Microwave darkroom/full anecho

Manual/pneumatic shielding box Instrument drawer type shieldi Shielding cabinet/room Speaker/soundproof room Microwave darkroom/full anecho Microwave test device Autoc test equi

Full anechoic room / mute room

Full anechoic room / mute room


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    Summary: anechoic chamber is not only a special laboratory for acoustic test, but also an important part of the test system. In fact, it is also one of the acoustic test equipment. Its acoustic performance index directly affects the accuracy of the test. The anechoic room is divided into full anechoic room and half anechoic room. The six surfaces of the room are all covered with sound-absorbing layer, which is called full anechoic room, generally referred to as anechoic room. Among the six surfaces of a room, only five or four surfaces are covered with a sound absorption layer, which is called a semi anechoic room. The main function of anechoic chamber is to provide a free sound field space or semi free sound field space for acoustic test. The sound absorption treatment is the key to ensure the sound field performance after the completion of the anechoic chamber. Most of them adopt the sound absorption structure with strong sound absorption capacity, such as the sound absorption wedge or plate type thin plate resonance sound absorption structure.


   The fully anechoic room can provide ideal free field environment and very low background noise for electroacoustic testing. It is suitable for testing the electroacoustic performance of speaker, microphone, earphone, speaker, tablet computer and other products. Our company can customize the anechoic room for customers to meet the needs of accurate testing.



Parameters of full anechoic chamber


典型性能参数典型测试参数
1.本底噪声10dB1.频率响应4.本底噪声
2.截止频率80Hz2.总谐波失真THD5.指向性

3.总谐波失真+噪声THD+N6.信噪比


Standard for full anechoic room


ISO 3745-2012(acoustics-determination of sound power levels and sound energy levels of noise sources using sound pressure-precision methods for anechoic rooms and hemi-anechoic rooms

GB6882W008《声学声压法测定噪声源声功率级消声室和半消声室精密法》

全消声消音室外观图


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