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Direct inductive sensor-to-microcontroller interface circuit
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.contributor.other | Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica |
dc.date.accessioned | 2016-05-10T10:29:47Z |
dc.date.available | 2016-05-10T10:29:47Z |
dc.date.issued | 2015-04-01 |
dc.identifier.citation | Kokolanski, Z., Jordana, J., Gasulla, M., Dimcev, V., Reverter, F. Direct inductive sensor-to-microcontroller interface circuit. "Sensors and actuators A. Physical", 01 Abril 2015, vol. 224, p. 185-191. |
dc.identifier.issn | 0924-4247 |
dc.identifier.uri | http://hdl.handle.net/2117/86844 |
dc.description.abstract | This paper proposes and analyses a microcontroller-based interface circuit for inductive sensors with a variable self-inductance. Besides the microcontroller (mu C) and the sensor, the circuit just requires an external resistor and a reference inductor so that two RL circuits are formed. The mu C appropriately excites such RL circuits in order to measure the discharging time of the voltage across each inductor (i.e. sensing and reference) and then it uses such discharging times to estimate the sensor inductance. Experimental tests using different commercial mu Cs at different clock frequencies show the limitations (especially, due to parasitic resistances and quantisation) and the performance of the proposed circuit when measuring inductances in the millihenry range. A non-linearity error lower than 0.3% full-scale span (FSS) and a resolution of 10 bits are achieved, which are remarkable values considering the simplicity of the circuit. (C) 2015 Elsevier B.V. All rights reserved. |
dc.format.extent | 7 p. |
dc.language.iso | eng |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Enginyeria electrònica |
dc.subject.lcsh | Detectors |
dc.subject.other | inductive sensor |
dc.subject.other | microcontroller |
dc.subject.other | sensor electronic interface |
dc.title | Direct inductive sensor-to-microcontroller interface circuit |
dc.type | Article |
dc.subject.lemac | Detectors |
dc.contributor.group | Universitat Politècnica de Catalunya. e-CAT - Circuits i Transductors Electrònics |
dc.identifier.doi | 10.1016/j.sna.2015.01.017 |
dc.rights.access | Open Access |
local.identifier.drac | 15596211 |
dc.description.version | Postprint (author's final draft) |
local.citation.author | Kokolanski, Z.; Jordana, J.; Gasulla, M.; Dimcev, V.; Reverter, F. |
local.citation.publicationName | Sensors and actuators A. Physical |
local.citation.volume | 224 |
local.citation.startingPage | 185 |
local.citation.endingPage | 191 |
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