期刊文献+

A versatile acoustically active surface based on piezoelectric microstructures 被引量:1

原文传递
导出
摘要 We demonstrate a versatile acoustically active surface consisting of an ensemble of piezoelectric microstructures that are capable of radiating and sensing acoustic waves.A freestanding microstructure array embossed in a single step on a flexible piezoelectric sheet of polyvinylidene fluoride(PVDF)leads to high-quality acoustic performance,which can be tuned by the design of the embossed microstructures.The high sensitivity and large bandwidth for sound generation demonstrated by this acoustically active surface outperform previously reported thin-flm loudspeakers using PVDF,PVDF copolymers,or voided charged polymers without microstructures.We further explore the directivity of this device and its use on a curved surface.In addition,high-fidelity sound perception is demonstrated by the surface,enabling its microphonic application for voice recording and speaker recognition.The versatility,high-quality acoustic performance,minimal form factor,and scalability of future production of this acoustically active surface can lead to broad industrial and commercial adoption for this technology.
出处 《Microsystems & Nanoengineering》 SCIE EI CSCD 2022年第3期51-60,共10页 微系统与纳米工程(英文)
基金 supported by the MIT-Ford liance agreement from January 2008(MIT 0224)and a gift funding from the Lendlease Group.
  • 相关文献

同被引文献2

引证文献1

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部