Anechoic chamber is a room that has been designed in a manner that it has no reverberation and hence no echo. Any sound emitted in the anechoic chamber is totally absorbed by the panels. The Anechoic chamber is a special place with walls, ceiling and flooring that absorb any kind sound and electromagnetic waves. The chamber is totally insulated not allowing the penetration of noise from any external sources. The reverberation time is very low for various audio frequencies in the Anechoic Chamber.
Design of Anechoic Chamber
The anechoic chamber is usually constructed of cement and bricks. The interiors of the anechoic chamber have been designed to provide total sound insulation. The internal surfaces are has PU wedges foam lining which provides the highest degree of sound absorption.The floor of the anechoic chamber is lined with floor wedges for acoustic absorption.
Sound absorption parameters of Anechoic Chamber
In the Anechoic Chamber the effectiveness of sound and electromagnetic waves absorption is measured in decibel rejection. This is the ratio of direct sound to reflected sound, inside the anechoic chamber. The Envirotech Anechoic Chamber offers a 80 dB rejection from 20 KHz to 80 Hz.
Industrial Application of Anechoic Chamber
The Anechoic chamber is ultra-silent. It is used in areas that require high precision sound measurement which helps to augment performance and design of the equipment. Anechoic chambers are especially useful for electronic devices related to sound like speakers, microphones, cell phones and other such devices.