Modelling and Simulation of Adaptive Digital AC Bridge for Impedance Measurements
| Autor: | T. Revathi, S. Edward Rajan, K. Muneeswaran, P. S. Karman |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Computer science
Computation Bridge (nautical) Least mean squares filter Dynamic simulation Hardware and Architecture Mechanics of Materials Control theory Modeling and Simulation Control system Convergence (routing) Electronic engineering Electrical and Electronic Engineering Electrical impedance Software Voltage |
| Zdroj: | International Journal of Modelling and Simulation. 27:16-23 |
| ISSN: | 1925-7082 0228-6203 |
| Popis: | This paper proposes an innovative and efficient method for balancing an adaptive digital AC bridge employing a closed-loop control system to measure the impedance of passive networks. A neoteric method that uses Widrow-Hoff's least mean square (LMS) algorithm is adopted to minimize the error and to reduce the complexity of computation. The MATLAB-SIMULINK package is used for the dynamic simulation of digital AC bridge. By using this modelling, we have achieved higher accuracy, reproducibility, and faster convergence. The digital AC bridge is balanced by controlling the in-phase and quadrature component of the complex voltage. The stability of the bridge is controlled by the parameter μ, which also determines the adaptation rate. This paper also explains the various methodologies used for simulation reporting the results. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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