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Updated: Jun 12, 2026

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

Published on: November 7, 2016

High pressure sensor based on intensity-variation using polymer optical fiber.

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

Summary

This summary is machine-generated.

This study introduces a low-cost, simple polymer optical fiber (POF) sensor for high-pressure measurement up to 4 MPa. The novel twisted helical design enhances sensitivity and sensing range, offering a stable alternative to conventional methods.

Keywords:

Coupling method High-pressure sensor Intensity-based sensor Polymer optical fiber

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Last Updated: Jun 12, 2026

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

Published on: November 7, 2016

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

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Published on: September 30, 2019

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

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

Published on: January 7, 2019

Area of Science:

Materials Science
Optical Engineering
Sensor Technology

Background:

Silica fiber sensors face limitations under high pressure, including mechanical failure and induced birefringence.
Existing high-pressure sensing methods can be complex and may require destructive fabrication processes.

Purpose of the Study:

To develop a simple, low-cost, and stable high-pressure sensor using polymer optical fiber (POF).
To investigate a novel sensor design based on intensity variation and cladding mode frustrated total internal reflection.

Main Methods:

A side-coupling mechanism was employed, utilizing two twisted POFs for light transmission and measurement.
The sensor operates by monitoring intensity variations caused by pressure-induced cladding mode frustrated total internal reflection.
Silicone gel was used for sealing within the pressure chamber to test pressures up to 4 MPa.

Main Results:

The sensor demonstrated the ability to detect high pressures in the MPa range, successfully tested up to 4 MPa.
A twisted helical structure was analyzed, achieving a sensitivity of approximately 432.21 nW/MPa and an enhanced sensing range of 50 cm.
The sensor exhibited high stability and ease of fabrication without requiring destructive methods.

Conclusions:

The proposed POF sensor offers a simple, low-cost, and stable solution for high-pressure sensing applications.
The twisted helical design effectively enhances both sensitivity and the operational sensing range.
This sensor provides a viable alternative to conventional high-pressure sensing technologies, overcoming limitations of silica fibers.