A method and a metamaterial for collecting sound waves
Patent Information
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- METADYNA MÜHENDISLIK SANAYI & TICARET ANONIM SIRKETI
- Filing Date
- 2024-06-25
- Publication Date
- 2026-05-13
AI Technical Summary
Traditional sound absorption materials are inefficient at low frequencies due to wavelength constraints, and metamaterials face challenges in operating across a wider band without complex structures that complicate mass production and reduce absorption at higher frequencies.
A method and metamaterial design that collects both normal and random sound waves by directing them to a common point within the metamaterial, utilizing a collector to achieve constructive or destructive interference, thereby enhancing absorption and filtering performance across a broader frequency range without increasing material thickness.
The solution significantly improves sound absorption at low frequencies while maintaining performance at high frequencies, achieving efficient sound wave collection and filtering with more compact metamaterial structures, as demonstrated by experimental sound absorption coefficients showing 80-90% absorption in the 200Hz-1000Hz range.
Smart Images
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