Summary: Foshan Shunde District Hengshunjie Electronic Co., Ltd. was established in 2003. It is a comprehensive enterprise specialized in the production of DC cooling fans, electronic radiators, induction cooker coil pans, injection molded parts, hardware accessories, and mold production and processing. It currently has a modern production plant covering an area of more than 20,000 square meters, employs over 700 staff members, and its annual output value exceeded 200 million yuan in 2017.
The semi-anechoic chamber is not only a special laboratory for acoustic testing but also an important part of the testing system. In fact, it is also one of the acoustic testing equipment, and its acoustic performance indicators directly affect the testing accuracy. For follow-up materials such as brief introductions to specific acoustic design, manufacturing, construction, installation and on-site actual measurement and acceptance, please pay attention to browsing the project cases on the official website of our firm or scan the QR code of the WeChat public service account belonging to our firm to get free push notifications. For detailed materials, please go to the download center on the official website of our firm to download them for free.
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I. Procurement Content
Semi-anechoic chamber
II. Standards Followed
(1) GB/T 6882 "Acoustics - Determination of Sound Power Level of Noise Sources - Precision Methods for Anechoic Rooms and Fully Anechoic Rooms";
(2) ISO 3745 "Acoustics - Determination of Sound Power Level of Noise Sources - Precision Methods for Anechoic Rooms and Fully Anechoic Rooms".
III. Main Indicators and Project Contents (Effective Space and Background Noise, etc.)
1. The size and precision of the semi-anechoic chamber after construction meet the requirements of the contract agreed upon by both parties.
2. When the external environment is under normal operation and there is no interference from abnormal low-frequency noise sources in the surrounding environment, the indoor background noise of the semi-anechoic chamber is Lgn(A) ≤ 16dB(A).
