CN107659884A - A kind of receiver acoustical testing device and acoustical testing system - Google Patents
A kind of receiver acoustical testing device and acoustical testing system Download PDFInfo
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- CN107659884A CN107659884A CN201710862033.0A CN201710862033A CN107659884A CN 107659884 A CN107659884 A CN 107659884A CN 201710862033 A CN201710862033 A CN 201710862033A CN 107659884 A CN107659884 A CN 107659884A
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- receiver
- test
- acoustical testing
- tested
- guide rail
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R29/00—Monitoring arrangements; Testing arrangements
Abstract
The invention discloses a kind of receiver acoustical testing device and receiver acoustical testing system, the device includes drive device and output device, the drive device includes support, guide rail, pushes component and testing and debugging device, be slidably installed guide rail on the support, be fixed for input test signal on the guide rail pushes component, and this pushes the docking location that component was adjusted and be tested receiver by the test adjusting means；The output device includes test bench, and positioning chamber and coupler are opened up on the test bench, and this, which is used to installing between the positioning chamber and coupler of tested receiver, sets sealing ring.The receiver acoustical testing device and system can realize automatic acoustical testing, and testing efficiency is higher, and test result is more accurate and improves the yields of product.
Description
Technical field
The present invention relates to acoustical testing technical field, is surveyed more particularly to a kind of receiver acoustical testing device and acoustics
Test system.
Background technology
Existing receiver generally refers to moving-iron receiver, and its operation principle is：The audio electrical signal feed-in voice coil loudspeaker voice coil of change,
Voice coil loudspeaker voice coil is placed in the magnetic gap of a magnetic circuit, and voice coil loudspeaker voice coil is because changing electromagnetic force, that is, Lorentz force caused by variable-current
Driving and up-down vibration, and drive vibrating membrane drive before and after air, produce sound wave.
Although the receiver type of also many other transduction principles, moving-iron receiver because of its higher cost performance, into
Ripe production technology, the appearance and size and lead-out mode of change, turn into the main flow of mobile phone and landline telephone middle pitch frequency terminal
Electro-acoustic element.
Moving-iron receiver includes shell, vibrating membrane, magnetic driving mechanism and circuit terminal with vibrating membrane drive connection,
In the prior art, vibrating membrane is generally positioned at enclosure and Shell is divided into ante-chamber and back cavity, the wall of ante-chamber
Body is provided with acoustic aperture, and acoustic aperture connects out sound pipe.
The acoustical testing of receiver is the important step in current receiver production technology, will be called by the device of machinery
Go out acoustic aperture, coupler and the microphone of device are tightly connected, and the driving electricity of different frequency is inputted from signal generator to receiver
Pressure, goes out acoustic pressure and the distortion factor of product by acoustical testing system-computed, so as to accurately judge the performance of receiver more, with full
The sufficient client performance requirement different to receiver.
Fig. 1 is refer to, showing the test device of current receiver mainly includes drive device 2 and output device 1.Driving
Device includes conductive structure.Because the performance test of receiver product requires different, the requirement of the conductive structure is also different.The drive
Dynamic device 2 is the free part with Test input signal.The output device 1 includes coupler.In test, the drive device
2 need that test signal is inputed into receiver 3 by testing needle, and existing such test operation leans on merely the proficiency of operator
Have been manually done.During test, receiver 3 is gone out to the sealing ring of sound pipe insertion output device manually, completed to being tested the first of receiver 3
Step is fixed, and the testing needle of drive device 2 is promoted to tested receiver 3, contacts testing needle and the circuit terminal of receiver 3,
It is determined that after having test signal, then press acoustical testing system button and tested.
But the receiver test device of prior art is due to being purely to manually complete test, therefore measurement error is big.And
And lean on the testing needle realization of operator's craft pushing meanss with the connection of circuit terminal, it is necessary to which operator spends longer time complete
Into alignment and confirm establish be electrically connected with work, easily caused because each testing needle contact point is variant test distortion or
Stability is poor.It is and pure to have been manually done test and adjustment position so that the low production efficiency of receiver.It is also, existing called
Device is tested, and receiver is not positioned fully, because easily top partially, causes receiver shell to testing needle when being manual operation test
Scratch, product quality hidden danger be present.
Therefore, existing receiver acoustical testing device and acoustical testing system have yet to be improved and developed.
The content of the invention
The embodiment of the present invention provide a kind of receiver acoustical testing device for realizing automatic test receiver acoustic feature with
Acoustical testing system, the device and system testing efficiency is higher, and test result is more accurate.
In a first aspect, the technical scheme that embodiment of the present invention provides is：A kind of receiver acoustical testing device is provided, wrapped
Drive device and output device are included, the drive device includes support, guide rail, pushes component and testing and debugging device, the branch
Be slidably installed guide rail on frame, and be fixed for input test signal on the guide rail pushes component, and this pushes component and passes through the test
Adjusting means adjusts the docking location with being tested receiver；The output device includes test bench, and positioning chamber is opened up on the test bench
And coupler, this, which is used to installing between the positioning chamber and coupler of tested receiver, sets sealing ring.
The Internal periphery of the positioning chamber of the receiver acoustical testing device is consistent with the form fit of the tested receiver, and this is fixed
The height of position chamber is less than the height of the tested receiver.
Preferably, the height of the positioning chamber is tested the half of receiver height for this.
The positioning of tested receiver during in order to ensure, the test bench is flexible, and the positioning chamber is dimensioned slightly smaller than tested
The profile of receiver.
Wherein, this push component include being fixed on the push-down head of guide rail, adjustable locating dowel installed in push-down head and
Conductive test pin.
The conductive test pin one end connects the signal input part of acoustical testing system, the test sensing of the acoustical testing system
Device is arranged in the coupler.
This push component be pressed together on the test bench positioning tested receiver on when, the end of the conductive test pin is positioning
The circuit terminal of the tested receiver is connected under the restriction of post, the test signal is inputed into the tested receiver.
Preferably, the test position of the locating dowel is tested the middle part of receiver, each testing needle sheathed spring for this.
When it is implemented, the testing and debugging device includes X-axis adjusting means, Y-axis adjusting means and Z axis adjusting means,
The X-axis adjusting means includes knob and the screw rod engaged with guide rail, and the Y-axis adjusting means includes knob and engaged with guide rail
Screw rod, the Z axis adjusting means includes knob and the screw rod that is engaged with guide rail.
Guide rail connection makes the drive cylinder that it is slided up and down, drive cylinder connection travel switch, and passes through magnetic valve
The acoustical testing system is connected to, the drive cylinder passes through the acoustical testing default preset strokes.
In order to accurately complete to test, after the tested receiver fills in positioning chamber, the seal of tube of speaking of the tested receiver is worn
Cross sealing ring and stretch into the coupler.
In order to determine whether tested receiver is completed to install and realize automatic test, close to sealing ring position in the coupler
Install the position sensor of connection acoustical testing system.
Coupler connection extension coupler.
Second aspect, the technical scheme that embodiment of the present invention provides are：A kind of acoustical testing system, including test are provided
The receiver acoustical testing device of terminal and preceding claims, wherein, tested receiver is positioned at receiver acoustics survey
On the output device that trial assembly is put, after the installation signal for receiving the tested receiver, the test terminal, which sends instruction, slides guide rail
Preset strokes, the tested receiver is docked, the test terminal is tested receiver to this and sends test signal after the completion of docking, then leads to
Cross the acoustical testing result that test sensor obtains test parameter and the tested receiver is determined according to the test parameter.
The beneficial effect of embodiment of the present invention is：The receiver acoustical testing device of the present embodiment and acoustical testing system
The receiver acoustical testing device is used in combination in system, the acoustical testing system, and automatic test receiver acoustic feature can be achieved, survey
Try more efficient, test result is more accurate；The guide rail combination output device that the receiver acoustical testing device passes through preset strokes
On location structure and test adjusting means, can accurately and efficiently dock the circuit terminal of testing needle and tested receiver, make
Acoustical testing system can be completed rapidly and accurately the test events such as sensitivity, the distortion factor, impedance, phase, degree of balance curve.Together
When, the receiver acoustical testing device and acoustics test system of the present embodiment eliminate the process for manually adjusting speaker position,
Receiver product casing is avoided to scratch hiding quality risk while improving efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of existing receiver acoustical testing device；
Fig. 2 is the test mode structural representation of the receiver acoustical testing device of the embodiment of the present invention；
Fig. 3 is the structural representation for pushing component of the receiver acoustical testing device of the embodiment of the present invention；
Fig. 4 is that the test bench of receiver acoustical testing device of the embodiment of the present invention and the internal sectional structure of base show
It is intended to；
Fig. 5 is the test mode partial cross structure chart of the receiver acoustical testing device of the embodiment of the present invention；And
Fig. 6 is the receiver test mode figure of the receiver acoustical testing device of the embodiment of the present invention.
Embodiment
For the purpose, technical scheme and advantage of the embodiment of the present invention are more clearly understood, below in conjunction with the accompanying drawings to this hair
Bright embodiment is described in further details.Here, the schematic description and description of the present invention is used to explain the present invention, but simultaneously
It is not as a limitation of the invention.
The present invention relates to receiver acoustical testing device and acoustical testing system.
The acoustical testing system uses existing acoustical testing system, and the parameters,acoustic for completing tested receiver is carried out
Measuring and calculating, for example complete the test events such as sensitivity, the distortion factor, impedance, phase, degree of balance curve.The acoustics of the application is surveyed simultaneously
Test system is also connected with guide rail, conductive test pin and the position sensor of acoustical testing device setting, realizes automation receiver
Acoustical testing.
Generally speaking, the receiver acoustical testing device includes drive device and output device.The drive device includes
Support, guide rail, component and testing and debugging device are pushed, be slidably installed guide rail on the support, is fixed with the guide rail for defeated
Enter test signal pushes component, and this pushes the docking location that component was adjusted and be tested receiver by the test adjusting means.
The output device includes test bench, and positioning chamber and coupler are opened up on the test bench, and this is used for the positioning for installing tested receiver
Sealing ring is set between chamber and coupler.
Wherein, tested receiver is positioned in the coupler of the output device, and the test terminal is received by position sensor
To after the installation signal of tested receiver, sending instruction makes guide rail slide preset strokes, and it is tested called that testing needle is docked into this
On the circuit terminal of device, the test terminal is tested receiver to this and sends test signal after the completion of docking, then is sensed by testing
Device obtains test parameter and the acoustical testing result of the tested receiver is determined according to the test parameter.
The receiver acoustical testing device and acoustical testing system of the present invention, using vertical guide rail structure so that test
Pin and docking for circuit terminal are more stable, and need not manually adjust the position location of product, and whole test process only needs will be by
After words device product section is put into positioning cavity, test is automatically performed, and is substantially increased yields, production efficiency, is reduced life
Cost is produced, and avoids and scratches hidden danger because product space changes the product casing brought.
Embodiment 1
The present embodiment provides a kind of receiver acoustical testing device, including drive device and output device.
As shown in figure 4, the tested receiver 50 includes stretching out a pair of circuit terminals 52 of shell and goes out sound pipe 54.
2 and Fig. 5 is refer to, the drive device includes support 10, guide rail 12, pushes component and testing and debugging device.
In the present embodiment, the guide rail 12 is vertically mounted on the support 10.Vertical track is set on the support 10, the guide rail 12 slides peace
On vertical track.
What the lower end of guide rail 12 was fixed for input test signal pushes component.This pushes component and adjusts dress by the test
Put the docking location of the tested receiver in adjustment lower section.
Fig. 3 is refer to, this, which pushes component, includes being fixed on the push-down head 30 of guide rail 12, can adjust installed in push-down head 30
Locating dowel 32 and conductive test pin 34.
The signal input part of the test terminal of the one end of conductive test pin 34 connection acoustical testing system, the acoustical testing system
The test sensor of system is arranged in the output device.
The locating dowel 32 is shorter in length than the length to testing needle 34.It is defeated that the push-down head 30 for pushing component is pressed together on this
When going out on the tested receiver of device positioning, the locating dowel 32 first contacts the shell of tested receiver, in the limit of the locating dowel 32
Under position, the end of the conductive test pin 34 is electrically connected the circuit terminal 52 of the tested receiver, and test signal is inputed to
The tested receiver 50.
The testing and debugging device includes X-axis adjusting means, Y-axis adjusting means and Z axis adjusting means.X-axis regulation dress
Put including X-axis knob 41 and the screw rod engaged with guide rail 12, the Y-axis adjusting means include Y-axis knob 45 and with guide rail 12
The screw rod of engagement, the Z axis adjusting means includes Z axis knob and the screw rod engaged with guide rail 12, for finely tuning the testing needle 34
In the position of Z-direction.
As shown in figure 4, the output device includes test bench 60, support base and fixed seat 80.The fixed seat 80 is base,
The middle part boring device support base of fixed seat 80.The test bench 60 includes positioning sleeve and the connecting seat being sleeved in the positioning sleeve
85.Positioning chamber 62 is opened up at the top of the positioning sleeve of the test bench 60, the center of connecting seat 85 opens up coupler 64.This is used to install quilt
Sealing ring 70 is set between the positioning chamber 62 and coupler 64 of survey receiver.
The middle part of sealing ring 70 goes out sound pipe 54 formed with mounting hole, the aperture of the mounting hole less than the tested receiver 50
External diameter, after ensureing receiver installation, the passage of speaking for going out the formation sealing of sound pipe 54 avoids sound wave from revealing.
In order to realize test, the test sensor of the acoustical testing system is arranged in the coupler 64 to obtain test ginseng
Number.
In the present embodiment, in order to realize stable positioning, the Internal periphery of the positioning chamber 62 of the receiver acoustical testing device
It is consistent with the form fit that this is tested receiver.Simultaneously for the ease of the docking operation between testing needle 34 and circuit terminal 52,
The height of the positioning chamber 62 is less than the height of the tested receiver, tested receiver is stretched on the test bench, and and can is protected
The location and installation of card test needs.
In a preferred embodiment, the height of the positioning chamber 62 is tested the half of receiver height for this.
Or the positioning that this is tested receiver during in order to ensure, the receiver can in an interference fit be arranged on and survey
Try on seat 60, in this embodiment, the test bench 60 has the elasticity of setting, and the positioning chamber is dimensioned slightly smaller than tested receiver
Profile.
In the present embodiment, the test position of the locating dowel 32 is tested the middle part of receiver, a side for this in docking operation
Face is to ensure to form good electrical connection between testing needle 34 and circuit terminal 52, avoids contact with bad, is on the other hand also
Tested receiver is avoided because of sidepiece stress, and influences test accuracy.
Good electrical connection, each 34 sets of testing needle are formed in order to be further ensured that between testing needle 34 and circuit terminal 52
If spring 36 so that even if in the presence of smaller error, the testing needle 34 can also be pressed close in the circuit end by the active force of spring 36
On son 52.
In the present embodiment, the guide rail 12 connection makes the drive cylinder that it is slided up and down.The drive cylinder connects travel switch,
And the acoustical testing system is connected to by magnetic valve, the drive cylinder passes through the acoustical testing default preset strokes.
For example if to realize Traffic control system on drive cylinder, drive cylinder is connected to travel switch, driving
Take offence and add permanent-magnet block on the piston of cylinder, the orientation of piston is induced with Hall switch, then by Hall switch
The relay of contact manipulation commutation, and then constrain the purpose of stroke.By manipulating magnetic valve, stroke is arbitrarily adjusted.
In order to accurately complete to test, after the tested receiver fills in positioning chamber 62, the sound pipe 54 that goes out of the tested receiver leads to
Cross the aperture hermetically passing of seal 70 sealing ring 70 and stretch into the coupler 64.
In order to determine whether tested receiver is completed to install and realize automatic test, close to sealing ring 70 in the coupler
Position sets the position sensor of connection acoustical testing system.
Fig. 4 is refer to, in another embodiment, in order to obtain the test parameter for more having reference value, is opened in the support base
If extend coupler 86.The coupler 64 connection extension coupler 86.
Fig. 6 is refer to, the test of acoustical testing device of the present invention is as follows using process：
The right angle setting of guide rail 12 over the mount 10, and is slided up and down by the drive cylinder driving with setting stroke.It is sliding
The dynamic drive of guide rail 12 lower end installation pushes component, and the test bench 60 towards the output device is close.The positioning of the test bench 60
Chamber 62 is designed as the cavity to match with receiver profile, the highly height less than receiver, such as, cavity depth is receiver
The 1/2 of overall length.The profile of the positioning chamber 62 just houses receiver, in order to not influence to dock work while receiver is positioned
Make.The startup of the driving, toggle switch can be both set, it is descending under drive cylinder effect that component is pushed after starting switch.Or
Person sends a signal to relay by the test terminal of acoustical testing system, starts drive cylinder and works and drive this to push under component
Row motion.Push component to continue traveling downwardly under the drive of the guide rail 12, make testing needle 34 with descending and tested receiver electricity
Road terminal docking.After the completion of docking, such as, in the present embodiment, the test terminal of acoustical testing system sends detectable signal, receives
Think that docking has succeeded during feedback, the test terminal starts acoustics to tested receiver input test signal, such as voice data
Test.Now, due to the active force of the contained spring 36 of testing needle 34, testing needle 34 is made fully to be contacted with circuit terminal 52, meanwhile,
Receiver 50 goes out the hermetically passing sealing ring 70 of sound pipe 54, by receiver 50 go out sound pipe 54 and sealing ring 70 is closely sealed, to reach
Best test effect.
Embodiment 2
The present embodiment is directed to use with the acoustical testing system of the receiver acoustical testing device, if including test terminal and
Dry test sensor.
The test terminal connects the drive cylinder of the receiver acoustical testing device.Test terminal connection is arranged on coupling
Position sensor of the chamber 64 close to sealing ring 70.One end of testing needle 34 of the receiver acoustical testing device connects the test terminal
Signal input part, the test sensor of the acoustical testing system is arranged in the coupler 64 or extension coupler 86.
Wherein, tested receiver is positioned in the positioning chamber 62 by output device test bench, receives the tested receiver
Installation signal after, the test terminal, which sends instruction, makes guide rail 12 slide preset strokes, docks the tested receiver, and docking is completed
The test terminal is tested receiver to this and sends test signal afterwards, then obtains test parameter and according to the survey by testing sensor
Examination parameter determines the acoustical testing result of the tested receiver.
The acoustical testing system of the application is by connecting the conductive test pin 34 and position that acoustical testing device is set simultaneously
Sensor is put, realizes automation receiver acoustical testing.
The test of acoustical testing system of the present invention is as follows using process：
When tested receiver is attached to test bench, position sensor sends information to the acoustical testing system and represents tested
Product has installed ready, acoustical testing system startup test.
The test terminal starts drive cylinder, drives and pushes component downward movement and start pair with the circuit terminal of receiver
Connect work.The drive of the guide rail 12 lower end installation of slip pushes component, and the test bench 60 towards the output device is close.The test bench
60 positioning chamber 62 is designed as the cavity to match with receiver profile, the highly height less than receiver, the positioning chamber 62
Profile just houses receiver, in order to not influence mating operation while receiver is positioned.Component is pushed in the guide rail 12
Drive under continue traveling downwardly, testing needle 34 is docked with the descending circuit terminal with tested receiver.After the completion of docking, than
Such as, in the present embodiment, the test terminal of acoustical testing system sends detectable signal, thinks that docking has succeeded when receiving feedback, should
Terminal is tested to tested receiver input test signal, such as voice data, while in coupler 64 or extension coupler 86
Collecting test parameter, and acoustical testing is completed by the test terminal, export acoustical testing result.
The receiver acoustical testing device and acoustics test system of the present invention, it is called that this is used in combination in the acoustical testing system
Device acoustical testing device, automatic test receiver acoustic feature can be achieved, testing efficiency is higher, and test result is more accurate；Should be by
Device acoustical testing device is talked about to combine the location structure on output device by the guide rail 12 of preset strokes and test adjusting means,
The circuit terminal of testing needle 34 and tested receiver can be accurately and efficiently docked, makes acoustical testing system quickly and accurately complete
Into test events such as sensitivity, the distortion factor, impedance, phase, degree of balance curves.Meanwhile the receiver acoustical testing of the present embodiment
Device and acoustics test system eliminate the process for manually adjusting speaker position, and receiver product is avoided while improving efficiency
Shell scratches hiding quality risk.
Embodiments of the present invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this
The equivalent structure or equivalent flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other correlations
Technical field, it is included within the scope of the present invention.
Claims (14)
1. a kind of receiver acoustical testing device, including drive device and output device, it is characterised in that the drive device
Including support, guide rail, component and testing and debugging device are pushed, be slidably installed guide rail on the support, fixed on the guide rail
It is described to push component by the test adjusting means adjustment with being tested receiver for the component that pushes of input test signal
Docking location；The output device includes test bench, and positioning chamber and coupler are opened up on the test bench, described to be used to install quilt
Sealing ring is set between the positioning chamber and coupler of survey receiver.
2. receiver acoustical testing device according to claim 1, it is characterised in that the Internal periphery of the positioning chamber and institute
State that the form fit of tested receiver is consistent, the height of the positioning chamber is less than the height of the tested receiver.
3. receiver acoustical testing device according to claim 2, it is characterised in that the height of the positioning chamber is described
The half of tested receiver height.
4. receiver acoustical testing device according to claim 1, it is characterised in that the test bench is flexible, institute
State the profile that positioning chamber is dimensioned slightly smaller than the tested receiver.
5. receiver acoustical testing device according to claim 1, it is characterised in that the component that pushes includes being fixed on
The push-down head of guide rail, adjustable locating dowel and conductive test pin installed in push-down head.
6. receiver acoustical testing device according to claim 5, it is characterised in that conductive test pin one end connection
The signal input part of acoustical testing system, the test sensor of the acoustical testing system are arranged in the coupler.
7. receiver acoustical testing device according to claim 6, it is characterised in that it is described push component be pressed together on it is described
When on the tested receiver of test bench positioning, the end of the conductive test pin connected under the restriction of locating dowel it is described it is tested by
The circuit terminal of device is talked about, the test signal is inputed into the tested receiver.
8. receiver acoustical testing device according to claim 7, it is characterised in that the test position of the locating dowel is
The middle part of the tested receiver, each testing needle sheathed spring.
9. the receiver acoustical testing device according to claim any one of 1-8, it is characterised in that the testing and debugging dress
Put including X-axis adjusting means, Y-axis adjusting means and Z axis adjusting means, the X-axis adjusting means includes knob and with leading
The screw rod of rail engagement, the Y-axis adjusting means, which includes knob and the screw rod engaged with guide rail, the Z axis adjusting means, to be included
Knob and the screw rod engaged with guide rail.
10. receiver acoustical testing device according to claim 9, it is characterised in that the guide rail connection makes above and below it
The drive cylinder of slip, the drive cylinder connects travel switch, and is connected to the acoustical testing system, institute by magnetic valve
State drive cylinder and pass through the acoustical testing default preset strokes.
11. receiver acoustical testing device according to claim 10, it is characterised in that the tested receiver is filled in fixed
After the chamber of position, the seal of tube of speaking of the tested receiver stretches into the coupler through sealing ring.
12. receiver acoustical testing device according to claim 11, it is characterised in that close to sealing in the coupler
Enclose the position sensor that position sets connection acoustical testing system.
13. receiver acoustical testing device according to claim 12, it is characterised in that the coupler connection extension coupling
Close chamber.
14. a kind of acoustical testing system, including test terminal and the receiver acoustical testing dress as described in claim 1-13
Put, wherein, tested receiver is positioned on the output device of the receiver acoustical testing device, and the test terminal receives institute
After the installation signal for stating tested receiver, sending instruction makes the guide rail slide preset strokes, to dock the tested receiver,
The test terminal sends test signal to the tested receiver after the completion of docking, then obtains test ginseng by testing sensor
Number simultaneously determines the acoustical testing result of the tested receiver according to the test parameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710862033.0A CN107659884B (en) | 2017-09-21 | 2017-09-21 | Acoustic testing device and acoustic testing system for telephone receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710862033.0A CN107659884B (en) | 2017-09-21 | 2017-09-21 | Acoustic testing device and acoustic testing system for telephone receiver |
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| Publication Number | Publication Date |
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| CN107659884A true CN107659884A (en) | 2018-02-02 |
| CN107659884B CN107659884B (en) | 2020-02-28 |
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| CN201710862033.0A Active CN107659884B (en) | 2017-09-21 | 2017-09-21 | Acoustic testing device and acoustic testing system for telephone receiver |
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| CN101419130A (en) * | 2008-11-18 | 2009-04-29 | 奇瑞汽车股份有限公司 | Automobile control panel test fixture |
| CN201657318U (en) * | 2010-02-10 | 2010-11-24 | 歌尔声学股份有限公司 | Acoustic performance testing device |
| US20120097012A1 (en) * | 2010-10-22 | 2012-04-26 | Yamaha Corporation | Sound to light converter and sound field visualizing system |
| CN205246799U (en) * | 2015-12-22 | 2016-05-18 | 湖南音品电子有限公司 | Loudspeaker polarity and automatic testing arrangement of impedance |
| CN205902077U (en) * | 2016-07-06 | 2017-01-18 | 深圳市方博仪器有限公司 | Loudspeaker body measuring device |
| CN106404303A (en) * | 2016-11-07 | 2017-02-15 | 捷开通讯(深圳)有限公司 | Horn airtightness detector |
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2017
- 2017-09-21 CN CN201710862033.0A patent/CN107659884B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101419130A (en) * | 2008-11-18 | 2009-04-29 | 奇瑞汽车股份有限公司 | Automobile control panel test fixture |
| CN201657318U (en) * | 2010-02-10 | 2010-11-24 | 歌尔声学股份有限公司 | Acoustic performance testing device |
| US20120097012A1 (en) * | 2010-10-22 | 2012-04-26 | Yamaha Corporation | Sound to light converter and sound field visualizing system |
| CN205246799U (en) * | 2015-12-22 | 2016-05-18 | 湖南音品电子有限公司 | Loudspeaker polarity and automatic testing arrangement of impedance |
| CN205902077U (en) * | 2016-07-06 | 2017-01-18 | 深圳市方博仪器有限公司 | Loudspeaker body measuring device |
| CN106404303A (en) * | 2016-11-07 | 2017-02-15 | 捷开通讯(深圳)有限公司 | Horn airtightness detector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107659884B (en) | 2020-02-28 |
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Effective date of registration: 20210812 Address after: 518000 No.3 Factory, Qiaotou Fuqiao Industrial Zone, Fuyong Town, Bao'an District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN EVERWIN PRECISION TECHNOLOGY Co.,Ltd. Address before: 518000 2nd floor, building 25, Zhiheng Industrial Park, nantouguankou 2nd Road, Nanshan District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN BELLSING ACOUSTIC TECHNOLOGY Co.,Ltd. |