适用于恶劣环境的耐温度,宽范围灵活,坚固的压力传感器
Jiawei Lin1, Zhiwen Chen1, Qibin Zhuang1
1Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University, Xiamen 361101, China.
ACS applied materials & interfaces
|October 13, 2023
概括
这项研究介绍了一种强大的灵活压力传感器,旨在适应恶劣的环境. 它采用先进的材料设计和微观结构,以确保在高压和可变温度下可靠性.
科学领域:
- 材料科学 材料科学 材料科学
- 工程 工程师 工程师 工程师
- 纳米技术纳米技术
背景情况:
- 灵活的压力传感器对于新能源,航空航天和机器人领域的应用至关重要.
- 由于机械不匹配和不稳定性,现有的传感器在恶劣环境 (高压,变化温度) 中难以可靠.
研究的目的:
- 开发一个强大的灵活的压力感应器,提高可靠性和环境适应性.
- 为了克服当前传感器在苛刻条件下运行的局限性.
主要方法:
- 使用多壁碳纳米管 (MWCNTs),石墨 (GP) 和热塑性聚氨 (TPU) 实现接近零温度阻力系数 (TCR) 的复合体方案.
- 辐射梯度压力分割微结构以增加压力范围.
- 灵活的接口粘合过程,具有可自溶的过渡层.
主要成果:
- 优化的传感层在25-70°C之间实现了接近零的TCR.
- 辐射梯度微观结构将压力范围提高到2 MPa.
- 灵活的接口粘合导致了低信号波动 (0.6%) 和高接口强度 (1200 kPa).
结论:
- 拟议的复合方案显著提高了灵活压力传感器的强度和可靠性.
- 该传感器显示了在动力电池中监测生理信号和环境弹性方面的潜力.
- 这种设计为开发适用于恶劣环境的压力传感器提供了一种新方法.
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