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.
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Contact Us
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Moritani Shokai
(Machinery Department No. 2, Tokyo Head Office)
Introduction of the Manufacturer
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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
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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
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