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Van de Graaff Generator01:15

Van de Graaff Generator

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Van de Graaff generators (or Van de Graaffs) are devices used to demonstrate high voltage due to static electricity that can also be used for research. Robert Van de Graaff first built one in 1931 (based on original suggestions by Lord Kelvin) for use in nuclear physics research.
Van de Graaff uses both smooth and pointed surfaces, conductors, and insulators to generate large static charges and, hence, large voltages. A substantial excess charge can be deposited on the sphere because it moves...
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鱼尺度用于可穿戴,自动供电的TENG.

Liwei Zhao1, Jin Han1, Xing Zhang1

  • 1Laboratory of Dielectric Functional Materials, School of Materials Science & Engineering, Anhui University, Hefei 230601, China.

Nanomaterials (Basel, Switzerland)
|March 12, 2024
PubMed
概括

研究人员使用鱼开发了一种灵活的,自动供电的纳米发电机. 这种可穿戴设备从运动中产生电力,显示出对健康监测的希望.

科学领域:

  • 材料科学 材料科学 材料科学
  • 生物医学工程 生物医学工程
  • 纳米技术纳米技术

背景情况:

  • 灵活和可穿戴设备正在获得各种应用的显著兴趣.
  • 自动供电系统对于可穿戴电子产品的可持续和长期运行至关重要.
  • 三电纳米发电机 (TENGs) 为收集机械能提供了一个有前途的方法.

研究的目的:

  • 开发一种使用鱼的新型自动供电 triboelectric 纳米发电机 (TENG).
  • 为了研究施加压力和鱼尺TENG的输出性能之间的关系.
  • 评估鱼TENG在感知人类活动及其生物相容性的潜力.

主要方法:

  • 使用鱼作为活性 triboelectric 材料制造一个TENG.
  • 在不同压力负载下,TENG的电力输出 (电压和电流) 的表征.
  • 对鱼的结构性质进行分析,这些结构性质有助于产生 triboelectric 效应.
  • 测试TENG对不同的人类运动 (行走,敲击,曲) 的反应.

主要成果:

  • 鱼TENG显示出一个压力依赖的输出,随着施加的力增加.
  • 在50N压力下,达到7.4V的最大输出电压和0.18μA的短路电流.
关键词:
原蛋白是一种原蛋白.鱼的尺度是鱼的尺度.键是一种键.带电效应是一种 triboelectric 效应.triboelectric纳米发电机的使用情况

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  • 电压效应归因于鱼中的原纤维捆的状结构.
  • TENG有效地检测到各种人类活动,这表明它的灵敏度很高.

    • 结论:

    • 鱼作为一种有效和可持续的材料,用于制造自动供电的TENGs.
    • 开发的鱼TENG具有出色的灵活性,可穿戴性和生物相容性.
    • 这项技术在医疗保健和身体监测系统中具有很大的应用潜力.