1、Patented Products: BCA & ASA

Through close collaboration between manufacturing and scientific research, we supply all products backed by solid theoretical research. References include:Paper published in Acta Acustica Sinica in 1997 by Professor Ma Dayou, the father of Chinese acoustics;Innovation in Anechoic Chamber Acoustic Technology, a paper authored by two professors from Fraunhofer Institute;Innovative Acoustic Materials, a monograph written by renowned acoustics professor H. Fuchs.

The acoustic laboratories delivered by Landtop Technology are equipped with Broadband Compact Absorbers (BCA) or Asymmetric Sound Absorbers (ASA), both mature products with years of stable mass production. This reactive absorber technology was co-developed by Landtop and IBP, and covered by multiple international patents issued in Europe and the United States (Patent Nos.: US5975238, US 6793037 B1, US 6073722, EP 0811097B1, DE10213107 A1, DE19861016 C2).

Compared with conventional outdated absorber structures, they deliver distinct advantages:

■ Reduced building footprint, cutting construction and air conditioning costs

■ Superior acoustic performance with a minimum cut-off frequency down to 25 Hz, solving long-standing low-frequency testing challenges in automotive and home appliance industries

■ All sound-absorbing materials imported from Germany, eco-friendly and non-toxic to human health

■ Significantly improved working environment

■ Metal protective panels finished with dry powder coating, achieving corrosion resistance conforming to ISO C4 grade standards

■ The acoustic assemblies guarantee no shedding, deformation or internal particle leakage within 20 years after project acceptance

Landtop Technology Acoustics Center 4WD Chassis Dynamometer Semi-Anechoic Chamber

2、 Acoustic Design

The chamber is personally designed by acoustic specialists with over 40 years of industry experience and reviewed and validated by Fraunhofer Institute for Building Physics (FHG·IBP). The finished acoustic laboratory complies with or exceeds ISO 3745 Class 1 precision standards, with third-party certification test reports available for verification.

3. Project Experience with Over a Hundred Laboratories Constructed

Landtop Technology has designed and built more than 90% of acoustic laboratories for the domestic automotive industry and other sectors, boasting extensive turnkey project experience.

Throughout all project phases including preparation, design coordination, procurement and construction execution, Landtop prioritizes customer needs, proactively mitigates foreseeable and unforeseen project risks to guarantee smooth project delivery, and takes full responsibility for the final acoustic performance.

Shanghai Tongpeng Tuning Semi-Anechoic Chamber

■ Automotive