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Related Concept Videos

Measurement of Fluid Pressure01:16

Measurement of Fluid Pressure

458
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...
458

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A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
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Static Ice Pressure Measuring System Based on Fiber Loop Ring-Down Spectroscopy and FPGA.

Xiao Deng1,2, Dingrui Wang1, Lipeng Pan1

  • 1College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan 030024, China.

Sensors (Basel, Switzerland)
|October 23, 2020
PubMed
Summary

Researchers developed a novel optical fiber sensor system to monitor static ice pressure in cold regions. This system accurately measures pressure variations during ice growth and melting, crucial for protecting hydraulic structures.

Keywords:
FPGA pulse modulationcontinuous detectionfiber loop ring-down spectroscopystatic ice pressure

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Area of Science:

  • Civil Engineering
  • Materials Science
  • Optical Physics

Background:

  • Cold region hydraulic structures face threats from static ice pressure.
  • Understanding ice pressure dynamics during growth and melting is vital for structural design and protection.

Purpose of the Study:

  • To introduce and validate an optical fiber sensor system for real-time static ice pressure detection.
  • To assess the system's performance in monitoring ice pressure variations in PVC pipes.

Main Methods:

  • Utilized fiber loop ring-down spectroscopy and field-programmable gate array (FPGA) pulse modulation.
  • Developed an electro-optic modulation scheme with adjustable pulse width and period for in-situ observation.
  • Tested the system's temperature stability and repeatability.

Main Results:

  • The system successfully performed real-time detection of static ice pressure during ice growth and melting in PVC pipes.
  • Demonstrated favorable stability and sensitivity of the optical fiber sensor system.
  • Established a relationship between static ice pressure and temperature.

Conclusions:

  • The developed optical fiber sensor system is effective for monitoring static ice pressure in cold environments.
  • The findings provide valuable references for the design and protection of hydraulic structures in cold regions.
  • The system's performance indicates its potential for future field applications.