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A New Type of Ultrasonic Gyroscopic Sensor Based on a Solid-State Standing-Wave Vibrator: Towards Shock-Resistant
Michail Shevelko1, Andrey Baranov1, Ekaterina Popkova1
1Department of Electroacoustics and Ultrasonic Technology, Saint Petersburg Electrotechnical University, 197022 St. Petersburg, Russia.
Sensors (Basel, Switzerland)
|May 13, 2026
Summary
A novel ultrasonic gyroscopic sensor utilizing a solid-state standing-wave vibrator offers shock resistance. Its design was validated through simulations and experiments, showing a promising signal output for angular velocity measurement.
Area of Science:
- Physics
- Mechanical Engineering
- Sensor Technology
Background:
- Traditional gyroscopic sensors often lack robustness against shock.
- Ultrasonic sensors offer potential for high sensitivity and miniaturization.
- Standing-wave vibrators present a novel approach for inertial sensing.
Purpose of the Study:
- To introduce and validate a new solid-state ultrasonic gyroscopic sensor.
- To investigate the sensor's performance under rotational conditions.
- To compare its signal output with existing technologies.
Main Methods:
- Development of a theoretical model for a layered standing-wave vibrator.
- Numerical simulation of the sensor's frequency response.
- Fabrication and experimental testing of a prototype sensing element.
- Laboratory analysis of the sensor's output under rotation.
Main Results:
- High correlation between simulated and experimental resonant frequencies confirmed model validity.
- A measurable shift in standing-wave amplitude proportional to angular velocity was observed.
- The standing-wave sensor demonstrated favorable output signal levels compared to traveling-wave sensors.
Conclusions:
- The developed solid-state standing-wave vibrator is a valid and promising ultrasonic gyroscopic sensor.
- The sensor exhibits potential for shock-resistant applications.
- Optimization strategies can further enhance its signal-to-noise ratio for practical use.
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