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Characterization of Sensitivity of Time Domain MEMS Accelerometer.
Enfu Li1, Jiaying Jian2, Fan Yang1
1School of Engineering, Huzhou University, Huzhou 313000, China.
Micromachines
|February 24, 2024
Summary
This study characterizes MEMS accelerometer sensitivity, finding that decreasing amplitude and frequency enhances performance. Adjustable sensitivity in time-domain sensors offers theoretical foundations for range self-adaptation in inertial sensors.
Area of Science:
- * Microelectromechanical Systems (MEMS) technology
- * Inertial sensing
- * Time-domain signal processing
Background:
- * MEMS accelerometers are crucial for motion detection.
- * Characterizing sensitivity is key for performance optimization.
- * Time-domain analysis offers unique insights into sensor behavior.
Purpose of the Study:
- * To characterize the sensitivity of a time-domain MEMS accelerometer.
- * To investigate the relationship between amplitude, frequency, and sensitivity.
- * To establish a foundation for range self-adaptation in inertial sensors.
Main Methods:
- * Experimental evaluation of a developed time-domain MEMS accelerometer.
- * Measurement of sensitivity defined as the increment in measured time interval per gravitational acceleration.
- * Analysis of sensitivity and noise across varying amplitudes.
Main Results:
- * Sensitivity ranges from -68.91 μs/g to -124.96 μs/g.
- * Decreasing amplitude and frequency enhances sensitivity.
- * Larger amplitude results in smaller sensitivity and increased noise.
Conclusions:
- * Adjustable sensitivity in time-domain MEMS accelerometers is demonstrated.
- * Findings provide a theoretical basis for range self-adaptation.
- * Results are applicable to other time-domain inertial sensors like gyroscopes and inclinometers.
