CN104507033B - Method for the anti-dust performance of the electro-acoustic transducer device that detects communication terminal device - Google Patents
Method for the anti-dust performance of the electro-acoustic transducer device that detects communication terminal device Download PDFInfo
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- CN104507033B CN104507033B CN201510004454.0A CN201510004454A CN104507033B CN 104507033 B CN104507033 B CN 104507033B CN 201510004454 A CN201510004454 A CN 201510004454A CN 104507033 B CN104507033 B CN 104507033B
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Abstract
The invention belongs to detection method technical field, more particularly to a kind of method for being used to detect the anti-dust performance of the electro-acoustic transducer device of communication terminal device comprises the following steps：The magnetic flux F1 of electro-acoustic transducer device is tested with gaussmeter；The iron filings that particle diameter is the mesh of 100 mesh~400 are placed in box body, then communication terminal device is placed in the box body, the vibration that line frequency is 5~100HZ is entered to the box body, vibration duration is 10min~5h；Communication terminal device is taken out, the iron filings on its surface are removed, the magnetic flux F2 of electro-acoustic transducer device is then tested with gaussmeter, compares F2 and F1 size, assesses the anti-dust performance of the electro-acoustic transducer device.Relative to prior art, the present invention can test the anti-dust performance of electro-acoustic transducer device well, and be adjusted and improve accordingly, it is possible to reduce distorsion, hoarse, noise, volume and diminish and enter the appearance of the phenomenons such as the grains of sand, improve the confidence level of user.
Description
Technical field
The invention belongs to detection method technical field, more particularly to a kind of electroacoustic transduction for being used to detect communication terminal device
The method of the anti-dust performance of device.
Background technology
Electro-acoustic transducer device is by electricity（Sound）Signal energy is converted into corresponding sound（Electricity）The device of signal energy, it includes
Loudspeaker, receiver and microphone etc..Wherein, loudspeaker is also known as " loudspeaker ", and it is a kind of electric signal to be changed into acoustical signal
Inverting element, it can be seen in the electronic electric equipment of sounding.Receiver is also receiver, and it is a kind of by audio electrical signal
The electro-acoustic element of voice signal is converted into, is widely used in the communication terminal devices such as mobile phone, landline telephone and audiphone, it is real
Existing audio（Voice, music）Reset.
Influence in order to avoid dust in air etc. to loudspeaker and receiver etc., in loudspeaker and receiver etc. outer one
As Air Filter will be installed.But, the loudspeaker and receiver in communication terminal device are using a period of time in the prior art
Afterwards, distorsion just occurs, it is hoarse and enter the phenomenons such as the grains of sand because, the anti-dust performance of its Air Filter being equipped with is not good enough.
Therefore, before communication terminal device dispatches from the factory, if can test the anti-dust performance of Air Filter, the dust-proof of Air Filter is judged with this
Performance is simultaneously adjusted and improved accordingly, it is possible to reduces distorsion, hoarse, noise, volume and diminishes and enter the phenomenons such as the grains of sand.
But, prior art do not provide be effectively used for detect communication terminal device electro-acoustic transducer device it is dust-proof
The method of performance.
Based on this, the present invention is intended to provide a kind of anti-dust performance for being used to detect the electro-acoustic transducer device of communication terminal device
Method, effectively to detect the anti-dust performance for the Air Filter being arranged at outside electro-acoustic transducer device.
The content of the invention
It is an object of the invention to：In view of the shortcomings of the prior art, provide a kind of for detecting communication terminal device
The method of the anti-dust performance of electro-acoustic transducer device, effectively to detect the dust tightness for the Air Filter being arranged at outside electro-acoustic transducer device
Energy.
To achieve these goals, the present invention is adopted the following technical scheme that：
For the method for the anti-dust performance of the electro-acoustic transducer device that detects communication terminal device, comprise the following steps：
The first step, the magnetic flux F1 of electro-acoustic transducer device is tested with gaussmeter；Because electro-acoustic transducer device contains magnetic in itself
Iron, therefore with certain magnetic flux；
Second step, the iron filings that particle diameter is the mesh of 100 mesh~400 are placed in box body, then communication terminal device are placed in described
In box body, the vibration that line frequency is 5~100HZ is entered to the box body, vibration duration is 10min~5h；Electroacoustic transduction
The magnet that device contains in itself can attract iron filings, if the size of iron filings is less than the hole of the Air Filter provisioned in electro-acoustic transducer device
Footpath, then iron filings can be attracted to inside electro-acoustic transducer device, vibration can then increase the severe degree of test environment because
Iron filings are easier to get into electro-acoustic transducer device from the hole of Air Filter in the case of vibration, so can just cause test condition more
Plus it is harsh, so that test result is relatively reliable and believable；
3rd step, takes out communication terminal device, removes the iron filings on its surface, then tests electro-acoustic transducer device with gaussmeter
Magnetic flux F2, compare F2 and F1 size, assess the anti-dust performance of the electro-acoustic transducer device.If F2 is not equal to F1, table
Magnetic field inside bright electro-acoustic transducer device is changed, and has indicated that iron filings are adsorbed to inside electro-acoustic transducer device, so
Just the anti-dust performance of the Air Filter provisioned in explanation electro-acoustic transducer device is not good enough.According to test result, in production, it is possible to
Make the aperture of the Air Filter of electro-acoustic transducer device outfit smaller, to improve its anti-dust performance.
One kind of the method for the anti-dust performance of electro-acoustic transducer device as the present invention for detecting communication terminal device changes
Enter, vibration is that the box body is fixedly installed on shake table described in second step, driven by the vibration of the shake table described
Box body vibrates, and then drives the vibration of the communication terminal device, so as to realize the automation of vibration, is easy to regulation to vibrate
Frequency and time of vibration, make vibration more controllable.
One kind of the method for the anti-dust performance of electro-acoustic transducer device as the present invention for detecting communication terminal device changes
Enter, during vibration, the Air Filter of the electro-acoustic transducer device is placed close to the bottom surface of the box body, so that iron filings can hold very much
Change places and touch Air Filter.
One kind of the method for the anti-dust performance of electro-acoustic transducer device as the present invention for detecting communication terminal device changes
Enter, during vibration, the communication terminal device is in broadcast state, and this can further increase the severe degree of test environment, make
Test condition is more harsh.
One kind of the method for the anti-dust performance of electro-acoustic transducer device as the present invention for detecting communication terminal device changes
Enter, the 3rd step also includes taking apart the communication terminal device, whether there are iron filings on the Air Filter for observing electro-acoustic transducer device
Step, this be from it is apparent it is upper from the situations of iron filings is adsorbed on Air Filter, so as to intuitively reflect the anti-dust performance of Air Filter.
One kind of the method for the anti-dust performance of electro-acoustic transducer device as the present invention for detecting communication terminal device changes
Enter, the communication terminal device is to be mounted on electroacoustic in mobile phone, landline telephone, tablet personal computer or audiphone, these equipment to change
Can device.
One kind of the method for the anti-dust performance of electro-acoustic transducer device as the present invention for detecting communication terminal device changes
Enter, the electro-acoustic transducer device is loudspeaker or receiver.
One kind of the method for the anti-dust performance of electro-acoustic transducer device as the present invention for detecting communication terminal device changes
Enter, when the electro-acoustic transducer device is loudspeaker, the step of first step also includes testing its volume V1 with loudness instrument, the 3rd step
Also include also including testing its volume V2 with loudness instrument, and compare the step of V1 and V2 size are to assess its anti-dust performance.Such as
Iron filings have been adsorbed in fruit loudspeaker, then can influence its volume, therefore, if V1 is not equal to V2, have shown that there are iron filings to enter raises one's voice
In device.This is the change with another parameter to assess the anti-dust performance of loudspeaker, further to verify the dust tightness of loudspeaker
Energy.
One kind of the method for the anti-dust performance of electro-acoustic transducer device as the present invention for detecting communication terminal device changes
Enter, when the electro-acoustic transducer device is receiver, the step of first step also includes test its power sensitivity S1, the 3rd step is also
Including also including test its power sensitivity S2, and compare the step of S1 and S2 size are to assess its anti-dust performance.Power spirit
Sensitivity refers to that in defined frequency during the power for the receiver 1mV that feeds, the boosting that receiver is produced in artificial ear is referred to as called
The power sensitivity of device.If having adsorbed iron filings in receiver, its power sensitivity can also change.Therefore, this be with
The anti-dust performance of receiver is assessed in the change of another parameter, further to verify the anti-dust performance of receiver.
Relative to prior art, the present invention first tests the magnetic flux of electro-acoustic transducer device, is then placed on equipped with iron filings
Box body in vibrated, because electro-acoustic transducer device is per se with magnet, therefore iron filings can be caused most as " sieve rice "
Possibly entered through Air Filter in electro-acoustic transducer device, after iron filings have been adsorbed onto in electro-acoustic transducer device, its magnetic flux
It can change, in use, the problems such as distorsion, hoarse, noise and volume diminish just occurs in communication terminal device.If first
The magnetic flux F3 difference that the magnetic flux F1 and the 3rd pacing that pacing is obtained are obtained is larger（Change more than 10%）, then the electroacoustic transduction is shown
The anti-dust performance of device is not good, in routine use, and the dust in air readily penetrates through Air Filter and enters electro-acoustic transducer device
It is interior, large effect is caused to go out sound, volume and audio etc. of electro-acoustic transducer device.
In a word, the present invention can test the anti-dust performance of electro-acoustic transducer device well, and be adjusted and improve accordingly,
Distorsion, hoarse, noise, volume can just be reduced to diminish and enter the appearance of the phenomenons such as the grains of sand, the confidence level of user is improved.
Embodiment
The present invention and its advantage are described in further detail with reference to embodiment, but the embodiment party of the present invention
Formula is not limited to this.
Embodiment 1
A kind of method for being used to detect the anti-dust performance of the loudspeaker of mobile phone is present embodiments provided, is comprised the following steps：
The first step, with the magnetic flux F1 of gaussmeter test loudspeaker, its volume V1 is tested with loudness instrument；
Second step, particle diameter is placed in box body for the iron filings of 200 mesh, box body is fixedly installed on shake table, then by hand
Machine is started shooting, and mobile phone is in the state for playing music, then mobile phone is placed in box body, and make the Air Filter of loudspeaker close
The bottom surface of box body is placed, and drives box body to enter the vibration that line frequency is 60HZ by the vibration of shake table, and vibration duration is
1h；
3rd step, takes out mobile phone, removes the iron filings on its surface, then with the magnetic flux F2 of gaussmeter test loudspeaker, than
Compared with F2 and F1 size, its volume V2 is tested with loudness instrument, and compares V1 and V2 size, the dust tightness of the loudspeaker is assessed
Can, and mobile phone is taken apart, whether there are iron filings on the Air Filter for observing loudspeaker.
If F2 is compared with F1, rate of change reaches more than 10%, or V2 is compared with V1, and rate of change reaches more than 10%, then recognizes
Anti-dust performance for the loudspeaker is not good, it is necessary to be equipped with the smaller Air Filter in aperture.
Embodiment 2
A kind of method for being used to detect the anti-dust performance of the receiver of mobile phone is present embodiments provided, is comprised the following steps：
The first step, the magnetic flux F1 of receiver is tested with gaussmeter, and tests its power sensitivity S1；
Second step, particle diameter is placed in box body for the iron filings of 300 mesh, box body is fixedly installed on shake table, then by hand
Machine is started shooting, and mobile phone is in the state for playing music, then mobile phone is placed in box body, and make the Air Filter of receiver close
The bottom surface of box body is placed, and drives box body to enter the vibration that line frequency is 30HZ by the vibration of shake table, and vibration duration is
3h；
3rd step, takes out mobile phone, removes the iron filings on its surface, and the magnetic flux F2 of receiver is then tested with gaussmeter, than
Compared with F2 and F1 size, its power sensitivity S1 is tested, and compares S1 and S2 size, the anti-dust performance of the receiver is assessed,
And take mobile phone apart, whether there are iron filings on the Air Filter for observing receiver.
If F2 is compared with F1, rate of change reaches more than 20%, or S2 is compared with S1, and rate of change reaches more than 15%, then recognizes
Anti-dust performance for the receiver is not good, it is necessary to be equipped with the smaller Air Filter in aperture.
Embodiment 3
Present embodiments provide a kind of method for being used to detect the anti-dust performance of the receiver of audiphone, including following step
Suddenly：
The first step, the magnetic flux F1 of receiver is tested with gaussmeter, and tests its power sensitivity S1；
Second step, particle diameter is placed in box body for the iron filings of 100 mesh, box body is fixedly installed on shake table, then will be helped
Listen device to start shooting, then audiphone is placed in box body, and the Air Filter of receiver is placed close to the bottom surface of box body, pass through vibration
The vibration of platform drives box body to enter the vibration that line frequency is 10HZ, and vibration duration is 4h；
3rd step, takes out audiphone, removes the iron filings on its surface, and the magnetic flux F2 of receiver is then tested with gaussmeter,
Compare F2 and F1 size, test its power sensitivity S1, and compare S1 and S2 size, assess the dust tightness of the receiver
Can, and audiphone is taken apart, whether there are iron filings on the Air Filter for observing receiver.
If F2 is compared with F1, rate of change reaches more than 10%, or S2 is compared with S1, and rate of change reaches more than 10%, then recognizes
Anti-dust performance for the receiver is not good, it is necessary to be equipped with the smaller Air Filter in aperture.
Embodiment 4
Present embodiments provide a kind of method for being used to detect the anti-dust performance of the loudspeaker of landline telephone, including following step
Suddenly：
The first step, with the magnetic flux F1 of gaussmeter test loudspeaker, its volume V1 is tested with loudness instrument；
Second step, particle diameter is placed in box body for the iron filings of 200 mesh, box body is fixedly installed on shake table, then will be solid
Determine phone start, then landline telephone is placed in box body, and the Air Filter of loudspeaker is placed close to the bottom surface of box body, pass through
The vibration of shake table drives box body to enter the vibration that line frequency is 90HZ, and vibration duration is 30min；
3rd step, takes out landline telephone, the iron filings on its surface is removed, then with the magnetic flux of gaussmeter test loudspeaker
F2, compares F2 and F1 size, and its volume V2 is tested with loudness instrument, and compares V1 and V2 size, assesses the anti-of the loudspeaker
Dirt performance, and landline telephone is taken apart, whether there are iron filings on the Air Filter for observing loudspeaker.
If F2 is compared with F1, rate of change reaches more than 10%, or V2 is compared with V1, and rate of change reaches more than 10%, then recognizes
Anti-dust performance for the loudspeaker is not good, it is necessary to be equipped with the smaller Air Filter in aperture.
Embodiment 5
Present embodiments provide a kind of method for being used to detect the anti-dust performance of the loudspeaker of tablet personal computer, including following step
Suddenly：
The first step, with the magnetic flux F1 of gaussmeter test loudspeaker, its volume V1 is tested with loudness instrument；
Second step, particle diameter is placed in box body for the iron filings of 300 mesh, box body is fixedly installed on shake table, then will be flat
Plate booting computer, and tablet personal computer is in the state for playing music, then tablet personal computer is placed in box body, and make loudspeaker
Air Filter close to box body bottom surface place, by shake table vibration drive box body enter line frequency be 50HZ vibration, vibration
Duration is 1.5h；
3rd step, takes out tablet personal computer, the iron filings on its surface is removed, then with the magnetic flux of gaussmeter test loudspeaker
F2, compares F2 and F1 size, and its volume V2 is tested with loudness instrument, and compares V1 and V2 size, assesses the anti-of the loudspeaker
Dirt performance, and tablet personal computer is taken apart, whether there are iron filings on the Air Filter for observing loudspeaker.
If F2 is compared with F1, rate of change reaches more than 10%, or V2 is compared with V1, and rate of change reaches more than 10%, then recognizes
Anti-dust performance for the loudspeaker is not good, it is necessary to be equipped with the smaller Air Filter in aperture.
The announcement and teaching of book according to the above description, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula is changed and changed.Therefore, the invention is not limited in embodiment disclosed and described above, to the present invention's
Some modifications and changes should also be as falling into the scope of the claims of the present invention.Although in addition, being used in this specification
Some specific terms, but these terms are merely for convenience of description, do not constitute any limitation to the present invention.
Claims (7)
1. the method for the anti-dust performance of the electro-acoustic transducer device for detecting communication terminal device, it is characterised in that including following
Step：
The first step, the magnetic flux F1 of electro-acoustic transducer device is tested with gaussmeter；
Second step, the iron filings that particle diameter is the mesh of 100 mesh~400 is placed in box body, then communication terminal device is placed in into the box body
It is interior, the vibration that line frequency is 5~100HZ is entered to the box body, vibration duration is 10min~5h；
3rd step, takes out communication terminal device, removes the iron filings on its surface, and the magnetic of electro-acoustic transducer device is then tested with gaussmeter
Flux F2, compares F2 and F1 size, assesses the anti-dust performance of the electro-acoustic transducer device；
Vibration is that the box body is fixedly installed on shake table described in second step, is driven by the vibration of the shake table described
Box body vibrates；
During vibration, the Air Filter of the electro-acoustic transducer device is placed close to the bottom surface of the box body.
2. the method according to claim 1 for being used to detect the anti-dust performance of the electro-acoustic transducer device of communication terminal device,
It is characterized in that：During vibration, the communication terminal device is in broadcast state.
3. the method according to claim 1 for being used to detect the anti-dust performance of the electro-acoustic transducer device of communication terminal device,
It is characterized in that：3rd step also include the communication terminal device is taken apart, observe electro-acoustic transducer device Air Filter on whether
The step of having iron filings.
4. the method according to claim 1 for being used to detect the anti-dust performance of the electro-acoustic transducer device of communication terminal device,
It is characterized in that：The communication terminal device is mobile phone, landline telephone, tablet personal computer or audiphone.
5. the method according to claim 1 for being used to detect the anti-dust performance of the electro-acoustic transducer device of communication terminal device,
It is characterized in that：The electro-acoustic transducer device is loudspeaker or receiver.
6. the method according to claim 5 for being used to detect the anti-dust performance of the electro-acoustic transducer device of communication terminal device,
It is characterized in that：When the electro-acoustic transducer device is loudspeaker, the first step also includes the step that its volume V1 is tested with loudness instrument
Suddenly, the 3rd step also includes testing its volume V2 with loudness instrument, and compares the step of V1 and V2 size are to assess its anti-dust performance.
7. the method according to claim 5 for being used to detect the anti-dust performance of the electro-acoustic transducer device of communication terminal device,
It is characterized in that：When the electro-acoustic transducer device is receiver, the step of first step also includes test its power sensitivity S1,
3rd step also includes test its power sensitivity S2, and compares the step of S1 and S2 size are to assess its anti-dust performance.
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| CN201510004454.0A CN104507033B (en) | 2015-01-06 | 2015-01-06 | Method for the anti-dust performance of the electro-acoustic transducer device that detects communication terminal device |
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| CN201510004454.0A CN104507033B (en) | 2015-01-06 | 2015-01-06 | Method for the anti-dust performance of the electro-acoustic transducer device that detects communication terminal device |
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| CN104507033B true CN104507033B (en) | 2017-09-29 |
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| CN112834123A (en) * | 2021-01-09 | 2021-05-25 | 江苏粤科检测技术服务有限公司 | Nondestructive testing method for dustproof performance of electronic product |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1315847A (en) * | 1998-09-11 | 2001-10-03 | 伯克希尔实验室公司 | Method for using resonant acoustic energy and/or acousto-EM energy to detect effect structures |
| CN101335469A (en) * | 2007-06-29 | 2008-12-31 | 精工爱普生株式会社 | Power transmission control device, power transmission device, electronic instrument, and non-contact power transmission system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7812481B2 (en) * | 2007-06-29 | 2010-10-12 | Seiko Epson Corporation | Power transmission control device, power transmission device, electronic instrument, and non-contact power transmission system |
| JP2014225963A (en) * | 2013-05-16 | 2014-12-04 | ソニー株式会社 | Detector, power supply system and control method of detector |
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- 2015-01-06 CN CN201510004454.0A patent/CN104507033B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1315847A (en) * | 1998-09-11 | 2001-10-03 | 伯克希尔实验室公司 | Method for using resonant acoustic energy and/or acousto-EM energy to detect effect structures |
| CN101335469A (en) * | 2007-06-29 | 2008-12-31 | 精工爱普生株式会社 | Power transmission control device, power transmission device, electronic instrument, and non-contact power transmission system |
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