激光诱导的类似皮肤的灵活压力传感器用于人工智能语音识别
Yunfan Li1, Xiao Lei1, Dingyi Guo1
1School of Power and Mechanical Engineering, Wuhan University, Wuhan, Hubei 430072, China.
ACS applied materials & interfaces
|February 15, 2024
概括
一种新的激光诱导工艺以高效和负担得起的方式创建类似皮肤的柔性压力传感器. 这些传感器提供超高灵敏度和快速响应时间,显示健康监测和智能可穿戴电子产品的前景.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 传感器技术 传感器技术
背景情况:
- 皮肤样柔性压力传感器的开发受到复杂,昂贵和低效的制备方法的阻碍.
- 现有的传感器往往缺乏实际应用所需的灵敏度,响应时间或稳定性.
研究的目的:
- 提出一种简单,低成本,高效的激光诱导成型工艺,用于制备类似皮肤的柔性压缩型传感器.
- 研究开发的传感器的传感性能和潜在应用.
主要方法:
- 使用红外激光照射在葡萄糖/石墨烯/多甲基 (PDMS) 预聚合物薄膜上.
- 利用石墨烯的光热效应和葡萄糖的泡效应,形成一个多孔的,类似皮肤的PDMS膜,表面突出.
- 使用已制成的皮肤状PDMS薄膜与集成的石墨烯导电层制造的灵活的压电阻传感器.
主要成果:
- 在0-2kPa范围内实现超高灵敏度 (1348kPa-1),广泛的操作范围 (200kPa),快速的响应/恢复时间 (52ms/35ms).
- 在5000个周期中表现出极好的稳定性.
- 成功应用了用于人类脉冲检测和机器人紧力测量的传感器.
- 当与卷积神经网络 (CNN) 算法相结合时,语音识别达到95%的准确性.
结论:
- 激光诱导成型过程为生产先进的灵活传感器提供了一种高效和可扩展的方法.
- 开发的类似皮肤的柔性压力复杂传感器表现出卓越的性能,表明健康监测,软机器人和智能可穿戴电子产品的巨大潜力.
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