Microcontroller-based interface circuit for inductive sensors

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To access the full text documents, please follow this link: http://hdl.handle.net/2117/27327

dc.contributor	Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica
dc.contributor	Universitat Politècnica de Catalunya. e-CAT - Circuits i Transductors Electrònics
dc.contributor.author	Kokolanski, Zivko
dc.contributor.author	Jordana Barnils, José
dc.contributor.author	Gasulla Forner, Manuel
dc.contributor.author	Dimcev, Vladimir
dc.contributor.author	Reverter Cubarsí, Ferran
dc.date	2014
dc.identifier.citation	Kokolanski, Z. [et al.]. Microcontroller-based interface circuit for inductive sensors. A: Eurosensors. "Procedia Engineering". Brescia: 2014, p. 1251-1254.
dc.identifier.citation	ISSN 1877-7058
dc.identifier.citation	10.1016/j.proeng.2014.11.411
dc.identifier.uri	http://hdl.handle.net/2117/27327
dc.language.iso	eng
dc.relation	http://www.sciencedirect.com/science/article/pii/S1877705814025260
dc.rights	Attribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject	Àrees temàtiques de la UPC::Enginyeria electrònica::Microelectrònica
dc.subject	Àrees temàtiques de la UPC::Enginyeria electrònica::Instrumentació i mesura::Sensors i actuadors
dc.subject	Detectors
dc.subject	Electronic controllers
dc.subject	Microelectronics
dc.subject	Inductive sensor
dc.subject	microcontroller
dc.subject	sensor electronic interface
dc.subject	Sensors
dc.subject	Microcontroladors
dc.title	Microcontroller-based interface circuit for inductive sensors
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/other
dc.description.abstract	This work proposes a fully-digital interface circuit for the measurement of inductive sensors using a low-cost microcontroller (µC) and without any intermediate active circuit. Apart from the µC and the sensor, the circuit just requires an external resistor and a reference inductance so that two RL circuits with a high-pass filter (HPF) topology are formed. The µC appropriately excites such RL circuits in order to measure the discharging time of the voltage across each inductance (i.e. sensing and reference) and then it uses such discharging times to estimate the sensor inductance. Experimental tests using a commercial µC show a non-linearity error (NLE) lower than 0.5%FSS (Full-Scale Span) when measuring inductances from 1 mH to 10 mH, and from 10 mH to 100 mH.
dc.description.abstract	Peer Reviewed

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