CN201976244U - Corrosion resistant diaphragm of capacitance type testing microphone - Google Patents
Corrosion resistant diaphragm of capacitance type testing microphone Download PDFInfo
- Publication number
- CN201976244U CN201976244U CN2010206230911U CN201020623091U CN201976244U CN 201976244 U CN201976244 U CN 201976244U CN 2010206230911 U CN2010206230911 U CN 2010206230911U CN 201020623091 U CN201020623091 U CN 201020623091U CN 201976244 U CN201976244 U CN 201976244U
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- Prior art keywords
- diaphragm
- corrosion resistant
- microphone
- capacitance type
- corrosion
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- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a corrosion resistant diaphragm of a capacitance type testing microphone. The corrosion resistant diaphragm comprises a diaphragm (1) which is installed in a capacitance type testing microphone frame, wherein the diaphragm (1) is a nickel membrane with the thickness being 3mum, the outer surface of the diaphragm (1) is provided with a corrosion resistant protective layer (2), and polytetrafluoroethylene materials with the thickness being 2-3mum are sprayed on the outer surface of the diaphragm (1) to form the corrosion resistant protective layer (2). The service life of the corrosion resistant diaphragm of the capacitance type testing microphone can be prolonged, and the utility model is especially suitable for a diaphragm of an outdoor capacitance type testing microphone.
Description
Technical field
The utility model relates to field of electronics, is specifically related to the condenser microphone field, particularly a kind of corrosion-resistant electric capacity diaphragm of microphone.
Background technology
The environment noise monitoring net is very fast in urban environment noise monitoring development at present, and a pith of environment noise monitoring net is outdoor round-the-clock microphone measuring unit, the vibrating diaphragm of condenser microphone wherein is subjected to the etch of acid rain in the atmosphere easily in round-the-clock atmospheric environment, general about 1 year of its life-span, some place is shorter, had a strong impact on the operation of environment noise monitoring net like this, it is higher to change the condenser microphone cost.
Summary of the invention
The purpose of this utility model is to overcome the above-mentioned deficiency of prior art and a kind of corrosion-resistant electric capacity diaphragm of microphone is provided, and it can prolong the useful life of condenser microphone vibrating diaphragm.
The technical solution of the utility model is: a kind of corrosion-resistant electric capacity diaphragm of microphone, and it comprises the vibrating diaphragm that is installed in the condenser microphone framework, the outer surface of vibrating diaphragm is provided with corrosion-resistant protective layer.
The utility model further technical scheme is: described vibrating diaphragm is the thick nickel film of 3um.
The also further technical scheme of the utility model is: described corrosion-resistant protective layer is the thick polytetrafluoroethylene floor of 2um～3um.
The utility model compared with prior art has following characteristics:
It is easy that the utility model is manufactured, and cost is low, can prolong the useful life of the diaphragm of microphone in atmospheric environment significantly.
Below in conjunction with the drawings and specific embodiments detailed structure of the present utility model is further described.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Embodiment
As shown in Figure 1: a kind of corrosion resistant condenser type measuring microphone vibrating diaphragm; it comprises the vibrating diaphragm 1 that is installed in the condenser type measuring microphone framework; vibrating diaphragm 1 is the thick nickel film of 3um; the outer surface of vibrating diaphragm 1 also is provided with corrosion-resistant protective layer 2; corrosion-resistant protective layer 2 is the thick polytetrafluoroethylene floor of 2um～3um, and this polytetrafluoroethylene floor is to form by the outer surface spraying resistant material (being polytetrafluoroethylene) to vibrating diaphragm 1.
The utility model is not limited to above-mentioned concrete structure, so long as the condenser type measuring microphone vibrating diaphragm that also is provided with corrosion-resistant protective layer 2 at the outer surface of vibrating diaphragm 1 just drops within the protection range of the present utility model.
Claims (3)
1. corrosion-resistant electric capacity diaphragm of microphone, it comprises the vibrating diaphragm (1) that is installed in the condenser microphone framework, it is characterized in that; The outer surface of vibrating diaphragm (1) is provided with corrosion-resistant protective layer (2).
2. the corrosion-resistant electric capacity diaphragm of microphone according to claim 1 is characterized in that: described vibrating diaphragm (1) is the thick nickel film of 3um.
3. the corrosion-resistant electric capacity diaphragm of microphone according to claim 1 and 2 is characterized in that: described corrosion-resistant protective layer (2) is the thick polytetrafluoroethylene floor of 2um～3um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206230911U CN201976244U (en) | 2010-11-20 | 2010-11-20 | Corrosion resistant diaphragm of capacitance type testing microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206230911U CN201976244U (en) | 2010-11-20 | 2010-11-20 | Corrosion resistant diaphragm of capacitance type testing microphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201976244U true CN201976244U (en) | 2011-09-14 |
Family
ID=44581342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206230911U Expired - Fee Related CN201976244U (en) | 2010-11-20 | 2010-11-20 | Corrosion resistant diaphragm of capacitance type testing microphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201976244U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165052A (en) * | 2013-05-17 | 2014-11-26 | 贵州航天凯山石油仪器有限公司 | Method for improving corrosion resistance of microphone |
| CN108900958A (en) * | 2018-08-27 | 2018-11-27 | 湖南声仪测控科技有限责任公司 | The strong microphone of functional reliability |
-
2010
- 2010-11-20 CN CN2010206230911U patent/CN201976244U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165052A (en) * | 2013-05-17 | 2014-11-26 | 贵州航天凯山石油仪器有限公司 | Method for improving corrosion resistance of microphone |
| CN108900958A (en) * | 2018-08-27 | 2018-11-27 | 湖南声仪测控科技有限责任公司 | The strong microphone of functional reliability |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20141120 |
|
| EXPY | Termination of patent right or utility model |