可配置形状的基于MXene的热声学扬声器,具有可调的声音定向性
Jinyoung Kim1, Geonyoung Jung1, Seokhee Jung1
1School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan Metropolitan City, 44919, Republic of Korea.
Advanced materials (Deerfield Beach, Fla.)
|September 22, 2023
概括
研究人员使用MXene开发了超薄,可配置形状的热声学 (TA) 扬声器. 这些灵活的扬声器实现了高声压水平,并保持了各种配置的性能,从而实现了新的可穿戴电子应用.
科学领域:
- 材料科学 材料科学 材料科学
- 声学 声学 声学 声学
- 电气工程 电气工程
背景情况:
- 可穿戴电子产品需要形状可配置的扬声器,具有可调的声音导向性.
- 薄型热声学 (TA) 扬声器提供了一种无隔膜的替代品,但由于低声压水平 (SPL) 和不良的符合性,在任意塑造方面面临挑战.
- 现有的TA扬声器在机械变形和保持声音性能方面扎.
研究的目的:
- 开发超薄,形状可配置的基于MXene的TA扬声器,具有高SPL和稳定的性能.
- 为了研究材料性能 (热容量,热效能) 对TA扬声器性能的影响.
- 为了证明这些扬声器在各种配置和应用中的多功能性.
主要方法:
- 制造基于MXene的超薄TA扬声器,通过控制MXene每单位面积的热容量和基板的热效能.
- 声压水平 (SPL) 的表征和在机械应力下声音性能稳定性.
- 测试曲,扭曲,圆柱形和伸展kirigami配置的扬声器.
- 抛物线和球形大面积TA扬声器的建造.
主要成果:
- 在14天内实现了高SPL输出 (74.5kHz的15dB) 和稳定的声音性能.
- 在各种kirigami配置中使用烯基基底表现出独立于变形的声音生成.
- 成功创建了大面积 (20厘米×20厘米) 的抛物线和球形TA扬声器.
- 展示了声音聚焦和3D全向声音生成能力.
结论:
- 基于MXene的超薄TA扬声器克服了传统设计的局限性,提供高SPL和形状可配置性.
- 开发的扬声器适用于各种应用,包括声音聚焦和3D声音生成.
- 这些进步为下一代可穿戴电子设备和先进的声学设备铺平了道路.
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