Comprehensive test instrument for performance of accoustic material

A comprehensive tester and acoustic material technology, applied in scientific instruments, analytical materials, material analysis using sonic/ultrasonic/infrasonic waves, etc., can solve the problems of low test efficiency, complex data processing process, accuracy dependence, etc., to improve the market. Competitiveness and enterprise benefits, broad application prospects, and the effect of fast debugging

CN1873406AActive Publication Date: 2006-12-06王岩松
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2006-12-06

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Abstract

The invention relates to acoustical material performance synthesis tester. It includes computer, double-microphone standing wave tube, four-microphone standing wave tube, and four-microphone sets. The double-microphone standing wave tube is made up of front and back standing wave tubes, loudspeaker, two microphone clams, piston rod lid support, piston rod, piston, and handle nut. The four-microphone standing wave tube is made up of front and back standing wave tubes, front and back end cover, loudspeaker, and microphone clam. The audio frequency output of the computer is connected with the loudspeaker. And the four-microphone sets are respectively connected with the signal input of the computer.
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Description

technical field

[0001] The invention particularly relates to an acoustic material performance comprehensive tester. Background technique

[0002] With the development of society, the problem of noise pollution has become more and more prominent. In order to protect the environment and strengthen the control of noise pollution, acoustic materials have been widely used. According to their characteristics, these acoustic materials can be roughly divided into: sound-absorbing materials, sound-insulating materials and vibration-isolating materials. Vibration-isolating materials achieve sound insulation by reducing vibration. The most common acoustic materials are glass wool, foam, felt, glass, and rubber. wait. Obviously, vigorously promoting and using high-performance acoustic materials is of great significance to improving the noise environment and improving the quality of human life, and the development and production of high-performance acoustic materials is firstly based on...

Examples

Embodiment Construction

[0016] Such as Figure 1 ~ Figure 4 As shown, the acoustic material performance comprehensive tester is composed of a computer 3 for processing collected data, a double-microphone standing wave tube 1 , a four-microphone standing wave tube 2 , and a four-microphone group 5 . Described double-microphone standing wave tube 1 is made up of the front standing wave tube 106 and the rear standing wave tube 104 connected by thread, the front end cover 109 installed on the front standing wave tube 106, and the front end cover 109 that is located at the front standing wave tube 106 front. Speaker 107 and BNC interface 108, front pad 110 and ring pad 111 placed between front end cover 109 and speaker 107, two microphone clamps 105 installed at the rear of front standing wave tube 106, mounted on rear standing wave tube The piston rod support cover 102 at the 106 rear end, the piston rod 116 passing through the piston rod support cover 102 and located in the rear pipe 104, the piston 114...