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Related Experiment Video

Updated: May 23, 2026

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
09:48

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

Published on: November 7, 2016

Distributed flow sensing using optical hot -wire grid.

Tong Chen1, Qingqing Wang, Botao Zhang

  • 1Department of Electrical and Computer Engineering, University of Pittsburgh, 3700 O’Hara Street, Pittsburgh, Pennsylvania 15261, USA.

Optics Express
|April 20, 2012
PubMed
Summary
This summary is machine-generated.

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A novel optical flow sensor uses a self-heated optical fiber for distributed measurements. This technology accurately determines flow rate, position, and direction with millimeter resolution.

Area of Science:

  • Optoelectronics
  • Fluid Dynamics
  • Sensor Technology

Background:

  • Traditional flow sensors often lack distributed measurement capabilities or require complex installations.
  • Optical fiber sensing offers a promising alternative for robust and sensitive measurements in various environments.

Purpose of the Study:

  • To develop and demonstrate a distributed optical flow sensing grid using a single self-heated optical fiber.
  • To achieve simultaneous retrieval of flow rate, position, and direction with high spatial resolution.

Main Methods:

  • Utilizing an in-fiber Rayleigh backscattering interrogation technique.
  • Employing optical frequency domain reflectometry (OFDR) for millimeter-scale spatial resolution.
  • Implementing both electrical and optical on-fiber heating methods.

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Design, Instrumentation and Usage Protocols for Distributed In Situ Thermal Hot Spots Monitoring in Electric Coils using FBG Sensor Multiplexing
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Design, Instrumentation and Usage Protocols for Distributed In Situ Thermal Hot Spots Monitoring in Electric Coils using FBG Sensor Multiplexing

Published on: March 8, 2020

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
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A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

Published on: January 7, 2019

Related Experiment Videos

Last Updated: May 23, 2026

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
09:48

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

Published on: November 7, 2016

Design, Instrumentation and Usage Protocols for Distributed In Situ Thermal Hot Spots Monitoring in Electric Coils using FBG Sensor Multiplexing
10:52

Design, Instrumentation and Usage Protocols for Distributed In Situ Thermal Hot Spots Monitoring in Electric Coils using FBG Sensor Multiplexing

Published on: March 8, 2020

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
09:03

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

Published on: January 7, 2019

Main Results:

  • Successfully demonstrated a distributed flow sensing grid based on a single optical fiber.
  • Achieved simultaneous and accurate measurement of flow rate, position, and direction.
  • Validated the effectiveness of both electrical and optical heating approaches for different applications.

Conclusions:

  • The presented optical hot-wire flow sensor offers a versatile and high-resolution solution for distributed flow measurement.
  • The dual heating methods provide adaptability for diverse flow sensing scenarios.