Mechanical and Aerospace Engineering at UC Davis
Topic: MEMS Gyroscope’s Dynamics and Control
Gyroscopes are sensors that measure absolute change in angle or angular rate of a rotating object. They are widely used in applications including robotics, automotive industry, aerospace industry, smart phones, game consoles, image stabilization, etc.
Conventional gyroscopes which work based on gyroscopic effect, fiber-optic gyroscopes (FOGs), and ring-laser gyroscopes (RLGs) that uses Sagnac Effect are heavy, bulky and expensive and consume large amount of power, but they provide a very high precision in measurement.
In contrast, micro-machined vibratory gyroscopes are very small devices (up to a few millimeter in dimension) that work based on Coriolis force coupling between two resonance modes. The small size, low power consumption, and cheap price make these sensors popular in automotive, gaming, smart phones, and robotics industries.
These sensors referred to as MEMS (microelectromechanical system) gyroscopes are currently less accurate due to their miniature size and imperfections in fabrication methods, which make them not appropriate for some applications, such as indoor naviagtion.
In this talk, we present methods in design, and control algorithms for MEMS vibratory gyroscopes to cancel the effect of imperfections in fabrication and improve gyroscope performance.
For more information, contact Professor Soshi: firstname.lastname@example.org
Date(s) - 12/01/2016
4:10 pm - 5:00 pm
1062 Bainer Classroom