CN114374923B - Acoustic coupler for simulating acoustic characteristics of human ears - Google Patents
Acoustic coupler for simulating acoustic characteristics of human ears Download PDFInfo
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- CN114374923B CN114374923B CN202111649408.8A CN202111649408A CN114374923B CN 114374923 B CN114374923 B CN 114374923B CN 202111649408 A CN202111649408 A CN 202111649408A CN 114374923 B CN114374923 B CN 114374923B
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- reed
- ring
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- 210000005069 ears Anatomy 0.000 title abstract description 7
- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 48
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 230000006835 compression Effects 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims abstract description 12
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 3
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 3
- 241001330002 Bambuseae Species 0.000 claims description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 3
- 239000011425 bamboo Substances 0.000 claims description 3
- 238000004088 simulation Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000003825 pressing Methods 0.000 description 4
- BWWVXHRLMPBDCK-UHFFFAOYSA-N 1,2,4-trichloro-5-(2,6-dichlorophenyl)benzene Chemical compound C1=C(Cl)C(Cl)=CC(Cl)=C1C1=C(Cl)C=CC=C1Cl BWWVXHRLMPBDCK-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000006467 substitution reaction 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/08—Mouthpieces; Microphones; Attachments therefor
- H04R1/083—Special constructions of mouthpieces
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Abstract
The invention provides an acoustic coupler simulating acoustic characteristics of human ears, and relates to the technical field of electroacoustic test equipment. The microphone mechanism comprises an outer ring sleeve, a net-shaped sheet, a first split reed, a first chuck, a sealing rubber ring, a second split reed, a second chuck, a complete reed, a fixed gasket, a fastening ring, a rubber gasket, a microphone sleeve, a microphone element, a microphone compression block, a microphone locking sleeve, a reinforcing ring and an outer ring locking block. When receiving sound wave information through the microphone element, the PCB board receives signals of the microphone element and converts the signals into electric signals to be output to a computer, and when the microphone mechanism resonates, the cross section area of the resistor is changed to change the resistance value, so that the current is changed according to the speaking sound change (sound wave frequency change), electroacoustic measurement of a product can be carried out under definite acoustic conditions, the product detection efficiency is improved, and the product production efficiency is further improved.
Description
Technical Field
The invention relates to the technical field of electroacoustic test equipment, in particular to an acoustic coupler for simulating acoustic characteristics of human ears.
Background
The metal microphone is a kind of microphone, which is a device for converting sound energy into electric energy, the electroacoustic tester is a special device for realizing electroacoustic measurement technique and subjective measurement technique of human ear, and the electroacoustic tester is equipped with corresponding software and special fittings for electroacoustic test, and can complete the electroacoustic performance test of loudspeaker, receiver, earphone, microphone, earphone and microphone assembly.
After the product is produced, the sounding function of the product needs to be detected, the electroacoustic measurement of the product cannot be carried out under the definite acoustic condition by the existing artificial measuring ear, so that the product detection efficiency is low, and the product production efficiency is affected.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides an acoustic coupler for simulating the acoustic characteristics of human ears, which solves the problems that the electroacoustic measurement of products cannot be carried out under definite acoustic conditions, so that the detection efficiency of the products is low and the production efficiency of the products is affected.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides an acoustic coupler of simulation human ear acoustic characteristic, includes foot rest mechanism, miaow head mechanism and receipts sound disc, the inside fixed connection miaow head mechanism of foot rest mechanism, miaow head mechanism top input fixed connection receives the sound disc.
Preferably, the base mechanism comprises a base box, a PCB and supporting feet, wherein the center of the bottom wall inside the base box is fixedly connected with the PCB, and the bottom wall of the base box is fixedly connected with three groups of supporting feet which are uniformly and annularly arranged.
Preferably, the miaow head mechanism includes outer lane sleeve, netted piece, first split reed, first chuck, sealing rubber ring, second split reed, second chuck, complete reed, fixed gasket, fastening ring, rubber packing ring, miaow head sleeve, miaow head component, miaow head compact heap, miaow head lock sleeve, reinforcing ring and outer lane lock piece, outer lane lock piece fixed connection is at the foot case top, outer lane lock piece top outside fixed connection outer lane sleeve, the inside roof delivery outlet fixed connection netted piece of outer lane sleeve, the first split reed of netted piece diapire fixed connection, first chuck of first split reed diapire fixed connection, first chuck diapire fixed connection second split reed, second split reed diapire fixed connection second chuck, second chuck diapire fixed connection complete reed, complete diapire fixed connection fixed gasket, fixed gasket diapire fixed connection fastening ring, outer lane lock piece roof fixed connection miaow head lock sleeve, miaow head lock sleeve roof center fixed connection miaow section of thick bamboo, miaow head lock sleeve fixed connection is located in the inside side wall reinforcing ring fixed connection, miaow head lock sleeve fixed connection is fixed connection to miaow head inside compression element.
Preferably, the top of the outer ring sleeve is fixedly connected with a sound receiving disc, and a plurality of groups of sound receiving holes are uniformly formed in the center of the sound receiving disc.
Preferably, the output end of the microphone element is connected with the input end of the PCB through a wire.
Preferably, the first chuck and the second chuck are both fixedly connected with a group of sealing rubber rings.
Preferably, the mesh sheet, the first split reed, the first chuck, the sealing rubber ring, the second split reed, the second chuck, the complete reed, the fixing gasket, the fastening ring, the rubber gasket, the microphone sleeve, the microphone element, the microphone compression block, the microphone locking sleeve and the fastening ring are all arranged inside the outer ring sleeve and are coaxial.
Preferably, the fixed gasket and the inner side wall of the rubber gasket are fixedly connected to the middle upper part of the microphone sleeve, and the inner side wall of the fastening ring is fixedly connected with the rubber gasket.
Working principle: the coupler is fixedly placed at a position to be detected through a supporting leg additionally arranged at the bottom of the footstool box, electroacoustic sound waves emitted by equipment enter the outer ring sleeve through sound receiving discs, sound waves drive the sound receiving discs to be received by the microphone elements through the mesh sheet, the first split reed, the second split reed and the complete reed, the microphone elements resonate together with the sound waves in the microphone sleeve through a microphone compression block fixed at the bottom, the outer ring sleeve is also driven by the fixing gasket and the fastening ring to resonate along with the sound waves, the microphone compression block is matched with the microphone elements to vibrate, sound waves cause resonance of a microphone mechanism, the microphone mechanism and the rest part form a special resistor, the cross section area of the resistor is changed when the microphone structure resonates, the resistance value is changed, the voltage is unchanged, current is changed according to speaking sound change (sound wave frequency change), meanwhile, a signal of the microphone elements is received by the microphone elements, the PCB board is converted into an electric signal and then is output to a computer, and personnel judges and detects through the electric signal transmitted by the PCB board.
(III) beneficial effects
The invention provides an acoustic coupler simulating acoustic characteristics of human ears. The beneficial effects are as follows:
according to the invention, through the additional microphone mechanism, electroacoustic sound waves emitted by equipment enter the outer ring sleeve through the sound receiving disc provided with the sound transmission holes, the sound waves drive the microphone elements to receive the sound waves through the mesh sheet, the first split reed, the second split reed and the complete reed, so that the microphone elements resonate together with the sound waves in the microphone sleeve through the microphone compression block fixed at the bottom, the fixed gasket and the fastening ring drive the outer ring sleeve to resonate along with the sound waves, the microphone compression block is matched with the microphone elements to vibrate, the sound waves cause the microphone mechanisms to resonate, the microphone mechanisms and the rest part form a special resistor, the microphone elements receive sound wave information, meanwhile, the PCB receives signals of the microphone elements and converts the signals into electric signals to be output to a computer, the cross-sectional area of the resistor is changed when the microphone mechanisms resonate, so that the resistance value is changed, the voltage is unchanged, and the current is changed according to the change of the speaking sound (change of the frequency of the sound waves), so that electroacoustic measurement of products can be performed under definite acoustic conditions, the product detection efficiency is improved, and the product production efficiency is further improved.
Drawings
FIG. 1 is an isometric view of the present invention;
FIG. 2 is a schematic diagram of the front internal structure of the present invention;
fig. 3 is an exploded view of the structure of the microphone mechanism of the present invention.
1, a foot seat mechanism; 2. a microphone mechanism; 3. a sound receiving disc; 101. a footstand box; 102. a PCB board; 103. supporting feet; 201. an outer ring sleeve; 202. a mesh sheet; 203. a first split reed; 204. a first chuck; 205. sealing rubber rings; 206. a second split reed; 207. a second chuck; 208. a complete reed; 209. fixing the gasket; 210. a fastening ring; 211. a rubber gasket; 212. a microphone sleeve; 213. a microphone element; 214. a microphone compacting block; 215. a microphone locking sleeve; 216. a reinforcing ring; 217. an outer ring locking block.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples:
as shown in fig. 1-3, an embodiment of the invention provides an acoustic coupler for simulating acoustic characteristics of human ears, which comprises a foot seat mechanism 1, a microphone mechanism 2 and an acoustic receiving disc 3, wherein the microphone mechanism 2 is fixedly connected inside the foot seat mechanism 1, and the input end at the top of the microphone mechanism 2 is fixedly connected with the acoustic receiving disc 3.
The foot seat mechanism 1 comprises a foot seat box 101, a PCB 102 and supporting feet 103, wherein the center of the bottom wall inside the foot seat box 101 is fixedly connected with the PCB 102, the bottom wall of the foot seat box 101 is fixedly connected with three groups of supporting feet 103 which are uniformly and annularly arranged, and the coupler is fixedly placed at a position to be detected through the supporting feet 103 additionally arranged at the bottom of the foot seat box 101.
The microphone mechanism 2 comprises an outer ring sleeve 201, a net sheet 202, a first split reed 203, a first chuck 204, a sealing rubber ring 205, a second split reed 206, a second chuck 207, a complete reed 208, a fixed gasket 209, a fastening ring 210, a rubber gasket 211, a microphone sleeve 212, a microphone element 213, a microphone pressing block 214, a microphone locking sleeve 215, a fastening ring 216 and an outer ring locking block 217, wherein the outer ring locking block 217 is fixedly connected to the top of the foot case 101, the outer side of the top of the outer ring locking block 217 is fixedly connected to the outer ring sleeve 201, an output port of the inner top wall of the outer ring sleeve 201 is fixedly connected to the net sheet 202, the bottom wall of the net sheet 202 is fixedly connected to the first split reed 203, the bottom wall of the first split reed 203 is fixedly connected to the first chuck 204, the bottom wall of the first chuck 204 is fixedly connected to the second split reed 206, the bottom wall of the second split reed 206 is fixedly connected to the second chuck 207, the bottom wall of the second chuck 207 is fixedly connected to the complete reed 208, the bottom wall of the complete reed 208 is fixedly connected with a fixed gasket 209, the bottom wall of the fixed gasket 209 is fixedly connected with a fastening ring 210, the top wall of an outer ring locking block 217 is fixedly connected with a microphone locking sleeve 215, the center of the top wall of the microphone locking sleeve 215 is fixedly connected with a microphone sleeve 212, the middle lower part of the inner side wall of the microphone locking sleeve 215 is fixedly connected with a reinforcing ring 216, the top of the reinforcing ring 216 is fixedly connected with a microphone pressing block 214, the inside of the microphone pressing block 214 is fixedly connected with a microphone element 213, electroacoustic sound waves emitted by equipment enter the outer ring sleeve 201 through sound receiving disc 3 provided with sound transmission holes, the sound waves drive the microphone elements 213 to be received by the microphone element 213 through the mesh sheet 202, the first split reed 203, the second split reed 206 and the complete reed 208, the microphone element 213 extends to the inside of the microphone sleeve 212, so that the microphone element 213 resonates with the sound waves in the microphone sleeve 212 through the microphone pressing block 214 fixed at the bottom, the fixed gasket 209 and the fastening ring 210 drive the outer ring sleeve 201 to resonate along with the outer ring sleeve 201, the microphone compression block 214 is matched with the microphone element 213 to vibrate, the sound wave causes the microphone mechanism 2 to resonate, the top of the outer ring sleeve 201 is fixedly connected with the receiving sound disc 3, a plurality of groups of receiving sound holes are uniformly formed in the center of the receiving sound disc 3, electroacoustic sound waves emitted by the device enter the inner part of the outer ring sleeve 201 through the receiving sound disc 3, the output end of the microphone element 213 is connected with the input end of the PCB 102 through wires, the first chuck 204 and the second chuck 207 are fixedly connected with a group of sealing rubber rings 205, the mesh sheet 202, the first split reed 203, the first chuck 204, the sealing rubber rings 205, the second split reed 206, the second chuck 207, the integral reed 208, the fixed gasket 209, the fastening ring 210, the rubber gasket 211, the microphone sleeve 212, the microphone element 213, the microphone compression block 214, the microphone locking sleeve 215 and the fastening ring 216 are all arranged in the outer ring sleeve 201, and are all coaxially arranged, the inner side walls of the fixed gasket 209 are fixedly connected with the microphone sleeve 212, the inner side walls of the fastening ring 210 are fixedly connected with the inner side walls of the microphone sleeve 212, the inner side walls of the fastening ring 210 are fixedly connected with the rubber gasket 211, the microphone element is changed to form a microphone signal, and the microphone signal is converted into a microphone signal when the microphone signal is received by the microphone signal, and the microphone signal is converted into a microphone signal, and the microphone signal is converted to the microphone signal, and the microphone signal has a change signal has a microphone signal, and the microphone signal has a change resistance, and the microphone signal has a change signal and a current and a change to a current.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides an acoustic coupler of simulation human ear acoustic characteristic, includes foot rest mechanism (1), miaow head mechanism (2) and receipts sound dish (3), its characterized in that: the inside of the foot seat mechanism (1) is fixedly connected with the microphone mechanism (2), and the input end at the top of the microphone mechanism (2) is fixedly connected with the sound receiving disc (3);
the microphone mechanism (2) comprises an outer ring sleeve (201), a mesh sheet (202), a first split reed (203), a first chuck (204), a sealing rubber ring (205), a second split reed (206), a second chuck (207), a complete reed (208), a fixed gasket (209), a fastening ring (210), a rubber gasket (211), a microphone sleeve (212), a microphone element (213), a microphone compression block (214), a microphone locking sleeve (215), a reinforcing ring (216) and an outer ring locking block (217), the outer ring locking block (217) is fixedly connected to the top of a footbox (101), the outer side of the top of the outer ring locking block (217) is fixedly connected with the outer ring sleeve (201), an inner top wall output port of the outer ring sleeve (201) is fixedly connected with the mesh sheet (202), a bottom wall of the mesh sheet (202) is fixedly connected with the first split (203), the bottom wall of the first reed (203) is fixedly connected with the first chuck (204), the bottom wall of the first reed (204) is fixedly connected with the second split (206), the bottom wall of the second reed (206) is fixedly connected with the second chuck (207), the bottom wall (208) is fixedly connected with the complete reed (209), fixed gasket (209) diapire fixed connection fastening ring (210), outer lane latch segment (217) roof fixed connection miaow head lock sleeve (215), miaow head cover section of thick bamboo (212) are connected to miaow head lock sleeve (215) roof center fixed connection, lower part fixed connection reinforcing ring (216) in miaow head lock sleeve (215) inside wall, reinforcing ring (216) top fixed connection miaow head compact heap (214), miaow head compact heap (214) inside fixed connection miaow head component (213), miaow head component (213) extend to miaow head cover section of thick bamboo (212) inside.
2. An acoustic coupler for simulating acoustic properties of a human ear according to claim 1, wherein: the base mechanism (1) comprises a base box (101), a PCB (printed circuit board) and supporting legs (103), wherein the center of the bottom wall inside the base box (101) is fixedly connected with the PCB (102), and the bottom wall of the base box (101) is fixedly connected with three groups of supporting legs (103) which are uniformly and annularly arranged.
3. An acoustic coupler for simulating acoustic properties of a human ear according to claim 1, wherein: the top of the outer ring sleeve (201) is fixedly connected with a sound receiving disc (3), and a plurality of groups of sound receiving holes are uniformly formed in the center of the sound receiving disc (3).
4. An acoustic coupler for simulating acoustic properties of a human ear according to claim 3, wherein: the output end of the microphone element (213) is connected with the input end of the PCB (102) through a wire.
5. An acoustic coupler for simulating acoustic properties of a human ear according to claim 3, wherein: the first clamping plate (204) and the second clamping plate (207) are internally and fixedly connected with a group of sealing rubber rings (205).
6. An acoustic coupler for simulating acoustic properties of a human ear according to claim 3, wherein: the novel microphone comprises a mesh sheet (202), a first split reed (203), a first chuck (204), a sealing rubber ring (205), a second split reed (206), a second chuck (207), a complete reed (208), a fixed gasket (209), a fastening ring (210), a rubber gasket (211), a microphone sleeve (212), a microphone element (213), a microphone compression block (214), a microphone locking sleeve (215) and a reinforcing ring (216), wherein the microphone sleeve, the microphone compression block, the microphone locking sleeve (214) and the reinforcing ring (216) are all arranged inside an outer ring sleeve (201), and are all coaxially arranged.
7. An acoustic coupler for simulating acoustic properties of a human ear according to claim 3, wherein: the fixing gasket (209) and the inner side wall of the rubber gasket (211) are fixedly connected to the middle upper part of the microphone sleeve (212), and the inner side wall of the fastening ring (210) is fixedly connected with the rubber gasket (211).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111649408.8A CN114374923B (en) | 2021-12-30 | 2021-12-30 | Acoustic coupler for simulating acoustic characteristics of human ears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111649408.8A CN114374923B (en) | 2021-12-30 | 2021-12-30 | Acoustic coupler for simulating acoustic characteristics of human ears |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114374923A CN114374923A (en) | 2022-04-19 |
| CN114374923B true CN114374923B (en) | 2024-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111649408.8A Active CN114374923B (en) | 2021-12-30 | 2021-12-30 | Acoustic coupler for simulating acoustic characteristics of human ears |
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|---|---|---|---|---|
| US4586194A (en) * | 1983-03-09 | 1986-04-29 | Hitachi, Ltd. | Earphone characteristic measuring device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8194870B2 (en) * | 2008-10-15 | 2012-06-05 | Siemens Hearing Instruments, Inc. | Test coupler for hearing instruments employing open-fit ear canal tips |
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| CN114374923A (en) | 2022-04-19 |
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