CN204539402U - A kind of microphone arm for the test of high sound intensity noise circumstance - Google Patents

A kind of microphone arm for the test of high sound intensity noise circumstance Download PDF

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Publication number
CN204539402U
CN204539402U CN201520195840.8U CN201520195840U CN204539402U CN 204539402 U CN204539402 U CN 204539402U CN 201520195840 U CN201520195840 U CN 201520195840U CN 204539402 U CN204539402 U CN 204539402U
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China
Prior art keywords
microphone
arm
test
pole
sound intensity
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CN201520195840.8U
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Chinese (zh)
Inventor
张立
许绯
王兰
郭定文
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AVIC Aircraft Strength Research Institute
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AVIC Aircraft Strength Research Institute
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Priority to CN201520195840.8U priority Critical patent/CN204539402U/en
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Abstract

The utility model belongs to high sound intensity noise circumstance experimental technique field, particularly relates to a kind of microphone arm for the test of high sound intensity noise circumstance.Described microphone arm comprises microphone pole, and described microphone pole can be stretched vertically, and microphone pole installs support arm, and support arm can rotate.Microphone arm described in the utility model, can realize microphone in height and the adjustment in directive property direction, and by the microphone sleeve design of counterbalance design and flexible material, to avoid the vibration of support.

Description

A kind of microphone arm for the test of high sound intensity noise circumstance
Technical field
The utility model provides a kind of microphone arm for the test of high sound intensity noise circumstance, relates to very noisy experimental technique and belongs to very noisy experimental technique.
Background technology
In ambient noise test, microphone is placed in reverberation room, need " place microphone at each different major surfaces near testpieces, apart from surperficial 0.5m, or the centre between centre of surface and locular wall, get smaller in both ".In very noisy test, there is very noisy and air-flow in reverberation room, the vibration of microphone arm can be caused, thus affect the accuracy of noise testing data.
The microphone arm of current domestic and international common support, as the B & K company of Denmark, domestic popularity company etc., be mainly used in the installation of low sound intensity microphone, the noise overall sound pressure level of its installation environment is within 130dB.
Therefore, need design microphone arm, unlikely generation vibration in very noisy test, affect the accuracy of noise testing, meanwhile, setting height(from bottom) and the setting angle of microphone are conveniently adjusted.
Utility model content
The utility model object: a kind of microphone arm for the test of high sound intensity noise circumstance is provided, easy to operate, the noise circumstance test in various high sound intensity reverberation room can be met.
Technical solutions of the utility model: a kind of microphone arm for the test of high sound intensity noise circumstance, it comprises pole 101, support arm 102, sleeve pipe 103, base 104 and cradle head 105, pole 101 is arranged on base 104, support arm 102 is arranged on pole 101 top by cradle head 105, and support arm 102 front end is provided with the sleeve pipe 103 installed for microphone, described support arm 102 regulates direction by cradle head 105, and then regulates the directive property of microphone.
Described sleeve pipe 103 is metal sleeve 301, and its diameter is according to high-intensity microphone size design, and flexible anti-vibration material 302 is pasted in inside, and clamps with clip 303.
Described cradle head 105 is disc structure, and it punches and span 15 °, and microphone uses after installing and fixes support arm 102 through the connect-disconnect structure in hole on disc structure.
Described base 104 is provided with counterweight, and bottom is provided with free wheel.
Between described pole 101 and support arm 102, be bolt between pole 101 with base 104 and be connected.
The utility model beneficial effect: the microphone arm of the utility model design, adjusts height and the directive property of microphone by pole 101, support arm 102 and cradle head 105; Pole 101, support arm 102 and cradle head 105 make to be tightened by bolts, and base 104 designs counterweight, microphone can be made in strong noise environment not produce vibration, guarantee the accuracy of noise testing; Flexible anti-vibration material is pasted in sleeve pipe 103 inside, effectively can fix microphone.
Accompanying drawing explanation
Fig. 1 high-intensity microphone support Design is always schemed;
Fig. 2 microphone sleeve pipe design drawing;
Fig. 3 cradle head design drawing,
Wherein, 101-pole, 102-support arm, 103-sleeve pipe, 104-base, 105-cradle head, 301-metal sleeve, 302-flexible anti-vibration material, 303-clip.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
As shown in Figure 1, the utility model is used for the microphone arm pole 101 of high sound intensity noise circumstance test, support arm 102, sleeve pipe 103 and base 104.Wherein, described microphone pole 101 is vertically arranged on base 104, and is sleeve design, can axial stretching, regulates for microphone height.Described microphone support arm 102 is vertically set on pole 101 top by cradle head, and its front end mounting sleeve 103, sleeve pipe 103 is for the installation of microphone.Described support arm 102 regulates direction by cradle head 105, and then regulates the directive property of microphone.
As shown in Figure 2, described sleeve pipe 103 is metal sleeve 301, and its diameter is according to high-intensity microphone size design, and flexible anti-vibration material 302 is pasted in inside, and clamps with clip 303, can ensure that microphone does not vibrate in high sound ambient.
As shown in Figure 3, described cradle head 105 is disc structure, and it punches and span 15 °, and can change the sensing of microphones every 15 °, microphone is installed rear plug structure and fixed support arm 102, and support arm can be made not vibrate in high sound ambient.
In addition, described microphone pole 101, support arm 102 select bolt to fix, and therefore pole 101 can regulate vertically, for adjusting the height of microphone.And microphone base 104 designs counterweight, and the vibration of microphone arm in high sound intensity noise circumstance can be reduced further, in addition, below microphone base 104, universal wheel is installed, convenient mobile.
The high-intensity microphone support of the utility model design is easy to operate, during use, is first arranged on by microphone in microphone sleeve pipe, then regulates support arm and pole, and make the sensing of microphone and highly meet test demand, tight a bolt locking.

Claims (5)

1. the microphone arm for the test of high sound intensity noise circumstance, it is characterized in that, comprise pole [101], support arm [102], sleeve pipe [103], base [104] and cradle head [105], pole [101] is arranged on base [104], support arm [102] is arranged on pole [101] top by cradle head [105], and support arm [102] front end is provided with the sleeve pipe [103] installed for microphone, described support arm [102] regulates direction by cradle head [105], and then regulate the directive property of microphone.
2. the microphone arm for the test of high sound intensity noise circumstance according to claim 1, it is characterized in that, described sleeve pipe [103] is metal sleeve [301], its diameter is according to high-intensity microphone size design, inner stickup flexible anti-vibration material [302], and clamp with clip [303].
3. the microphone arm for the test of high sound intensity noise circumstance according to claim 1, it is characterized in that, described cradle head [105] is disc structure, it punches and span 15 °, and microphone uses after installing and fixes support arm [102] through the connect-disconnect structure in hole on disc structure.
4. the microphone arm for the test of high sound intensity noise circumstance according to claim 1, it is characterized in that, [104] are provided with counterweight to described base, and bottom is provided with free wheel.
5. the microphone arm for the test of high sound intensity noise circumstance according to claim 1, is characterized in that, between described pole [101] and support arm [102], be bolt and be connected and fixed between pole [101] and base [104].
CN201520195840.8U 2015-04-02 2015-04-02 A kind of microphone arm for the test of high sound intensity noise circumstance Active CN204539402U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520195840.8U CN204539402U (en) 2015-04-02 2015-04-02 A kind of microphone arm for the test of high sound intensity noise circumstance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520195840.8U CN204539402U (en) 2015-04-02 2015-04-02 A kind of microphone arm for the test of high sound intensity noise circumstance

Publications (1)

Publication Number Publication Date
CN204539402U true CN204539402U (en) 2015-08-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520195840.8U Active CN204539402U (en) 2015-04-02 2015-04-02 A kind of microphone arm for the test of high sound intensity noise circumstance

Country Status (1)

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CN (1) CN204539402U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105509875A (en) * 2015-11-26 2016-04-20 常州大学 Wall-hanging type sound intensity scanning test device
CN110320004A (en) * 2019-08-22 2019-10-11 中国空气动力研究与发展中心低速空气动力研究所 A kind of support device tested for sonic transducer directive property in wind-tunnel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105509875A (en) * 2015-11-26 2016-04-20 常州大学 Wall-hanging type sound intensity scanning test device
CN110320004A (en) * 2019-08-22 2019-10-11 中国空气动力研究与发展中心低速空气动力研究所 A kind of support device tested for sonic transducer directive property in wind-tunnel
CN110320004B (en) * 2019-08-22 2020-11-20 中国空气动力研究与发展中心低速空气动力研究所 Supporting device for directivity test of acoustic microphone in wind tunnel

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