Research Interests: MEMS control circuit and sensing circuit
TsangHung Su received his B.S. degree in Electrical and Control Engineering from National Chiao-Tung University in 2002. He graduated from National Taiwan University in 2004 with a master degree in Electrical Engineering. From 2005/Jan to 2011/Aug, he was a circuit designer and application engineer in high-speed/mixed-mode circuit department of TSMC. He joined UC Davis MEMS Lab in 2011/Sep under the supervision of Prof. Horsley. He is currently pursuing his PhD at UC Davis.
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.