Core Features
■ Modular Structure
Walls and ceilings are
assembled from prefabricated sound-absorbing modules (e.g., fiberglass wedges,
foam wedges) for fast installation.
The frame is generally made of
lightweight metal such as aluminum alloy, balancing structural strength and
portability.
■ Flexibility &
Portability
Ideal for temporary
laboratories, outdoor testing or space-limited sites; the chamber can be
disassembled and reused multiple times.
Certain designs allow volume
expansion or reduction to fit various testing scales.
■ Acoustic Performance
The low-frequency cut-off
frequency (typically 80 Hz–200 Hz) is determined by the thickness and structure
of sound-absorbing materials.
Sound insulation performance
relies on outer sound barrier panels (steel sheets with damping layers) and
sealing design, with a typical sound insulation index ≥30 dB.
■ Auxiliary Supporting Systems
Optional accessories include
ventilation silencers, cable feedthroughs, lighting and other facilities to
facilitate testing operations.
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