CN106131755A - There is the microphone of Graphene vibrating diaphragm - Google Patents
There is the microphone of Graphene vibrating diaphragm Download PDFInfo
- Publication number
- CN106131755A CN106131755A CN201610592265.4A CN201610592265A CN106131755A CN 106131755 A CN106131755 A CN 106131755A CN 201610592265 A CN201610592265 A CN 201610592265A CN 106131755 A CN106131755 A CN 106131755A
- Authority
- CN
- China
- Prior art keywords
- vibrating diaphragm
- pole plate
- back pole
- microphone
- condenser microphone
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
- H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers
Abstract
A kind of condenser microphone with Graphene vibrating diaphragm, including Graphene vibrating diaphragm (M), there is the back pole plate (4) of through hole, it is separated by by dead ring (3) between vibrating diaphragm (M) and back pole plate (4), between vibrating diaphragm (M) and back pole plate (4), there is interval d, vibrating diaphragm (M) and back pole plate (4) are connected to power supply and amplifier module (6) by conductive component (5) respectively, thus vibrating diaphragm (M) constitutes capacitor with back pole plate (4), different spacing d for the vibrating diaphragm with back pole plate forming capacitance structure, have employed the different means that power up to realize microphone function, solve the technical problem how making the microphone with Graphene vibrating diaphragm normally work.The electroacoustic properties such as the sensitivity of the microphone of the present invention, frequency response, transient response are compared conventional condenser microphone and are all highly improved.
Description
Technical field
The invention belongs to microphone field, particularly to a kind of microphone with Graphene vibrating diaphragm.
Background technology
Microphone includes condenser type, moving-coil type, piezoelectric type etc., and wherein condenser microphone is special with its most outstanding electroacoustic
Property is widely used, and microphone performance is had a major impact by vibrating diaphragm as the significant components of condenser microphone.Existing
There is its material of the diaphragm of microphone in technology generally to select and there are the macromolecular material of the coat of metal, metal etc., limited by material
System, microphone performance the most still cannot meet the most harsh use needs.
Summary of the invention
In order to overcome the deficiencies in the prior art, the present invention proposes a kind of microphone with Graphene vibrating diaphragm, for formation
The vibrating diaphragm of capacitance structure and the different spacing of back pole plate, have employed the different means that power up to realize microphone function, solve
How to make the technical problem that the microphone with Graphene vibrating diaphragm normally works.The sensitivity of the microphone of the present invention, frequency are rung
Should, the electroacoustic property such as transient response compares conventional condenser microphone and is all highly improved.
A kind of condenser microphone with Graphene vibrating diaphragm is proposed, including Graphene vibrating diaphragm, the back pole plate with through hole,
Being separated by by dead ring between vibrating diaphragm and back pole plate, have interval d between vibrating diaphragm and back pole plate, vibrating diaphragm and back pole plate are respectively by leading
Electricity assembly is connected to power supply and amplifier module, thus vibrating diaphragm constitutes capacitor with back pole plate.
Further, when d≤10 nanometer, power supply and amplifier module apply low-voltage, institute at vibrating diaphragm with back pole plate two ends
The voltage applied is 2～10V.
Further, when d ＞ 10 nanometer, power supply and amplifier module apply high voltage, institute at vibrating diaphragm with back pole plate two ends
The voltage applied is 100V magnitude.
Or, when d ＞ 10 nanometer, realize microphone function in electret mode, can be on vibrating diaphragm or back pole plate body
Resident electric charge, or resident electric charge in coating again after teflon coating on vibrating diaphragm or back pole plate.
Further, the microphone of the Graphene vibrating diaphragm of the present invention can be difference microphone array, spherical surface array, put down
Face battle array, a part for cylindrical array.
Accompanying drawing explanation
Fig. 1 is the Making programme figure of the grapheme material vibrating diaphragm of the present invention
Fig. 2 is the internal structure schematic diagram of the microphone comprising grapheme material vibrating diaphragm of the present invention
Detailed description of the invention
In conjunction with accompanying drawing, embodiments of the present invention are described in detail.Accompanying drawing 1 shows the Graphene vibrating diaphragm of the present invention
Making programme, first a metal nickel sheet 1 is provided, in metal nickel sheet 1 grow graphene film 2, utilize etching mode
Being removed by the mid portion of metal nickel sheet 1, obtain metallic nickel ring 1 ', metallic nickel ring 1 ' is combined as a whole with graphene film 2, by
This prepared Graphene vibrating diaphragm M.
Accompanying drawing 2 shows the internal structure of the condenser microphone including above-mentioned Graphene vibrating diaphragm M of the present invention, microphone
Including Graphene vibrating diaphragm M, the back pole plate 4 with through hole, it is separated by by dead ring 3 between vibrating diaphragm M and back pole plate 4, vibrating diaphragm M and backplane
There is between plate 4 interval d, vibrating diaphragm M and be connected to power supply and amplifier module 6 by conductive component 5 respectively with back pole plate 4, thus shake
Film M and back pole plate 4 constitute capacitor.
Wherein, when d is nanoscale, i.e. during the nanometer of d≤10, by power supply and amplifier module 6 at vibrating diaphragm M and back pole plate 4 liang
End applying low-voltage is to realize microphone function, and preferred voltage is 2～10V.
When d is bigger, i.e. during d ＞ 10 nanometer, power supply and amplifier module 6 apply high electricity at vibrating diaphragm M with back pole plate 4 two ends
Pressure is to realize microphone function, and preferred voltage is 100V magnitude.
Or, when d is bigger, i.e. during d ＞ 10 nanometer, in the way of electret, realize microphone function, wherein, can shake
Resident electric charge on the body of film M or back pole plate 4, or resident electricity in coating again after teflon coating on vibrating diaphragm or backplane
Lotus.
The microphone with Graphene vibrating diaphragm of the present invention is of many uses, can be used for constituting difference microphone array, spherical
Surface array, planar array, cylindrical array etc..
Claims (9)
1. there is a condenser microphone for Graphene vibrating diaphragm, including Graphene vibrating diaphragm (M), the back pole plate (4) with through hole,
It is separated by by dead ring (3) between vibrating diaphragm (M) and back pole plate (4), there is between vibrating diaphragm (M) and back pole plate (4) interval d, vibrating diaphragm (M)
It is connected to power and amplifier module (6) by conductive component (5) respectively with back pole plate (4), thus vibrating diaphragm (M) and back pole plate (4)
Constitute capacitor.
2. condenser microphone as claimed in claim 1, when d≤10 nanometer, by power supply and amplifier module (6) at vibrating diaphragm
(M) low-voltage is applied with back pole plate (4) two ends.
3. condenser microphone as claimed in claim 2, the voltage applied is 2～10V.
4. condenser microphone as claimed in claim 1, as d > 10 nanometer time, by power supply and amplifier module (6) at vibrating diaphragm (M)
High voltage is applied with back pole plate (4) two ends.
5. condenser microphone as claimed in claim 4, the voltage applied is 100V magnitude.
6. condenser microphone as claimed in claim 1, as d > 10 nanometer time, realize microphone function in electret mode.
7. condenser microphone as claimed in claim 6, resident electric charge on vibrating diaphragm (M) or back pole plate (4) body.
8. condenser microphone as claimed in claim 6, after the upper teflon coating of vibrating diaphragm (M) or back pole plate (4) again
Resident electric charge in coating.
9. the condenser microphone as described in claim 1-8, for difference microphone array, spherical surface array, planar array, circle
A part for post battle array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610592265.4A CN106131755A (en) | 2016-07-25 | 2016-07-25 | There is the microphone of Graphene vibrating diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610592265.4A CN106131755A (en) | 2016-07-25 | 2016-07-25 | There is the microphone of Graphene vibrating diaphragm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106131755A true CN106131755A (en) | 2016-11-16 |
Family
ID=57290469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610592265.4A Pending CN106131755A (en) | 2016-07-25 | 2016-07-25 | There is the microphone of Graphene vibrating diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106131755A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021248625A1 (en) * | 2020-06-08 | 2021-12-16 | 深圳市汉嵙新材料技术有限公司 | Vibrating diaphragm, sound production device, microphone and vibrating diaphragm manufacturing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003319491A (en) * | 2002-04-19 | 2003-11-07 | Sony Corp | Diaphragm and manufacturing method thereof, and speaker |
| CN101098569A (en) * | 2006-06-28 | 2008-01-02 | 潍坊歌尔电子有限公司 | Semiconductor microphone chip |
| CN104038877A (en) * | 2014-06-30 | 2014-09-10 | 山东共达电声股份有限公司 | Electret electrostatic loudspeaker |
| CN105323698A (en) * | 2014-08-05 | 2016-02-10 | 美特科技(苏州)有限公司 | Production method of vibrating diaphragm |
-
2016
- 2016-07-25 CN CN201610592265.4A patent/CN106131755A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003319491A (en) * | 2002-04-19 | 2003-11-07 | Sony Corp | Diaphragm and manufacturing method thereof, and speaker |
| CN101098569A (en) * | 2006-06-28 | 2008-01-02 | 潍坊歌尔电子有限公司 | Semiconductor microphone chip |
| CN104038877A (en) * | 2014-06-30 | 2014-09-10 | 山东共达电声股份有限公司 | Electret electrostatic loudspeaker |
| CN105323698A (en) * | 2014-08-05 | 2016-02-10 | 美特科技(苏州)有限公司 | Production method of vibrating diaphragm |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021248625A1 (en) * | 2020-06-08 | 2021-12-16 | 深圳市汉嵙新材料技术有限公司 | Vibrating diaphragm, sound production device, microphone and vibrating diaphragm manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161116 |
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| RJ01 | Rejection of invention patent application after publication |