CN207978091U - A kind of adjustable microphone array holder in position - Google Patents
A kind of adjustable microphone array holder in position Download PDFInfo
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- CN207978091U CN207978091U CN201820421777.9U CN201820421777U CN207978091U CN 207978091 U CN207978091 U CN 207978091U CN 201820421777 U CN201820421777 U CN 201820421777U CN 207978091 U CN207978091 U CN 207978091U
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Abstract
The utility model discloses a kind of adjustable microphone array holders in position, including center to fix disk, more microphone struts, fixing muscle and outconnector；The center that disk is fixed at center is equipped with a connecting hole, and center fixes disk and multiple strut slots are circumferentially arranged at equal intervals, and one end of microphone strut is inserted in strut slot；It is equipped with multiple microphone mounting grooves in microphone strut, microphone is installed in microphone mounting groove and can be slided in microphone mounting groove；Fixing muscle circumferentially arranges, and microphone strut is fixedly connected with fixing muscle；Outconnector includes the cross bar and montant being fixedly connected, and cross bar is inserted into connecting hole and is fixed with center fixation disk, and montant bottom is fixed with the installation of external bracket base.The utility model has the beneficial effects that the position of microphone can be adjusted according to the sound source wave-length coverage of measurement object, it can meet requirement of the different objects to microphone array acoustical behavior without replacing array bracket, improve the scope of application of the sound source wavelength of microphone array.
Description
Technical field
The utility model belongs to identification of sound source technical field, is disbursed from the cost and expenses more particularly, to a kind of adjustable microphone array in position
Frame.
Background technology
Microphone array is a kind of acoustic measuring instrument for carrying out identification of sound source.Microphone array refers to by certain geometry
The array that several microphones made of structural arrangement form, it has very strong spatial selectivity, and need not move biography
Sound device can obtain mobile sound-source signal, while it can also realize the self-adapting detecting of sound source, determine in a certain range
Position and tracking, this makes microphone array be listed in numerous areas (such as hearing aid, TeleConference Bridge, computer terminal) and have
It and is widely applied, can realize speech enhan-cement, auditory localization, acoustic imaging detection, machine noise fault diagnosis, remote monitoring
The functions such as monitoring.Microphone array binding signal processing software can detect more acoustic source synchronizations, be reached in array according to sound wave
The delay difference of different location microphone judges the direction where sound source to detect the spatial information of sound source, realizes that sound source is known
Not.The Multiple factors such as the resolution ratio of identification of sound source and wave length of sound, microphone quantity, microphone spacing, array aperture are related, when
When wave length of sound range changes, reply sensor array coordinate position makes corresponding adjustment, to change microphone spacing
And array aperture, the resolution ratio of optimization array.
Array bracket is the necessary device for constituting microphone array system, is used for the coordinate position of solid-borne sound transmission device.Currently,
Generally be directed to designed by specific measurement object, the relative position of microphone cannot be adjusted existing microphone array holder
Section, the wavelength scope of application of microphone are fixed and narrow.When larger change occurs with the variation of measurement object for sound source wave-length coverage
When change, the resolution ratio of original microphone array is decreased obviously, and is unable to reach high-resolution requirement；In addition, existing transaudient
The volume of device array bracket is larger, and portability is poor, and the stability of array bracket is low, and microphone is caused to will produce when measuring
Large error.
Therefore, it is necessary to design a kind of adjustable microphone array holder in position, sat to solve the microphone in array
Mark can adapt to the variation of measurement object sound source wave-length coverage, need not replace array bracket, identification of sound source is at low cost, meets sound
High-resolution requirement needed for identifing source.
Utility model content
The purpose of this utility model be to provide it is a kind of it is simple in structure, can adjust microphone position, wave length of sound be applicable in
The adjustable microphone array holder in position of wide, identification of sound source the high resolution of range.
The technical solution of the utility model is as follows：
Disk, more microphone struts, fixing muscle and outer are fixed in a kind of adjustable microphone array holder in position, including center
Connector；
The center that disk is fixed at the center is equipped with a connecting hole, and the center fixes disk and multiple are circumferentially arranged at equal intervals
One end of bar slot, the microphone strut is inserted in strut slot；
Multiple microphone mounting grooves are equipped in the microphone strut, be equipped in the microphone mounting groove microphone and
Its position is adjustable, and the dimensions of the every microphone strut is identical；
The fixing muscle along the circumferential direction arranges, and the microphone strut is fixedly connected with fixing muscle；
The outconnector includes the cross bar and montant being fixedly connected, and the cross bar is fixedly connected with montant, the cross bar
It is inserted into connecting hole to fix by bolt and center fixation disk, the bottom of the montant is fixed with the installation of external bracket base.
Further, the radial equiangularly spaced distribution of the microphone strut.
Further, it is 2.25-3.0m that the distance between center of circle of disk is fixed in the outer end Yu center of the microphone strut.
Further, the quantity for the strut slot that the microphone strut is arranged corresponding thereto is 8-24.
Further, the microphone strut, which is bolted, is a little fixedly connected with fixing muscle.
Further, the fixing muscle circumferentially divides three-layer arrangement, arrangement form circle or regular polygon.
Further, the outconnector is in the L-type stood upside down.
Further, the radius that disk is fixed at the center is 200mm, and thickness is at least 10mm.
Further, the quantity of the microphone mounting groove is at least 4.
Further, the external bracket base in the montant bottom, the bracket base are tripod or scaffold.
The utility model has the advantages and positive effects of：Due to the adoption of the above technical scheme, on microphone strut
The microphone mounting groove of the hollow out of setting enables to fixture that microphone bottom is fastened on to any position of mounting groove, is loosening
Microphone can make corresponding displacement along mounting groove when fixture, change microphone according to practical wave length of sound convenient for survey crew
Coordinate position optimizes the acoustical behavior of microphone array, realizes required high-resolution requirement；Pass through the row of three layers of fixing muscle
Row improve the strength and stability of array bracket；In addition, outconnector can match with it, bracket base is fixedly connected, array branch
The stability of frame is high, expands the scope of application of the sound source wavelength of array.
Description of the drawings
Fig. 1 is the structural schematic diagram of the array bracket of the utility model；
Fig. 2 is the structural schematic diagram of the center fixation disk in the utility model；
Fig. 3 is the structural schematic diagram of microphone strut in the utility model；
Fig. 4 is the connection diagram of center the fixation disk and outer tie rod in the utility model.
In figure：
1, disk 2, microphone strut 3, fixing muscle are fixed in center
4, outconnector 401, cross bar 402, montant
5, connecting hole 6, strut slot 7, microphone mounting groove
8, it is bolted a little
Specific implementation mode
The utility model is described in further detail below in conjunction with specific embodiment.It should be appreciated that described herein
Specific embodiment is used only for explaining the utility model, is not used to limit the utility model, is never limited in the utility model
Protection domain.
Embodiment 1
As shown in Figures 1 to 4, the adjustable microphone array holder in the position of the utility model, including center fixation disk 1,
16 microphone struts 2, fixing muscle 3 and outconnector 4；The center that disk 1 is fixed at center is equipped with a connecting hole 5, and disk 1 is fixed at center
Along the equally circumferentially spaced 16 strut slots 6 of disk, strut slot 6 is symmetricly set on center and fixes on disk 1, and each strut is inserted
Corresponding inserted has microphone strut 2, microphone strut 2 to radially distribute in slot 6, and each microphone strut 2 is equiangularly spaced
Arrangement, it is 2.55m that the distance between the center of disk 1 is fixed at outer end and the center of microphone strut 2；It is equipped in microphone strut 2
Multiple microphone mounting grooves 7, microphone can corresponding displacement, and microphone be made in sliding in microphone mounting groove 7 by fixture
It is fixed on any position in microphone mounting groove 7 using fixture so that survey crew passes according to practical sound source wavelength shift
The coordinate position of sound device optimizes the acoustical behavior of microphone array.It is set in every fixing muscle 3 there are three being bolted a little 8, every passes
Sound device strut 2 is removably connect by bolt with fixing muscle 3, and fixing muscle 3 along the circumferential direction arranges, and connects and composes in the plane
Regular polygon, fixing muscle 3 are divided into three-layer arrangement, the integral strength for improving array bracket and stability.Outconnector 4 is in
The L-shaped of handstand, outconnector 4 include cross bar 401 and the montant 402 for being secured to connection, and cross bar 401 passes through across connecting hole 5
The back side that bolt fixes disk 1 with center is fixed, and bottom and the tripod of montant 402 are fixedly mounted to support array bracket.
Consolidate using microphone strut 2 made of high-strength aluminium-magnesium alloy and fixing muscle 3 and using center made of stainless steel
Price fixing 1, the whole intensity for improving array bracket, fixing muscle 3 are bolted a little 8 installations with microphone strut 2 and fix, effectively
Enhance the stability of array bracket.
Embodiment 2
As shown in Figures 1 to 4, the centrally disposed connecting hole 5 of disk 1 is fixed at center, the cross bar 401 of outconnector 4 is inserted
Enter connecting hole 5 and fix disk 1 using bolt and center to be fixed, the montant 402 of outconnector 4 and is used to support array bracket
Scaffold be connected and fixed, convenient for when measuring, the support array bracket that can stablize.Microphone is inserted from the front of array bracket
Enter to be installed in microphone mounting groove 7, the cross bar 401 of outconnector 4 is to be inserted into connecting hole 5 from the back side of array bracket.It is passing
The microphone mounting groove 7 of multiple hollow outs is provided in sound device strut 2, microphone can loosened by the fixture that its bottom connects
Under state, microphone can be made to make corresponding displacement along microphone mounting groove 7, when adjustment microphone to the coordinate bit adapted to
When setting, microphone can be fastened in microphone mounting groove 7 when fixture is tuned into tightening state；Strut slot 6 is symmetrical arranged
It is fixed on disk 1 at center, corresponding inserted has microphone strut 2 in strut slot 6, passes through spiral shell by microphone strut 2 and fixing muscle 3
Bolt is connected and fixed the array bracket of composition, selects microphone strut 2 and fixing muscle 3, Neng Gouti made of high-strength aluminium-magnesium alloy
Bottom and the support array of the outconnector 4 of the back side insertion of disk 1 are fixed in the integral strength and stability of high array bracket, center
The scaffold of holder is fixedly mounted, and is adjusted to suitable position convenient for array bracket and preferably measures.When measuring, array
The front of holder faces the estimated orientation where measurement object, and survey crew is passing according to practical sound source wavelength to adjust microphone
Microphone positional accuracy is improved, to optimize the acoustics of microphone array in accurate coordinate position on sound device mounting groove 7
Can, realize higher Measurement Resolution.
Embodiment 3
As shown in Figures 1 to 4, the adjustable microphone array holder in the position of the utility model, including center fixation disk 1,
Microphone strut 2, fixing muscle 3 and outconnector 4；The center that disk 1 is fixed at center is equipped with a connecting hole 5, and disk 1 is fixed along week in center
To setting strut slot 6 at equal intervals, strut slot 6 is symmetricly set on center and fixes on disk 1, and center is fixed on disk 1 and is provided with 24
A strut slot 6, corresponding inserted has microphone strut 2, microphone strut 2 to be arranged radially in each strut slot 6, each
The 2 equiangularly spaced arrangement of microphone strut, the outer end and the distance between the center of center fixation disk 1 of microphone strut 2 are
2.55m；Multiple microphone mounting grooves 7 are equipped in microphone strut 2, microphone can slide along microphone mounting groove 7 and make phase
Displacement, any position that microphone is slided by fixture and is fastened in microphone mounting groove 7, every fixing muscle 3 is answered to be equipped with
Three are bolted a little 8, and every microphone strut 2 is bolted a little 8 to be connect with fixing muscle 3, and fixing muscle 3 is along the circumferential direction
Divide three-layer arrangement, circle can be connected and composed in the plane, fixing muscle 3 is divided into three-layer arrangement.Outconnector 4 is in inverted L-shaped, including
Cross bar 401 and montant 402, the back side that cross bar 401 fixes disk 1 from center are inserted into after connecting hole 5 through bolt and center fixation disk 1
Fixed, bottom and the tripod of montant 402 are fixedly mounted to support array bracket.
Fixing muscle 3 is fixed in the plane to constitute circle, and is divided into three layers and along the circumferential direction arranges from inside to outside successively, point
It is not bolted with microphone strut 2 and a little 8 removably connect, the integral strength and stabilization of array bracket can be improved
Property, microphone strut 2 and fixing muscle 3 use the material of high-strength aluminium-magnesium alloy, and is bolted a little 8 using bolt
So that microphone strut 2 is removably connect with fixing muscle, and center fixation disk 1 is also removable with outconnector 4 by bolt
The connection unloaded carries more convenient, saving transport and measurement cost to reduce the total weight of array bracket.
One embodiment of the utility model is described in detail above, but the content is only the utility model
Preferred embodiment should not be considered as limiting the scope of the present invention.It is all to be made according to application scope of the utility model
Equivalent variations with improve etc., should all still belong within the patent covering scope of the utility model.
Claims (10)
1. a kind of adjustable microphone array holder in position, it is characterised in that：Disk (1), more microphone branch are fixed including center
Bar (2), fixing muscle (3) and outconnector (4)；
The center that disk (1) is fixed at the center is equipped with a connecting hole (5), and the center is fixed disk (1) and is circumferentially arranged at equal intervals
One end of multiple strut slots (6), the microphone strut (2) is inserted in strut slot (6)；
It is equipped with multiple microphone mounting grooves (7) in the microphone strut (2), biography is installed in the microphone mounting groove (7)
For sound device while position is adjustable, the dimensions of the every microphone strut (2) is identical；
The fixing muscle (3) along the circumferential direction arranges, and the microphone strut (2) is fixedly connected with fixing muscle (3)；
The outconnector (4) includes the cross bar (401) being fixedly connected and montant (402), and the cross bar (401) is inserted into connecting hole
(5) it fixes disk (1) by bolt and center to fix, bottom and the installation of external bracket base of the montant (402) are fixed.
2. microphone array holder according to claim 1, it is characterised in that：The microphone strut (2) is radial
Equiangularly spaced distribution.
3. microphone array holder according to claim 1, it is characterised in that：The outer end of the microphone strut (2) with
It is 2.25-3.0m that the distance between center of circle of disk (1) is fixed at center.
4. the microphone array holder according to any one of claim 1-3, it is characterised in that：The microphone strut
(2) quantity for the strut slot (6) being arranged corresponding thereto is 8-24.
5. microphone array holder according to claim 4, it is characterised in that：The microphone strut (2) passes through bolt
Tie point (8) is fixedly connected with fixing muscle (3).
6. microphone array holder according to claim 5, it is characterised in that：The fixing muscle (3) circumferentially divides three layers
Arrangement, arrangement form circle or regular polygon.
7. microphone array holder according to claim 6, it is characterised in that：The outconnector (4) is in the L to stand upside down
Type.
8. microphone array holder according to claim 7, it is characterised in that：The radius that disk (1) is fixed at the center is
200mm, thickness are at least 10mm.
9. microphone array holder according to claim 8, it is characterised in that：The quantity of the microphone mounting groove (7)
At least 4.
10. microphone array holder according to claim 9, it is characterised in that：External one of montant (402) bottom
Frame pedestal, the bracket base are tripod or scaffold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820421777.9U CN207978091U (en) | 2018-03-27 | 2018-03-27 | A kind of adjustable microphone array holder in position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820421777.9U CN207978091U (en) | 2018-03-27 | 2018-03-27 | A kind of adjustable microphone array holder in position |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207978091U true CN207978091U (en) | 2018-10-16 |
Family
ID=63763704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820421777.9U Active CN207978091U (en) | 2018-03-27 | 2018-03-27 | A kind of adjustable microphone array holder in position |
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| Country | Link |
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| CN (1) | CN207978091U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109633551A (en) * | 2019-01-08 | 2019-04-16 | 中国电子科技集团公司第三研究所 | A kind of acoustic array of detectable a variety of acoustic targets |
| CN110411557A (en) * | 2019-07-23 | 2019-11-05 | 河北师范大学 | A kind of microphone array frame body measuring electric automobile motor system noise |
| CN111122105A (en) * | 2020-02-19 | 2020-05-08 | 中国空气动力研究与发展中心低速空气动力研究所 | Large microphone supporting system for wind tunnel |
| CN112179483A (en) * | 2020-09-28 | 2021-01-05 | 上海工程技术大学 | Microphone array with scalable aperture |
| CN112856154A (en) * | 2021-01-18 | 2021-05-28 | 西北工业大学 | Multi-degree-of-freedom array bracket for acoustic directivity measurement |
| CN114263823A (en) * | 2021-12-24 | 2022-04-01 | 重庆长安汽车股份有限公司 | Microphone positioning device for volume sound source calibration |
-
2018
- 2018-03-27 CN CN201820421777.9U patent/CN207978091U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109633551A (en) * | 2019-01-08 | 2019-04-16 | 中国电子科技集团公司第三研究所 | A kind of acoustic array of detectable a variety of acoustic targets |
| CN110411557A (en) * | 2019-07-23 | 2019-11-05 | 河北师范大学 | A kind of microphone array frame body measuring electric automobile motor system noise |
| CN111122105A (en) * | 2020-02-19 | 2020-05-08 | 中国空气动力研究与发展中心低速空气动力研究所 | Large microphone supporting system for wind tunnel |
| CN111122105B (en) * | 2020-02-19 | 2021-09-07 | 中国空气动力研究与发展中心低速空气动力研究所 | Large microphone supporting system for wind tunnel |
| CN112179483A (en) * | 2020-09-28 | 2021-01-05 | 上海工程技术大学 | Microphone array with scalable aperture |
| CN112179483B (en) * | 2020-09-28 | 2022-07-05 | 上海工程技术大学 | Microphone array with scalable aperture |
| CN112856154A (en) * | 2021-01-18 | 2021-05-28 | 西北工业大学 | Multi-degree-of-freedom array bracket for acoustic directivity measurement |
| CN112856154B (en) * | 2021-01-18 | 2022-09-27 | 西北工业大学 | Multi-degree-of-freedom array bracket for acoustic directivity measurement |
| CN114263823A (en) * | 2021-12-24 | 2022-04-01 | 重庆长安汽车股份有限公司 | Microphone positioning device for volume sound source calibration |
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