CN106998524A - Loudspeaker test device and loudspeaker test equipment - Google Patents
Loudspeaker test device and loudspeaker test equipment Download PDFInfo
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- CN106998524A CN106998524A CN201710426418.2A CN201710426418A CN106998524A CN 106998524 A CN106998524 A CN 106998524A CN 201710426418 A CN201710426418 A CN 201710426418A CN 106998524 A CN106998524 A CN 106998524A
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- 238000012360 testing method Methods 0.000 title claims abstract description 48
- 239000000919 ceramic Substances 0.000 claims abstract description 91
- 230000005236 sound signal Effects 0.000 claims abstract description 23
- 238000009434 installation Methods 0.000 claims description 19
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 6
- 229910052573 porcelain Inorganic materials 0.000 claims description 3
- 230000003321 amplification Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Classifications
-
- 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
- H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Abstract
The invention provides a kind of loudspeaker test device and loudspeaker test equipment, it is related to the technical field of electronic component detection, loudspeaker test device includes audio input device, power amplifier and multiple loudspeaker incoming ends；Power amplifier is electrically connected with audio input device, and multiple loudspeaker incoming ends are electrically connected with power amplifier；Power amplifier is used to amplify the audio signal of audio input device；Multiple loudspeaker incoming ends are used to electrically connect with multiple piezoelectric ceramic loudspeakers respectively.In use, user can be by listening to the sound that each piezoelectric ceramic loudspeaker is sent, best one piezoelectric ceramic loudspeaker of selection tone color, so as to select for this specific audio signal, the piezoelectric ceramic loudspeaker of best results, you can determine most suitable size.
Description
Technical field
The present invention relates to electronic component detection technique field, surveyed more particularly, to a kind of loudspeaker test device and loudspeaker
Try equipment.
Background technology
Piezoelectric ceramic loudspeaker is a kind of function element for electric signal being changed into acoustical signal.Nineteen nineties
Just, the appearance of piezoelectric ceramic loudspeaker generates serious impact to electrodynamic type coil loud speaker.Due to piezoelectric ceramic loudspeaker
Without magnetic circuit and voice coil loudspeaker voice coil, therefore it enjoys more design spaces in volume, and this is also that piezoelectric ceramic loudspeaker is extensive
One of major reason of concern and application.Piezoelectric ceramic loudspeaker is mainly inverse by the piezoelectric ceramic piece generation of inside loudspeakers
Piezo-electric effect realizes a kind of electroacoustic translation function device mutually changed between electricity and acoustics.Because it has ultra-thin thickness
Degree, simple structure, without electromagnetic interference, ultralow power consumption the advantages of, piezoelectric ceramic loudspeaker gradually portable is disappeared by numerous
Expense electronic product is favored, and is widely used in portable mobile terminal equipment, and as loudspeaker competitive field
Outstanding person.
The basic functional principle of piezoelectric ceramic loudspeaker is that electric signal is transformed into mechanical signal, make piezoelectric ceramic piece and
Metallic membrane vibrates, and drives the air on periphery to vibrate, air is sent sound, so that between realizing " electricity-power-sound "
Energy conversion.Piezoelectric ceramic loudspeaker is relative to conventional coil loudspeaker, and it does in thickness, service life, power consumption, electromagnetic field
Disturb, have great advantage in terms of cost of manufacture.
At present, in high-fidelity music center field, frequently with piezoelectric ceramic loudspeaker as loudspeaker, but piezoelectric ceramics is raised
The equipment of the special reliability testing of sound device still has blank.Because the good and bad influence to tonequality of its performance is very big.Therefore, such as
What can be directed to specific audio signal, select the piezoelectric ceramic loudspeaker of most suitable size, and this problems demand is solved.
The content of the invention
It is an object of the invention to provide a kind of loudspeaker test device and loudspeaker test equipment, to improve existing skill
There is no a kind of equipment of reliability testing present in art, specific audio signal can be directed to, most suitable size is selected
Piezoelectric ceramic loudspeaker technical problem.
The loudspeaker test device that the present invention is provided, including audio input device, power amplifier and multiple loudspeakers connect
Enter end；Power amplifier is electrically connected with audio input device, and multiple loudspeaker incoming ends are electrically connected with power amplifier；Power is put
Big device is used to amplify the audio signal of audio input device；Multiple loudspeaker incoming ends are used to raise one's voice with multiple piezoelectric ceramics respectively
Device is electrically connected.
Further, loudspeaker test device also includes selecting switch；Selecting switch respectively with power amplifier and multiple
Loudspeaker incoming end is electrically connected, for by the circuit communication of loudspeaker incoming end and power amplifier or disconnection.
Further, loudspeaker test device also includes regulation switch；Regulation switch respectively with power amplifier and audio
Loader is electrically connected, and is inputted for adjusting from audio input device to the volume of the audio signal of power amplifier.
Further, loudspeaker test device also includes Current Voltage detector；Stream Voltage detector is put with power respectively
Big device and loudspeaker incoming end electrical connection, electric current and electricity for detecting circuit between power amplifier and loudspeaker incoming end
Pressure.
Further, loudspeaker test device also includes decibel value detector；Decibel value detector is used to detect that piezoelectricity is made pottery
Porcelain loudspeaker sends the decibel value of sound.
Further, loudspeaker test device also includes fixture and the multiple installation portions being arranged on fixture；It is many
Individual loudspeaker incoming end is arranged on fixture；Multiple installation portions are used to multiple piezoelectric ceramic loudspeakers be fixedly mounted respectively.
Further, installation portion is the installation neck that piezoelectric ceramic loudspeaker is set for card.
Further, loudspeaker test device also includes shell；Shell is located at outside audio input device and power amplifier.
Further, it is provided with fixed pedestal on the inwall of shell；Power amplifier and audio input device are and fixed base
Seat is fixedly connected.
Further, present invention also offers a kind of loudspeaker test equipment, loudspeaker test equipment includes frequency detecting
Instrument and loudspeaker test device.
The loudspeaker test device that the present invention is provided, in use, audio input device export specific audio signal,
And it is transferred to power amplifier；Power amplifier is transferred to multiple loudspeaker incoming ends after audio signal is amplified.User will
Various sizes of piezoelectric ceramic loudspeaker is linked into after multiple loudspeaker incoming ends, and multiple piezoelectric ceramic loudspeakers can send sound
Sound.Because the size of multiple piezoelectric ceramic loudspeakers is differed, therefore the sound timbre that each piezoelectric ceramic loudspeaker is sent
Also it is different.User can be by listening to the sound that each piezoelectric ceramic loudspeaker is sent, selection tone color best one piezoelectricity pottery
Porcelain loudspeaker, so as to select for this specific audio signal, the piezoelectric ceramic loudspeaker of best results, you can determine
Most suitable size.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of loudspeaker detection means provided in an embodiment of the present invention；
Fig. 2 is the part-structure schematic diagram of loudspeaker detection means provided in an embodiment of the present invention；
Fig. 3 is the part-structure schematic diagram of the piezoelectric ceramic loudspeaker shown in Fig. 1；
The part-structure schematic diagram for the loudspeaker detection means that Fig. 4 provides for another embodiment of the present invention.
Icon：1- audio input devices；2- power amplifiers；3- loudspeaker incoming ends；4- piezoelectric ceramic loudspeakers；5- is selected
Switch；6- regulation switches；7- Current Voltage detectors；8- fixtures；9- installation portions；10- installs neck；11- bottom plates；12- is recessed
Groove；Electrode in 13-；21- power amplifier elements；22- power supplys；91- supports；92- fixes buckle.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, such as occur term " " center ", " on ", " under ", "left", "right",
" vertical ", " level ", " interior ", " outer " etc., orientation or position relationship indicated by it are based on orientation shown in the drawings or position
Relation, is for only for ease of the description present invention and simplifies description, rather than indicate or imply that the device or element of meaning must have
There is specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, as occurred
Term " first ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or implying relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Fig. 1 is the structural representation of loudspeaker detection means provided in an embodiment of the present invention；As shown in figure 1, the present embodiment
The loudspeaker test device of offer, including audio input device 1, power amplifier 2 and multiple loudspeaker incoming ends 3；Power is put
Big device 2 is electrically connected with audio input device 1, and multiple loudspeaker incoming ends 3 are electrically connected with power amplifier 2；Power amplifier 2 is used
Amplify in by the audio signal of audio input device 1；Multiple loudspeaker incoming ends 3 be used for respectively with multiple piezoelectric ceramic loudspeakers 4
Electrical connection.
Wherein, the type of audio input device 1 can be to be a variety of, such as：Mobile phone, tablet personal computer and radio etc..
Further, power amplifier 2 should include power amplifier element 21 and power supply 22, and power supply 22 is electrically connected with power amplifier element 21
Connect, in use, power supply 22 is used to power to power amplifier element 21, and one end and the audio input device 1 of power amplifier element 21 are electrically connected
Connect, the other end is electrically connected with multiple loudspeaker incoming ends 3, for amplifying and being transferred to many audio signal of audio input device 1
Individual loudspeaker incoming end 3.
Further, multiple loudspeaker incoming ends 3 should be electrically connected with various sizes of piezoelectric ceramic loudspeaker 4.
The loudspeaker test device that the present embodiment is provided, in use, audio input device 1 export specific audio letter
Number, and it is transferred to power amplifier 2；Power amplifier 2 is transferred to multiple loudspeaker incoming ends 3 after audio signal is amplified.Make
Various sizes of piezoelectric ceramic loudspeaker 4 is linked into after multiple loudspeaker incoming ends 3 by user, multiple piezoelectric ceramic loudspeakers 4
Sound can be sent.Because the size of multiple piezoelectric ceramic loudspeakers 4 is differed, therefore each piezoelectric ceramic loudspeaker 4 is sent out
The sound timbre gone out is also different.User can be by listening to the sound that each piezoelectric ceramic loudspeaker 4 is sent, and selection tone color is best
A piezoelectric ceramic loudspeaker 4, so as to select for this specific audio signal, the piezoelectric ceramics of best results is raised one's voice
Device 4, you can determine most suitable size.
As shown in figure 1, on the basis of above-described embodiment, further, loudspeaker test device also includes selecting switch
5；Selecting switch 5 is electrically connected with power amplifier 2 and multiple loudspeaker incoming ends 3 respectively, for by loudspeaker incoming end 3 and work(
The circuit communication of rate amplifier 2 or disconnection.
Wherein, it can be connected in parallel between multiple loudspeaker incoming ends 3.In use, user is by audio input
Device 1 is electrically connected with power amplifier 2, the audio signal access of audio input device 1；Then user will be many by selecting switch 5
Individual loudspeaker incoming end 3 is electrically connected with power amplifier 2 respectively, so that make multiple piezoelectric ceramic loudspeakers 4 send sound respectively,
The piezoelectric ceramic loudspeaker 4 wherein with optimal tone color can be told, the size of the piezoelectric ceramic loudspeaker 4 is to be directed to
The most suitable size of this specific audio signal.
Further, user can also by multiple piezoelectric ceramic loudspeakers 4 points be some groups, by 5 points of selecting switch
Every group of corresponding loudspeaker incoming end 3 is not electrically connected with power amplifier 2, so as to make every group of piezoelectric ceramic loudspeaker 4 same
When send sound, you can tell one group of piezoelectric ceramic loudspeaker 4 of optimal tone color, the piezoelectric ceramic loudspeaker 4 of the group
Size is the most suitable packet size for this specific audio signal.
In the present embodiment, loudspeaker test device also includes selecting switch 5.In use, selecting switch 5 is used to incite somebody to action
Circuit communication or disconnection of the loudspeaker incoming end 3 with power amplifier 2.When circuit communication, loudspeaker incoming end 3 is corresponding
Piezoelectric ceramic loudspeaker 4 sends sound, when a circuit is open.The corresponding piezoelectric ceramic loudspeaker 4 of loudspeaker incoming end 3 can not be sent out
Go out sound.The setting of selecting switch 5 can make user according to sense of hearing hobby or actual demand, and the piezoelectricity listened to is wanted in selection
The sound of ceramic loudspeaker 4, identification of being so more convenient for, and the accuracy of judgement can be improved.
As shown in figure 1, on the basis of above-described embodiment, further, loudspeaker test device also includes regulation switch
6；Regulation switch 6 is electrically connected with power amplifier 2 and audio input device 1 respectively, is inputted for adjusting from audio input device 1 to work(
The volume of the audio signal of rate amplifier 2.
In the present embodiment, in use, user can control to input from audio input device 1 by adjusting switch 6
To the volume of the audio signal of power amplifier 2, so as to adjust the size for the sound that piezoelectric ceramic loudspeaker 4 is sent.Adjust
The setting of section switch 6 can make user according to surrounding environment, to change the size for the sound that piezoelectric ceramic loudspeaker 4 is sent,
It is easy to not hear the tone color situation of various sizes of piezoelectric ceramic loudspeaker 4, convenient identification improves the accuracy judged.
As shown in figure 1, on the basis of above-described embodiment, further, loudspeaker test device also includes Current Voltage
Detector 7；Stream Voltage detector is electrically connected with power amplifier 2 and loudspeaker incoming end 3 respectively, for detecting power amplifier
The electric current and voltage of circuit between 2 and loudspeaker incoming end 3.
In the present embodiment, loudspeaker test device also includes Current Voltage detector 7, and Current Voltage detector 7 is used to examine
The electric current and voltage of circuit between measurement of power rate amplifier 2 and loudspeaker incoming end 3.In use, when power amplifier 2
During circuit communication between loudspeaker incoming end 3, current electric current and voltage can be shown on Current Voltage detector 7；Work as work(
, can not display data or display on Current Voltage detector 7 when circuit between rate amplifier 2 and loudspeaker incoming end 3 disconnects
Data are zero.This set can make whether the timely discovery circuit of user connects, and whether there is damage, and device can normally be run.
On the basis of above-described embodiment, further, loudspeaker test device also includes decibel value detector；Decibel value
Detector is used to detect that piezoelectric ceramic loudspeaker 4 sends the decibel value of sound.
Wherein, decibel value detector should be arranged on close proximity to the position of piezoelectric ceramic loudspeaker 4, can so reduce the external world
The interference of environment.
In the present embodiment, in use, when piezoelectric ceramic loudspeaker 4 sends sound, decibel value detector can
Show that current piezoelectric ceramic loudspeaker 4 sends the decibel value of sound, be easy to user to understand current piezoelectric ceramic loudspeaker 4 and send
The size of sound.
Fig. 2 is the part-structure schematic diagram of loudspeaker detection means provided in an embodiment of the present invention；Fig. 3 is shown in Fig. 1
The part-structure schematic diagram of piezoelectric ceramic loudspeaker；As shown in Figures 2 and 3, on the basis of above-described embodiment, further,
Loudspeaker test device also includes fixture 8 and the multiple installation portions 9 being arranged on fixture 8；Multiple loudspeaker incoming ends 3
On fixture 8；Multiple installation portions 9 are used to multiple piezoelectric ceramic loudspeakers 4 be fixedly mounted respectively.
Wherein, interior electrode 13 is provided with piezoelectric ceramic loudspeaker 4, interior electrode 13 is electrically connected with loudspeaker incoming end 3.
Further, loudspeaker detection means can also include bottom plate 11；Fixture 8 can be fixed plate, and fixed plate is solid
Surely it is arranged on one end of the upper surface of bottom plate 11；Multiple loudspeaker incoming ends 3 are arranged in fixed plate, piezoelectric ceramic loudspeaker 4
Simultaneously the upper surface with bottom plate 11 is abutted.
Further, installation portion 9 can include support 91 and fixed buckle 92.Support 91 and the fixation of fixed buckle 92 are set
Put in the upper surface of bottom plate 11.Support 91 is abutted with the one end of piezoelectric ceramic loudspeaker 4 away from loudspeaker incoming end 3, for limiting
The motion of piezoelectric ceramic loudspeaker 4 processed along a first direction.Wherein first direction is that support 91 is abutted with piezoelectric ceramic loudspeaker 4
One end and loudspeaker incoming end 3 line direction.One end of fixed buckle 92 is hinged with bottom plate 11, and the other end is used to be pressed in
One side of the electroceramics loudspeaker 4 away from bottom plate 11, bottom plate 11 and fixed buckle 92 coordinate to limit piezoelectric ceramic loudspeaker 4 along the
Move in two directions.Wherein second direction is perpendicular to the direction of the upper surface of piezoelectric ceramic loudspeaker 4.In use, use
Piezoelectric ceramic loudspeaker 4 is placed on bottom plate 11 by person, makes the interior electrode 13 and loudspeaker incoming end 3 of piezoelectric ceramic loudspeaker 4
Electrical connection, and one end of piezoelectric ceramic loudspeaker 4 is abutted with support 91；Then fixed buckle 92 is adjusted, makes to fix buckle 92
One end be pressed in the one side of piezoelectric ceramic loudspeaker 4, so as to fix piezoelectric ceramic loudspeaker 4.
Further, fixed buckle 92 may be configured as multiple.What can so piezoelectric ceramic loudspeaker 4 be fixed is more steady
It is fixed.
In the present embodiment, loudspeaker test device includes fixture 8 and multiple installation portions 9.In use, it is multiple
Piezoelectric ceramic loudspeaker 4 is separately fixed on multiple installation portions 9, and piezoelectric ceramic loudspeaker 4 is raised one's voice with multiple on fixture 8
Device incoming end 3 is electrically connected, to ensure the connection of circuit, so as to make piezoelectric ceramic loudspeaker 4 send sound.Fixture 8 and multiple
The setting of installation portion 9 can make what piezoelectric ceramic loudspeaker 4 was connected with loudspeaker incoming end 3 more to stablize, it is ensured that device is just
Often operation.
The part-structure schematic diagram for the loudspeaker detection means that Fig. 4 provides for another embodiment of the present invention, as shown in figure 4,
On the basis of above-described embodiment, further, installation portion 9 is the installation neck 10 that piezoelectric ceramic loudspeaker 4 is set for card.
Wherein, groove 12 is also provided with installation portion 9, groove 12 is arranged on the edge on the one side for installing neck 10.
In use, when user needs, from when installing taking-up piezoelectric ceramic loudspeaker 4 in neck 10, finger can be placed in into groove
At 12, firmly one end of piezoelectric ceramic loudspeaker 4 is lifted upwards, then whole piezoelectric ceramic loudspeaker 4 is taken out.Groove 12
Setting can convenient use person by piezoelectric ceramic loudspeaker 4 from install neck 10 in take out.
In the present embodiment, install neck 10 set piezoelectric ceramic loudspeaker 4 for card, this set is simple to operate, cost compared with
It is low.
On the basis of above-described embodiment, further, loudspeaker test device also includes shell；Shell is located at audio
Outside loader 1 and power amplifier 2.
In the present embodiment, in use, audio input device 1 and power amplifier 2 are arranged at the inside of shell, use
In protection audio input device 1 and power amplifier 2.
On the basis of above-described embodiment, further, fixed pedestal is provided with the inwall of shell；Power amplifier 2
It is fixedly connected with audio input device 1 with fixed pedestal.
Wherein, the set location of fixed pedestal can be to be a variety of, such as：On the madial wall of shell or shell inner bottom wall
On.
In the present embodiment, in use, audio input device 1 and power amplifier 2 are fixedly connected with fixed pedestal,
This set can make the more stable of audio input device 1 and power amplifier 2 and cage connection.
On the basis of above-described embodiment, further, the embodiment of the present invention additionally provides a kind of loudspeaker test equipment,
Loudspeaker test equipment includes frequency tester and loudspeaker test device.
In the present embodiment, in use, audio input device 1 exports specific audio signal, and is transferred to power and puts
Big device 2；Power amplifier 2 is transferred to multiple loudspeaker incoming ends 3 after audio signal is amplified.User is by various sizes of pressure
Electroceramics loudspeaker 4 is linked into after multiple loudspeaker incoming ends 3, and multiple piezoelectric ceramic loudspeakers 4 can send sound.Due to many
The size of individual piezoelectric ceramic loudspeaker 4 is differed, therefore the sound timbre that each piezoelectric ceramic loudspeaker 4 is sent is also different.
User can be by listening to the sound that each piezoelectric ceramic loudspeaker 4 is sent, and best one piezoelectric ceramics of selection tone color is raised one's voice
Device 4, so as to select for this specific audio signal, the piezoelectric ceramic loudspeaker 4 of best results, you can determine most suitable
The size of conjunction.Frequency tester can measure the frequency for the sound that current piezoelectric ceramic loudspeaker 4 is sent, so as to user
Obtain more parameters that can be for reference.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of loudspeaker test device, it is characterised in that including：Audio input device, power amplifier and multiple loudspeakers
Incoming end；
The power amplifier is electrically connected with the audio input device, multiple loudspeaker incoming ends with the power amplification
Device is electrically connected；The power amplifier is used to amplify the audio signal of the audio input device；Multiple loudspeaker accesses
Hold for being electrically connected respectively with multiple piezoelectric ceramic loudspeakers.
2. loudspeaker test device according to claim 1, it is characterised in that also including selecting switch；
The selecting switch is electrically connected with the power amplifier and multiple loudspeaker incoming ends respectively, for being raised described
Circuit communication or disconnection of the sound device incoming end with the power amplifier.
3. loudspeaker test device according to claim 1, it is characterised in that also including regulation switch；
The regulation switch is electrically connected with the power amplifier and the audio input device respectively, for adjusting from the audio
Loader inputs the volume of the audio signal to the power amplifier.
4. loudspeaker test device according to claim 1, it is characterised in that also including Current Voltage detector；
The stream Voltage detector is electrically connected with the power amplifier and the loudspeaker incoming end respectively, described for detecting
The electric current and voltage of circuit between power amplifier and the loudspeaker incoming end.
5. loudspeaker test device according to claim 1, it is characterised in that also including decibel value detector；
The decibel value detector is used to detect that piezoelectric ceramic loudspeaker sends the decibel value of sound.
6. loudspeaker test device according to claim 1, it is characterised in that also including fixture and be arranged on described
Multiple installation portions on fixture；
Multiple loudspeaker incoming ends are arranged on the fixture；Multiple installation portions are multiple for being fixedly mounted respectively
Piezoelectric ceramic loudspeaker.
7. loudspeaker test device according to claim 6, it is characterised in that the installation portion is to set piezoelectricity pottery for card
The installation neck of porcelain loudspeaker.
8. the loudspeaker test device according to claim any one of 1-7, in addition to shell；
The shell is located at outside the audio input device and the power amplifier.
9. loudspeaker test device according to claim 8, it is characterised in that be provided with fixation on the inwall of the shell
Pedestal；
The power amplifier and the audio input device are fixedly connected with the fixed pedestal.
10. a kind of loudspeaker test equipment, it is characterised in that including frequency tester and as described in claim any one of 1-9
Loudspeaker test device.
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| CN201710426418.2A CN106998524A (en) | 2017-06-07 | 2017-06-07 | Loudspeaker test device and loudspeaker test equipment |
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| CN201710426418.2A CN106998524A (en) | 2017-06-07 | 2017-06-07 | Loudspeaker test device and loudspeaker test equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110570635A (en) * | 2019-08-08 | 2019-12-13 | 浙江正泰汽车科技有限公司 | automobile turning alarm detection table |
| CN111131992A (en) * | 2018-10-31 | 2020-05-08 | 神讯电脑(昆山)有限公司 | Micro loudspeaker detection system and detection method thereof |
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| CN202334894U (en) * | 2011-11-25 | 2012-07-11 | 常州中策仪器有限公司 | Reliable testing system of loudspeaker |
| CN206835377U (en) * | 2017-06-07 | 2018-01-02 | 盐城工学院 | Loudspeaker test device and loudspeaker test equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111131992A (en) * | 2018-10-31 | 2020-05-08 | 神讯电脑(昆山)有限公司 | Micro loudspeaker detection system and detection method thereof |
| CN110570635A (en) * | 2019-08-08 | 2019-12-13 | 浙江正泰汽车科技有限公司 | automobile turning alarm detection table |
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Application publication date: 20170801 |