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Related Experiment Video

Updated: Jun 12, 2026

A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings
08:23

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

Published on: September 30, 2019

Fiber optic linear displacement sensor based on a variable period diffraction grating.

W B Spillman, D R Patriquin, D H Crowne

    Applied Optics
    |June 18, 2010
    PubMed
    Summary
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    A novel fiber optic sensor offers high accuracy for measuring displacement. This wavelength encoding sensor shows minimal sensitivity to temperature or light source fluctuations, ensuring reliable performance.

    Area of Science:

    • Photonics and Optical Sensing
    • Metrology

    Background:

    • Fiber optic sensors are crucial for precise measurements.
    • Environmental factors like temperature and optical source drift can impact sensor accuracy.
    • Wavelength encoding offers a potential method for enhanced sensor stability.

    Purpose of the Study:

    • To develop and evaluate a high-accuracy wavelength encoding fiber optic sensor.
    • To assess the sensor's sensitivity to temperature and optical source drift.
    • To quantify the measurement error over a defined displacement range.

    Main Methods:

    • Implementation of a wavelength encoding technique in a fiber optic sensor.
    • Testing the sensor's response under varying temperature conditions.
    • Monitoring sensor output stability with fluctuating optical source characteristics.

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    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

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    Last Updated: Jun 12, 2026

    A Random-displacement Measurement by Combining a Magnetic Scale and Two Fiber Bragg Gratings
    08:23

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

    Published on: September 30, 2019

    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

  • Conducting displacement measurements across a 10 mm range.

    • Main Results:

    • The developed fiber optic sensor demonstrated high measurement accuracy.
    • The sensor exhibited minimal sensitivity to environmental temperature changes.
    • Optical source drift had a negligible impact on the sensor's performance.
    • An average measurement error of 0.1% of full scale was achieved.

    Conclusions:

    • Wavelength encoding fiber optic sensors provide a robust and accurate solution for displacement sensing.
    • The sensor's low sensitivity to temperature and source drift enhances its practical applicability.
    • This technology offers a reliable metrology tool for demanding applications.