CN204575104U - A kind of three-dimensional microphone array stretch-draw orientator - Google Patents

A kind of three-dimensional microphone array stretch-draw orientator Download PDF

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Publication number
CN204575104U
CN204575104U CN201520191432.5U CN201520191432U CN204575104U CN 204575104 U CN204575104 U CN 204575104U CN 201520191432 U CN201520191432 U CN 201520191432U CN 204575104 U CN204575104 U CN 204575104U
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China
Prior art keywords
draw
microphone
stretch
steel
rectangle steel
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Expired - Fee Related
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CN201520191432.5U
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Chinese (zh)
Inventor
余世策
沈国辉
蒋建群
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Zhejiang University ZJU
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Zhejiang University ZJU
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Priority to CN201520191432.5U priority Critical patent/CN204575104U/en
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Publication of CN204575104U publication Critical patent/CN204575104U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model discloses a kind of three-dimensional microphone array stretch-draw orientator.Parallel at the two ends on rectangular steel plates top two joist steel are installed, joist steel top flange has a gain along joist steel length direction, two rectangle steel frameworks are one group, at least one group of rectangle steel framework be parallel to each other is slidably mounted in two gains perpendicular to joist steel respectively by bolt, each rectangle steel framework four frames have a gain along frame center plane, bungee two ends are each passed through the gain of rectangle steel framework two opposite side, be fixed on rectangle steel framework with half pole stretch-draw respectively, on two rectangle steel frameworks, bungee point of crossing clamps the rear and front end of microphone respectively, microphone is connected to signal sampler collected sound signal.The utility model is used for accurately installing and adjusting the quantity of microphone in microphone array, the shape of microphone array and size, and the foundation for microphone array physical model provides efficient support platform.

Description

A kind of three-dimensional microphone array stretch-draw orientator
Technical field
The utility model relates to noise testing test unit, especially relates to a kind of three-dimensional microphone array stretch-draw orientator.
Background technology
Noise pollution is that society four one of pollutes greatly, communications and transportation, vehicle are blown a whistle, man-made noise, building operation, wind produced noise etc. have become " stealthy killer " in city, have a strong impact on the health of people, the research carrying out Noise measarement has become important direction.Noise testing technology is the important means of research Noise measarement, to the location of sound source and quantitatively most important in noise testing technology, only when specify that the position that noise produces and intensity, just can take appropriate measures and carry out Noise measarement, also could carry out Efficient Evaluation to the effect of Noise measarement.The noise testing technology of current forefront is microphone array technology, microphone array refers to arrange placement one group of microphone at a certain distance, the interaction of the small time difference in array between each microphone is arrived at by sound wave, can obtain than the better directive property of single microphone and signal to noise ratio (S/N ratio), microphone array is divided into one dimensional linear array row, two-dimensional planar array and three dimensions array, the quantity of microphone, arrayed shape and array sizes all affect the precision of noise location, need the test effect of more different array under many circumstances.Installation site accuracy requirement due to microphone each in microphone array is higher and should reduce the disturbing effect blocking to eliminate sound around microphone as far as possible, therefore the carrier for installing microphone array is most important, the domestic microphone array that is not also specifically designed to installs the device of locating at present, limits the development of this technology to a certain extent.
Utility model content
The purpose of this utility model is to provide a kind of three-dimensional microphone array stretch-draw orientator, for accurately installing three-dimensional microphone array and greatly can reducing the sound interference effect around microphone, make change number of microphone, change array configuration and size become very convenient, for applying of microphone array provides important hardware support simultaneously.
The utility model solves the technical scheme that its technical matters adopts:
The utility model is parallel at the two ends on rectangular steel plates top is provided with two joist steel, joist steel top flange has a gain along joist steel length direction, two rectangle steel frameworks are one group, at least one group of rectangle steel framework be parallel to each other is slidably mounted in two gains perpendicular to joist steel respectively by bolt, described each rectangle steel framework four frames have a gain along frame center plane, bungee two ends are each passed through the gain of rectangle steel framework two opposite side, be fixed on rectangle steel framework with half pole stretch-draw respectively, on two rectangle steel frameworks, bungee point of crossing clamps the rear and front end of microphone respectively, microphone is connected to signal sampler collected sound signal.
Described rectangle steel framework four frames all indicate rule, and joist steel top flange indicates rule along gain direction.
Described bungee stretch-draw direction is perpendicular to the frame at two ends, and bungee selects one or a few to be formed by connecting according to stretch-draw length.
Described half diameter of the rod is identical and be all less than microphone cross-sectional diameter, and described half pole length is greater than the width of gain.
Described two rectangle steel frameworks are in one group, and the distance of two rectangle steel frame center planes is less than the length of microphone, identical with the bungee stretch-draw form on two rectangle steel frameworks in group.
The beneficial effect that the utility model has is:
The utility model accurately can be installed and adjust the quantity of microphone in microphone array, the shape of microphone array and size, and fast construction also checks the reliability of microphone array and microphone is less by the impact of support member.The utility model is that the foundation of microphone array physical model provides efficient support platform, for applying of microphone array lays the foundation.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the side view of Fig. 1.
Fig. 4 is Fig. 1 partial enlarged drawing.
Fig. 5 is Fig. 3 partial enlarged drawing.
In figure: 1, rectangular steel plates, 2, joist steel, 3, gain, 4, rectangle steel framework, 5, bolt, 6, gain, 7, bungee, 8, half pole, 9, microphone, 10, rule.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Fig. 5, the utility model is parallel at the two ends on rectangular steel plates 1 top is provided with two joist steel 2, joist steel 2 top flange has a gain 3 along joist steel 2 length direction, two rectangle steel frameworks 4 are one group, at least one group of rectangle steel framework 4 be parallel to each other is slidably mounted in two gains 3 perpendicular to joist steel 2 respectively by bolt 5, Fig. 1, Fig. 2, be three groups of rectangle steel frameworks 4 be parallel to each other in Fig. 3, described each rectangle steel framework 4 four frames have a gain 6 along frame center plane, bungee 7 two ends are each passed through the gain 6 of rectangle steel framework 4 liang of opposite side, be fixed on rectangle steel framework 4 with half pole 8 stretch-draw respectively, on two rectangle steel frameworks 4, bungee 5 point of crossing clamps the rear and front end of microphone 9 respectively, microphone 9 is connected to signal sampler collected sound signal.
As shown in Figure 2, Figure 4 shows, described rectangle steel framework 4 four frames all indicate rule 10, joist steel 2 indicates rule 10 along gain 3 direction.
As Figure 1 and Figure 4, described bungee 7 stretch-draw direction is perpendicular to the frame at two ends, and bungee 7 selects one or a few to be formed by connecting according to stretch-draw length.
As shown in Figure 4, Figure 5, described half pole 8 diameter is identical and be all less than microphone 9 cross-sectional diameter, and described half pole 8 length is greater than the width of gain 6.
As shown in Figure 2 and Figure 3, described two rectangle steel frameworks 4 are in one group, the distance of two rectangle steel framework 4 central planes is less than the length of microphone 9, identical with the bungee 7 stretch-draw form on two rectangle steel frameworks 4 in group, can be arranged in parallel some groups of rectangle steel frameworks 4 as required on joist steel 2.
embodiment:
Now be installed as example so that using method of the present utility model to be described with certain three-dimensional microphone array.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Fig. 5, first two joist steel 2 are installed on side by side the two ends of rectangular steel plates 1 towards noise source, and measure the distance of joist steel 2 front end and noise source, by three groups, totally six rectangle steel frameworks 4 are parallel is installed in the gain 3 of two joist steel 2, guarantee that the distance with group rectangle steel framework 4 central plane is less than the length of microphone 9, the rule 10 on joist steel 2 is utilized to determine the particular location of three groups of rectangle steel frameworks 4 according to microphone array three-dimensional coordinate, according to the stretch-draw position of microphone array three-dimensional coordinate determination bungee 7, half pole, 8 pairs of bungees 7 are utilized to carry out stretch-draw and be fixed on the frame of opposite side, ensure with the bungee 7 stretch-draw position on group rectangle steel framework 4 identical, repeat the stretch-draw of bungee 7 until all form two point of crossing with group rectangle steel framework 4 designs on three-dimensional coordinate relevant position with microphone array, finally microphone 9 inductive head is inserted two point of crossing one by one towards noise source, utilize stretching force clamping microphone 9 front and rear part of bungee 7, each microphone 9 is connected with data collecting instrument and starts collected sound signal.
Above-mentioned embodiment is used for the utility model is described; instead of the utility model is limited; in the protection domain of spirit of the present utility model and claim, to any modifications and changes that the utility model is made, all fall into protection domain of the present utility model.

Claims (5)

1. a three-dimensional microphone array stretch-draw orientator, it is characterized in that: parallel at the two ends on rectangular steel plates (1) top two joist steel (2) are installed, joist steel (2) top flange has a gain (3) along joist steel (2) length direction, two rectangle steel frameworks (4) are one group, at least one group of rectangle steel framework (4) be parallel to each other is slidably mounted in two gains (3) perpendicular to joist steel (2) respectively by bolt (5), described each rectangle steel framework (4) four frames have a gain (6) along frame center plane, bungee (7) two ends are each passed through the gain (6) of rectangle steel framework (4) two opposite side, half pole (8) stretch-draw is used to be fixed on rectangle steel framework (4) respectively, two upper bungee (5) point of crossing of rectangle steel framework (4) clamp the rear and front end of microphone (9) respectively, microphone (9) is connected to signal sampler collected sound signal.
2. one according to claim 1 three-dimensional microphone array stretch-draw orientator, it is characterized in that: described rectangle steel framework (4) four frames all indicate rule (10), and joist steel (2) top flange indicates rule (10) along gain (3) direction.
3. one according to claim 1 three-dimensional microphone array stretch-draw orientator, is characterized in that: described bungee (7) stretch-draw direction is perpendicular to the frame at two ends, and bungee (7) selects one or a few to be formed by connecting according to stretch-draw length.
4. one according to claim 1 three-dimensional microphone array stretch-draw orientator, is characterized in that: described half pole (8) diameter is identical and be all less than microphone (9) cross-sectional diameter, and described half pole (8) length is greater than the width of gain (6).
5. one according to claim 1 three-dimensional microphone array stretch-draw orientator, it is characterized in that: described two rectangle steel frameworks (4) are in one group, the distance of two rectangle steel framework (4) central planes is less than the length of microphone (9), identical with bungee (7) the stretch-draw form on two rectangle steel frameworks (4) in group.
CN201520191432.5U 2015-04-01 2015-04-01 A kind of three-dimensional microphone array stretch-draw orientator Expired - Fee Related CN204575104U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520191432.5U CN204575104U (en) 2015-04-01 2015-04-01 A kind of three-dimensional microphone array stretch-draw orientator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520191432.5U CN204575104U (en) 2015-04-01 2015-04-01 A kind of three-dimensional microphone array stretch-draw orientator

Publications (1)

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CN204575104U true CN204575104U (en) 2015-08-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104776877A (en) * 2015-04-01 2015-07-15 浙江大学 Three-dimensional microphone array tensioning positioning instrument

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104776877A (en) * 2015-04-01 2015-07-15 浙江大学 Three-dimensional microphone array tensioning positioning instrument
CN104776877B (en) * 2015-04-01 2017-05-03 浙江大学 Three-dimensional microphone array tensioning positioning instrument

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CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150819

Termination date: 20170401