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相关概念视频

Capacitor With A Dielectric01:18

Capacitor With A Dielectric

Parallel plate capacitors consist of two conducting plates separated by a certain distance. However, it is mechanically difficult to hold the large plates parallel to each other without actual contact. Hence, a dielectric layer is commonly placed between the plates, which provides an easy solution for holding the plates together with a small gap and increases the capacitance of the capacitor.
Dielectrics are non-conducting materials with no free or loosely bound electrons. When a dielectric is...

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相关实验视频

Updated: Jun 28, 2026

Measurement of Dynamic Force Acted on Water Strider Leg Jumping Upward by the PVDF Film Sensor
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基于PVDF微纤维捆绑的高效制造的核心盖压电传感器

Jiulong Shi1, Fei Peng1, Tingting Shan1

  • 1School of Physics, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China.

Macromolecular rapid communications
|September 6, 2024
PubMed
概括

研究人员使用挤压成型开发了一种低成本,高性能压电纤维传感器. 这种灵活的传感器非常适合自动供电的可穿戴设备,可以监控运动和传输信号.

关键词:
在PVDF中,微纤维纤维捆绑.核心-皮压电传感器传感器挤出成型 挤出成型 挤出成型聚合物的结构加工加工.自动供电的传感器

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A Polymer-based Piezoelectric Vibration Energy Harvester with a 3D Meshed-Core Structure
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Mechano-Node-Pore Sensing: A Rapid, Label-Free Platform for Multi-Parameter Single-Cell Viscoelastic Measurements
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相关实验视频

Last Updated: Jun 28, 2026

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科学领域:

  • 材料科学 材料科学 材料科学
  • 纳米技术纳米技术
  • 可穿戴技术可穿戴技术

背景情况:

  • 压电纳米发电机 (PENG) 对于自动供电的可穿戴设备至关重要.
  • 与传统设备相比,压电纤维在重量和灵活性方面具有优势.
  • 高性能压电纤维的高效大规模制造仍然是一个挑战.

研究的目的:

  • 开发一种简单,大规模的方法来制造核心皮电压纤维传感器.
  • 为了研究这些传感器的性能,用于自动供电传感应用.
  • 为了展示这些传感器在可穿戴电子产品中的潜力.

主要方法:

  • 采用了挤压成型和浸出技术.
  • 一个核心盖结构是用钢丝核心 (电极) 和PVDF微纤维束盖 (零电层) 制造的.
  • 在压力和曲条件下评估了传感器的性能.

主要成果:

  • 制造的核心盖压电传感器显示出显著的输出电压 (12.3V在压力,0.32V在曲).
  • 传感器表现出对自动供电感应的敏感应激响应.
  • 成功展示了可穿戴信号传输和人类运动监控能力.

结论:

  • 建立了一种可扩展和高效的方法来生产基于微纤维的高性能PVDF压电纤维.
  • 这项工作为开发使用聚合物结构的自动供电传感器开辟了新的途径.
  • 开发的压电纤维传感器显示了未来可穿戴设备应用的巨大前景.