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相关概念视频

Microcracking in Concrete01:20

Microcracking in Concrete

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Microcracking in concrete refers to the tiny cracks that can form within the material even before any external load is applied. These microcracks typically occur at the interface between the coarse aggregate and the hydrated cement paste, often as a result of differential volume changes prompted by variations in stress-strain behavior, as well as thermal and moisture movement. Initially, these microcracks remain stable and do not grow substantially until the concrete is stressed to about 30...
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Measurements of Strain01:27

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Strain quantifies the deformation of a material under force, typically measured as normal strain, which represents the change in length when compared with the original length. Electrical strain gauges are used for enhanced accuracy. These devices consist of a conductive wire mounted on a paper backing that adheres to the material's surface. These gauges operate on the piezoresistive effect, where the wire's electrical resistance changes in response to mechanical deformation. The strain...
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The utilization of strain gauges as transducers for converting mechanical strain into electrical signals is a common practice in various engineering applications. These strain gauges are frequently integrated into Wheatstone bridge circuits to accurately measure parameters such as force or pressure. Within this context, each element within the circuit exhibits a resistance that undergoes subtle variations when subjected to mechanical strain. The primary objective is to convert minuscule...
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Updated: Jul 24, 2025

Strain Sensing Based on Multiscale Composite Materials Reinforced with Graphene Nanoplatelets
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基于裂纹的传感器,具有微结构,用于应变和压力传感.

Nakung Kim1, Daegeun Yun1, Injoo Hwang1

  • 1Division of Mechanical Convergence Engineering, College of MICT Convergence Engineering, Silla University, Busan 46958, Republic of Korea.

Sensors (Basel, Switzerland)
|July 8, 2023
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概括
此摘要是机器生成的。

研究人员开发了一种高度敏感的薄膜裂纹传感器,灵感来自蜘蛛器官. 这种新型传感器可以同时测量拉力和压力,推进灵活的电子和可穿戴传感器技术.

关键词:
生物启发的生物灵感.基于裂纹的传感器微支柱阵列是一个微支柱阵列.应变和压力传感器.薄膜传感器的感应器

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科学领域:

  • 灵活的电子设备 灵活的电子设备
  • 传感器技术 传感器技术
  • 生物模拟设计的设计

背景情况:

  • 灵活的电子技术取得了重大进展,导致各种传感器应用.
  • 蜘蛛切割器官激发了使用金属薄膜裂的新型应变感应机制.
  • 现有的基于裂纹的传感器显示出高灵敏度,可重复性和耐用性.

研究的目的:

  • 开发一种使用微观结构的薄膜裂纹传感器.
  • 为了使在薄膜中同时测量拉力和压力.
  • 通过FEM模拟分析传感器的应变和压力特征.

主要方法:

  • 用微观结构制造薄膜裂纹传感器的制造.
  • 试验测量拉伸力和压力.
  • 用有限元法 (FEM) 模拟进行特征分析.

主要成果:

  • 开发的传感器成功地同时测量了拉力和压力.
  • 证实了高灵敏度,可重复性和耐久性.
  • FEM分析提供了有关传感器应变和压力特征的见解.

结论:

  • 拟议的薄膜裂纹传感器在柔性电子中提供了扩展的应用.
  • 这项技术对开发先进的可穿戴传感器充满希望.
  • 该研究为人工电子皮肤领域做出了贡献.