Research Interests: Gyros and Inertial sensors, Controls
Sarah studied General Engineering at Harvey Mudd College, and received her B.S. in 2010. She then studied with Professor Bahram Ravani at U.C. Davis, receiving her M.S. in Mechanical Engineering in 2012. She joined the MEMS lab at UC Davis in 2012, and is currently pursuing a Ph. D in Mechanical Engineering under Professor Horsley.
Integrated Microgyroscopes with Improved Scale-Factor and Bias Stability [BPN684]
Despite their small size, low power dissipation, and low cost, the large bias and scale factor errors of current MEMS inertial sensors preclude using them for dead reckoning navigation. Although these shortcomings can be overcome with precision manufacturing and extensive calibration, such solutions suffer from high cost and secondary effects such as long term drift. Presently, the use of in-situ calibration techniques in MEMS sensors is limited to the electronic interfaces, where they are instrumental for reducing drift arising from electronic components. This project extends the benefit of electronic background calibration to the MEMS transducer to continuously reduce scale factor and bias errors arising from manufacturing tolerances and drift.