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Continual mechanical vibration trajectory tracking based on electro-optical heterodyne interferometry.

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    This study introduces an electro-optical heterodyne interferometry system for dynamic vibration trajectory tracking. The novel method offers high efficiency, precision, and simplicity without needing target mirrors or moving parts.

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    Area of Science:

    • Optics and Photonics
    • Vibration Analysis
    • Measurement Science

    Background:

    • Vibration analysis presents significant challenges across diverse scientific and engineering fields.
    • Existing methods for tracking vibration trajectories can be complex and require specific experimental setups.

    Purpose of the Study:

    • To develop a novel electro-optical heterodyne interferometry system for dynamic vibration trajectory tracking.
    • To provide a comprehensive analysis of vibration using a new, simplified approach.

    Main Methods:

    • Utilized electro-optical heterodyne interferometry with temporal intensity analysis.
    • Introduced carrier frequency using an electrically controlled electro-optical frequency shifter.
    • Extracted instantaneous displacement via spectral analysis of light intensity evolution.

    Main Results:

    • Successfully tracked vibration trajectories dynamically.
    • Demonstrated high-efficiency, low-cost, jamproof, robust, precise, and simple system performance.
    • Validated through simulations and preliminary experiments.

    Conclusions:

    • The developed electro-optical heterodyne interferometry system effectively tracks vibration trajectories.
    • The system offers a practical and advanced solution for vibration analysis without requiring target mirrors or moving parts.