The anechoic room is also called anechoic room, anechoic room, or
Anechoic chamber. Mainly used for measuring the sound absorption coefficient of sound absorbing materials and structures, measuring the noise level and power level of equipment and products, frequency response characteristics of electroacoustic components, acoustic frequency characteristic analysis and noise level of musical instruments or precision instruments. So how much does it cost to design and build an anechoic chamber? Today, Jinghuan Environmental Protection will talk about the budget required to build an anechoic chamber.
In practical engineering, the price of anechoic chambers is mainly determined by the following factors:
1. Local noise required to be achieved
2. Actual environmental noise, noise sources, and vibration sources
3. Actual required size
4. Is it a fully anechoic room or a semi anechoic room
5. Additional accessories to be selected
The design and quotation of an anechoic room mainly revolve around the above aspects. Background noise and external noise are interrelated, and the higher the difference between the required value of background noise and external noise, the more expensive the required price. There is no doubt about the size. The larger the size, the higher the cost. If a fully anechoic chamber is made, then all six sides need to be silenced, which increases the cost. Conversely, a semi anechoic chamber only has five or four sides to be silenced, so the cost is likely to be lower compared to a fully anechoic chamber. Finally, regarding the issue of accessory accessories, anechoic rooms are generally equipped with inlet/exhaust systems, air conditioning, visual observation windows, closed circuit monitoring, testing brackets, etc; The more accessory systems need to be installed, the corresponding cost will definitely increase. In addition, if you find a manufacturer to do it, labor costs, and distance issues will also affect the price.
So what is the actual price for building an anechoic chamber? Generally, a conventional anechoic chamber ranges from 200000 to 2 million rmb, with higher requirements. For example, it is normal for an NVH anechoic chamber in a car to cost tens of millions or even billions of rmb.
