Technical Column
New Sound-Absorbing Wedge “BFW”
May 26, 2025
- HBK × SONORA Acoustic Measurement Solution Official Website
- Technical Column
- New Sound-Absorbing Wedge “BFW”
Acoustic Power Measurement
New Sound-Absorbing Wedge “BFW” for Anechoic Chambers (Non-Combustible Material)
The BFW is an original sound-absorbing wedge developed by Sonora Technology, combining high-density sound-absorbing material with Tyvek®.
Compared to traditional glass wool wedges, BFW offers a variety of advantages:
- High water repellency
- Excellent durability (tensile strength and scratch resistance)
- Superior aesthetic quality
- High whiteness
- Outstanding sound absorption performance
- No fiber dispersion
At Sonora Technology, BFW wedges are used as the interior sound-absorbing material for modular-type anechoic chambers.
Latest Posts in Technical Column
-
2025.10.20
End-of-Line Acoustic Testing — Quantifying Quietness in Mass Production — -
2025.10.14
Designing the Future of Silence — The Fusion of Digital Acoustic Measurement and Spatial Engineering — -
2025.09.15
Automated Acoustic Testing for Wireless Communication Modules — AEB × HBK System for Bluetooth Mics, Headsets, and Voice Devices — -
2025.09.10
Efficient Acoustic Testing for Compact Electric Devices — EAAC × HBK Analysis Enables Fast, Reliable Mass Production Checks — -
2025.09.05
Mapping the Directionality of Acoustic Devices — Directivity Measurement with HBK Microphones, Turntable, and AEB — -
2025.08.31
Visualizing Noise with Acoustic Cameras — How Measurement Environments Affect Beamforming Accuracy — -
2025.08.26
Why Measurement Rooms and Measurement Instruments Must Be Designed Together — Managing Environmental Noise and Instrument Precision as a Unified System — -
2025.08.21
Automated Sound Pressure Scanning for ISO 26101 Validation — Free-Field Compliance Using HBK + Traversing System in Sonora Anechoic Chambers — -
2025.08.16
Non-Invasive Acoustic Testing for Sealed Devices — Inspecting Internal Sounds from Outside with AEB × HBK Sensors — -
2025.08.11
Acoustic BOX Integration with HBK PULSE — Quiet Test Environments for Fully Automated Acoustic Inspection —
Contact Us
- Contact us by email
-
- Contact us by phone
-
Moritani Shokai
(Machinery Department No. 2, Tokyo Head Office)
Introduction of the Manufacturer
-
Hottinger Bruel & Kjaer
HHBK is a merger of two companies: Brüel & Kjær of Denmark and HBM of Germany.
Brüel & Kjær is one of the world’s leading manufacturers of acoustic and vibration measurement instruments, known as a total measurement chain supplier.Learn more about HBK
-
Sonora Technology Co., Ltd.
Sonora Technology is a leading Japanese manufacturer of industrial anechoic chambers and anechoic boxes.
From design and manufacturing to installation and acoustic performance assurance, Sonora provides fully integrated solutions to build complete acoustic measurement environments from the ground up.Learn more about Sonora
Contact / Request Brochure
For inquiries or consultations regarding the total solutions provided by HBK × Sonora, please feel free to contact us using the Contact button.
If you would like a brochure sent by mail, please use the Request Brochure button.