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5 photos · click to enlarge技術仕様
Specifications are for preliminary project review only. Final parameters, materials, certificates, and acceptance criteria should be confirmed in the signed contract or approved technical proposal.
用途
- Loudspeaker & transducer measurement
- Microphone calibration (IEC 61094)
- Headphone & hearing aid testing
- Automotive NVH component testing
- Consumer electronics certification
- Acoustic research & development
概要
A fully anechoic chamber eliminates all acoustic reflections through wedge-shaped absorbers installed on all six surfaces — walls, ceiling, and floor. The result is a free-field environment where sound propagates outward without boundaries, replicating an infinitely large outdoor space within a controlled laboratory setting.
HEMU Acoustics fully anechoic chambers are designed to achieve free-field conditions above the specified cut-off frequency (typically 80–100 Hz), with NRC values of 0.99 or higher. Our modular construction system enables chambers ranging from compact 5 m³ units for microphone calibration to large-scale 500+ m³ facilities for automotive component testing.
All chambers include an internal suspended wire floor grid for safe access, double-leaf wall construction for structural isolation, and an electromagnetic shielding option for EMC-sensitive applications.
Common applications include loudspeaker directivity measurements, headphone and microphone calibration, hearing aid testing, automotive component NVH characterization, and certification testing to IEC 60268-5, ISO 26101, and related standards.
主な特徴
Superior Free-Field Accuracy
Designed to meet or exceed the free-field deviation criterion of ±1.5 dB across the working area, ensuring measurement repeatability.
Modular Construction
Factory-prefabricated panels for fast on-site assembly. Standard modular units ship in 6–8 weeks; custom projects in 12–16 weeks.
Structural Vibration Isolation
Inner shell isolated from outer shell via spring mounts, achieving >40 dB insertion loss against floor-borne vibration.
Access & Safety
Suspended wire mesh floor grid rated to 250 kg/m². Emergency lighting, ventilation, and intercom included as standard.
Custom Absorber Design
Wedge geometry optimized via FEM simulation for your target cut-off frequency. Fiberglass, melamine foam, or hybrid wedge options.
Compliance Documentation
Full acoustic acceptance test report provided. Data includes insertion loss, background noise level, and free-field qualification map.
SEMrush に基づく用途
用途事例： 全無響室
実際のSEMrush USデータから3つのロングテール用途を選定し、キーワード、検索量、CPC、KD、意図のソースを保持しています。
Anechoic & Acoustic Test Chambers
Fully Anechoic Chamber Application Case for Fully Anechoic Chamber
SEMrush US (2026-06-14): "fully anechoic chamber" - volume 30/mo, $0.00 CPC, KD 0, intent N/A, source 20260614-fully-anechoic-chamber-us-exact.csv
事例を読む
Anechoic & Acoustic Test Chambers
Anechoic Chamber Price Application Case for Fully Anechoic Chamber
SEMrush US (2026-06-08): "anechoic chamber price" - volume 110/mo, $1.22 CPC, KD N/A, intent Transactional, source business/02-semrush-product-category-analysis.md
事例を読む
Anechoic & Acoustic Test Chambers
Anechoic Chamber For Sale Application Case for Fully Anechoic Chamber
SEMrush US (2026-06-08): "anechoic chamber for sale" - volume 40/mo, $1.54 CPC, KD N/A, intent Transactional, source business/02-semrush-product-category-analysis.md
事例を読むご要件について相談しますか？
Send equipment drawings, site photos, target noise level, and documentation requirements for review.