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Related Experiment Video

Updated: Jun 10, 2026

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

Liquid-level sensor with optical fibers.

K Iwamoto, I Kamata

    Applied Optics
    |August 19, 2010
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces a novel three-optical-fiber liquid-level sensor. It accurately measures oil levels by compensating for light intensity variations, ensuring reliable distance readings up to 100 mm.

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    Area of Science:

    • Optoelectronics
    • Sensor Technology
    • Instrumentation

    Background:

    • Accurate liquid-level sensing is crucial in various industrial applications.
    • Traditional sensors can be affected by environmental factors like temperature and light intensity fluctuations.
    • Existing methods may lack robustness or require complex calibration.

    Purpose of the Study:

    • To develop and describe a novel liquid-level sensor utilizing optical fiber technology.
    • To enhance measurement accuracy by mitigating variations in light intensity.
    • To provide a reliable sensing solution for distances up to 100 mm.

    Main Methods:

    • A sensor design employing three optical fibers: one transmitting, one receiving, and one reference.
    • Light projection onto the liquid surface via the transmitting fiber.

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    A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
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    Published on: January 7, 2019

    Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
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  • Detection of reflected light by the receiving fiber.
  • Utilizing a reference fiber and signal division to compensate for intensity variations.

    • Main Results:

    • Successful implementation of a liquid-level sensor with a 100 mm measurement range.
    • Demonstrated ability to eliminate apparent distance variations caused by light intensity fluctuations.
    • The sensor shows resilience to external forces and temperature changes.

    Conclusions:

    • The proposed three-optical-fiber sensor offers a robust and accurate method for liquid-level measurement.
    • Signal division using reflected and reference signals effectively compensates for environmental interferences.
    • This technology presents a promising advancement in non-contact liquid sensing.