Acoustic test equipment-reverberation box

Abstract

The invention discloses an acoustic test equipment-reverberation box. The acoustic test equipment-reverberation box comprises an outer wall, an air layer, a fibre glass cotton, an inner wall, a rubber gasket, an I-shaped steel, diffusers, a sponge gasket, a clamping apparatus, clamping apparatus handles, screwed holes, bolts, universal wheels, a wiring hole and an auditory localization pin, wherein the box body is successively composed of the inner wall, the air layer, the fibre glass cotton and the inner wall from exterior to interior; the outer wall is connected with the inner wall through an elastic support composed of the I-shaped steel with the rubber gasket, the bottom of the outer wall is provided with four universal wheels, and the three adjacent surfaces of the inner wall are provided with the diffusers and the auditory localization pin; the wiring hole is arranged below the reverberation box, and a window position is provided with the sponge gasket and the clamping apparatus; and the outer wall and the clamping apparatus are provided with the screwed holes and are connected through the bolts, and the clamping apparatus is provided with two clamping apparatus handles. The acoustic test equipment-reverberation box provided by the invention has the advantages that the sound transmission loss of a box body is effectively improved, the operation is convenient, the measurement result is ensured to accord with the practical project, meanwhile, the test area of a material to be measured is greatly reduced, the cost is saved, and the efficiency is improved.

Description

technical field [0001] The invention relates to an acoustic testing device-a reverberation box, which is used for studying the sound insulation and sound absorption characteristics of materials in a reverberation space, and is especially suitable for small test pieces. Background technique [0002] With the improvement of living standards, people pay more and more attention to sound quality, which requires testing the acoustic characteristics of the test piece, but when measuring the sound insulation and sound absorption characteristics of the finished product, three problems are usually encountered, one The first is that the test piece cannot be cut and put into the standing wave tube for measurement, the second is that the construction cost of the reverberation chamber is too high, and the third is that the size of the test piece is too small to complete the acoustic test through the reverberation chamber. Contents of the invention [0003] The purpose of the present...

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Problems solved by technology

[0002] With the improvement of living standards, people pay more and more attention to sound quality, which requires testing the acoustic characteristics of the test piece, but when measuring the sound insulation and sound absorption characteristics of the finished product, three problems are usually encountered, one The reason is that the test piece cannot be cut and put into the standing wave tube for measurement, the second is that the construction cost of the reverberation chamber is too high, and the third is that the size of the test piece is too small to complete the acoustic test through the reverberation chamber

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