The investigation of three types of comb-drive actuator for MEMS inclinometer

Abstract

To improve the sensitivity of the MEMS comb — drive inclinometer three shapes of the comb-drive: ordinary, triangular and curve were investigated. We used typical folded beam for displacement of rotor part. By calculating the results in ANSYS, the change of capacitance in curve shape comb-drive is more than in the other shapes. And the quality factor of curve shape actuator is higher than in other shape actuator. The curve shape comb-drive is more suitable for getting higher sensitivity for comb-drive MEMS inclinometer.