久久亚洲色一区二区三区_免费人成视频在线观看_国产精品99久久久久久_久久亚洲色一区二区三区_人人妻人人澡人人爽欧美一区九九_一级级毛片一级在线

 
Products
Anechoic chamber
Products
Anechoic chamber

As per clients'r equirements, we design the stimulated free sound field laboratory. Every part of this chamber is installed with high efficiency sound absorbing structure. 99% sound can be absorbed within the scope of needed frequency, which makes reflected sound wave no more than the specified range. In addition, we apply sound isolation, vibration isolation to ensure that exterior noise and vibration are not able to affect in-room test. We ensure this chamber does not have sound refection and disturb, and meet requirements of free sound field.

Scan the QR code

Copyright 2017 Shanghai Fund Acoustics Engineering Co., Ltd 滬ICP備09025947號(hào)
Share to

滬公網(wǎng)安備 31011702000477號(hào)