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Congratulations on our fully anechoic box project for Beijing Didi Infinity Tech. passing acceptance.

DATE: 2025-01-07 11:01:34

Summary:
Beijing Didi Infinity Technology and Development Co., Ltd. was established on May 6, 2013. Its address is located on the 1st Floor, North Area, 5th Floor, Building 1, No. 9, Shangdi East Road, Haidian District, Beijing. DiDi Global Inc. (listed on the New York Stock Exchange with the stock code: DIDI) is a world-renowned mobile travel technology platform. It provides diversified travel services such as ride-hailing, taxi hailing, designated driver services, and carpooling in the Asia-Pacific, Latin America, Africa, Central Asia, and Russia, etc. It also operates vehicle services, food delivery, freight transportation, and financial businesses. Beijing Didi Infinity Technology and Development Co., Ltd. is committed to providing efficient, convenient, and advanced services and solutions for urban travel through mobile Internet technology innovation. By leveraging information technology and big data technology, it integrates various urban transportation resources and builds an information matchmaking platform between the supply and demand sides of travel.

They chose GZ DP Anechoic T&E Co., Ltd. to cooperate in building acoustic laboratories (soundproof chambers, anechoic chambers, silent rooms, reverberation chambers, semi-soundproof chambers, semi-anechoic chambers, fully soundproof chambers, fully anechoic chambers). This is because GZ DP Anechoic T&E Co., Ltd. consists 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 possess rich theoretical and practical experience. It owns its own office building and factory, and there is an acoustic laboratory that meets the CNAS standard in the factory, which can monitor the acoustic technical indicators of its own products and provide external acoustic testing services. Through the hard work 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, beautiful in appearance, and high in technological content.

The fully anechoic box 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 on-site actual measurement and acceptance brief introduction and other follow-up materials, 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 of our enterprise to get free push notifications. For detailed materials (soundproof chambers, anechoic chambers, silent rooms, reverberation chambers, semi-soundproof chambers, semi-anechoic chambers, fully soundproof chambers, fully anechoic chambers), please go to the download center on the official website of our corporation to get free downloads.


I. Procurement Content
(1) Fully anechoic box
II. Basis of Standards
(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
(1) The installation project construction plan and materials used for the fully anechoic box shall be designed and installed by Party B in full;
(2) The internal effective clear dimensions of the fully anechoic box installation project shall meet the agreed dimensions.
Main Terms for the Acceptance of the Fully Anechoic Box Product:
When the external environmental noise: Len (A) ≤ 60dB (A), and there is no abnormal interference around (such as ground pounding, piling, impact), the background noise: Lgn (A) ≤ 25dB (A);
Cut-off frequency: Fc ≤ 100HZ;
The indoor dimensions of the anechoic box are: 1600mm (L) * 1600mm (W) * 1600mm (H).
IV. Acceptance Measurement Data

On-site Acceptance Result: Background noise: Lgn (A) ≤ 14.6dB (A).

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V. Completion Photos

For more specific content, you are welcome to call for consultation or scan the QR code below to get more information about our company.