A Micromachined 2DOF Nanopositioner with Integrated Capacitive Displacement Sensor

View/ Open
Author(s)
Ji, Lujun
Zhu, Yong
Moheimani, SO Reza
Yuce, Mehmet Rasit
Griffith University Author(s)
Year published
2010
Metadata
Show full item recordAbstract
This paper presents the design, fabrication and characterization of a micromachined two degrees-of-freedom (2DOF) nanopositioner. The proposed micro-electro-mechanical system (MEMS) stage, consisting of comb-drive actuators and on-chip capacitive displacement sensors in both X and Y directions, can simultaneously actuate the microstage and sense the corresponding displacements. A commercial capacitive readout IC (MS3110) is used for the open-loop capacitive sensing. The first resonance frequency of the stage is measured to be 4.24 kHz. The positioner has a dynamic range from -6.27 um to +6.64 um at an actuation voltage of 100 V.This paper presents the design, fabrication and characterization of a micromachined two degrees-of-freedom (2DOF) nanopositioner. The proposed micro-electro-mechanical system (MEMS) stage, consisting of comb-drive actuators and on-chip capacitive displacement sensors in both X and Y directions, can simultaneously actuate the microstage and sense the corresponding displacements. A commercial capacitive readout IC (MS3110) is used for the open-loop capacitive sensing. The first resonance frequency of the stage is measured to be 4.24 kHz. The positioner has a dynamic range from -6.27 um to +6.64 um at an actuation voltage of 100 V.
View less >
View less >
Conference Title
2010 IEEE SENSORS
Publisher URI
Copyright Statement
© 2010 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Subject
Microelectromechanical systems (MEMS)