Chongqing Hongxi Technology Co., Ltd. was founded in August 2010. The main business of this company is to engage in the design, research and development, production and sales of electronic components, high-precision electronic wire assemblies and miniature electroacoustic devices. The products of the company mainly cover ultra-fine coaxial cable assemblies, ultra-fine Teflon wire assemblies, other high-precision electronic wire assemblies, micro speakers and soft material laminating, etc. These products are mainly applied in the consumer electronics field which is dominated by notebook computers.
Guangzhou Danpin Artificial Environment Technology Co., Ltd. is formed by a group of acoustic experts and professional engineers who have been involved in various acoustic technology researches at home and abroad for many years and possess rich theoretical and practical experience. It has its own office building and factory. There is an acoustic laboratory that complies with CNAS standards in the factory. This laboratory can monitor the acoustic technical indicators of the products of the company and provide external acoustic testing services. Through the arduous efforts and continuous innovation and development of the Danpin team, the acoustic laboratories designed, produced and installed by it have products with accurate technical indicators, being environmentally friendly, durable in quality, having a nice appearance and high in technological content.
The anechoic chamber is not only a special laboratory for acoustic testing but also a key component of the testing system. In fact, it is also one of the acoustic testing equipment. The acoustic performance indicators of it directly influence the testing accuracy.For specific acoustic design, manufacturing, construction, installation and brief introduction of on-site actual measurement and acceptance and other follow-up materials, please pay attention to browsing the project cases on the official website of our company, or scan the QR code of the WeChat public service account of our company to get free push notifications.For detailed materials, please go to the download center on the official website of our company to download them for free.
Keywords: anechoic chamber, soundproof chamber, semi-anechoic chamber, fully anechoic chamber, acoustic laboratory, completely free-field room, free-field room, semi-free-field room.
I. Purchasing Content
Fully anechoic chamber
II. Basis of Standards
(1) GB/T 6882 "Acoustics - Determination of Sound Power Level of Noise Sources - Precision Methods for Anechoic Chambers and Fully Anechoic Chambers"
(2) ISO 3745 "Acoustics - Determination of Sound Power Level of Noise Sources - Precision Methods for Anechoic Chambers and Fully Anechoic Chambers"
III. Main Indicators and Project Contents
1. The background noise Lgn(A) in the fully anechoic chamber shall be ≤ 18 dB(A).
2. Cut-off frequency: Fc ≤ 80 Hz.
(Diagram of the fully anechoic chamber)
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