less than the rotating speed of the roller corresponding to fig. 5(b) is less than the rotating speed of the roller corresponding to fig. 5 (c). As shown in fig. 5, as the rotation speed of the drum increases, the degree of order of the resulting fibers increases, and the tensile strength of the fiber film stretched in the longitudinal direction becomes higher and higher, showing a significant anisotropy. In other words, the embodiment of the present application utilizes the physical drafting effect of the rotating object on the jet flow to achieve the purpose of controlling the fiber arrangement direction.
Corresponding to the above embodiments, the present application also provides a method for using an anisotropic triboelectric nanogenerator, the method comprising: when the relative angles of the first friction layer 112 and the second friction layer 122 are different, the electrical signals output between the first electrode layer 111 and the second electrode layer 121 are different, and different information is represented by the different electrical signals output between the first electrode layer 111 and the second electrode layer 121.
The angle sensor provided by the embodiment of the application is realized by relying on the anisotropic triboelectric nano generator.
Fig. 6 is a schematic structural diagram of an angle sensor based on a triboelectric nanogenerator according to an embodiment of the present application, where fig. 6< i > is a front view of the angle sensor, and fig. 6< ii > is a side view of the angle sensor, as shown in fig. 6, the angle sensor 600 includes a first rotating disk 610 and a second rotating disk 620.
A first turntable 610, said first turntable 610 comprising a first angle sensor friction layer 611 and a first angle sensor electrode layer 612, said first angle sensor friction layer 611 being an anisotropic nanofiber film material;
a second rotating disk 620, wherein the second rotating disk 620 comprises a second angle sensor friction layer 621 and a second angle sensor electrode layer 622, and the second angle sensor friction layer 621 is made of an anisotropic nanofiber film material;
the first carousel 610 and the second carousel 620 are configured to: the first turntable 610 and the second turntable 620 are relatively rotatable, and when the first turntable 610 and the second turntable 620 are relatively rotated, the first angle sensor friction layer 611 and the second angle sensor friction layer 621 rub against each other, and a potential difference is generated between the first angle sensor electrode layer 612 and the second angle sensor electrode layer 622.
In an alternative embodiment, the first turntable 610 and the second turntable 620 are disposed in parallel, and the first turntable 610 and the second turntable 620 rotate along an axis perpendicular to a plane on which the first turntable 610 or the second turntable 620 is disposed.
In an alternative embodiment, the first rotating disk 610 and/or the second rotating disk 620 are circular, and the axis passes through a center point of the first rotating disk 610 and/or the second rotating disk 620.
In the embodiment of the present application, the first rotating disk 610 and the second rotating disk 620 are respectively equivalent to a first friction unit and a second friction unit of an anisotropic triboelectric nano-generator, and when the relative angles of the nanofibers in the first angle sensor friction layer 611 and the second angle sensor friction layer 621 are different, the output electrical signals are different, and based on this principle, the change of the relative angles of the first rotating disk 610 and the second rotating disk 620 can be embodied by detecting the change of the output electrical signals, thereby manufacturing the angle sensor.
When the angle sensor 600 rotates, the contact area and pressure of the first rotating disk 610 and the second rotating disk 620 are kept constant, and the short-circuit current is only affected by the effective contact area of the nanofibers between the first angle sensor friction layer 611 and the second angle sensor friction layer 621.
In the anisotropic nanofiber membrane material, since there is a gap between adjacent fibers, when two different anisotropic nanofiber membranes are parallel to each other, the effective contact area of the nanofibers is minimal and the output current signal is minimal. As the contact angle increases, the effective contact area increases, and the output current signal also increases (see fig. 2).
In order to convert the electrical signals output by the first angle sensor electrode layer 612 and the second angle sensor electrode layer 622 into angle information, the sensor provided by the embodiment of the present application further includes a detection unit and a calculation unit (not shown in the figure).
The detection unit is configured to detect an electrical signal output between the first angle sensor electrode layer 612 and the second angle sensor electrode layer 622;
the calculating unit is used for determining the relative rotation angle of the first rotating disk 610 and the second rotating disk 620 according to the electric signal.
That is to say, the embodiment of the application utilizes the characteristics of different electrical signals output by different relative angles of nanofibers in two friction layers of the anisotropic triboelectric nanogenerator to prepare an angle sensor, thereby realizing the application of the anisotropic triboelectric nanogenerator in an information layer.
Fig. 7 is a schematic flow chart of a method for manufacturing an angle sensor based on a triboelectric nanogenerator according to an embodiment of the present application, and as shown in fig. 7, the method mainly includes the following steps.
Step S710: the anisotropic nanofiber membrane material is prepared by adopting an electrostatic spinning method.
In an alternative embodiment, the preparing the anisotropic nanofiber film material by using the electrospinning method specifically includes: preparing an electrostatic spinning solution; and (3) placing the electrostatic spinning solution in a spraying device, and spinning on the surface of a rotating roller by using an electrostatic spinning method to obtain the anisotropic nanofiber membrane material.
Step S720: and assembling the anisotropic nanofiber membrane material serving as a first angle sensor friction layer and a second angle sensor friction layer of an angle sensor to obtain the anisotropic triboelectric nano generator.
In an alternative embodiment, the method further comprises adjusting the degree of order of the nanofibers in the anisotropic nanofiber film material by adjusting the rotational speed of the drum.
In an alternative embodiment, the surface of the roller is an aluminum foil, and the anisotropic nanofiber membrane material is spun on the surface of the aluminum foil.
For brevity, the manufacturing method of the angle sensor based on the anisotropic triboelectric nanogenerator provided by the embodiment of the application may refer to the manufacturing method of the anisotropic triboelectric nanogenerator, and the working principle and the specific content thereof are not described herein again.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The same and similar parts in the various embodiments in this specification may be referred to each other. Especially, for the terminal embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant points can be referred to the description in the method embodiment.
The above-described embodiments of the present application do not limit the scope of the present application.
Claims (9)
1. An angle sensor based on anisotropic triboelectric nanogenerators, comprising: the device comprises a first rotating disc, a second rotating disc, a detection unit and a calculation unit;
the first rotating disc comprises a first angle sensor friction layer and a first angle sensor electrode layer, and the first angle sensor friction layer is made of an anisotropic nanofiber film material;
the second turntable comprises a second angle sensor friction layer and a second angle sensor electrode layer, and the second angle sensor friction layer is made of an anisotropic nanofiber film material;
the first carousel and the second carousel are configured to: the first rotating disk and the second rotating disk can rotate relatively, when the first rotating disk and the second rotating disk rotate relatively, the first angle sensor friction layer and the second angle sensor friction layer rub against each other, and a potential difference is generated between the first angle sensor electrode layer and the second angle sensor electrode layer;
the detection unit is used for detecting an electric signal output between the first angle sensor electrode layer and the second angle sensor electrode layer;
and the calculating unit is used for determining the relative rotation angle of the first rotating disc and the second rotating disc according to the electric signal.
2. The angle sensor of claim 1, wherein the first rotating disk and the second rotating disk are arranged in parallel, and the first rotating disk and the second rotating disk rotate along an axis perpendicular to a plane on which the first rotating disk or the second rotating disk is located.
3. The angle sensor of claim 2, wherein the first and/or second rotating discs are circular, and the axis passes through a center point of the first and/or second rotating discs.
4. The angle sensor of claim 1, wherein a relative angle of the nanofibers in the first angle sensor friction layer and the second angle sensor friction layer is 0 ° when in an initial position.
5. The angle sensor of claim 1, wherein the first angle sensor friction layer is a polyvinylidene fluoride nanofiber membrane and the second angle sensor friction layer is a nylon nanofiber membrane.
6. A method for manufacturing an angle sensor based on an anisotropic triboelectric nanogenerator, comprising:
preparing an anisotropic nanofiber film material by adopting an electrostatic spinning method;
assembling the anisotropic nano fiber film material as a first angle sensor friction layer and a second angle sensor friction layer of the angle sensor of any one of claims 1 to 5 to obtain the anisotropic triboelectric nano generator.
7. The method according to claim 6, wherein the preparing the anisotropic nanofiber film material by the electrospinning method specifically comprises:
preparing an electrostatic spinning solution;
and (3) placing the electrostatic spinning solution in a spraying device, and spinning on the surface of a rotating roller by using an electrostatic spinning method to obtain the anisotropic nanofiber membrane material.
8. The method of claim 7, further comprising:
and adjusting the order degree of the nano fibers in the anisotropic nano fiber film material by adjusting the rotating speed of the roller.
9. The method of claim 7, wherein the surface of the drum is an aluminum foil, and the anisotropic nanofiber membrane material is spun on the surface of the aluminum foil.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022151542A1 (en) * | 2021-01-12 | 2022-07-21 | 深圳大学 | Friction nano-generator and manufacturing method, self-powered sensing system and measurement method for angle of joint |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102731949A (en) * | 2012-05-29 | 2012-10-17 | 复旦大学 | Highly oriented carbon nano-tube/polymer composite film, and preparation method and application thereof |
| CN104762704A (en) * | 2015-03-19 | 2015-07-08 | 上海工程技术大学 | Novel nano electrostatic frictional spinning device |
| KR20170139268A (en) * | 2016-06-09 | 2017-12-19 | 연세대학교 산학협력단 | Method of direct conversion for generating neurons from somatic cells using triboelectricity |
| CN110067082A (en) * | 2019-03-14 | 2019-07-30 | 内蒙古科技大学 | A kind of nano generator micron order frictional layer and preparation method thereof |
-
2020
- 2020-09-21 CN CN202010992307.XA patent/CN112134482A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102731949A (en) * | 2012-05-29 | 2012-10-17 | 复旦大学 | Highly oriented carbon nano-tube/polymer composite film, and preparation method and application thereof |
| CN104762704A (en) * | 2015-03-19 | 2015-07-08 | 上海工程技术大学 | Novel nano electrostatic frictional spinning device |
| KR20170139268A (en) * | 2016-06-09 | 2017-12-19 | 연세대학교 산학협력단 | Method of direct conversion for generating neurons from somatic cells using triboelectricity |
| CN110067082A (en) * | 2019-03-14 | 2019-07-30 | 内蒙古科技大学 | A kind of nano generator micron order frictional layer and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| XIAO-XIONG WANG: "Anisotropic nanogenerator for anticounterfeiting and information encrypted transmission", 《NANO ENERGY》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022151542A1 (en) * | 2021-01-12 | 2022-07-21 | 深圳大学 | Friction nano-generator and manufacturing method, self-powered sensing system and measurement method for angle of joint |
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