Comparison of two novel control strategies for a closed loop micromachined tunnelling accelerometer

E. Gaura, M. Kraft

Research output: Chapter in Book/Report/Conference proceedingConference proceeding

Abstract

This paper presents system level modelling and simulations results of two closed loop, force-feedback control strategies for micromachined tunnelling accelerometers. The first approach is based on the incorporation of the sensing element in a sigma-delta modulator loop. The second strategy relies on two artificial neural networks (ANN) for both controlling the sensor and linearising the feedback loop. Both approaches have their merits and disadvantages. The former results in a direct digital sensor but it may prove problematic to achieve sufficiently high signal to quantisation noise ratios. The latter requires the use of an analogue to digital converter (at the output of the pick-off circuit) but has the advantage of achieving better measurement linearity.
Original languageEnglish
Title of host publication2001 International Conference on Modeling and Simulation of Microsystems - MSM 2001
EditorsM. Laudon, B. Romanowicz
Place of PublicationTexas, US
PublisherNSTI
Pages100-103
Number of pages4
ISBN (Print)0970827504
Publication statusPublished - 2001
Event2001 International Conference on Modeling and Simulation of Microsystems - MSM 2001 - Hilton Head Island, United States
Duration: 19 Mar 200121 Mar 2001

Conference

Conference2001 International Conference on Modeling and Simulation of Microsystems - MSM 2001
CountryUnited States
CityHilton Head Island
Period19/03/0121/03/01

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Keywords

  • Accelerometers
  • Closed loop control systems
  • Computational complexity
  • Delta sigma modulation
  • Mathematical models
  • Modulators
  • Neural networks
  • Signal to noise ratio
  • Transducers, Closed-loop tunneling accelerometers
  • Digital control
  • Mechanical sensing element
  • Micromachined sensing element, Micromachining

Cite this

Gaura, E., & Kraft, M. (2001). Comparison of two novel control strategies for a closed loop micromachined tunnelling accelerometer. In M. Laudon, & B. Romanowicz (Eds.), 2001 International Conference on Modeling and Simulation of Microsystems - MSM 2001 (pp. 100-103). Texas, US: NSTI.