CN205378221U - MEMS microphone accredited testing organization - Google Patents
MEMS microphone accredited testing organization Download PDFInfo
- Publication number
- CN205378221U CN205378221U CN201620053978.9U CN201620053978U CN205378221U CN 205378221 U CN205378221 U CN 205378221U CN 201620053978 U CN201620053978 U CN 201620053978U CN 205378221 U CN205378221 U CN 205378221U
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- test
- operatic tunes
- mems microphone
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- sound
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Abstract
The utility model discloses a MEMS microphone accredited testing organization, including the test operatic tunes, product test base and test needle file. The test operatic tunes is established in the below of product test base, can provide outside sound source for the MEMS microphone that awaits measuring. The top of product test base is equipped with the product standing groove, and product standing groove bottom is equipped with the bottom and advances the sound hole, and its periphery is equipped with the periphery and advances the sound hole, and the periphery that the periphery advances the sound hole is equipped with a seal structure. The height of test needle file can go up and down, test needle file bottom is equipped with cavity and the 2nd seal structure. When the test needle file highly descended, the 2nd seal structure can coordinate with a seal structure is sealed, formed in the top of the MEMS microphone that awaits measuring to be linked together and sealed " the second operatic tunes " with the test operatic tunes. After adopting above -mentioned structure, the commonality is strong, can advance sound microphone etc. To go forward the sound microphone or the back of the body and carry out acoustics and detect, saves manufacturing cost, and in addition, the test result degree of accuracy is high, and the test result is more stable.
Description
Technical field
This utility model relates to a kind of electronic product testing agency, particularly a kind of MEMS microphone mechanism for testing.
Background technology
Mike's wind energy is converted into the corresponding signal of telecommunication the voice signal of people, is widely used in mobile phone, computer, telephone set, photographing unit and video camera etc..
MEMS microphone is based on the mike that Micro Electro Mechanical System (MicroelectromechanicalSystems is abbreviated as MEMS) technology manufactures.
Growing along with IT technology, MEMS microphone proportion is increasing, especially the 4G cell phone application applied at the multimedia audio-video of PC and come on stage, is proposed higher requirement to the ability of the various interference of input quality and the anti-external world of audio signal.Therefore, the acoustical testing of MEMS microphone be it is also proposed higher requirement.
Existing MEMS microphone mechanism for testing also exists following deficiency:
1. poor universality and test effect are unstable, poor accuracy.
The sensitivity of comprehensive MEMS microphone and the consideration of signal to noise ratio aspect, MEMS microphone of the prior art also has advance sound mike or carries on the back into various ways such as sound mikes.
But, existing MEMS microphone mechanism for testing is only capable of testing into the one in sound mike etc. for advance sound mike or carry on the back.As various ways all detected, then need buy or manufacture multiple MEMS microphone mechanism for testing, poor universality, add the purchase cost of user.
It addition, when adopt conventional MEMS microphone mechanism for testing carry out advance sound mike or carry on the back test into sound mike time, can cause that inequality placed by mike to be measured because of various factors, and then affect test accuracy, test effect also unstable.
2. the encapsulation seal of pair MEMS microphone cannot be carried out detection.
Utility model content
The technical problems to be solved in the utility model is for above-mentioned the deficiencies in the prior art, and a kind of MEMS microphone mechanism for testing is provided, this MEMS microphone mechanism for testing highly versatile, can to advance sound mike or carry on the back and carry out Acoustic detection into sound mike etc., save production cost, meanwhile, test result accuracy is high, and test result is more stable.
It addition, the MEMS microphone mechanism for testing that the application provides, moreover it is possible to the encapsulation seal of MEMS microphone to be measured is detected.
For solving above-mentioned technical problem, the technical solution adopted in the utility model is:
A kind of MEMS microphone mechanism for testing, including the test operatic tunes, product test base and test needle stand；
The test operatic tunes is arranged on the lower section of product test base and top end opening, can provide outside sound source for MEMS microphone to be measured；
The top of product test base is provided with the product placing trough for installing MEMS microphone to be measured, the bottom of product placing trough is provided with bottom sound inlet, the periphery of product placing trough is provided with periphery sound inlet, bottom sound inlet and periphery sound inlet and is all connected with the test operatic tunes；The periphery of periphery sound inlet is provided with the first sealing structure；
Test needle stand is positioned at the surface of product test base, and the height of test needle stand can lift；It is provided with cavity bottom test needle stand and seals structure be positioned at cavity periphery second；
When MEMS microphone to be measured is arranged in product placing trough, when test needle stand height declines, bottom test needle stand second seals structure and can coordinate with the first sealing sealing structure of product test base, at " second operatic tunes " that be formed over sealing of MEMS microphone to be measured, should " second operatic tunes " be connected with the test operatic tunes by periphery sound inlet.
The described test operatic tunes includes the superposed front operatic tunes and is positioned at the rear operatic tunes of bottom, is provided with loudspeaker, front operatic tunes top end opening, and is provided with mike in the front operatic tunes in the rear operatic tunes.
The middle part of the described test operatic tunes is provided with the fixing seat of loudspeaker, and the front operatic tunes is positioned at the top of the fixing seat of loudspeaker, and the rear operatic tunes is positioned at the lower section of the fixing seat of loudspeaker.
Described product test base is connected by bolt is fixing with the top of the test operatic tunes.
Described MEMS microphone to be measured is for carrying on the back into sound mike or advance sound mike.
Described first sealing structure is sealing gasket, and the second sealing structure is sealing ring.
This utility model has the advantages that after adopting said structure
1. in test process, press under test needle stand and fit with product test base, owing to the first sealing sealing structure and the second sealing structure coordinates, it is thus possible to be formed over sealing " second operatic tunes " well in MEMS microphone to be measured.Sound in the front operatic tunes enters second operatic tunes above MEMS microphone to be measured by the periphery sound inlet on product test base, and the sound in the front operatic tunes enters the bottom of MEMS microphone to be measured simultaneously also by center sound inlet.
Therefore, MEMS microphone mechanism for testing of the present utility model, on the one hand, advance sound MEMS microphone can be realized or carry on the back the compatibility test into sound MEMS microphone.On the other hand, be avoided that routine carry on the back into sound MEMS microphone test time, testing needle, below product to be measured, causes that MEMS microphone to be measured places the impact that brings of inequality so that test accuracy is higher, and test effect is more stable.
2. MEMS microphone mechanism for testing of the present utility model, due to can realize MEMS microphone test time two-way enter sound, namely the top of MEMS microphone to be measured and bottom can enter sound simultaneously, therefore, potting is there is bad once MEMS microphone to be measured, namely there will be the phenomenons such as low frequency drop, it is thus possible to for detecting the sealing seal judging MEMS microphone to be measured.
Accompanying drawing explanation
Fig. 1 shows the structural representation of a kind of MEMS microphone mechanism for testing of this utility model.
Fig. 2 shows the structural representation of product test base in this utility model.
Fig. 3 shows the structural representation of test needle stand in this utility model.
Fig. 4 shows the upward view of test needle stand in Fig. 3.
Wherein have:
1. test needle plate；
2. test needle stand；
3. sealing ring；
4. sealing gasket；
5. product test base；
6. the test operatic tunes；
7. mike；
8. the fixing seat of loudspeaker；
9. loudspeaker；
10. MEMS microphone to be measured；
11. second operatic tunes；
12. center sound inlet；
13. the front operatic tunes；
14. the rear operatic tunes；
15. product placing trough；
16. periphery sound inlet；
17. testing needle；
18. cavity.
Detailed description of the invention
Below in conjunction with accompanying drawing and concrete better embodiment, this utility model is described in further detail.
As it is shown in figure 1, a kind of MEMS microphone mechanism for testing, including the test operatic tunes 6, product test base 5 and test needle stand 2.
The test operatic tunes is arranged on the lower section of product test base, and the top of the test operatic tunes is connected preferably by bolt and product test base are fixing.As replacement, the top of the test operatic tunes may be used without other known connected modes such as engaging, welding and fixes with product test base and be connected.
The above-mentioned test operatic tunes, can provide outside sound source for MEMS microphone 10 to be measured.MEMS microphone to be measured can for carrying on the back into sound mike, it is also possible to for advance sound mike.The MEMS microphone mechanism for testing of the application, can carry out compatibility test to carrying on the back into sound mike and advance sound mike.
The middle part of the test operatic tunes is provided with the fixing seat 8 of loudspeaker, and being positioned at the part above the fixing seat of loudspeaker is the front operatic tunes 13, and being positioned at the part below the fixing seat of loudspeaker is the rear operatic tunes 14.
It is provided with loudspeaker 9, front operatic tunes top end opening in the rear operatic tunes, and in the front operatic tunes, is provided with mike 7.
As in figure 2 it is shown, the top of product test base is provided with product placing trough 15, this product placing trough 15 is used for installing MEMS microphone 10 to be measured.No matter MEMS microphone 10 to be measured when mounted, is advance sound MEMS microphone or carries on the back into sound MEMS microphone, and its Pad face is all upward.
The bottom of product placing trough is provided with bottom sound inlet 12, and the periphery of product placing trough is provided with periphery sound inlet 16.Bottom sound inlet is all connected with the front operatic tunes of the test operatic tunes with periphery sound inlet.
The periphery of periphery sound inlet is provided with the first sealing structure, and this first sealing structure is preferably sealing gasket 4, but as replacing, the first sealing structure can also be other sealing structures such as sealing ring.
Test needle stand 2 is positioned at the surface of product test base, and the height of test needle stand can lift.As shown in Figure 3 and Figure 4, it is provided with cavity 18 bottom test needle stand and seals structure be positioned at cavity periphery second.
The top of test needle stand 2 is provided with test needle plate 1, and test needle plate is provided with the some testing needles 17 stretching into cavity 18.
Second seals structure is preferably sealing ring 3, but as replacing, the first sealing structure can also be other sealing structures such as sealing gasket.
During test, pressing under test needle stand, the testing needle of test needle stand contacts with the test suite of MEMS microphone to be measured.Bottom test needle stand second seals structure and can coordinate with the first sealing sealing structure of product test base, it is formed over, in MEMS microphone to be measured, " second operatic tunes " 11 that sealing is good, should " second operatic tunes " be connected with testing the operatic tunes by periphery sound inlet.
Then, loudspeaker 9 sounding in the test operatic tunes 6 it is fixed on, on the one hand, the sound in the front operatic tunes enters second operatic tunes above MEMS microphone to be measured by the periphery sound inlet on product test base.On the other hand, the sound in the front operatic tunes enters the bottom of MEMS microphone to be measured simultaneously also by bottom sound inlet.Namely arrow in Fig. 1 represents the flow direction of sound.
Above-mentioned mechanism for testing is simultaneously suitable for advance sound MEMS microphone and carries on the back into sound MEMS microphone.
In sum, because the good of " second operatic tunes " exists so that the above and below of MEMS microphone to be measured all has sound to surround.Once MEMS microphone to there is potting bad, it may appear that low frequency drop phenomenon, it is thus possible to its hermetic seal is made differentiation.
Use above-mentioned mechanism for testing, on the one hand, the compatibility test that advance sound can be realized with carry on the back into sound MEMS microphone.On the other hand, be avoided that routine carry on the back into sound test time testing needle below product to be measured, cause that MEMS microphone to be measured places the impact that brings of inequality so that test accuracy is higher, and test effect is more stable.
Preferred implementation of the present utility model described in detail above; but; this utility model is not limited to the detail in above-mentioned embodiment; in technology concept of the present utility model; the technical solution of the utility model can being carried out multiple equivalents, these equivalents belong to protection domain of the present utility model.
Claims (6)
1. a MEMS microphone mechanism for testing, it is characterised in that: include the test operatic tunes, product test base and test needle stand；
The test operatic tunes is arranged on the lower section of product test base and top end opening, can provide outside sound source for MEMS microphone to be measured；
The top of product test base is provided with the product placing trough for installing MEMS microphone to be measured, the bottom centre of product placing trough is provided with center sound inlet, the periphery of product placing trough is provided with periphery sound inlet, center sound inlet and periphery sound inlet and is all connected with the test operatic tunes；The periphery of periphery sound inlet is provided with the first sealing structure；
Test needle stand is positioned at the surface of product test base, and the height of test needle stand can lift；It is provided with cavity bottom test needle stand and is positioned at the second sealing structure of cavity periphery；
When MEMS microphone to be measured is arranged in product placing trough, when pressing under test needle stand, bottom test needle stand second seals structure and can coordinate with the first sealing sealing structure of product test base, at " second operatic tunes " that be formed over sealing of MEMS microphone to be measured, should " second operatic tunes " be connected with the test operatic tunes by periphery sound inlet.
2. MEMS microphone mechanism for testing according to claim 1, it is characterised in that: the described test operatic tunes includes the superposed front operatic tunes and is positioned at the rear operatic tunes of bottom, is provided with loudspeaker, front operatic tunes top end opening, and is provided with mike in the front operatic tunes in the rear operatic tunes.
3. MEMS microphone mechanism for testing according to claim 2, it is characterised in that: the middle part of the described test operatic tunes is provided with the fixing seat of loudspeaker, and the front operatic tunes is positioned at the top of the fixing seat of loudspeaker, and the rear operatic tunes is positioned at the lower section of the fixing seat of loudspeaker.
4. MEMS microphone mechanism for testing according to claim 1, it is characterised in that: described product test base is connected by bolt is fixing with the top of the test operatic tunes.
5. MEMS microphone mechanism for testing according to claim 1, it is characterised in that: described MEMS microphone to be measured is for carrying on the back into sound mike or advance sound mike.
6. MEMS microphone mechanism for testing according to claim 1, it is characterised in that: described first sealing structure is sealing gasket, and the second sealing structure is sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620053978.9U CN205378221U (en) | 2016-01-20 | 2016-01-20 | MEMS microphone accredited testing organization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620053978.9U CN205378221U (en) | 2016-01-20 | 2016-01-20 | MEMS microphone accredited testing organization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205378221U true CN205378221U (en) | 2016-07-06 |
Family
ID=56273687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620053978.9U Expired - Fee Related CN205378221U (en) | 2016-01-20 | 2016-01-20 | MEMS microphone accredited testing organization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205378221U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105722003A (en) * | 2016-01-20 | 2016-06-29 | 苏州搏技光电技术有限公司 | MEMS microphone testing mechanism |
| TWI644577B (en) * | 2017-10-11 | 2018-12-11 | 四方自動化機械股份有限公司 | Microphone test device |
-
2016
- 2016-01-20 CN CN201620053978.9U patent/CN205378221U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105722003A (en) * | 2016-01-20 | 2016-06-29 | 苏州搏技光电技术有限公司 | MEMS microphone testing mechanism |
| TWI644577B (en) * | 2017-10-11 | 2018-12-11 | 四方自動化機械股份有限公司 | Microphone test device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20210120 |