CN112291687A - Loudspeaker detection system and detection equipment - Google Patents
Loudspeaker detection system and detection equipment Download PDFInfo
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- CN112291687A CN112291687A CN202011294249.XA CN202011294249A CN112291687A CN 112291687 A CN112291687 A CN 112291687A CN 202011294249 A CN202011294249 A CN 202011294249A CN 112291687 A CN112291687 A CN 112291687A
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- 238000001514 detection method Methods 0.000 title claims abstract description 45
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims abstract description 6
- 230000008054 signal transmission Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000013016 damping Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
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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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
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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
- H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers
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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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Circuit For Audible Band Transducer (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The invention discloses a loudspeaker detection system, comprising: the loudspeaker is provided with a sound cone; the fixed seat is detachably connected with the loudspeaker; a signal generating unit electrically connectable to the speaker; the amplitude detection module is arranged on the fixed seat and can detect the amplitude of the cone. The fixing base is connected with speaker detachably to fixed speaker prevents that the speaker from taking place the skew, and signal generation unit produces frequency drive signal transmission to speaker, makes the sound basin take place the vibration in order to order about speaker work, detects the amplitude of sound basin through amplitude detection module, and then can know whether up to standard of sound basin amplitude, perhaps whether the amplitude of sound basin surpasss the scope of bearing of sound basin. Therefore, the detection of the amplitude of the sound cone during the working of the loudspeaker is realized, and the subsequent adjustment design of the loudspeaker is facilitated.
Description
Technical Field
The invention relates to the field of loudspeaker detection, in particular to a loudspeaker detection system and a loudspeaker detection device.
Background
The loudspeaker generally comprises a magnet, a coil and a cone, an electric signal is transmitted to the coil, and a magnetic field generated by the coil and a magnetic field generated by the magnet interact with each other, so that the coil drives the cone to vibrate, the electric signal can be converted into a sound wave signal, and the broadcasting effect is realized. The frequency characteristics of a speaker, i.e., the amplitude of an electrical signal of different frequencies input to the speaker, are one of the important parameters of the speaker.
Because the frequency characteristics of different loudspeakers have differences, the problem that the amplitude of the cone does not reach the standard under a certain frequency and the broadcasting effect is influenced can occur, or the condition that the amplitude of the cone exceeds the bearing range of the cone under a certain frequency can occur, so that the service life of the loudspeaker is shortened.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a loudspeaker detection system which can detect the amplitude condition of a sound cone on a loudspeaker.
The invention also provides a detection device which can detect the external loudspeaker and also know the amplitude condition of the cone.
A loudspeaker detection system according to an embodiment of a first aspect of the present invention includes: the loudspeaker is provided with a sound cone; the fixed seat is detachably connected with the loudspeaker; a signal generating unit electrically connectable to the speaker; the amplitude detection module is arranged on the fixed seat and can detect the amplitude of the cone.
The loudspeaker detection system according to the embodiment of the invention has at least the following beneficial effects: the fixing base is connected with speaker detachably to fixed speaker prevents that the speaker from taking place the skew, and signal generation unit produces frequency drive signal transmission to speaker, makes the sound basin take place the vibration in order to order about speaker work, detects the amplitude of sound basin through amplitude detection module, and then can know whether up to standard of sound basin amplitude, perhaps whether the amplitude of sound basin surpasss the scope of bearing of sound basin. Therefore, the detection of the amplitude of the sound cone during the working of the loudspeaker is realized, and the subsequent adjustment design of the loudspeaker is facilitated.
According to some embodiments of the present invention, the amplitude detection module includes a processing module, a light emitting unit and a light receiving unit, the processing module is electrically connected to the light receiving unit, the light emitting unit and the light receiving unit are located at two sides of the cone, and the cone vibrates to change an electrical signal generated by the light receiving unit.
According to some embodiments of the invention, the light emitting unit is an infrared emitter and the light receiving unit is an infrared receiver.
According to some embodiments of the present invention, there are at least two of the light emitting units, the number of the light receiving units is the same as the number of the light emitting units, and the light receiving units are different from each other in a distance from the cone in the cone vibration direction.
According to some embodiments of the invention, the processing module comprises a timing unit electrically connected to the light receiving unit.
According to some embodiments of the present invention, the processing module further comprises a comparison unit, and the comparison unit is electrically connected to the timing unit and the signal generation unit respectively.
According to some embodiments of the present invention, the apparatus further comprises a display unit electrically connected to the amplitude detection module.
According to some embodiments of the invention, the speaker further comprises an adjusting structure arranged on the fixed seat, and the adjusting structure can adjust the position of the speaker.
The detection device according to an embodiment of the second aspect of the present invention includes: a fixed base detachably connectable with an external speaker; a signal generating unit electrically connectable with an external speaker; the amplitude detection module is arranged on the fixed seat and can detect the amplitude of the sound cone on the external loudspeaker.
The detection device provided by the embodiment of the invention has at least the following beneficial effects: the fixing base with prevent the skew with the speaker is fixed, the signal generation unit produces the frequency drive signal and makes the sound basin take place the vibration in order to order about speaker work, detects the amplitude of sound basin through amplitude detection module, and then can know whether up to standard of sound basin amplitude, perhaps whether the amplitude of sound basin surpasss the scope of bearing of sound basin. Therefore, the detection of the amplitude of the sound cone during the working of the loudspeaker is realized, and the subsequent adjustment design of the loudspeaker is facilitated.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic block diagram of one embodiment of the present invention;
fig. 2 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, if there are first and second described only for the purpose of distinguishing technical features, it is not understood that relative importance is indicated or implied or that the number of indicated technical features or the precedence of the indicated technical features is implicitly indicated or implied.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
As shown in fig. 1 and 2, a speaker detecting system according to an embodiment of the present invention includes: a loudspeaker 100, said loudspeaker 100 being provided with a cone 110; a fixing base 200, wherein the fixing base 200 is detachably connected with the loudspeaker 100; a signal generating unit 300, wherein the signal generating unit 300 can be electrically connected with the loudspeaker 100; and an amplitude detection module 400 disposed on the fixing base 200, wherein the amplitude detection module 400 can detect the amplitude of the cone 110.
The fixing base 200 is detachably connected to the speaker 100 to fix the speaker 100 and prevent the speaker 100 from deviating, the signal generating unit 300 generates a frequency driving signal to transmit to the speaker 100, so as to drive the speaker 100 to work and enable the cone 110 to vibrate, and the amplitude of the cone 110 is detected by the amplitude detecting module 400, so that whether the amplitude of the cone 110 reaches the standard or not or whether the amplitude of the cone 110 exceeds the bearing range of the cone 110 or not can be known. Therefore, the amplitude of the cone 110 is detected when the loudspeaker 100 works, and the subsequent adjustment design of the loudspeaker 100 is facilitated.
The fixing base 200 can clamp and fix the loudspeaker 100 by arranging a clamp, so that the aim of detachably connecting the fixing base 200 and the loudspeaker 100 is fulfilled; the fixing base 200 may also be provided with an iron block or a magnetic block, and the magnet on the speaker 100 is attracted to the iron block or the magnetic block, so as to achieve the purpose of detachably connecting the fixing base 200 and the speaker 100. The signal generating unit 300 may be implemented as a signal generator, or may be implemented as a common sine wave generating circuit, a square wave generating circuit, or the like, and is capable of outputting driving signals with different frequencies to drive the speaker 100 to operate and detect.
Referring to fig. 1 and 2, in some embodiments of the present invention, the amplitude detection module 400 includes a processing module 410, a light emitting unit 420 and a light receiving unit 430, the processing module 410 is electrically connected to the light receiving unit 430, the light emitting unit 420 and the light receiving unit 430 are located at two sides of the cone 110, and the vibration of the cone 110 can change an electrical signal generated by the light receiving unit 430.
The light emitting unit 420 emits light, and the light receiving unit 430 outputs different electrical signals according to whether the light emitted by the light generating unit is received, for example, the light receiving unit 430 outputs a high level when receiving the light, and outputs a low level when not receiving the light. The light emitting unit 420 and the light receiving unit 430 are located at two sides of the cone 110, when the cone 110 does not vibrate, the light receiving unit 430 can normally receive the light emitted by the light emitting unit 420, and when the vibration amplitude of the cone 110 is large enough, the cone 110 can move between the light emitting unit 420 and the light receiving unit 430 to shield the light emitted by the light emitting unit 420. Or when the cone 110 does not vibrate, the cone 110 blocks the light emitted by the light emitting unit 420, and when the vibration amplitude of the cone 110 is large enough, the cone 110 does not block the light emitted by the light generating unit, and the light receiving unit 430 can receive the light emitted by the light generating unit. Thus, the processing module 410 can obtain the amplitude of the cone 110 according to the electrical signal output by the light receiving unit 430.
Through the above principle, the processing module 410 can know whether the amplitude of the cone 110 meets the standard or exceeds the bearing range of the cone 110 according to whether the electrical signal output by the light receiving unit 430 changes. The light emitting unit 420 and the light receiving unit 430 are adopted, so that the structure is simple and the implementation is convenient. Generally, the light emitted from the light emitting unit 420 has a strong directivity, and the light emitting unit 420 and the light receiving unit 430 are disposed opposite to each other.
Referring to fig. 1, in some embodiments of the present invention, the light emitting unit 420 is an infrared transmitter and the light receiving unit 430 is an infrared receiver.
The light emitting unit 420 adopts an infrared emitter, and the light receiving unit 430 adopts an infrared receiver, so that the influence of ambient light can be reduced, and the detection accuracy can be improved.
The light emitting unit 420 and the light receiving unit 430 can also be implemented using other light frequency bands for the light emitting unit 420 and the light receiving unit 430.
Referring to fig. 2, in some embodiments of the present invention, there are at least two light emitting units 420, the number of the light receiving units 430 is the same as the number of the light emitting units 420, and different distances between the light receiving units 430 and the cone 110 in the vibration direction of the cone 110 are different.
By arranging two or more light emitting units 420 and light receiving units 430, the distances between different light receiving units 430 and the cone 110 are different, and the light emitting units 420 and the light receiving units 430 are arranged in a one-to-one correspondence manner, so that amplitude thresholds of different cones 110 can be detected, and the effect of detecting the amplitude values of a plurality of cones 110 is realized. Through setting two or more light emission unit 420 and light receiving unit 430 in suitable position, can be when frequency signal drive speaker 100 during operation, whether detect the sound basin 110 amplitude up to standard simultaneously and whether audio frequency amplitude surpasss audio frequency amplitude scope, make to detect more convenient, be favorable to knowing the condition of sound basin 110 amplitude in more detail.
Referring to fig. 1, in some embodiments of the present invention, the processing module 410 includes a timing unit 411, and the timing unit 411 is electrically connected to the light receiving unit 430.
By providing the timing unit 411, recording is started when the light receiving unit 430 changes the output electrical signal until the light receiving unit 430 changes the output electrical signal again and stops recording time, so that the reset time of the vibration of the cone 110 can be known, which is beneficial to more detailed knowledge of the performance of the speaker 100.
The timing unit 411 may be implemented as a timer or a commonly used timing circuit, and when the processor module is a processing device such as a single chip or an embedded chip, the timing unit 411 may be a period of timing program in the processing device.
Referring to fig. 1, in some embodiments of the present invention, the processing module 410 further includes a comparing unit 412, and the comparing unit 412 is electrically connected to the timing unit 411 and the signal generating unit 300, respectively.
The comparison unit 412 obtains the recording time information of the timing unit 411 and the time base information of the frequency signal output by the signal generation unit 300, and compares the recording time information with the time base information to obtain information such as whether the amplitude of the cone 110 at the frequency point reaches the standard, whether the amplitude exceeds the bearing range of the cone 110, whether the frequency response amplitude duration time meets the design requirement of the loudspeaker 100, and the like, which is beneficial to subsequent design and adjustment of the loudspeaker 100.
When the processing module 410 is a processing device such as a single chip or an embedded chip, the comparison unit 412 may be a section of program with a comparison function in the processing device; the comparison unit 412 can also be implemented as a conventional circuit with comparison function.
Referring to fig. 1, in some embodiments of the present invention, the present invention further includes a display unit 500, and the display unit 500 is electrically connected to the amplitude detection module 400.
Through being provided with display element 500 and amplitude detection module 400 to make display element 500 can show the amplitude condition of speaker 100 during operation sound basin 110, the person of facilitating the use can learn the measuring condition more directly perceived, makes it more convenient to use. The display unit 500 may be a liquid crystal screen, an LED screen, or the like having a display function.
In some embodiments of the present invention, the speaker holder further comprises an adjusting structure disposed on the fixing base 200, wherein the adjusting structure can adjust the position of the speaker 100.
The size and the height of the loudspeaker 100 with different specifications and models are different, and the amplitude threshold values corresponding to the sound cones 110 are also different, so that the position of the loudspeaker 100 is adjusted when the loudspeaker 100 is detachably connected with the fixing seat 200 through the adjusting structure, and then the relative position of the loudspeaker 100 and the amplitude detection module 400 is adjusted, so that the loudspeaker 100 with different specifications and models can be conveniently detected, and the application range can be favorably expanded.
The adjusting structure may be an embodiment including a plurality of bolts, the fixing base 200 is provided with a groove for accommodating the speaker 100, the bolts are connected with the fixing base 200 by screw threads and extend into the groove to abut against the speaker 100, the plurality of bolts abut against the speaker 100 to fix the speaker 100, and meanwhile, the effect of adjusting the fixing position of the speaker 100 can be achieved by adjusting the positions of the bolts. The adjusting structure can also be an implementation mode comprising a damping slide rail and a bearing platform, the bearing platform is movably connected with the fixed seat 200 through the damping slide rail, the loudspeaker 100 is fixed on the bearing platform, and the effect of adjusting the position of the loudspeaker 100 is achieved by pushing the bearing platform to slide relative to the fixed seat 200.
Referring to the drawings, a detection apparatus according to an embodiment of the second aspect of the present invention includes: a holder 200, the holder 200 being detachably connectable with the external speaker 100; a signal generating unit 300, the signal generating unit 300 being electrically connectable with the external speaker 100; and an amplitude detection module 400 disposed on the fixing base 200, wherein the amplitude detection module 400 can detect the amplitude of the cone 110 on the external speaker 100.
The fixing base 200 fixes the speaker 100 to prevent deviation, the signal generating unit 300 generates a frequency driving signal to drive the speaker 100 to work so as to vibrate the cone 110, and the amplitude of the cone 110 is detected by the amplitude detecting module 400, so that whether the amplitude of the cone 110 reaches the standard or whether the amplitude of the cone 110 exceeds the bearing range of the cone 110 can be known. Therefore, the amplitude of the cone 110 is detected when the loudspeaker 100 works, and the subsequent adjustment design of the loudspeaker 100 is facilitated.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.
Claims (9)
1. A loudspeaker detection system, comprising:
a loudspeaker (100), the loudspeaker (100) being provided with a cone (110);
a fixing base (200), wherein the fixing base (200) is detachably connected with the loudspeaker (100);
a signal generating unit (300), the signal generating unit (300) being electrically connectable with the loudspeaker (100);
the amplitude detection module (400) is arranged on the fixed seat (200), and the amplitude detection module (400) can detect the amplitude of the cone (110).
2. A loudspeaker testing system according to claim 1, wherein: the amplitude detection module (400) comprises a processing module (410), a light emitting unit (420) and a light receiving unit (430), the processing module (410) is electrically connected with the light receiving unit (430), the light emitting unit (420) and the light receiving unit (430) are located on two sides of the cone (110), and the vibration of the cone (110) can change an electric signal generated by the light receiving unit (430).
3. A loudspeaker testing system according to claim 2, wherein: the light emitting unit (420) is an infrared transmitter, and the light receiving unit (430) is an infrared receiver.
4. A loudspeaker testing system according to claim 2, wherein: the number of the light emitting units (420) is at least two, the number of the light receiving units (430) is the same as that of the light emitting units (420), and the distances between the light receiving units (430) and the sound cone (110) in the vibration direction of the sound cone (110) are different.
5. A loudspeaker testing system according to claim 2, wherein: the processing module (410) comprises a timing unit (411), and the timing unit (411) is electrically connected with the light receiving unit (430).
6. The loudspeaker detection system of claim 5, wherein: the processing module (410) further comprises a comparison unit (412), and the comparison unit (412) is electrically connected with the timing unit (411) and the signal generation unit (300) respectively.
7. A loudspeaker testing system according to claim 1, wherein: the vibration amplitude detection device further comprises a display unit (500), wherein the display unit (500) is electrically connected with the vibration amplitude detection module (400).
8. A loudspeaker testing system according to claim 1, wherein: the loudspeaker fixing seat is characterized by further comprising an adjusting structure arranged on the fixing seat (200), and the adjusting structure can adjust the position of the loudspeaker (100).
9. Detection apparatus, characterized in that it comprises:
a holder (200), the holder (200) being detachably connectable with an external speaker (100);
a signal generating unit (300), the signal generating unit (300) being electrically connectable with an external speaker (100);
the amplitude detection module (400) is arranged on the fixed seat (200), and the amplitude detection module (400) can detect the amplitude of the cone (110) on the external loudspeaker (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011294249.XA CN112291687B (en) | 2020-11-18 | 2020-11-18 | Loudspeaker detecting system and detecting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011294249.XA CN112291687B (en) | 2020-11-18 | 2020-11-18 | Loudspeaker detecting system and detecting equipment |
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| CN112291687A true CN112291687A (en) | 2021-01-29 |
| CN112291687B CN112291687B (en) | 2024-09-20 |
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| CN202011294249.XA Active CN112291687B (en) | 2020-11-18 | 2020-11-18 | Loudspeaker detecting system and detecting equipment |
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