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相关概念视频

Energy Stored In A Coaxial Cable01:31

Energy Stored In A Coaxial Cable

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A coaxial cable consists of a central copper conductor used for transmitting signals, followed by an insulator shield, a metallic braided mesh that prevents signal interference, and a plastic layer that encases the entire assembly.
In the simplest form, a coaxial cable can be represented by two long hollow concentric cylinders in which the current flows in opposite directions. The magnetic field inside and outside the coaxial cable is determined by using Ampère's law. The magnetic field...
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Cable Subjected to a Distributed Load01:24

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The analysis of suspension bridges is a complex and critical process that involves multiple factors, including the shape and tension of the main cables. The main cables of suspension bridges are subjected to distributed loads, which result in changes in tensile forces and deformation of the cable. These loads must be carefully considered to ensure that the bridge is safe and capable of supporting the weight of different loads.
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相关实验视频

Updated: May 6, 2026

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
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可伸缩的分布式光纤传感器

Hedan Bai1, Shuo Li2, Jose Barreiros3

  • 1Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY 14853, USA.

Science (New York, N.Y.)
|November 13, 2020
PubMed
概括
此摘要是机器生成的。

我们开发了一种新的可伸缩分布式光纤传感器 (DFOS), 这种创新型传感器可以准确地检测变形的位置,大小和类型.

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A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings
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A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings

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相关实验视频

Last Updated: May 6, 2026

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科学领域:

  • 材料科学
  • 机器人技术
  • 传感器技术

背景情况:

  • 基于的分布式光纤传感器 (DFOS) 擅长在刚性结构中感知应变,压力和温度.
  • 现有的DFOS不适合软机器人和可伸缩电子产品,因为它们具有很大的压力限制.

研究的目的:

  • 开发一种可伸缩的DFOS,能够承受较大的变形.
  • 在软系统中实现实时,多模式和多位置的机械变形传感.

主要方法:

  • 使用具有色彩图案的平行弹性体光导体制造可伸缩的DFOS.
  • 使用丧的内部反射和吸收来感知.
  • 集成到无线手套中来展示复杂的动作捕捉.

主要成果:

  • 可伸缩的DFOS成功地区分和量化了变形的位置,大小和模式 (拉伸,曲,压力).
  • 使用单个传感器证明了多位置和多模式变形脱.
  • 集成的手套准确地捕捉了手指的关节运动和外部压力.

结论:

  • 开发的基于弹性光导的DFOS克服了基于的传感器在软和可伸缩应用中的局限性.
  • 这项技术为先进的人机接口和软机器人控制提供了有前途的解决方案.
  • 通过单个可伸缩的传感器可以实现多种变形类型的实时同时检测.