CN109246572B - Frequency response test jig and microphone parameter test system - Google Patents
Frequency response test jig and microphone parameter test system Download PDFInfo
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- CN109246572B CN109246572B CN201811116134.4A CN201811116134A CN109246572B CN 109246572 B CN109246572 B CN 109246572B CN 201811116134 A CN201811116134 A CN 201811116134A CN 109246572 B CN109246572 B CN 109246572B
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- box body
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- side wall
- body base
- base
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- 238000012360 testing method Methods 0.000 title claims abstract description 76
- 238000003825 pressing Methods 0.000 claims abstract description 89
- 230000006835 compression Effects 0.000 claims 3
- 238000007906 compression Methods 0.000 claims 3
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000005236 sound signal Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000020347 spindle assembly Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
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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
- H04R2420/00—Details of connection covered by H04R, not provided for in its groups
- H04R2420/05—Detection of connection of loudspeakers or headphones to amplifiers
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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)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention provides a frequency response test jig and a microphone parameter test system, which relate to the technical field of microphone test and comprise the following components: a shielding box body; the shielding box body comprises a box body base, and a containing cavity is formed in the box body base; the box body top cover is detachably connected to the box body base; a test module; the test module is arranged in the accommodating cavity of the box body base; the test module comprises a module controller; the module controller is provided with a pressing component; the decoding board is arranged on the side wall of the module controller and is in data connection with the module controller; the module controller is also provided with at least one mark microphone interface; the loudspeaker is positioned at the rear side of the module controller and faces the pressing component, and the loudspeaker is in data connection with the module controller; the air pressure gauge is arranged on the side part of the horn and is in data connection with the module controller.
Description
Technical Field
The invention relates to the technical field of microphone testing, in particular to a frequency response testing jig and a microphone parameter testing system.
Background
A "perfect" ac amplifier should have the following quality in frequency response: stable amplification can be maintained for signals of any frequency and equal driving capability for the corresponding load. Obviously, it is not possible at all, then there are different "prefixes" for different amplifiers, and for audio signal amplifiers (power amplifiers or small signal amplifiers) we should also add such "prefixes": signals in the audible frequency range of the human ear and "likely" to affect frequencies in that range.
This range is obviously much reduced, and it is known that the audible frequency range of the human ear is about 20 to 20KHz, i.e. as long as the amplifier is able to achieve "standard" for signals in this frequency range. In fact, studies have shown that some signals above and partially below this frequency band, although "inaudible", still affect the human hearing, and therefore this range is still further extended, and in the modern audio field, this range is usually 5 to 50KHz, and some highly demanding amplifiers even reach 0.1 to several hundred KHz.
However, the above requirements seem seemingly much lower than "perfect", but are still "impossible tasks", which we cannot achieve even. Thus, there is an index of "frequency response". Therefore, the Frequency Response is a Frequency Response, and the english name is Frequency Response, which is used to describe the difference of the processing capability of an instrument for signals with different frequencies electronically. Like distortion, this is also a very important parameter indicator. The frequency response is also called a response curve, and refers to a variation curve of the gain along with the frequency. Any sound equipment or carrier (object recording sound signals) has its frequency response curve. The ideal frequency response curve should be flat and the sound signal should pass through without distortion.
The frequency response is very important for the product, but when the frequency response is tested, the frequency response is very complex, and the production efficiency of the product is influenced.
Disclosure of Invention
The invention aims to provide a frequency response test jig and a microphone parameter test system, and aims to solve the technical problems that in the prior art, when a product is subjected to frequency response test, the operation is complex, and the production efficiency of the product is influenced.
The invention provides a frequency response test jig, which comprises:
a shielding box body;
the shielding box body comprises a box body base, and a containing cavity for containing the test module is formed in the box body base;
the box body top cover is detachably connected to the box body base and is used for opening or closing the accommodating cavity of the box body base;
a first side wall panel and a second side wall panel;
the first side wall plate and the second side wall plate are symmetrically arranged on the left side and the right side of the box body base and the box body top cover, and the first side wall plate and/or the second side wall plate are detachably connected with the left wall and the right wall of the box body base; the first side wall plate and the second side wall plate are both provided with weight-reducing hole groups;
a test module;
the test module is arranged in the accommodating cavity of the box body base;
wherein the test module comprises a module controller; the module controller is provided with a pressing component for fixing a product to be tested;
the decoding board is arranged on the side wall of the module controller and is in data connection with the module controller;
the module controller is also provided with at least one standard microphone interface for connecting a standard microphone;
the loudspeaker is positioned at the rear side of the module controller and faces the press-fit assembly, and is in data connection with the module controller;
the barometer is arranged on the side part of the horn and is in data connection with the module controller;
a fixing assembly;
the test module is detachably arranged in the accommodating cavity of the box body base through the fixing component;
the fixing assembly comprises a fixing plate; a limiting hole for sleeving the module controller is formed in the center of the fixing plate, and the edge of an inner hole of the limiting hole abuts against the outer wall of the module controller and is used for limiting the movement of the module controller;
the fixing component is connected in the accommodating cavity of the box body base through a bolt; and/or the fixing component is connected in the accommodating cavity of the box body base through a screw;
the module controller is arranged on the controller bottom plate and is detachably connected into the accommodating cavity of the box body base through the controller bottom plate;
the loudspeaker bottom plate, loudspeaker setting is in on the loudspeaker bottom plate, be used for through loudspeaker bottom plate detachable connects in the holding cavity of box base.
Further, in the embodiment of the present invention, the method further includes:
a grating assembly;
the grating assembly comprises a first grating piece and a second grating piece, and the first grating piece and the second grating piece are symmetrically arranged on the left wall and the right wall of the box body base.
Further, in the embodiment of the present invention, a hinge assembly is connected between the rear end of the top cover of the box body and the rear end of the base of the box body;
the box top cover is rotatably connected with the box base through the hinge assembly.
Further, in the embodiment of the present invention, the first side wall plate is detachably connected to the left wall of the base of the box body through a plurality of first connecting posts;
the first side wall plate and the left wall of the box body base are arranged in parallel, and the first connecting columns are perpendicular to the space between the first side wall plate and the left wall of the box body base;
the two ends of the first connecting column are detachably connected with the first side wall plate and the left wall of the box body base through bolts.
Further, in the embodiment of the invention, the second side wall plate is detachably connected with the right wall of the base of the box body through a plurality of second connecting columns;
the second side wall plate and the right wall of the box body base are arranged in parallel, and the plurality of second connecting columns are perpendicular to the space between the second side wall plate and the right wall of the box body base;
the two ends of the second connecting column are detachably connected with the second side wall plate and the right wall of the box body base through bolts.
Further, in the embodiment of the present invention, the pressing assembly includes a first pressing block and a second pressing block;
the first end of the first pressing block is rotatably connected to the upper surface of the module controller through a first rotating shaft assembly, and the second end of the first pressing block is detachably connected to the upper surface of the module controller through a first locking piece and used for pressing a product to be tested;
and/or the first end of the second pressing block is rotatably connected to the upper surface of the module controller through a second rotating shaft assembly, and the second end of the second pressing block is detachably connected to the upper surface of the module controller through a second locking piece and used for pressing a product to be tested;
the first pressing block and the second pressing block are arranged in parallel along the length direction.
Further, in an embodiment of the present invention, the first locking member includes a first locking base and a first snap joint;
the first clamping joint is elastically installed on the first locking base through a first spring, can extend or retract towards the second end of the first pressing block and is used for clamping and locking the second end of the first pressing block;
the second end of the first pressing block is provided with a first clamping groove matched with the first clamping head, and the first clamping head is matched with the first clamping groove in a clamping mode.
Further, in an embodiment of the present invention, the second locking member includes a second locking base and a second bayonet head;
the second clamping joint is elastically installed on the second locking base through a second spring, can extend into or retract towards the second end of the second pressing block and is used for clamping and locking the second end of the second pressing block;
and a second clamping groove matched with the second clamping joint is formed in the second end of the second pressing block, and the second clamping joint is in clamping fit with the second clamping groove.
Further, in the embodiment of the present invention, the first grating member and/or the second grating member are L-shaped.
The embodiment of the invention provides a microphone parameter testing system which comprises the frequency response testing jig.
In the technical scheme, the frequency response test jig can more conveniently and effectively carry out frequency response test on the product, and greatly improves the production efficiency of the product to be tested.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic perspective view of a frequency response testing tool according to an embodiment of the present invention;
fig. 2 is a schematic view of a first three-dimensional structure of a test module according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of a second embodiment of a test module according to the present invention;
fig. 4 is a schematic diagram of a first three-dimensional structure of a module controller according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a second perspective structure of the module controller according to an embodiment of the present invention;
fig. 6 is a schematic perspective view of a pressing assembly according to an embodiment of the present invention;
fig. 7 is a schematic perspective view of a speaker according to an embodiment of the present invention;
fig. 8 is a schematic perspective view of a shielding box according to an embodiment of the present invention;
fig. 9 is a schematic perspective view of a shielding box according to an embodiment of the present invention;
fig. 10 is a third perspective view of a shielding box according to an embodiment of the present invention.
Reference numerals:
1-shielding a box body;
11-a base of the box; 12-a containment cavity;
13-box top cover; 14-a first side wall panel;
15-a second side wall panel; 16-a first connecting column;
17-a second connecting column; 18-a grating assembly;
2-a test module;
21-a module controller; 22-a press-fit assembly;
23-a decoding board; 24-a loudspeaker;
25-barometer; 26-fixing plate;
221-a first stitching block; 222-a second lamination block;
223-a first spindle assembly; 224 — a first locking member;
225-a second spindle assembly; 226-second locking element.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-10, the frequency response testing tool provided in this embodiment includes:
a shield case 1;
the shielding box body 1 comprises a box body base 11, and a containing cavity 12 for containing the test module 2 is arranged in the box body base 11;
the box body top cover 13 is detachably connected to the box body base 11 and used for opening or closing the accommodating cavity 12 of the box body base 11;
a first side wall panel 14 and a second side wall panel 15;
the first side wall plate 14 and the second side wall plate 15 are symmetrically arranged at the left side and the right side of the box base 11 and the box top cover 13, and the first side wall plate 14 and/or the second side wall plate 15 are detachably connected with the left wall and the right wall of the box base 11; the first side wall plate 14 and the second side wall plate 15 are both provided with weight-reducing hole groups;
a test module 2;
the test module 2 is arranged in the accommodating cavity 12 of the box body base 11;
wherein the test module 2 comprises a module controller 21; the module controller 21 is provided with a pressing component 22 for fixing a product to be tested;
the decoding board 23 is arranged on the side wall of the module controller 21, and the decoding board 23 is in data connection with the module controller 21;
the module controller 21 is also provided with at least one standard microphone interface for connecting a standard microphone;
a horn 24, wherein the horn 24 is located at the rear side of the module controller 21 and faces the pressing component 22, and the horn 24 is in data connection with the module controller 21;
the air pressure gauge 25 is arranged on the side part of the horn 24, and the air pressure gauge 25 is in data connection with the module controller 21;
a fixing assembly;
the test module 2 is detachably arranged in the accommodating cavity 12 of the box body base 11 through the fixing component;
the fixing assembly includes a fixing plate 26; a limiting hole for sleeving the module controller 21 is formed in the center of the fixing plate 26, and the edge of an inner hole of the limiting hole abuts against the outer wall of the module controller 21 and is used for limiting the movement of the module controller 21; the fixing component is connected in the accommodating cavity 12 of the box body base 11 through a bolt;
and/or the fixing component is connected in the accommodating cavity 12 of the box body base 11 through a screw;
the module controller 21 is arranged on the controller bottom plate and is detachably connected in the accommodating cavity 12 of the box body base 11 through the controller bottom plate;
the loudspeaker bottom plate, loudspeaker 24 sets up on the loudspeaker bottom plate, be used for through loudspeaker bottom plate detachable connects in the accommodation cavity 12 of box base 11.
According to the frequency response test tool, the microphone parameters of the electronic watch product are mainly tested, unqualified products are detected, and the quality of the delivered products is guaranteed.
In the process of microphone detection, the shielding box 1 is firstly opened, that is, the box top cover 13 on the box base 11 is opened relative to the box base 11 to expose the test module 2 arranged in the accommodating cavity 12, and then the test module 2 is used for microphone detection.
In the test, the PAD point on the product to be tested needs to have four pins, and then the microphone is pressed on the silica gel with holes by the pressing component 22, so that the whole product to be tested is pressed on the upper surface of the module controller 21 to form a test connection state.
The shielding box is then closed and testing is initiated using the test system of the data connection (i.e., the test system installed on the computer).
Then, the shielding box is opened again, the product to be tested is taken out, the PSA on the back of the microphone is torn off, then the product to be tested is put into the carrier plate, the product to be tested is pressed tightly in the original manner by the pressing component 22, the shielding box is closed, and the test is started by the data connection test system (i.e. the test system installed on the computer).
After the test is finished, the shielding box is opened, the product to be tested is taken out, and the test is finished by using the product to be tested.
And repeating the steps and testing the next product.
By adopting the weight-reducing hole group, the weight of the first side wall plate 14 and the second side wall plate 15 can be reduced under the condition that the using effect of the first side wall plate 14 and the second side wall plate 15 can be ensured, meanwhile, a lot of materials are saved, and the cost is reduced.
The fixing component can be used for more conveniently mounting and dismounting the test module 2, so that the test module 2 can be firmly mounted in the accommodating cavity 12 of the box base 11.
After the fixing plate 26 is pre-installed in the receiving cavity 12 of the box base 11, the module controller 21 can be installed in the limiting hole of the fixing plate 26.
The module controller 21 is sleeved by the limiting hole, and the lateral movement of the module controller 21 is limited by the limiting hole, so that the module controller 21 can be more stably installed in the accommodating cavity 12 of the box body base 11.
Therefore, the fixing component can be conveniently mounted and dismounted by using the screw or the bolt, and the use is very convenient.
The module controller 21 can be more conveniently and firmly installed and disassembled by using the controller bottom plate; the horn 24 can be more conveniently and more securely mounted and dismounted by the horn base plate.
In addition, it should be noted that the specific test mode can be reasonably adjusted according to the needs of those skilled in the art, and the operation is performed with reference to the test steps in the prior art, which is not limited herein.
In conclusion, the frequency response test jig can more conveniently and effectively carry out frequency response test on products, and greatly improves the production efficiency of the products to be tested.
Further, in the embodiment of the present invention, the method further includes:
a grating assembly 18;
the grating assembly 18 includes a first grating member and a second grating member, and the first grating member and the second grating member are symmetrically disposed on the left wall and the right wall of the box base 11.
Further, in the embodiment of the present invention, the first grating member and/or the second grating member are L-shaped.
Further, in the embodiment of the present invention, a hinge assembly is connected between the rear end of the box top cover 13 and the rear end of the box base 11;
the box body top cover 13 is rotatably connected with the box body base 11 through the hinge assembly.
So, adopt articulated subassembly to make the rear end of box overhead guard 13 with articulated the rotation between the rear end of box base 11, like this, opening when the box overhead guard 13, can so that the box overhead guard 13 for box base 11 rotates can, very convenient laborsaving.
In addition, in order to more conveniently rotate the box top cover 13, a hydraulic or pneumatic telescopic rod may be arranged between the box top cover 13 and the box base 11, and the box top cover 13 is supported by the extension and contraction of the telescopic rod, so as to be opened or closed relative to the box base 11 along the hinge assembly.
Further, in the embodiment of the present invention, the first side wall plate 14 is detachably connected to the left wall of the box base 11 through a plurality of first connection posts 16;
the first side wall plate 14 and the left wall of the box base 11 are parallel to each other, and the first connecting posts 16 are perpendicular to the space between the first side wall plate 14 and the left wall of the box base 11.
Therefore, the first side wall plate 14 and the left wall of the box base 11 are uniformly connected by the plurality of first connection posts 16, that is, the first side wall plate 14 and the left wall of the box base 11 can be uniformly and stably connected, and the first side wall plate 14 can be more stably connected to the left wall of the box base 11.
Further, in the embodiment of the present invention, both ends of the first connecting column 16 are detachably connected to the first side wall plate 14 and the left wall of the box base 11 by bolts.
Therefore, the first side wall plate 14 is connected with the left wall of the box base 11 by using the bolt, so that the first connecting column 16 can be more conveniently mounted and dismounted between the first side wall plate 14 and the left wall of the box base 11, and the use is more flexible.
Further, in the embodiment of the present invention, the second side wall plate 15 is detachably connected to the right wall of the box base 11 through a plurality of second connecting posts 17;
the second side wall plate 15 and the right wall of the box body base 11 are arranged in parallel, and the plurality of second connecting columns 17 are perpendicular to the space between the second side wall plate 15 and the right wall of the box body base 11.
Similarly, utilize even connection of a plurality of second spliced poles 17 the second side wallboard 15 with between the right wall of box base 11, can make the second side wallboard 15 with can form even, stable connected state between the right wall of box base 11, make the connection that the second side wallboard 15 can be more stable is in the right wall of box base 11.
Further, in the embodiment of the present invention, both ends of the second connecting column 17 are detachably connected to the second side wall plate 15 and the right wall of the box base 11 by bolts.
Similarly, the second side wall plate 15 and the right wall of the box base 11 are connected through bolts, so that the second connecting column 17 can be mounted and dismounted between the second side wall plate 15 and the right wall of the box base 11 more conveniently, and the use is more flexible.
Further, in the embodiment of the present invention, the pressing assembly 22 includes a first pressing block 221 and a second pressing block 222;
a first end of the first pressing block 221 is rotatably connected to the upper surface of the module controller 21 through a first rotating shaft component 223, and a second end of the first pressing block 221 is detachably connected to the upper surface of the module controller 21 through a first locking component 224, and is used for pressing a product to be tested;
and/or the first end of the second pressing block 222 is rotatably connected to the upper surface of the module controller 21 through the second rotating shaft component 225, and the second end of the second pressing block 222 is detachably connected to the upper surface of the module controller 21 through the second locking component 226, and is used for pressing the to-be-tested product.
Therefore, according to the above structure, when the product to be tested is pressed, the first pressing block 221 and the second pressing block 222 can be used to press two parts of the product to be tested.
Taking an electronic watch product as an example, when performing pressing, the first pressing block 221 may be used to press the PAD points where four pins are planted, and then the second pressing block 222 may be used to press the microphone.
When the first pressing block 221 is opened, the first locking member 224 can be opened to lock the second end of the first pressing block 221, so that the first pressing block 221 can rotate along the first rotating shaft assembly 223 connected to the first end of the first pressing block 221 to open the first pressing block 221; when the first pressing block 221 is closed, the first pressing block 221 may be rotated in a reverse direction, and then the second end of the first pressing block 221 is locked by the first locking member 224, so that the first pressing block 221 is closed.
Similarly, when the second press-fit block 222 is opened, the second locking piece 226 may be opened to lock the second end of the second press-fit block 222, so that the second press-fit block 222 can rotate along the second rotating shaft component 225 connected to the first end of the second press-fit block 222 to open the second press-fit block 222; when the second press-fit block 222 is closed, the second press-fit block 222 may be rotated in a reverse direction, and then the second end of the second press-fit block 222 is locked by the second locking member 226, so that the second press-fit block 222 is closed.
Further, in the embodiment of the present invention, the first pressing block 221 and the second pressing block 222 are disposed in parallel with each other along the length direction.
The first pressing block 221 and the second pressing block 222 are arranged in parallel along the length direction, so that the first pressing block 221 and the second pressing block 222 can be stably matched with each other to press a product to be tested.
Further, in the embodiment of the present invention, the first locking member 224 includes a first locking base and a first snap joint;
first joint passes through first spring elastic mounting on the first locking base, can towards the second end of first pressfitting piece 221 stretches into or retracts for the joint locking the second end of first pressfitting piece 221.
Therefore, when the first locking member 224 is used to lock the second end of the first pressing block 221, the second end of the first pressing block 221 can be pressed on the first card connector, and then the first spring is forced to retract by the abutting acting force between the second end of the first pressing block 221 and the first card connector, so as to drive the first card connector to retract; after the second end of the first pressing block 221 is pressed in place, the first clamping head rebounds through the elastic force of the first spring, so that the first clamping head extends out and is clamped at the second end of the first pressing block 221, and the second end of the first pressing block 221 is locked.
Further, in the embodiment of the present invention, a second end of the first pressing block 221 is provided with a first clamping groove matched with the first clamping head, and the first clamping head is clamped and matched with the first clamping groove.
Therefore, after the first engaging groove is formed, the first engaging head and the second end of the first pressing block 221 can be more conveniently engaged and fixed, so that the first locking member 224 can be more firmly engaged and fixed with the second end of the first pressing block 221.
Further, in the embodiment of the present invention, the second locking member 226 includes a second locking base and a second bayonet joint;
the second clamping head is elastically mounted on the second locking base through a second spring, and can extend into or retract towards the second end of the second pressing block 222, so as to clamp and lock the second end of the second pressing block 222.
Similarly, when the second end of the second pressing block 222 is locked by the second locking member 226, the second end of the second pressing block 222 may be pressed on the second card connector, and then the second spring is forced to retract by the abutting acting force between the second end of the second pressing block 222 and the second card connector, so as to drive the second card connector to retract; after the second end of the second pressing block 222 is pressed in place, the second card connector rebounds through the elastic force of the second spring, so that the second card connector extends out and is clamped at the second end of the second pressing block 222, so as to lock the second end of the second pressing block 222.
Further, in the embodiment of the present invention, a second end of the second pressing block 222 is provided with a second clamping groove matched with the second clamping head, and the second clamping head is clamped and matched with the second clamping groove.
Similarly, after the second clamping groove is formed, the second clamping head and the second end of the second pressing block 222 can be more conveniently clamped and fixed, so that the second locking piece 226 can be more firmly clamped and fixed to the second end of the second pressing block 222.
The invention also provides a microphone parameter testing system which comprises the frequency response testing jig.
Since the specific structure, functional principle and technical effect of the frequency response test jig are all detailed in the foregoing, they are not repeated herein.
Therefore, any technical content related to the frequency response testing tool can be found in the above description of the frequency response testing tool.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A frequency response test fixture, comprising:
a shielding box body;
the shielding box body comprises a box body base, and a containing cavity for containing the test module is formed in the box body base;
the box body top cover is detachably connected to the box body base and is used for opening or closing the accommodating cavity of the box body base;
a first side wall panel and a second side wall panel;
the first side wall plate and the second side wall plate are symmetrically arranged on the left side and the right side of the box body base and the box body top cover, and the first side wall plate and/or the second side wall plate are detachably connected with the left wall and the right wall of the box body base; the first side wall plate and the second side wall plate are both provided with weight-reducing hole groups;
a test module;
the test module is arranged in the accommodating cavity of the box body base;
wherein the test module comprises a module controller; the module controller is provided with a pressing component for fixing a product to be tested;
the decoding board is arranged on the side wall of the module controller and is in data connection with the module controller;
the module controller is also provided with at least one standard microphone interface for connecting a standard microphone;
the loudspeaker is positioned at the rear side of the module controller and faces the press-fit assembly, and is in data connection with the module controller;
the barometer is arranged on the side part of the horn and is in data connection with the module controller;
a fixing assembly;
the test module is detachably arranged in the accommodating cavity of the box body base through the fixing component;
the fixing assembly comprises a fixing plate; a limiting hole for sleeving the module controller is formed in the center of the fixing plate, and the edge of an inner hole of the limiting hole abuts against the outer wall of the module controller and is used for limiting the movement of the module controller;
the fixing component is connected in the accommodating cavity of the box body base through a bolt; and/or the fixing component is connected in the accommodating cavity of the box body base through a screw;
the module controller is arranged on the controller bottom plate and is detachably connected into the accommodating cavity of the box body base through the controller bottom plate;
the horn is arranged on the horn bottom plate and is detachably connected into the accommodating cavity of the box body base through the horn bottom plate;
a grating assembly;
the grating assembly comprises a first grating piece and a second grating piece, and the first grating piece and the second grating piece are symmetrically arranged on the left wall and the right wall of the box body base.
2. The frequency response testing jig of claim 1 wherein a hinge assembly is connected between the rear end of the top housing of the tank and the rear end of the base of the tank;
the box top cover is rotatably connected with the box base through the hinge assembly.
3. The frequency response testing tool of claim 1, wherein the first side wall plate is detachably connected to the left wall of the box base through a plurality of first connecting posts;
the first side wall plate and the left wall of the box body base are arranged in parallel, and the first connecting columns are perpendicular to the space between the first side wall plate and the left wall of the box body base;
the two ends of the first connecting column are detachably connected with the first side wall plate and the left wall of the box body base through bolts.
4. The frequency response testing tool of claim 1, wherein the second side wall plate is detachably connected to the right wall of the base of the box body through a plurality of second connecting columns;
the second side wall plate and the right wall of the box body base are arranged in parallel, and the plurality of second connecting columns are perpendicular to the space between the second side wall plate and the right wall of the box body base;
the two ends of the second connecting column are detachably connected with the second side wall plate and the right wall of the box body base through bolts.
5. The frequency response testing tool of claim 1, wherein the compression assembly includes a first compression block and a second compression block;
the first end of the first pressing block is rotatably connected to the upper surface of the module controller through a first rotating shaft assembly, and the second end of the first pressing block is detachably connected to the upper surface of the module controller through a first locking piece and used for pressing a product to be tested;
and/or the first end of the second pressing block is rotatably connected to the upper surface of the module controller through a second rotating shaft assembly, and the second end of the second pressing block is detachably connected to the upper surface of the module controller through a second locking piece and used for pressing a product to be tested;
the first pressing block and the second pressing block are arranged in parallel along the length direction.
6. The frequency response testing tool of claim 5, wherein the first locking member comprises a first locking base and a first bayonet joint;
the first clamping joint is elastically installed on the first locking base through a first spring, can extend or retract towards the second end of the first pressing block and is used for clamping and locking the second end of the first pressing block;
the second end of the first pressing block is provided with a first clamping groove matched with the first clamping head, and the first clamping head is matched with the first clamping groove in a clamping mode.
7. The frequency response testing tool of claim 5, wherein said second locking member includes a second locking base and a second bayonet joint;
the second clamping joint is elastically installed on the second locking base through a second spring, can extend into or retract towards the second end of the second pressing block and is used for clamping and locking the second end of the second pressing block;
and a second clamping groove matched with the second clamping joint is formed in the second end of the second pressing block, and the second clamping joint is in clamping fit with the second clamping groove.
8. The frequency response testing tool of claim 1, wherein the first grating member and/or the second grating member is L-shaped.
9. A microphone parametric test system comprising a frequency response test tool according to any one of claims 1 to 8.
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| CN110087176B (en) * | 2019-05-22 | 2021-09-28 | 格云特自动化科技（深圳）有限公司 | Multi-frequency-band clock frequency response detection equipment for microphone |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204758119U (en) * | 2015-06-29 | 2015-11-11 | 苏州赛腾精密电子股份有限公司 | Notebook computer surveys device of making an uproar |
| CN106956842A (en) * | 2017-03-17 | 2017-07-18 | 成都格瑞思文化传播有限公司 | A kind of logistics carton |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100868972B1 (en) * | 2008-04-25 | 2008-11-17 | 주식회사 소비코 | Portable micro speaker test box |
| CN103916506A (en) * | 2012-12-31 | 2014-07-09 | 赛龙通信技术（深圳）有限公司 | Testing device and audio automatic testing system and method for mobile terminal |
| CN203423802U (en) * | 2013-07-03 | 2014-02-05 | 格云特自动化科技（深圳）有限公司 | Microphone testing device |
| US9948411B2 (en) * | 2014-12-05 | 2018-04-17 | W2Bi, Inc. | Smart box for automatic feature testing of smart phones and other devices |
| US10237593B2 (en) * | 2016-05-26 | 2019-03-19 | Telefonaktiebolaget Lm Ericsson (Publ) | Monitoring quality of experience (QoE) at audio/video (AV) endpoints using a no-reference (NR) method |
| CN106645812B (en) * | 2016-10-27 | 2019-04-16 | 中国航空工业集团公司洛阳电光设备研究所 | The universal test device that a kind of pair of many types of product of aviation is tested |
| CN106686512B (en) * | 2017-01-18 | 2020-04-03 | 歌尔股份有限公司 | Audio testing device for microphone of wearable electronic product |
| CN207117954U (en) * | 2017-07-24 | 2018-03-16 | 东莞市沃德精密机械有限公司 | Ear-phone function automatic checkout equipment |
| CN107343251B (en) * | 2017-07-31 | 2023-11-21 | 珠海市运泰利自动化设备有限公司 | audio test box |
-
2018
- 2018-09-25 CN CN201811116134.4A patent/CN109246572B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204758119U (en) * | 2015-06-29 | 2015-11-11 | 苏州赛腾精密电子股份有限公司 | Notebook computer surveys device of making an uproar |
| CN106956842A (en) * | 2017-03-17 | 2017-07-18 | 成都格瑞思文化传播有限公司 | A kind of logistics carton |
Non-Patent Citations (1)
| Title |
|---|
| 用于校验听力设备的小型消声箱;张春华;《铁道劳动卫生通讯》;19841231;第74页 * |
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Denomination of invention: A frequency response testing tool and microphone parameter testing system Effective date of registration: 20230323 Granted publication date: 20201201 Pledgee: Industrial Bank Co.,Ltd. Shanghai Changning sub branch Pledgor: SHANGHAI JDT TECHNOLOGY Corp.,Ltd. Registration number: Y2023310000080 |
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Denomination of invention: A frequency response testing tool and microphone parameter testing system Granted publication date: 20201201 Pledgee: Industrial Bank Co.,Ltd. Shanghai Changning sub branch Pledgor: SHANGHAI JDT TECHNOLOGY Corp.,Ltd. Registration number: Y2024310000230 |
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