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Microphone support for in-vehicle acoustic mode measurement and testing

A technology for microphones and tests, applied in the direction of machines/brackets, supporting machines, mechanical equipment, etc., can solve the problems of limited vehicle models, difficult installation, and difficulty in ensuring the position accuracy of microphones, and achieve easy processing, simple structure, and convenient installation Effect

Inactive Publication Date: 2014-01-15
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a microphone bracket for interior acoustic modal measurement test in order to solve the problems of difficulty in installation of the existing microphone bracket, difficulty in ensuring the accuracy of the position of the microphone, and limited application of the bracket to vehicle models.

Method used

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  • Microphone support for in-vehicle acoustic mode measurement and testing
  • Microphone support for in-vehicle acoustic mode measurement and testing
  • Microphone support for in-vehicle acoustic mode measurement and testing

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Experimental program
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specific Embodiment approach 1

[0015] Specific implementation mode 1. Combination Figure 1 to Figure 9 Describe this embodiment, the microphone bracket for the acoustic mode measurement test in the vehicle, including the main bracket 1, the auxiliary bracket 2, the microphone positioning clip 3, the microphone 4, the screw 5A, the connecting rod 6 of the main and auxiliary bracket, the bolt 7, and the connecting rod clamp 8 , foot bracket components and other main components. Wherein the microphone is installed on the auxiliary bracket 2 by the microphone positioning clip 3, the main bracket 1 and the auxiliary bracket 2 are connected by the main and auxiliary bracket connecting rod 6, one end of the connecting rod is connected to the auxiliary bracket by a bolt, and the other end is connected by a connecting rod clamp 8 The main bracket 1; the connecting rod clamp 8 is adjusted with nuts to ensure that the auxiliary bracket 2 can adjust its position in the vertical direction; the auxiliary bracket 2 is ma...

specific Embodiment approach 2

[0019] Embodiment 2. This embodiment is the installation and use method of the microphone bracket for the acoustic modal measurement test in the vehicle described in Embodiment 1. The specific process is:

[0020] 1. Adjust the angle and height of the three foot brackets on both sides so that the microphone bracket can be stably supported;

[0021] 2. Adjust the telescopic length of the guide rod in the main and auxiliary brackets according to the height and width that the microphone needs to be arranged;

[0022] 3. Select the number of microphones and the installation interval according to the needs, and install the microphones;

[0023] 4. Adjust the height of the microphone by adjusting the height of the auxiliary bracket during the measurement process;

[0024] 5. Change the position of the microphone bracket, and repeat the above steps until the sound pressure measurement is completed.

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Abstract

The invention relates to a microphone support, in particular to a microphone support for an in-vehicle acoustic mode measurement and testing. The problems that an existing microphone support is difficult to install, accuracy of the position of a microphone is difficult to guarantee, and the microphone support has limitations when being applied to vehicle models. The microphone support comprises a main support, an auxiliary support, a microphone location clamp, a main-auxiliary support connecting rod, a connecting rod clamp, a bolt and a foot support assembly. The main support and the auxiliary support are respectively composed of a cylinder structure and a guiding rod, circular holes are formed in a cylinder on the outer side at a certain distance interval, the cylinders and the guiding rods are respectively provided with scales in a marked mode, and a spring pin is arranged on the guiding rod in each cylinder and used for being matched with the circular holes in each cylinder to enable the height and the width of the microphone support to be conveniently changed. Threads are arranged on the main-auxiliary support connecting rod, and the threads are matched with internal threads of the connecting rod clamp to achieve the effect of being connected with the main support and the auxiliary support. The foot support assembly vertically moves in an up-and-down mode along the main support, and the height can be adjusted in the vertical direction. The microphone support is simple in structure and convenient to machine, carry and install.

Description

technical field [0001] The invention relates to a microphone bracket for a vehicle interior acoustic mode measurement test. Background technique [0002] At present, when measuring the acoustic mode in the car at home and abroad, it is necessary to establish a microphone array distributed around the acoustic cavity in the car to analyze the mode of the acoustic cavity in the car. In order to accurately analyze the mode of the acoustic cavity in the vehicle, the established microphone array needs hundreds or even thousands of measurement points. During the measurement, the microphone bracket is generally used to fix the microphone at a predetermined position. However, the sound cavity in the car, especially the sound cavity in the passenger car, has a complex spatial structure, uneven floor, and extremely difficult installation of the microphone bracket. The microphone brackets used in the traditional method are mostly simple brackets made for a certain fixed car model. Thes...

Claims

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Application Information

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IPC IPC(8): F16M11/04F16M11/26F16M13/02
Inventor 陈书明彭登志王登峰王振宇李伟蒋荣超史天泽
Owner JILIN UNIV
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