CN208386934U - test fixture - Google Patents
test fixture Download PDFInfo
- Publication number
- CN208386934U CN208386934U CN201821035975.8U CN201821035975U CN208386934U CN 208386934 U CN208386934 U CN 208386934U CN 201821035975 U CN201821035975 U CN 201821035975U CN 208386934 U CN208386934 U CN 208386934U
- Authority
- CN
- China
- Prior art keywords
- sound
- test
- artificial ear
- test fixture
- card slot
- 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.)
- Active
Links
Landscapes
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The utility model discloses a kind of test fixture, the test fixture includes test computer, the sound card being connect with test computer, the artificial ear and the fixed support base being set on artificial ear being connect with sound card, trial product to be measured is connect with sound card, the end face of support base is equipped with card slot, there is the cavity of connection card slot and artificial ear in support base, it is characterized in that, trial product to be measured includes that the first part and second of speaking is spoken part, card slot includes the first card slot and the second card slot, first part of speaking is fastened in the first card slot, second part of speaking is fastened in the second card slot, first speak part and second speak part the acoustic aperture that goes out pass through cavity and be connected with artificial ear.The test fixture of the utility model can treat test product and quickly be tested, and test fixture need to only use artificial ear that can speak to two part while to test, can reduce the testing cost of trial product to be measured.
Description
Technical field
The utility model relates to acoustic-electric technical field more particularly to a kind of test fixtures.
Background technique
With the extensive use of portable electronic product, the utilization rate of the products such as earphone, loudspeaker, microphone is higher and higher,
In order to ensure such product acoustical quality with higher, need before such product export by performance test.Currently, existing
Test fixture be merely able to test a part of speaking, can only be by first surveying when needing to test multiple parts of speaking
Try another part of speaking of part re-test of speaking, or need simultaneously setting two artificial ears tested, test process compared with
It bothers, take a long time and is at high cost.
Utility model content
The main purpose of the utility model is to provide a kind of test fixture, it is intended to solve the test of existing test fixture it is time-consuming compared with
The problem of long and higher cost.
To achieve the above object, the utility model proposes test fixture include test computer, with the test computer company
The sound card connect, the artificial ear and the fixed support base being set on the artificial ear that are connect with the sound card, trial product to be measured
Connect with the sound card, the end face of the support base is equipped with card slot, have in the support base be connected to the card slot with it is described
The cavity of artificial ear, the trial product to be measured include that the first part of speaking is spoken part with second, the card slot include the first card slot and
Second card slot, the described first part of speaking are fastened in first card slot, and the described second part of speaking is fastened on second card slot
It is interior, described first speak part and described second speak part the acoustic aperture that goes out pass through the cavity and be connected with the artificial ear.
Preferably, the cavity includes first passage, second channel and third channel, described in the first passage connection
First card slot and the third channel, the second channel are connected to second card slot and the third channel, and the third is logical
Road is connected to the artificial ear.
Preferably, power amplifier is set between the sound card and the trial product to be measured, and the power amplifier is used
In the voice signal for amplifying the sound card output.
Preferably, measuring amplifier is provided between the sound card and the artificial ear, the measuring amplifier is for putting
The voice signal that the trial product to be measured that the big artificial ear picks up issues.
Preferably, the test computer is used to control the first voice signal and the rising tone that the sound card issues different frequency range
Sound signal, and control and the first voice signal is sent to described first speaks part, second sound signal is sent to described second
It speaks part；
The power amplifier is used to amplify the first voice signal and second sound signal processing, and will be after processing
The first transmission of sound signals speak part to described first, will treated that second sound signal is transmitted to described second speaks
Part；
Described first part of speaking will receive that treated that the first voice signal passes through institute by the power amplifier
Support base is stated to be transmitted in the artificial ear；
Described second part of speaking will receive that treated that second sound signal passes through institute by the power amplifier
Support base is stated to be transmitted in the artificial ear；
The artificial ear be used for receive described first speak part sending the first voice signal and described second speak part hair
Second sound signal out, and it is transmitted to the sound card after measuring amplifier processing, the sound card will pass through the survey
Amount amplifier treated the first voice signal and second sound signal are back to the test computer.
Preferably, the test computer according to the first voice signal of sending, second sound signal and passes through the survey
The first voice signal, the second sound signal returned after amount amplifier processing goes out to obtain the described first part and described second of speaking
The test result of sound part.
Preferably, the side wall of the cavity is equipped with and lets out acoustic aperture, and the described first part and described second of speaking is spoken the going out of part
Acoustic aperture is connected by the cavity with the acoustic aperture of letting out, and the cavity lets out acoustic aperture and extraneous conducting by described.
Preferably, the section for letting out acoustic aperture is round, rectangle or regular hexagon.
Preferably, being sticked on the side wall of the cavity has sound-absorbing material.
Preferably, sealing rubber ring is provided between the support base and the artificial ear.
In technical solutions of the utility model, first speak part and second speak part go out acoustic aperture pass through cavity and artificial ear
Conducting, therefore, test fixture can simultaneously test two sounding parts, for example, when testing earphone, Ke Yitong
When test the left channel and right channel of earphone, test fixture only needs the less time that can speak to two part while to survey
Examination, is greatly saved the testing time of trial product to be measured, facilitates user to treat test product and quickly tested, and test fixture
Need to only use artificial ear that can speak to two part while to test, can reduce the test of trial product to be measured at
This.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural schematic diagram of test fixture in the utility model embodiment.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 1 | Trial product to be measured | 32 | Second channel |
| 11 | First speaks part | 33 | Third channel |
| 12 | Second speaks part | 4 | Test computer |
| 2 | Support base | 5 | Sound card |
| 21 | First card slot | 6 | Artificial ear |
| 22 | Second card slot | 7 | Power amplifier |
| 31 | First passage | 8 | Measuring amplifier |
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, fall within the protection scope of the utility model.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment
It is only used for explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, such as
When the fruit particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, and cannot manage
Solution is its relative importance of indication or suggestion or the quantity for implicitly indicating indicated technical characteristic.Define as a result, " the
One ", the feature of " second " can explicitly or implicitly include at least one of the features.It is " more in the description of the present invention,
It is a " it is meant that at least two, such as two, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " connection ", " fixation " etc. should do broad sense reason
Solution, for example, " fixation " may be a fixed connection, may be a detachable connection, or integral；It can be mechanical connection, it can also
To be electrical connection；It can be directly connected, the connection inside two elements can also be can be indirectly connected through an intermediary
Or the interaction relationship of two elements, unless otherwise restricted clearly.It for the ordinary skill in the art, can be with
The concrete meaning of above-mentioned term in the present invention is understood as the case may be.
It in addition, the technical solution between each embodiment of the utility model can be combined with each other, but must be with ability
Based on domain those of ordinary skill can be realized, it will be understood that when the combination of technical solution appearance is conflicting or cannot achieve
The combination of this technical solution is not present, also not within the protection scope of the requires of the utility model.
The utility model proposes a kind of test fixtures, it is intended to solve the test of existing test fixture and take a long time and higher cost
The problem of.
Please refer to Fig. 1, in an embodiment of the present invention, test fixture (not indicating) include test computer 4, with survey
The sound card 5 of the examination connection of computer 4, the artificial ear 6 being connect with sound card 5 and the fixed support base 2 being set on artificial ear 6, it is to be measured
Trial product 1 is connect with sound card 5, and the end face of support base 2 is equipped with card slot (not indicating), and support base 2 is interior with connection card slot and imitative
The cavity (not indicating) of real ear 6, trial product 1 to be measured include that the first part 11 of speaking is spoken part 12 with second, and card slot includes first blocking
Slot 21 and the second card slot 22, the first part 11 of speaking are fastened in the first card slot 21, and the second part 12 of speaking is fastened on the second card slot 22
It is interior, first speak part 11 and second speak part 12 the acoustic aperture that goes out pass through cavity and artificial ear 6 and be connected.Wherein, the utility model
Trial product to be measured 1 can be earphone or loudspeaker, when trial product 1 to be measured is earphone, the first part 11 of speaking is left channel,
Two parts 12 of speaking are right channels.
When the test fixture of the utility model is tested, sound card 5 is controlled by test computer 4 first and makes a sound letter
Number, and transmission of sound signals is spoken part 12 to the first part 11 and second of speaking, is spoken part by the first part 11 and second of speaking
Voice signal is transmitted to artificial ear 6 by support base 2 by 12, and artificial ear 6 speaks the receive first part 11 and second of speaking
The voice signal that part 12 issues is transmitted back to sound card 5, issues and receives finally by 4 pairs of computer of the test connecting with sound card 5
Voice signal is analyzed and processed, and obtains the test result of trial product 1 to be measured.
In the utility model, first speak part 11 and second speak part 12 the acoustic aperture that goes out pass through cavity and led with artificial ear 6
Logical, therefore, test fixture can simultaneously test two sounding parts, for example, when testing earphone, it can be simultaneously
Test the left channel and right channel of earphone, test fixture only needs the less time that can speak to two part while to survey
Examination, is greatly saved the testing time of trial product 1 to be measured, facilitates user to treat test product 1 and quickly tested, and tests work
Dress need to only use artificial ear 6 that can speak to two and part while test, and can reduce the test of trial product 1 to be measured
Cost.
Further, Fig. 1 is please referred to, cavity may include first passage 31, second channel 32 and third channel 33, and
The first card slot of one channel 31 connection 21 and third channel 33, second card slot of the connection of second channel 32 22 and third channel 33, third
Channel 33 is connected to artificial ear 6, first speak the sending of part 11 voice signal and voice signal point that second speaks the sending of part 12
It Tong Guo not converge in third channel 33 after first passage 31 and second channel 32, and be transmitted to emulation after third channel 33
Ear 6.
In addition, please referring to Fig. 1, in a preferred embodiment, power amplification is provided between sound card 5 and trial product to be measured 1
Device 7, power amplifier 7 are used to amplify the voice signal of the output of sound card 5, and power is arranged between sound card 5 and trial product to be measured 1 and puts
Big device 7 can reduce the distortion rate for being transferred to the voice signal of trial product 1 to be measured, it is ensured that be transmitted to the sound of trial product 1 to be measured
The quality of signal.
Further, Fig. 1 is please referred to, measuring amplifier 8, measuring amplifier can be set between sound card 5 and artificial ear 6
8 voice signals issued for amplifying the trial product to be measured 1 of the pickup of artificial ear 6, the work of measuring amplifier 8 and power amplifier 7
With similar, by between sound card 5 and emulation setting measuring amplifier 8 can reduce and be transmitted to the sound of sound card 5 from artificial ear 6
The distortion rate of signal, it is ensured that be transmitted to the sound quality of the voice signal of sound card 5.
In addition, when testing out trial product 1 to be measured and occurring bad, in order to it is determined that first speaks part 11 or
Two speak part 12 there are bad, can by first speak part 11 and second speak part 12 send different voice signals come into
Row test, for example, in a specific embodiment, test computer 4 is used to control the first sound that sound card 5 issues different frequency range
Signal and second sound signal, and control and the first voice signal is sent to first speaks part 11, second sound signal is sent
It speaks part 12 to second；Power amplifier 7 is used to amplify the first voice signal and second sound signal processing, and will place
The first transmission of sound signals after reason is spoken part 11 to first, will treated that second sound signal is transmitted to second speaks part
12；First part 11 of speaking will be received and is transmitted to by treated the first voice signal of power amplifier 7 by support base 2
In artificial ear 6；Second part 12 of speaking will receive that treated that second sound signal passes through support base by power amplifier 7
2 are transmitted in artificial ear 6；Artificial ear 6 is used to receive first the first voice signal and second that part 11 issues of speaking and speaks part 12
The second sound signal of sending, and sound card 5 is transmitted to after the processing of measuring amplifier 8, sound card 5 will be by measuring amplifier 8
The first voice signal and second sound signal after reason are back to test computer 4.In addition, test computer 4 is according to the first of sending
Voice signal, second sound signal and the first voice signal, the second sound signal returned after the processing of measuring amplifier 8
Come obtain first speak part 11 and second speak part 12 test result.
Specifically, by taking trial product 1 to be measured is earphone as an example, during trial product 1 to be measured is tested, can pass through
Test computer 4 sets the voice signal for the different frequency range that left channel and right channel are sent, and can be received by artificial ear 6 in this way
The voice signal of different frequency range, then pass through the test result that analysis obtains left channel Yu right channel, keep test result more accurate.
For example, can to the left channel send 100-1000HZ the first voice signal, to the right channel send 2000-5000HZ the rising tone
Sound signal judges that there are problems in left channel when test the frequency range of undesirable voice signal occurs within 100-1000HZ；When
When test the frequency range of undesirable voice signal occurs within 2000-5000HZ, judge that there are problems in right channel.In addition, in order to
The test that left channel Yu right channel are more accurately carried out in full frequency band, can also be sent by using interval and be tested, for example,
Assuming that test frequency range is the voice signal of 100-1000HZ, it is assumed that the selection of frequency point is whole hundred, in this case, left channel
Can send the voice signal of 100HZ, 300HZ, 500HZ, 700HZ and 900HZ, right channel can send 200HZ, 400HZ,
The voice signal of 600HZ, 800HZ and 1000HZ.
Further, leakage formula test is carried out in order to treat test product 1, can be equipped on the side wall of cavity and lets out acoustic aperture
(not shown), first speak part 11 and second speak part 12 the acoustic aperture that goes out pass through cavity and be connected with acoustic aperture is let out, cavity, which passes through, to be let out
Acoustic aperture and extraneous conducting.It is arranged on the side wall of cavity by the way that acoustic aperture will be let out, it can be ensured that after placing trial product 1 to be measured every time,
The consistency of leakage, to improve measuring accuracy.Wherein, the section for letting out acoustic aperture can be round, rectangle or regular hexagon, let out
Acoustic aperture can also be that other shape users can according to actual needs be configured the shape for letting out acoustic aperture.
In addition, can be sticked on the side wall of cavity has sound-absorbing material (not shown), by the way that sound-absorbing material is arranged, can weaken
Sound reflection of the sound in cavity, and guarantee that performance of the voice signal when passing through cavity is stablized, to make test result more
It is accurate to add.
Further, in a preferred embodiment, sealing rubber ring (not shown) is provided between support base 2 and artificial ear 6,
Sealing rubber ring is sealed the gap between support base 2 and artificial ear 6, so that it is guaranteed that acoustic information is only simulated by cavity
Ear 6 picks up.
The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model,
Under all utility models in the utility model are conceived, equivalent structure made based on the specification and figures of the utility model
Transformation, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.
Claims (10)
1. a kind of test fixture, the test fixture includes the sound card and the sound testing computer, connecting with the test computer
The artificial ear and the fixed support base being set on the artificial ear, trial product to be measured for blocking connection are connect with the sound card, institute
The end face for stating support base is equipped with card slot, has the cavity for being connected to the card slot and the artificial ear in the support base, special
Sign is, the trial product to be measured includes that the first part of speaking is spoken part with second, and the card slot includes that the first card slot and second block
Slot, the described first part of speaking are fastened in first card slot, and the described second part of speaking is fastened in second card slot, described
First speak part and described second speak part the acoustic aperture that goes out pass through the cavity and be connected with the artificial ear.
2. test fixture according to claim 1, which is characterized in that the cavity include first passage, second channel with
And third channel, the first passage are connected to first card slot and the third channel, the second channel connection described the
Two draw-in groove and the third channel, the third channel are connected to the artificial ear.
3. test fixture according to claim 1, which is characterized in that be arranged between the sound card and the trial product to be measured
Power amplifier, the power amplifier are used to amplify the voice signal of the sound card output.
4. test fixture according to claim 3, which is characterized in that be provided with survey between the sound card and the artificial ear
Amplifier is measured, the measuring amplifier is used to amplify the voice signal that the trial product to be measured that the artificial ear picks up issues.
5. test fixture according to claim 4, which is characterized in that the test computer is issued for controlling the sound card
The first voice signal and second sound signal of different frequency range, and the first voice signal is sent to described first and spoken by control
Second sound signal is sent to described second and spoken part by part；
The power amplifier is used to amplify processing to the first voice signal and second sound signal, and treated the by general
One transmission of sound signals is spoken part to described first, will treated that second sound signal is transmitted to described second speaks part；
Described first part of speaking will receive that treated that the first voice signal passes through the branch by the power amplifier
Support seat is transmitted in the artificial ear；
Described second part of speaking will receive that treated that second sound signal passes through the branch by the power amplifier
Support seat is transmitted in the artificial ear；
The artificial ear be used for receive described first speak part sending the first voice signal and described second speak part sending
Second sound signal, and the sound card is transmitted to after measuring amplifier processing, the sound card will be put by the measurement
Big device treated the first voice signal and second sound signal are back to the test computer.
6. test fixture according to claim 5, which is characterized in that the test computer is believed according to the first sound of sending
Number, second sound signal and by the measuring amplifier processing after return the first voice signal, second sound signal come
Obtain described first speak part and described second speak part test result.
7. test fixture according to claim 1 to 6, which is characterized in that the side wall of the cavity is equipped with and lets out
Acoustic aperture, described first speak part and described second speak part go out acoustic aperture be connected by the cavity with the acoustic aperture of letting out, institute
It states cavity and lets out acoustic aperture and extraneous conducting by described.
8. test fixture according to claim 7, which is characterized in that the section for letting out acoustic aperture be round, rectangle or
Regular hexagon.
9. test fixture according to claim 1 to 6, which is characterized in that being sticked on the side wall of the cavity has
Sound-absorbing material.
10. test fixture according to claim 1 to 6, which is characterized in that the support base and the emulation
Sealing rubber ring is provided between ear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821035975.8U CN208386934U (en) | 2018-07-02 | 2018-07-02 | test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821035975.8U CN208386934U (en) | 2018-07-02 | 2018-07-02 | test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208386934U true CN208386934U (en) | 2019-01-15 |
Family
ID=64965567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821035975.8U Active CN208386934U (en) | 2018-07-02 | 2018-07-02 | test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208386934U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110557711A (en) * | 2019-08-30 | 2019-12-10 | 歌尔科技有限公司 | Earphone testing method and earphone |
-
2018
- 2018-07-02 CN CN201821035975.8U patent/CN208386934U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110557711A (en) * | 2019-08-30 | 2019-12-10 | 歌尔科技有限公司 | Earphone testing method and earphone |
| CN110557711B (en) * | 2019-08-30 | 2021-02-19 | 歌尔科技有限公司 | Earphone testing method and earphone |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103179495B (en) | The ear microphone of mobile terminal and the audio testing method of receiver and system | |
| EP3057333B1 (en) | Detection method and detection system for audio transmission characteristic of building intercom system | |
| CN109413557B (en) | Bluetooth headset testing system using android mobile phone as Bluetooth adapter and testing method thereof | |
| US6035046A (en) | Recorded conversation method for evaluating the performance of speakerphones | |
| WO2018233251A1 (en) | Wireless communication earphone test device and method | |
| CN111065035B (en) | Bone conduction earphone testing method and testing system | |
| CN102510418B (en) | Intelligibility of speech method of measurement under noise circumstance and device | |
| EP3166239A1 (en) | Method and system for scoring human sound voice quality | |
| CN104601769A (en) | Automatic mobile phone main board audio testing system | |
| US20230370788A1 (en) | Method, apparatus and system for testing a bone conduction communication device | |
| CN105323694B (en) | Seal verification method, package seal checker and sealing quality measuring system | |
| CN212013054U (en) | Noise-reduction earphone testing equipment | |
| CN208386934U (en) | test fixture | |
| CN107231597B (en) | Method and system for testing harmonic distortion value of loudspeaker | |
| CN110891236A (en) | Method and device for realizing production test of multi-microphone array | |
| CN111491248A (en) | Audio detection system and audio detection method of electronic product | |
| CN102164329B (en) | De-noising assembly and noise-eliminating method thereof | |
| CN105578375B (en) | A kind of microphone test device and test method | |
| CN208112957U (en) | Acoustic product test device and acoustic product detection system | |
| GB2610707A (en) | System and method for evaluating an ear seal using external stimulus | |
| CN105306685B (en) | The test method and mobile terminal of signal quality | |
| CN208590117U (en) | A kind of microphone test device and system | |
| CN205793348U (en) | A kind of electroacoustic device test fixture and a kind of electroacoustic device test system | |
| CN203167271U (en) | Microphone test device | |
| CN206948625U (en) | A kind of stereo sound field calibrator (-ter) unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |