Digital Control of Tunneling Accelerometer

Summary, in English

A controller for a tunneling accelerometer has two tasks: to establish tunneling and to maintain tunneling during acceleration. This paper describes the design and implementation of a digital controller that accomplishes these tasks and provides the appropriate gain switching. The control law is based on a standard configuration of an observer and state feedback. A digital controller is implemented because the controller parameters can be easily adjusted, thereby allowing for rapid prototyping. The design methodology presented here can be used as a general plug-and-play controller platform for a range of MEMS sensors. The performance of the digital controller is illustrated experimentally using metrics such as tracking response, drift, noise floor and response linearity.

• Author: Chris Burgner; Zi Yie; Nitin Kataria; Laura Oropeza; Karl Johan Åström; Forrest Brewer; Kimberly L. Turner
• Department/s: Department of Automatic Control
• Publishing year: 2009
• Language: English
• Pages: 1824-1827
• Publication/Series: 2009 IEEE Sensors
• Links: http://dx.doi.org/10.1109/ICSENS.2009.5398432
• Document type: Conference paper
• Topic: Control Engineering
• Keywords: digital control; MEMS sensors; gain switching; plug-and-play controller platform; rapid prototyping; response linearity; state feedback; tracking response; tunneling accelerometer controller
• Conference name: 2009 IEEE Sensors
• Conference date: 2009-10-25
• Conference place: Christchurch, New Zealand
• Status: Published
• Research group: LCCC