Top-Down Design Method of a Time Domain Accelerometer with Adjustable Resolution.

Area of Science:

• * Physics and Engineering
• * Microelectromechanical Systems (MEMS)

Background:

• * Traditional inertial sensors often face limitations in resolution and tunability.
• * Time domain sensing offers a promising alternative for enhanced performance.

Purpose of the Study:

• * To introduce a top-down design methodology for a time domain acceleration sensor.
• * To theoretically calculate sensor parameters for desired acceleration resolution.
• * To implement and experimentally validate the designed time domain sensor.

Main Methods:

• * Derivation of acceleration resolution formula based on time-measurement accuracy and sensor sensitivity.
• * Theoretical calculation of vibration amplitude and resonant frequency.
• * Fabrication using silicon-on-insulator process and development of a matched interface circuit.

Main Results:

• * Experimental validation confirms the effectiveness and feasibility of the design methodology.
• * The implemented time domain sensor demonstrates successful operation.
• * Acceleration resolution is shown to be tunable by adjusting time-measurement accuracy and vibration amplitude.

Conclusions:

• * The presented top-down design approach is effective for creating time domain sensors.
• * The implemented sensor provides a viable solution for acceleration measurement.
• * Findings are applicable to other time domain inertial sensors like gyroscopes and tilt sensors.