Title :
A Tunable Analog Conditioning Circuit Applied to Magnetoresistive Sensors
Author :
Medrano-Marqués, Nicolás J. ; Zatorre-Navarro, G. ; Celma-Pueyo, S.
Author_Institution :
Zaragoza Univ., Zaragoza
Abstract :
This paper presents an adaptive processing system based on analog-digital circuits to extend the linear range of angular position sensors compensating the temperature-dependent drift. System-level simulations give a sensor output improvement higher than 70%, which drastically reduces deviations due to temperature. The building block architecture characteristics make these circuits suitable for implementing the ldquosmartnessrdquo part of smart sensors in embedded systems.
Keywords :
adaptive signal processing; circuit tuning; electric sensing devices; magnetoresistive devices; mixed analogue-digital integrated circuits; signal processing equipment; adaptive processing system; analog-digital circuits; embedded systems; magnetoresistive sensors; tunable analog conditioning circuit; Adaptive systems; Analog-digital conversion; Intelligent sensors; Magnetic circuits; Magnetic sensors; Magnetoresistance; Sensor phenomena and characterization; Sensor systems; Temperature sensors; Tunable circuits and devices; Adaptive signal processing; Sensor conditioning; adaptive signal processing; magnetoresistive devices; mixed analog–digital integrated circuits; mixed analog-digital integrated circuits; neural network hardware; sensor conditioning;
Journal_Title :
Industrial Electronics, IEEE Transactions on
DOI :
10.1109/TIE.2007.896555
