Nano Science and Technology Institute
Nanotech 2001 Vol. 1
Nanotech 2001 Vol. 1
Technical Proceedings of the 2001 International Conference on Modeling and Simulation of Microsystems
 
Chapter 4: System Level Modeling
 

Comparison of Two Novel Control Strategies for a Closed Loop Micromachined Tunnelling Accelerometer

Authors:E. Gaura and M. Kraft
Affilation:Coventry University, UK
Pages:100 - 103
Keywords:tunneling accelerometers, sigma-delta modulator, artificial neural networks
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 rations. 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.
Comparison of Two Novel Control Strategies for a Closed Loop Micromachined Tunnelling AccelerometerView PDF of paper
ISBN:0-9708275-0-4
Pages:638
Up
© 2014 Nano Science and Technology Institute. All Rights Reserved.
Terms of Use | Privacy Policy | Contact Us | Site Map