# Pressure amplification and directional acoustic sensing based on a gradient metamaterial coupled with space-coiling structure

> Research article (Mechanical Systems and Signal Processing, 2022) · cited 41× · AI/ML

**Wikidata**: [openalex:W4284666047](https://www.wikidata.org/wiki/openalex:W4284666047)  
**Source**: https://4ort.xyz/entity/pressure-amplification-and-directional-acoustic-sensing-based-on-a-gradient-metamaterial-coupled-with-space-coiling-stru