CN106412778A - Microphone comprising black phosphorus material vibrating diaphragm - Google Patents
Microphone comprising black phosphorus material vibrating diaphragm Download PDFInfo
- Publication number
- CN106412778A CN106412778A CN201610819608.6A CN201610819608A CN106412778A CN 106412778 A CN106412778 A CN 106412778A CN 201610819608 A CN201610819608 A CN 201610819608A CN 106412778 A CN106412778 A CN 106412778A
- Authority
- CN
- China
- Prior art keywords
- microphone
- diaphragm
- vibrating diaphragm
- black phosphorus
- layer
- 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
Links
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 239000000463 material Substances 0.000 title claims abstract description 12
- 230000003321 amplification Effects 0.000 claims abstract description 8
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000001052 transient effect Effects 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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/08—Microphones
-
- 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
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)
Abstract
The invention provides a microphone comprising a black phosphorus material vibrating diaphragm. The microphone comprises a vibrating diaphragm (1) used for carrying out acoustic-electric conversion; at least two electrodes (2) fixedly connected with the vibrating diaphragm and used for powering the vibrating diaphragm and transferring signals; and a power supply and amplification unit (3) used for powering the vibrating diaphragm and amplifying and outputting the signals; an electric connection (4) is formed between the power supply and amplification unit (3) and the electrodes (2), wherein the vibrating diaphragm (1) comprises a black phosphorus layer (11) and an elastic board (12), and the black phosphorus layer (11) is attached to the elastic board (12); and the sensitivity, the frequency response, the instantaneous response and other electroacoustic characteristics of the microphone disclosed by the invention can be greatly improved compared with those of the existing microphones.
Description
Technical Field
The invention belongs to the field of microphone parts, and particularly relates to a microphone comprising a diaphragm made of black phosphorus materials.
Background
The materials of the microphone diaphragm in the prior art are usually selected from high polymer materials, high polymer materials with metal coatings, metals and the like, and are limited by the materials, so that the performance of the microphone sometimes still cannot meet increasingly severe use requirements.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a microphone comprising a diaphragm made of black phosphorus material, and the electroacoustic characteristics of the microphone, such as sensitivity, frequency response, transient response and the like, can be greatly improved compared with the conventional microphone.
A microphone with a diaphragm made of black phosphorus material is provided, which comprises: the vibrating diaphragm is used for performing sound-electricity conversion; the at least two electrodes are fixedly connected with the vibrating diaphragm and used for supplying power to the vibrating diaphragm and conducting signals; the power supply and amplification unit is used for supplying power to the vibrating diaphragm, amplifying and outputting the signal; the power supply and amplification unit is electrically connected with the electrodes; the vibrating diaphragm comprises a black phosphorus layer and an elastic plate, wherein the black phosphorus layer is attached to the elastic plate; the diaphragm comprises at least one layer of black phosphorus structure, and the black phosphorus structure is obtained by using a mechanical layer stripping method or other chemical methods.
Wherein, the vibrating diaphragm vibrates along with the change of acoustic pressure, and when the vibrating diaphragm moved upwards, the density of black phosphorus layer became big, and when the vibrating diaphragm moved downwards, the density of black phosphorus layer became little its resistance change rate and acoustic pressure absolute value have positive correlation, have the relation of formula (a) promptly:
wherein,the change rate of the resistance of the black phosphorus diaphragm is shown, and p is sound pressure; according to the formula (a), the sound-electricity conversion can be carried out and the changed voltage or current signal can be output so as to realize the function of the microphone.
Further, the electrical connection is a wire connection, a printed circuit connection, or other electrical connection.
A mobile phone, a computer and an earphone are provided, which comprise the microphone.
Drawings
FIG. 1 is an electrical schematic diagram of a microphone including a diaphragm of black phosphor material according to the present invention
Detailed Description
The microphone including the diaphragm of the black phosphor material according to the present invention will be described in detail with reference to the accompanying drawings. As shown in fig. 1, the microphone including the diaphragm of black phosphor material according to the present invention includes: the vibrating diaphragm 1 is used for performing sound-electricity conversion; the at least two electrodes 2 are fixedly connected with the vibrating diaphragm and used for supplying power to the vibrating diaphragm and conducting signals; the power supply and amplification unit 3 is used for supplying power to the vibrating diaphragm, amplifying and outputting the signal; the power supply and amplification unit 3 is electrically connected with the electrode 2 through an electric connection 4; the diaphragm 1 includes a black phosphor layer 11 and an elastic plate 12, and the black phosphor layer 11 is attached to the elastic plate 12. Wherein, the black phosphorus layer can be obtained by using a mechanical layer stripping method or other chemical methods.
The working principle of the microphone of the invention is that the diaphragm 1 vibrates along with the change of sound pressure, when the diaphragm 1 moves upwards, the density of the black phosphorus layer 11 becomes large, and when the diaphragm 1 moves downwards, the density of the black phosphorus layer 11 becomes small, so that the resistance change rate and the sound pressure have positive correlation, namely the relationship of the formula (1):
wherein,the rate of change in the resistance of the black phosphor diaphragm 1 is shown, and p is the sound pressure. Therefore, after the diaphragm 1 is arranged in the microphone circuit of the invention, the sound-electricity conversion can be carried out and the changed voltage or current signal can be output, thereby realizing the microphone function.
As a further improvement of the present invention, wherein the diaphragm 1 includes at least one layer of black phosphorus structure; the electrical connection 4 is a wire connection, a printed circuit connection or other electrical connection means.
The microphone of the invention can be used in mobile phones, tablet computers, earphones and other portable electronic products.
Claims (8)
1. A microphone comprising a diaphragm of black phosphor material, comprising: the vibrating diaphragm (1) is used for performing sound-electricity conversion; the at least two electrodes (2) are fixedly connected with the vibrating diaphragm and used for supplying power to the vibrating diaphragm and conducting signals; the power supply and amplification unit (3) is used for supplying power to the vibrating diaphragm, amplifying and outputting the signal; an electric connection (4) is arranged between the power supply and amplification unit (3) and the electrode (2); the vibrating diaphragm (1) comprises a black phosphorus layer (11) and an elastic plate (12), wherein the black phosphorus layer (11) is attached to the elastic plate (12).
2. Microphone according to claim 1, characterized in that the diaphragm (1) comprises at least one layer of a black phosphor structure.
3. The microphone of claim 2 wherein: the black phosphorus structure is obtained by using a mechanical layer stripping method or other chemical methods.
4. The microphone according to claim 1, wherein the diaphragm (1) vibrates with a change in sound pressure, and when the diaphragm (1) moves upward, the density of the black phosphorus layer (11) becomes large, and when the diaphragm (1) moves downward, the density of the black phosphorus layer (11) becomes small, and the rate of change in resistance thereof has a positive correlation with the absolute value of sound pressure, that is, a relationship of the formula (a):
wherein,the change rate of the resistance of the black phosphorus diaphragm (1) is shown, and p is sound pressure; according to the formula (a), the sound-electricity conversion can be carried out and the changed voltage or current signal can be output so as to realize the function of the microphone.
5. The microphone of claim 1, wherein the electrical connections (4) are wire connections, printed circuit connections or other electrical connections.
6. A handset comprising a microphone according to claims 1-5.
7. A computer comprising a microphone according to claims 1-5.
8. An earphone comprising a microphone according to claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610819608.6A CN106412778A (en) | 2016-09-13 | 2016-09-13 | Microphone comprising black phosphorus material vibrating diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610819608.6A CN106412778A (en) | 2016-09-13 | 2016-09-13 | Microphone comprising black phosphorus material vibrating diaphragm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106412778A true CN106412778A (en) | 2017-02-15 |
Family
ID=57999381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610819608.6A Pending CN106412778A (en) | 2016-09-13 | 2016-09-13 | Microphone comprising black phosphorus material vibrating diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106412778A (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 |
| CN103781013A (en) * | 2013-11-25 | 2014-05-07 | 美特科技(苏州)有限公司 | Vibrating diaphragm production method and application thereof |
| 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 CN201610819608.6A patent/CN106412778A/en active Pending
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 |
| CN203327227U (en) * | 2013-07-10 | 2013-12-04 | 美特科技(苏州)有限公司 | Composite diaphragm structure |
| CN103781013A (en) * | 2013-11-25 | 2014-05-07 | 美特科技(苏州)有限公司 | Vibrating diaphragm production method and application thereof |
| 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 |
|---|
| 袁振洲，刘丹敏，田楠，张国庆，张永哲: "《二维黑磷的结构、制备和性能》", 《化学学报》 * |
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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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170215 |
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| WD01 | Invention patent application deemed withdrawn after publication |