CN204014066U - A kind of microphone test macro - Google Patents
A kind of microphone test macro Download PDFInfo
- Publication number
- CN204014066U CN204014066U CN201420356093.7U CN201420356093U CN204014066U CN 204014066 U CN204014066 U CN 204014066U CN 201420356093 U CN201420356093 U CN 201420356093U CN 204014066 U CN204014066 U CN 204014066U
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- CN
- China
- Prior art keywords
- microphone
- tested
- testing apparatus
- sound hole
- test macro
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- Expired - Fee Related
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- 238000012360 testing method Methods 0.000 title claims abstract description 63
- 239000008393 encapsulating agent Substances 0.000 claims abstract description 18
- 239000002390 adhesive tape Substances 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 2
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The utility model discloses a kind of microphone test macro, this test macro comprises microphone to be tested, testing apparatus and signal analyzer, microphone to be tested comprises microphone unit and encapsulant, and sound hole is set on microphone unit, and described encapsulant covers on sound hole.By the sealing of sound hole, play minimizing ambient noise and enter Mike's wind action, eliminate well the impact of ambient noise, thereby realize the test under high environment noise conditions, meet the needs of production scene test background noise completely.
Description
Technical field
The utility model relates to Electronic Testing Technology field, particularly a kind of microphone test macro.
Background technology
Along with the development of consumer electronics, more and more higher to the performance requirement of microphone products, require microphone before shipment, to test its background noise parameter.The background noise of microphone can be subject to the impact of ambient noise when measuring, conventionally the background noise of test microphone need to (ambient noise grade≤10dBA) carry out under very quiet environment, production site environment is noisy, noise grade is sensible normal to 70dBA, be not suitable for testing background noise, but in engineering practice, have demand at production line test background noise.
Utility model content
A kind of microphone test macro that the utility model provides, simple to operate, can solve the problem that causes being difficult to realizing the background noise test of microphone products due to the severe electromagnetic noise environment in workshop simultaneously.
To achieve these goals, the utility model microphone test macro is by the following technical solutions:
A microphone test macro, comprises microphone to be tested, testing apparatus and signal analyzer, and:
Described microphone to be tested comprises microphone unit and encapsulant, and sound hole is set on described microphone unit, and described encapsulant covers on described sound hole;
Described testing apparatus is connected with described microphone to be tested, and described testing apparatus comprises low noise power supply, noiselike signal amplifying device and earth terminal, and described testing apparatus is connected with the counter electrode of described microphone to be tested;
Described signal analyzer is connected with described testing apparatus, and the output signal of described testing apparatus is tested.
As a kind of preferred technical scheme, described microphone to be tested is a kind of in electret capacitor microphone or micro-electro-mechanical microphone.
As a kind of preferred technical scheme, described encapsulant is a kind of in adhesive tape or silica gel.
Microphone test macro of the present utility model, comprise microphone to be tested, testing apparatus and signal analyzer, by the place, Mike's sound of the wind hole to be tested, cover encapsulant, by the sealing of sound hole, thereby play minimizing ambient noise, enter Mike's wind action, eliminate well the impact of ambient noise, thereby realize the test under high environment noise conditions, meet the needs of production scene test background noise completely.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model microphone test macro.
Fig. 2 is the structural representation of the utility model microphone to be tested.
Fig. 3 is the vertical view of the utility model microphone to be tested.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, be microphone test macro provided by the utility model, comprise microphone 1 to be tested, testing apparatus 2 and signal analyzer 3; Testing apparatus 2 comprises low noise power supply, noiselike signal amplifying device and earth terminal, and described testing apparatus 2 is connected with the counter electrode of described microphone 1 to be tested, and the other end is connected with signal analyzer.First microphone 1 to be tested outputs signal to testing apparatus 2, and 2 pairs of output signals of testing apparatus are amplified processing, then the signal after processing is exported to signal analyzer, and described signal analyzer carries out test analysis to signal again.
As shown in Figures 2 and 3, described microphone 1 to be tested comprises microphone unit 11 and encapsulant 13, and sound hole 12 is set on microphone unit, and encapsulant 13 covers on described sound hole 12.Encapsulant 13 can play sealing function to sound hole 12, thereby can reduce ambient noise and enter into microphone unit 11 by sound hole 12, thereby eliminated well the impact of ambient noise on the test of microphone background noise, can realize the test under high environment noise conditions, meet the needs of production scene test background noise completely.
In experiment, we select white adhesive tape as encapsulant 13, choose the microphone products of Multiple Type as microphone unit 11, with white adhesive tape, cover the sound hole site of microphone products, sound hole is sealed, will be connected on testing apparatus with the microphone after white adhesive tape sealing, then testing apparatus is connected with signal analyzer, testing apparatus is processed the output signal to microphone to be tested, exports to signal analyzer.Microphone to be tested is placed on to the test of carrying out background noise under the noise of multiple grade, result proves:
At the sound hole place of microphone unit, cover white adhesive tape and seal as encapsulant, can, in ambient noise up to 85dBA in the situation that, still can be good at testing out the background noise of microphone.
In practice, encapsulant 13 can also be selected silica gel, the relative adhesive tape of silica gel is a kind of better encapsulant, can eliminate better the impact of ambient noise on the test of microphone background noise, can realize the test under higher environment noise conditions, more can meet the needs of production scene test background noise.
In engineering practice, microphone unit 11 can be electret capacitor microphone, also can be micro-electro-mechanical microphone, all can cover encapsulant by the place, sound hole at microphone unit, sound hole is sealed, reduce ambient noise and enter into microphone unit by sound hole, thereby eliminate the impact of ambient noise on the test of microphone background noise, can realize the test under high environment noise conditions, meet the needs of production scene test background noise completely.
In sum, the utility model discloses a kind of microphone test macro, this test macro comprises microphone to be tested, testing apparatus and signal analyzer, by covering encapsulant at place, Mike's sound of the wind hole, by the sealing of sound hole, play minimizing ambient noise and enter Mike's wind action, eliminate well the impact of ambient noise, thereby realize the test under high environment noise conditions, meet the needs of production scene test background noise completely.
These are only the utility model case study on implementation, be not limited to the utility model, as long as the equivalence that those of ordinary skills do according to the utility model institute disclosure is modified or changed, all should include in the protection range of recording in claims.
Claims (3)
1. a microphone test macro, comprises microphone to be tested, testing apparatus and signal analyzer, it is characterized in that:
Described microphone to be tested comprises microphone unit and encapsulant, and sound hole is set on described microphone unit, and described encapsulant covers on described sound hole;
Described testing apparatus is connected with described microphone to be tested, and described testing apparatus comprises low noise power supply, noiselike signal amplifying device and earth terminal, and described testing apparatus is connected with the counter electrode of described microphone to be tested;
Described signal analyzer is connected with described testing apparatus, and the output signal of described testing apparatus is tested.
2. microphone test macro according to claim 1, is characterized in that, described microphone to be tested is a kind of in electret capacitor microphone or micro-electro-mechanical microphone.
3. microphone test macro according to claim 1, is characterized in that, described encapsulant is a kind of in adhesive tape or silica gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420356093.7U CN204014066U (en) | 2014-06-30 | 2014-06-30 | A kind of microphone test macro |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420356093.7U CN204014066U (en) | 2014-06-30 | 2014-06-30 | A kind of microphone test macro |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204014066U true CN204014066U (en) | 2014-12-10 |
Family
ID=52054001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420356093.7U Expired - Fee Related CN204014066U (en) | 2014-06-30 | 2014-06-30 | A kind of microphone test macro |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204014066U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105142090A (en) * | 2015-08-24 | 2015-12-09 | 歌尔声学股份有限公司 | Method and system for determining ripple factor of power source for testing background noise |
| CN112437391A (en) * | 2020-12-09 | 2021-03-02 | 苏州思必驰信息科技有限公司 | Microphone testing method and system for open environment |
| CN112954574A (en) * | 2019-12-10 | 2021-06-11 | 北京沃东天骏信息技术有限公司 | Microphone tightness testing method and device |
| CN113242507A (en) * | 2021-06-16 | 2021-08-10 | 云茂互联智能科技(厦门)有限公司 | Method for quickly adjusting microphone gain and detecting microphone background noise |
-
2014
- 2014-06-30 CN CN201420356093.7U patent/CN204014066U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105142090A (en) * | 2015-08-24 | 2015-12-09 | 歌尔声学股份有限公司 | Method and system for determining ripple factor of power source for testing background noise |
| CN105142090B (en) * | 2015-08-24 | 2018-04-13 | 歌尔股份有限公司 | Determine the method and system of the ripple factor of background noise test power supply |
| CN112954574A (en) * | 2019-12-10 | 2021-06-11 | 北京沃东天骏信息技术有限公司 | Microphone tightness testing method and device |
| CN112437391A (en) * | 2020-12-09 | 2021-03-02 | 苏州思必驰信息科技有限公司 | Microphone testing method and system for open environment |
| CN112437391B (en) * | 2020-12-09 | 2022-02-18 | 思必驰科技股份有限公司 | Microphone testing method and system for open environment |
| CN113242507A (en) * | 2021-06-16 | 2021-08-10 | 云茂互联智能科技(厦门)有限公司 | Method for quickly adjusting microphone gain and detecting microphone background noise |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee before: Goertek Inc. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200616 Address after: 266104 room 103, 396 Songling Road, Laoshan District, Qingdao, Shandong Province Patentee after: Goer Microelectronics Co.,Ltd. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee before: GOERTEK Inc. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 |