CN110045424A - A kind of graphene proximity sensor - Google Patents
A kind of graphene proximity sensor Download PDFInfo
- Publication number
- CN110045424A CN110045424A CN201910329105.4A CN201910329105A CN110045424A CN 110045424 A CN110045424 A CN 110045424A CN 201910329105 A CN201910329105 A CN 201910329105A CN 110045424 A CN110045424 A CN 110045424A
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- China
- Prior art keywords
- graphene
- layer
- proximity sensor
- based bottom
- transport layer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
- G01V3/082—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices operating with fields produced by spontaneous potentials, e.g. electrochemical or produced by telluric currents
Abstract
The present invention relates to a kind of graphene proximity sensors, belong to sensor detection field.The sensor is made of graphene transport layer, graphene receiving layer, the first graphene-based bottom, the second graphene-based bottom, insulating layer and encapsulated layer；The graphene transport layer is arranged on the first graphene-based bottom, and the graphene receiving layer is arranged on the second graphene-based bottom, and the insulating layer is arranged between graphene transport layer and the second graphene-based bottom, and the encapsulated layer, which is arranged, receives layer surface in graphene.The present invention realizes the proximity sensor with good flexibility using the unique flexible and good electric conductivity of graphene, so as to ordinatedly be applied in flexible electronic product.
Description
Technical field
The invention belongs to sensor detection fields, are related to a kind of graphene proximity sensor.
Background technique
Graphene has superior electrical conductivity, unique two-dimensional film material flexible as a kind of, is applied to flexibility
There is obviously advantage in sensor.Current electronic sensor is largely non-soft due to its structure and material cause
Property device, but with the development of wearable electronic, flexibility has become the characteristic that moment sensor is strongly pursued.
Proximity sensor is when the hand of people is close to electronic product, and electronic product produces certain inductive signal, from
And realize certain reaction.Proximity sensor is a kind of device with perception object proximity ability, it utilizes displacement sensor
There is sensitivity characteristic to close object to identify the close of object, and export respective switch signal, therefore, usually again close
Scales are close to switch.
Most proximity sensor is inflexible sensor currently on the market, can such as be worn in electronic product flexible
It wears in product that there are biggish restrictions, therefore, needs a kind of proximity sensor flexible, flexible electronic can be advantageously applied to
In product.
Summary of the invention
In view of this, realizing the soft of proximity sensor the purpose of the present invention is to provide a kind of graphene proximity sensor
Property, it is applied in flexible electronic product with being able to cooperate.
In order to achieve the above objectives, the invention provides the following technical scheme:
A kind of graphene proximity sensor, by graphene transport layer, graphene receiving layer, the first graphene-based bottom, second
Graphene-based bottom, insulating layer and encapsulated layer composition；
The graphene transport layer is arranged on the first graphene-based bottom, and the graphene receiving layer is arranged in the second graphite
On alkenyl bottom, the insulating layer is arranged between graphene transport layer and the second graphene-based bottom, and the encapsulated layer is arranged in stone
Black alkene receives layer surface.
Further, the indirect current stream in graphene transport layer, nearby generates alternating electric field.
Further, DC current is led in graphene receiving layer, under action of alternative electric field, generates induced current.
Further, in the case where close with/without object, electric field changes, so that the induced current detected can be sent out
Changing, characterizes the situation close with the presence or absence of object by faradic variation, leans on near-induction to realize.
The beneficial effects of the present invention are: the present invention is by coming using the unique flexible and good electric conductivity of graphene
The proximity sensor with good flexibility is realized, so as to fit applications in flexible electronic product.Specifically have the beneficial effect that
(1) for the present invention using graphene as conductive material, carrier mobility is high, is able to achieve high frequency proximity sensor；(2) this hair
The graphene of bright use has extraordinary stability, and the graphene proximity sensor of realization has very strong reliability.
Other advantages, target and feature of the invention will be illustrated in the following description to a certain extent, and
And to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, Huo Zheke
To be instructed from the practice of the present invention.Target of the invention and other advantages can be realized by following specification and
It obtains.
Detailed description of the invention
To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention is made below in conjunction with attached drawing excellent
The detailed description of choosing, in which:
Fig. 1 is the structure chart of graphene proximity sensor of the present invention；
Fig. 2 uses schematic diagram for graphene proximity sensor of the present invention.
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Other advantages and efficacy of the present invention can be easily understood for disclosed content.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from
Various modifications or alterations are carried out under spirit of the invention.It should be noted that diagram provided in following embodiment is only to show
Meaning mode illustrates basic conception of the invention, and in the absence of conflict, the feature in following embodiment and embodiment can phase
Mutually combination.
Wherein, the drawings are for illustrative purposes only and are merely schematic diagrams, rather than pictorial diagram, should not be understood as to this
The limitation of invention；Embodiment in order to better illustrate the present invention, the certain components of attached drawing have omission, zoom in or out, not
Represent the size of actual product；It will be understood by those skilled in the art that certain known features and its explanation may be omitted and be in attached drawing
It is understood that.
Referring to Fig. 1, being a kind of structure chart of graphene proximity sensor, which is passed by graphene
Defeated layer, graphene receiving layer, the first graphene-based bottom, the second graphene-based bottom, insulating layer and encapsulated layer composition；Graphene transmission
Layer is arranged on the first graphene-based bottom, and graphene receiving layer is arranged on the second graphene-based bottom, and insulating layer is arranged in graphite
Between alkene transport layer and the second graphene-based bottom, encapsulated layer, which is arranged, receives layer surface in graphene.
Wherein, indirect current stream in transport layer graphene, DC current is led in receiving layer graphene, and test receives graphene
Layer in induced current come realize solve sensor detection.
Embodiment: as shown in Fig. 2, being passed through alternating current in transport layer, direct current is passed through in receiving layer.In no outside
When conductor such as manpower etc. is close, due to electromagnetic induction principle, the electric current of a receiving layer graphene can be measured in ammeter A
Value A1.Have external conductor such as hand close to when, due to manpower close to will lead to transport layer graphene alternating current generation electromagnetic field
It changes, so that the induced current generated in receiving layer changes, to measured under another state in ammeter A
Current value A2, by comparing the difference of A1 and A2, to determine whether that there are the conductors such as manpower are close.
If this flexible sensor is applied in flexible wrist-watch by we, when do not have hand close to when, show that we do not carry out
Input operation can close screen power supplies at this time in order to save power consumption, close input module.When have hand close to when, show
We need to carry out input operation, receive induced electricity flow valuve A2 in ammeter at this time, then issue instruction, open input module
And screen power supplies.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of the technical program, should all be covered in the present invention
Scope of the claims in.
Claims (4)
1. a kind of graphene proximity sensor, which is characterized in that the sensor is by graphene transport layer, graphene receiving layer,
One graphene-based bottom, the second graphene-based bottom, insulating layer and encapsulated layer composition；
The graphene transport layer is arranged on the first graphene-based bottom, and the graphene receiving layer setting is graphene-based second
On bottom, the insulating layer is arranged between graphene transport layer and the second graphene-based bottom, and the encapsulated layer is arranged in graphene
Receive layer surface.
2. a kind of graphene proximity sensor according to claim 1, which is characterized in that lead in graphene transport layer and hand over
Galvanic electricity stream, nearby generates alternating electric field.
3. a kind of graphene proximity sensor according to claim 2, which is characterized in that lead in graphene receiving layer straight
Galvanic electricity stream generates induced current under action of alternative electric field.
4. a kind of graphene proximity sensor according to claim 3, which is characterized in that in the feelings close with/without object
Under condition, electric field changes, so that the induced current detected can change, characterized by faradic variation whether
There is a situation where that object is close, leans on near-induction to realize.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910329105.4A CN110045424A (en) | 2019-04-23 | 2019-04-23 | A kind of graphene proximity sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910329105.4A CN110045424A (en) | 2019-04-23 | 2019-04-23 | A kind of graphene proximity sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110045424A true CN110045424A (en) | 2019-07-23 |
Family
ID=67278787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910329105.4A Pending CN110045424A (en) | 2019-04-23 | 2019-04-23 | A kind of graphene proximity sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN110045424A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120063033A1 (en) * | 2010-09-11 | 2012-03-15 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetic field sensor with graphene sense layer and ferromagnetic biasing layer below the sense layer |
| CN106199041A (en) * | 2015-05-06 | 2016-12-07 | 成都凯天电子股份有限公司 | Non-chip-shaped inductance type revolution speed measuring is popped one's head in |
| CN107677198A (en) * | 2017-10-31 | 2018-02-09 | 深圳市柔纬联科技有限公司 | The self-driven closely position detector of electret |
| CN208752594U (en) * | 2018-11-06 | 2019-04-16 | 重庆石墨烯研究院有限公司 | A kind of graphene flexible and transparent input terminal |
-
2019
- 2019-04-23 CN CN201910329105.4A patent/CN110045424A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120063033A1 (en) * | 2010-09-11 | 2012-03-15 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetic field sensor with graphene sense layer and ferromagnetic biasing layer below the sense layer |
| CN106199041A (en) * | 2015-05-06 | 2016-12-07 | 成都凯天电子股份有限公司 | Non-chip-shaped inductance type revolution speed measuring is popped one's head in |
| CN107677198A (en) * | 2017-10-31 | 2018-02-09 | 深圳市柔纬联科技有限公司 | The self-driven closely position detector of electret |
| CN208752594U (en) * | 2018-11-06 | 2019-04-16 | 重庆石墨烯研究院有限公司 | A kind of graphene flexible and transparent input terminal |
Non-Patent Citations (1)
| Title |
|---|
| 裴涛，等: "《建筑电气控制技术》", 31 January 2010 * |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190723 |