Summary:
Xiamen Hongfa Electric Power Apparatus Co., Ltd. was established on January 3, 2001, with a registered capital of 40,500. Its address is located at No. 560 - 564, Donglin Road, Jimei District, the beautiful city of Xiamen. Its business scope includes researching, manufacturing and selling electric power and electrical products and electronic components; wholesaling and retailing electric power and electrical products, electrical accessories and the enterprise produces; ticket agency; engaging in the export business of the products self-produced by the enterprise and the import business of the mechanical equipment, spare parts, raw and auxiliary materials needed by it (without attaching a separate list of import and export commodities).
They chose to cooperate with GZ DP Anechoic T&E Co., Ltd. to build acoustic laboratories (anechoic chambers, semi-anechoic chambers, fully anechoic chambers, semi-anechoic laboratories, fully anechoic laboratories, soundproof chambers, semi-soundproof chambers, fully soundproof chambers, semi-soundproof laboratories, fully soundproof laboratories, anechoic rooms, semi-anechoic rooms, fully anechoic rooms, acoustic laboratories, noise rooms, soundproof rooms, silent rooms, reverberation rooms, audition rooms, NVH laboratories, soundproof rooms, sound-insulated rooms, silent rooms, airborne sound insulation rooms, impact sound insulation rooms). This is because Guangzhou Danpin Artificial Environment Technology Co., Ltd. is composed of a team of acoustic experts and professional engineers who have been engaged in various acoustic technology researches at home and abroad for many years and have rich theoretical and practical experience. It owns its own office buildings and factories, and there is an acoustic laboratory built in the factory that complies with the CNAS standards, which can monitor the acoustic technical indicators of its own products and provide external acoustic testing services. Through the hard work, 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, good-looking in appearance and high in technological content.
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 specific acoustic design, manufacturing, construction, installation and brief introduction to 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.
      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";
(3) GB/T 4214.1 "Test Method for Noise of Household and Similar Electrical Appliances".
      III. Main Indicators and Project Contents
Effective Space of the Semi-anechoic Chamber
The net indoor dimensions after the construction of the semi-anechoic chamber are: length (L) × width (W) × height (H) = 5400mm × 5400mm × 3000mm (±100mm).
The acoustic technical indicators of the semi-anechoic chamber calibrated by a third-party calibration institution meet the requirements of the contract agreement between both parties.

IV. Final Actual Measurement

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