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Robust high-dynamic-range optical roll sensing.

Steven R Gillmer, Xiangzhi Yu, Chen Wang

    Optics Letters
    |June 2, 2015
    PubMed
    Summary
    This summary is machine-generated.

    We developed a novel optical roll sensor using a square wave-encoded light source. This sensor offers high dynamic range and throughput, overcoming limitations of current roll sensing technologies.

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    Area of Science:

    • Optics and Photonics
    • Sensor Technology
    • Instrumentation

    Background:

    • Accurate roll sensing is crucial in various applications, including navigation and industrial automation.
    • Existing optical roll sensors often face limitations in dynamic range, throughput, or susceptibility to noise.
    • There is a need for robust, high-performance roll sensing solutions.

    Purpose of the Study:

    • To introduce a novel optical roll sensor with enhanced dynamic range and high-throughput capabilities.
    • To detail the working principle based on tracking the amplitude of a square wave-encoded light source.
    • To experimentally validate the sensor's performance characteristics.

    Main Methods:

    • Encoding a square wave onto a polarization reference.
    • Utilizing quadrature demodulation of polarized light to cancel common-mode noise.
    • Experimental validation of the sensor's working range and resolution.

    Main Results:

    • Demonstrated a 43° usable working range for optical roll sensing.
    • Achieved a high resolution of 0.002°.
    • The sensor exhibits insensitivity to source amplitude fluctuations and no inherent drift.
    • Reported the highest dynamic range for optical roll sensing to date.

    Conclusions:

    • The presented optical roll sensor offers a robust, simple, and low-cost solution.
    • Its high dynamic range and throughput make it suitable for demanding applications.
    • The sensor's design effectively cancels common-mode noise and eliminates drift, ensuring reliable measurements.