Sensor compensation using analogue-digital adaptive circuits

Sensor nonlinearities, ageing, temperature changes and other physical dependences force to include conditioning circuits in electronic measurement and control systems. This paper shows an analogue-digital processing architecture based on an adaptive circuit designed to extend the linear range of an...

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Bibliographic Details
Main Authors: Medrano-Marques, N., Zatorre-Navarro, G., Celma-Pueyo, S.
Format: Conference Proceeding
Language:English
Subjects:
Aging
Circuits
Force control
Force measurement
Force sensors
Intelligent sensors
Nonlinear control systems
Sensor systems
Temperature dependence
Temperature sensors
Online Access:Request full text
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Summary:Sensor nonlinearities, ageing, temperature changes and other physical dependences force to include conditioning circuits in electronic measurement and control systems. This paper shows an analogue-digital processing architecture based on an adaptive circuit designed to extend the linear range of an angular position sensor, compensating the output drift due to temperature variations. System-level simulations give a temperature-independent linear output in the range of 293-353 K, with an accuracy of 2 degrees in the angular position. Inherent low power and low size characteristics make these circuits valuable to implementing the "smartness" part of smart sensors
ISSN:0271-4302
2158-1525
DOI:10.1109/ISCAS.2006.1692816