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相关概念视频

Pressure Gauges01:20

Pressure Gauges

Most pressure gauges, like those on scuba tanks, are calibrated to read zero at atmospheric pressure. Readings from such gauges are called the gauge pressure, which is the pressure relative to atmospheric pressure. When the pressure inside the tank exceeds atmospheric pressure, the gauge reports a positive value. Some gauges are designed to measure negative pressure. For example, many physics experiments must take place in a vacuum chamber, a rigid chamber from which some of the air is pumped...
Measurement of Fluid Pressure01:16

Measurement of Fluid Pressure

Fluid pressure is commonly measured using devices called manometers, which rely on liquid columns to indicate pressure differences. The height of a liquid column in a manometer reflects the pressure exerted by the fluid, providing a simple yet effective means of measurement. Different types of manometers serve specific purposes based on their configurations and the type of fluids involved.
A basic form of manometer is the piezometer, a vertical tube open at the top and filled with the same...

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相关实验视频

Updated: Jun 12, 2026

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
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基于使用聚合物光纤强度变化的高压传感器.

Abdul Ghaffar1, Fei Ru2, Jingming Liu2

  • 1Key Laboratory of Air-Driven Equipment Technology of Zhejiang Province, College of Mechanical Engineering, Quzhou University, 78 North Jiuhua Road, Quzhou, 32400, Zhejiang, China.

Scientific reports
|August 10, 2024
PubMed
概括

本研究介绍了一种低成本,简单的聚合物光纤 (POF) 传感器,用于高压测量高达4MPa. 新的扭曲螺旋设计增强了灵敏度和传感范围,为传统方法提供了稳定的替代方案.

关键词:
合方法 合方法高压传感器是一种高压传感器.基于强度的传感器聚合物光纤的光学纤维.

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相关实验视频

Last Updated: Jun 12, 2026

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科学领域:

  • 材料科学 材料科学 材料科学
  • 光学工程是指光学工程.
  • 传感器技术 传感器技术

背景情况:

  • 纤维传感器在高压下面临的局限性,包括机械故障和诱导的双断.
  • 现有的高压传感方法可能很复杂,可能需要破坏性制造工艺.

研究的目的:

  • 开发一种使用聚合物光纤 (POF) 的简单,低成本,稳定的高压传感器.
  • 为了研究一种基于强度变化和覆盖模式的新型传感器设计,挫败了总内部反射.

主要方法:

  • 采用了侧合机制,利用两个扭曲的POF进行光传输和测量.
  • 传感器通过监测压力诱导的覆盖模式导致的强度变化来操作,从而挫败了总内部反射.
  • 凝用于压力室内的密封,以测试高达4MPa的压力.

主要成果:

  • 传感器展示了检测MPa范围内的高压的能力,成功测试了高达4MPa的压力.
  • 分析了一个扭曲的螺旋结构,获得了大约432.21nW/MPa的灵敏度和50厘米的增强传感范围.
  • 传感器表现出高稳定性和易于制造,而不需要破坏性方法.

结论:

  • 拟议的POF传感器为高压传感应用提供了一个简单,低成本和稳定的解决方案.
  • 扭曲螺旋设计有效地提高了灵敏度和操作传感范围.
  • 这种传感器为传统的高压传感技术提供了可行的替代方案,克服了纤维的局限性.