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相关概念视频

Strain and Elastic Modulus01:15

Strain and Elastic Modulus

The quantity that describes the deformation of a body under stress is known as strain. Strain is given as a fractional change in either length, volume, or geometry under tensile, volume (also known as bulk), or shear stress, respectively, and is a dimensionless quantity. The strain experienced by a body under tensile or compressive stress is called tensile or compressive strain, respectively. In contrast, the strain experienced under bulk stress and shear stress is known as volume and shear...

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封装式可伸缩的两式应变传感器

Shuang Wu1, Doyun Kim1, Xiaoqi Tang2

  • 1Department of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, NC 27695, USA. yzhu7@ncsu.edu.

Materials horizons
|August 6, 2024
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概括
此摘要是机器生成的。

这项研究引入了一种新的可伸缩传感器,用于水下和可植入的用途. 它在水生环境中表现出高灵敏度和耐用性,使得水下机器人技术和健康监测等应用成为可能.

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Author Spotlight: Microfluidic Channel-Based Soft Electrodes and Their Application in Capacitive Pressure Sensing
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科学领域:

  • 材料科学 材料科学 材料科学
  • 传感器技术 传感器技术
  • 生物医学工程 生物医学工程

背景情况:

  • 柔软和可拉伸的应变传感器对于健康监测,运动跟踪和机器人技术至关重要.
  • 两动物环境中对应变传感器的需求越来越大,包括植入式,可穿戴 (用于游泳者/潜水者) 和水下机器人应用.
  • 开发灵敏,可拉伸和强大的两式应变传感器仍然是一个重大挑战.

研究的目的:

  • 介绍一款新型封装拉伸式两式应变传感器.
  • 研究切割设计和界面相互作用对传感器性能的影响.
  • 为了证明传感器在各种两应用中的功能.

主要方法:

  • 使用嵌入在聚甲基素中的银纳米线制造可伸缩传感器,嵌入于热塑性聚氨的三明治.
  • 引入定期的尖切割,以控制裂的传播和导电通道.
  • 传感器性能的表征,包括测量因子,响应时间,强度和盐溶液中的稳定性.

主要成果:

  • 传感器实现了高测量系数 (高达289) 具有线性响应和快速响应时间 (53毫秒).
  • 经过16000个循环和20天的盐溶液中,表现出极好的抗压强度和稳定性.
  • 成功应用于追踪机器人鱼的运动,水下语言识别和猪主动脉血压监测.

结论:

  • 开发的封装拉伸式传感器满足两应用的需求.
  • 它的高性能和耐用性显示出对水下传感和手术植入器件的重大承诺.
  • 这项工作为在具有挑战性的水生和生物医学环境中进行先进传感铺平了道路.