CN106375913B - A kind of black phosphorus vibrating diaphragm microphone - Google Patents
A kind of black phosphorus vibrating diaphragm microphone Download PDFInfo
- Publication number
- CN106375913B CN106375913B CN201610819980.7A CN201610819980A CN106375913B CN 106375913 B CN106375913 B CN 106375913B CN 201610819980 A CN201610819980 A CN 201610819980A CN 106375913 B CN106375913 B CN 106375913B
- Authority
- CN
- China
- Prior art keywords
- vibrating diaphragm
- microphone
- black phosphorus
- power supply
- acoustic
- 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
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000010410 layer Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000002356 single layer Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 230000001052 transient effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
- H04R17/02—Microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
- H04R2307/023—Diaphragms comprising ceramic-like materials, e.g. pure ceramic, glass, boride, nitride, carbide, mica and carbon materials
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Abstract
The present invention proposes a kind of microphone, comprising: vibrating diaphragm (1), for carrying out acoustic-electric conversion；At least two electrodes (2), are fixedly connected with vibrating diaphragm, for vibrating diaphragm power supply and conducted signal；Power supply and amplifying unit (3), for powering for vibrating diaphragm and signal being amplified and exported；(4) are electrically connected between power supply and amplifying unit (3) and electrode (2), be characterized in that: vibrating diaphragm (1) is made of black phosphorus material；Larger promotion can be obtained in the more existing microphone of the electroacoustic properties such as sensitivity, frequency response, the transient response of microphone of the invention.
Description
Technical field
The invention belongs to microphone part field, in particular to a kind of black phosphorus vibrating diaphragm microphone.
Background technique
Its material of the diaphragm of microphone in the prior art usually selects high molecular material, the macromolecule material with the coat of metal
Material, metal etc., are limited by material, and microphone performance is still unable to satisfy increasingly harsh use needs sometimes.
Summary of the invention
In order to overcome the drawbacks of the prior art, the present invention proposes a kind of microphone with vibrating diaphragm made of black phosphorus, the biography
Larger promotion can be obtained in the more existing microphone of the electroacoustic properties such as sensitivity, frequency response, the transient response of sound device.
A kind of microphone is provided, comprising: vibrating diaphragm, for carrying out acoustic-electric conversion；At least two electrodes, with the fixed company of vibrating diaphragm
It connects, for vibrating diaphragm power supply and conducted signal；Power supply and amplifying unit, for amplifying for vibrating diaphragm power supply and to signal and defeated
Out；It is electrically connected between power supply and amplifying unit and electrode, be characterized in that: vibrating diaphragm is made of black phosphorus material；Wherein, vibrating diaphragm is single layer
Black phosphorus structure or multilayer black phosphorus structure；Wherein, the black phosphorus structure is obtained using mechanical layer strip or other chemical methodes.
Further, black phosphorus vibrating diaphragm is vibrated with the variation of acoustic pressure, and resistance change rate has with acoustic pressure absolute value
Positive correlation, i.e., with the relationship of formula (a):
Wherein,For the change rate of the resistance of black phosphorus vibrating diaphragm, p is acoustic pressure；Acoustic-electric conversion can be carried out simultaneously according to formula (a)
The voltage changed or current signal are exported to realize microphone function.
Further, conducting wire connection, printed circuit connection or other electric connection modes are electrically connected as.
It is proposed a kind of mobile phone, a kind of computer, a kind of earphone, including above-mentioned microphone.
Detailed description of the invention
Fig. 1 is the electrical connection schematic diagram of black phosphorus vibrating diaphragm microphone of the invention
Specific embodiment
In conjunction with attached drawing, black phosphorus vibrating diaphragm microphone of the invention is described in detail.Shown in attached drawing 1, black phosphorus of the invention
Vibrating diaphragm microphone includes: single layer black phosphorus film as vibrating diaphragm 1, and for carrying out acoustic-electric conversion, which can be used machine
Tool layer strip or other chemical methodes obtain；At least two electrodes 2, are fixedly connected with vibrating diaphragm, for powering and conducting to vibrating diaphragm
Signal；Power supply and amplifying unit 3, for powering for vibrating diaphragm and signal being amplified and exported；Power supply and amplifying unit 3 and electricity
There is electrical connection 4 between pole 2.
The working principle of microphone of the invention is that black phosphorus vibrating diaphragm 1 is vibrated with the variation of acoustic pressure, resistance variations
Rate and acoustic pressure absolute value have positive correlation, i.e., with the relationship of formula (1):
Wherein,For the change rate of the resistance of black phosphorus vibrating diaphragm 1, p is acoustic pressure.Black phosphorus vibrating diaphragm 1 is set to this hair as a result,
After bright microphone circuit, acoustic-electric conversion can be carried out and export the voltage changed or current signal to realize microphone
Function.
As a further improvement of the present invention, wherein vibrating diaphragm 1 includes multilayer black phosphorus structure；Electrical connection 4 for conducting wire connection,
Printed circuit connection or other electric connection modes.
Microphone of the invention can be used for mobile phone, tablet computer, computer, earphone and other portable electronic products
In.
Claims (5)
1. a kind of microphone, comprising: vibrating diaphragm (1), for carrying out acoustic-electric conversion；At least two electrodes (2), with the fixed company of vibrating diaphragm
It connects, it is positioned opposite to each other at vibrating diaphragm edge, for vibrating diaphragm power supply and conducted signal；Power supply and amplifying unit (3), for being vibration
Film powers and amplifies and export to signal；(4) are electrically connected between power supply and amplifying unit (3) and electrode (2), feature exists
In: vibrating diaphragm (1) is made of black phosphorus material；Vibrating diaphragm (1) is single-layer or multi-layer black phosphorus structure；The black phosphorus structure uses mechanical layer
Strip or other chemical methodes obtain；Black phosphorus vibrating diaphragm (1) is vibrated with the variation of acoustic pressure, and resistance change rate is exhausted with acoustic pressure
There is positive correlation to value, i.e., with the relationship of formula (a):
Wherein,For the change rate of the resistance of black phosphorus vibrating diaphragm (1), p is acoustic pressure；Acoustic-electric conversion and defeated can be carried out according to formula (a)
The voltage or current signal changed out is to realize microphone function.
2. microphone as described in claim 1, wherein electrical connection (4) is conducting wire connection, printed circuit connects or other are electrically connected
Connect mode.
3. a kind of mobile phone, including such as microphone claimed in claims 1-2.
4. a kind of computer, including such as microphone claimed in claims 1-2.
5. a kind of earphone, including such as microphone claimed in claims 1-2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610819980.7A CN106375913B (en) | 2016-09-13 | 2016-09-13 | A kind of black phosphorus vibrating diaphragm microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610819980.7A CN106375913B (en) | 2016-09-13 | 2016-09-13 | A kind of black phosphorus vibrating diaphragm microphone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106375913A CN106375913A (en) | 2017-02-01 |
| CN106375913B true CN106375913B (en) | 2019-07-12 |
Family
ID=57896795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610819980.7A Active CN106375913B (en) | 2016-09-13 | 2016-09-13 | A kind of black phosphorus vibrating diaphragm microphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106375913B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS557752B2 (en) * | 1974-04-25 | 1980-02-28 | ||
| JP2011130401A (en) * | 2009-12-21 | 2011-06-30 | Bifristec Kk | Paint for acoustic equipment |
| CN203327227U (en) * | 2013-07-10 | 2013-12-04 | 美特科技(苏州)有限公司 | Composite diaphragm structure |
| CN103897621A (en) * | 2012-12-27 | 2014-07-02 | 第一毛织株式会社 | Adhesive film, adhesive composition for the same, and display apparatus including the same |
| CN203933934U (en) * | 2014-04-29 | 2014-11-05 | 福建省辉锐材料科技有限公司 | A kind of vibrating diaphragm and loud speaker |
-
2016
- 2016-09-13 CN CN201610819980.7A patent/CN106375913B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS557752B2 (en) * | 1974-04-25 | 1980-02-28 | ||
| JP2011130401A (en) * | 2009-12-21 | 2011-06-30 | Bifristec Kk | Paint for acoustic equipment |
| CN103897621A (en) * | 2012-12-27 | 2014-07-02 | 第一毛织株式会社 | Adhesive film, adhesive composition for the same, and display apparatus including the same |
| CN203327227U (en) * | 2013-07-10 | 2013-12-04 | 美特科技(苏州)有限公司 | Composite diaphragm structure |
| CN203933934U (en) * | 2014-04-29 | 2014-11-05 | 福建省辉锐材料科技有限公司 | A kind of vibrating diaphragm and loud speaker |
Non-Patent Citations (1)
| Title |
|---|
| 《二维黑磷的结构、制备和性能》;袁振洲，刘丹敏，田楠，张国庆，张永哲;《化学学报》;20160615;第488-497页 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106375913A (en) | 2017-02-01 |
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| GR01 | Patent grant |