Acoustic coefficient testing device and testing method

A technology of testing device and testing method, applied in the direction of using sonic/ultrasonic/infrasonic waves to analyze solids, analyze materials, instruments, etc., can solve the problems of reducing testing efficiency, unable to perform acoustic testing of multiple materials, etc., and achieve the effect of improving testing efficiency

Active Publication Date: 2022-08-09
BYD CO LTD +1
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Problems solved by technology

However, in this case, only one material to be tested can be tested in the impedance tube. If multiple materials to be tested are placed in the impedance tube, the acoustic performance of the former material to be tested will easily affect the acoustic performance of the latter material to be tested. Therefore, the current acoustic testing device cannot perform acoustic testing on a variety of materials, which reduces the testing efficiency

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  • Acoustic coefficient testing device and testing method
  • Acoustic coefficient testing device and testing method
  • Acoustic coefficient testing device and testing method

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Embodiment Construction

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present application.

[0022] In the description of the embodiments of the present application, it should be understood that the terms "length", "head end", "end", "first", "last", "previous", "next", etc. indicate the orientation Or the positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not imply or indi...

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Abstract

The application provides an acoustic coefficient test device and a test method. The acoustic coefficient test device includes a speaker, an impedance tube and a sensor assembly. The impedance tube includes at least three sound guide tubes that are bent and connected in sequence and communicated with each other. The first sound guide tube The head end is docked with the speaker, and the connection between two adjacent sound guide pipes is used to install the material to be tested. The material to be tested can reflect the sound wave signal in the previous sound guide pipe to the next sound guide pipe. The sensor assembly includes at least three A group of main body sensors, each group of main body sensors are respectively installed in each sound guide pipe, and include a plurality of main body sensors arranged side by side along the length direction of the sound guide pipe, each main body sensor is used to collect the sound waves in each sound guide pipe Signal. The impedance tube includes at least three sound guide tubes that are bent and connected in sequence and communicated with each other. Materials to be tested are provided at the joints of two adjacent sound guide tubes, so that the acoustic test can be performed on multiple materials to be tested, and the test efficiency is improved. .

Description

technical field [0001] The application relates to the technical field of acoustic testing, and in particular to an acoustic coefficient testing device and a testing method. Background technique [0002] At present, the acoustic coefficient test of materials adopts impedance tubes, sensors and data collectors. The materials to be tested are placed in the impedance tubes, sensors are installed on both sides of the materials to be tested, and the sensor signals on both sides of the materials to be tested are collected by the data collector. , so as to calculate the acoustic coefficient of the material to be tested. However, in this case, only one material to be tested can be tested in the impedance tube. If multiple materials to be tested are placed in the impedance tube, the acoustic performance of the former material to be tested will easily affect the performance of the latter material to be tested. Therefore, the current acoustic testing device cannot perform acoustic test...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N29/09
CPCG01N29/09G01N2291/018G01N2291/023G01N2291/028
Inventor 范丹丹孙亚轩赵永吉
Owner BYD CO LTD
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