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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-speed high-resolution fiber diameter variation measurement system.

M M Fejer¹, G A Magel, R L Byer

¹Stanford University, Applied Physics Department, Ginzton Laboratory, Stanford, California 94305, USA.

|August 1, 1985

Summary

This study introduces a new system for accurately measuring transparent fiber diameter variations. The advanced system achieves high resolution and speed, crucial for material science applications.

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Area of Science:

Optical metrology
Materials science
Instrumentation engineering

Background:

Accurate measurement of fiber diameter is critical in various scientific and industrial fields.
Existing methods may lack the required resolution, speed, or working distance for certain applications, especially with transparent fibers.

Purpose of the Study:

To develop and validate a novel fiber diameter variation measurement system.
To achieve high resolution (0.02% diameter, 6-microm axial) and a high measurement rate (1 kHz).
To ensure a practical working distance (>100 mm) for versatile application.

Main Methods:

The system utilizes principles of optical measurement, detailed in the study.
Experimental validation was performed to confirm the system's performance.
Theoretical calculations were conducted to determine optimal resolution based on experimental parameters.

Main Results:

The developed system demonstrated a diameter resolution of 0.02%.
Axial resolution was measured at 6 micrometers.
The system operates at a measurement rate of 1 kHz with a working distance exceeding 100 mm.

Conclusions:

The described fiber diameter variation measurement system offers high precision and speed.
The system is suitable for measuring transparent fibers with excellent performance metrics.
The theoretical framework supports the experimental findings and guides future optimization.