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Related Experiment Video

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Fabrication and Characterization of Superconducting Resonators

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Published on: May 21, 2016

Circular SAW Resonators: Influence of Sensitive Element Dimensions on Strength Characteristics and First Experimental

Sergey Yu Shevchenko¹, Denis A Mikhailenko¹, Alexander S Kukaev¹

¹Department of Laser Measuring and Navigation Systems, Faculty of Information Measurement and Biotechnical Systems, Saint Petersburg Electrotechnical University (LETI), Popova Str., h. 5, 197376 Saint Petersburg, Russia.

Sensors (Basel, Switzerland)

|July 27, 2024

Summary

This study explores micromechanical accelerometers using surface acoustic wave ring resonators. Results show potential for automotive g-sensor applications requiring high overload measurement.

Keywords:

interdigital transducer microelectromechanical systems micromechanical accelerometer resonator sensitive element surface acoustic waves

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Area of Science:

Materials Science
Mechanical Engineering
Electrical Engineering

Background:

Previous research analyzed surface acoustic wave (SAW) ring resonators, focusing on materials, housing, external variables, and interdigital transducer (IDT) configuration for bandwidth reduction.
Studies investigated frequency characteristics and performance limitations of SAW devices.

Purpose of the Study:

To investigate the relationship between sensitivity and maximum measurable acceleration in relation to the dimensions of SAW ring resonator sensitive elements.
To evaluate experimental sample attributes for validating simulation results.

Main Methods:

Simulations and experimental fabrication of micromechanical accelerometers based on SAW ring resonators.
Analysis of the correlation between device dimensions, sensitivity, and maximum measurable acceleration.
Characterization of fabricated devices to verify simulation predictions.

Main Results:

Established a correlation between the dimensions of sensitive elements and the device's sensitivity and maximum measurable acceleration.
Experimental results validated simulation predictions for the developed micromechanical accelerometer.
Demonstrated the feasibility of creating micromechanical accelerometers with specific performance characteristics.

Conclusions:

The developed micromechanical accelerometer shows potential for automotive applications, particularly as a g-sensor for shock detection.
The findings are applicable to industries requiring precise measurement of high acceleration overloads.
This research contributes to the advancement of SAW-based sensing technologies for high-g applications.