Coventry University – Page 2 – TechConnect Briefs

Noise Considerations for Closed Loop Digital Accelerometers

Gaura E., Kraft M., Coventry University, UK

This paper investigates the noise shaping properties of a sigma-delta modulator type control system applied to a micromachined accelerometer. Three noise sources are present in such an electromechanical closed loop system: mechanical noise due to [...]

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

Gaura E., Kraft M., Coventry University, UK

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 [...]

Closed-Loop, Neural Network Controlled Accelerometer Design

Gaura E.I., Ferreira N., Rider R.J., Steele N., Coventry University, UK

In this paper, a closed-loop, smart transducer design is proposed, based on artificial neural network (ANN) techniques. The design aims to improve the performance of open-loop, off-the-shelf capacitive acceleration sensors and increase their robustness to [...]

A Neural Network Approach for the Identification of Micromachined Accelerometers

Gaura E.I., Steele N., Rider R.J., Coventry University, UK

The paper presents the identification procedure for a nonlinear accelerometer using a neural network. Simulation results obtained in SPICE and Matlab show good agreement between the behaviour of the sensor over its entire working range [...]

System Level Simulation of a Digital Accelerometer

Kraft M., Lewis C.P., Coventry University, UK

This paper describes the derivation of a detailed model of a micromachined accelerometer and its implementation in a commercial SPICE package. The sensing element is modeled at a system level, the control and interface electronics [...]