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Direct inductive sensor-to-microcontroller interface circuit

Author
Kokolanski, Z.; Jordana, J.; Gasulla, M.; Dimcev, V.; Reverter, F.
Type of activity
Journal article
Journal
Sensors and actuators A. Physical
Date of publication
2015-04-01
Volume
224
First page
185
Last page
191
DOI
https://doi.org/10.1016/j.sna.2015.01.017 Open in new window
Repository
http://hdl.handle.net/2117/86844 Open in new window
URL
http://www.sciencedirect.com/science/article/pii/S0924424715000266?via%3Dihub Open in new window
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 s...
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.
Keywords
inductive sensor, microcontroller, sensor electronic interface
Group of research
e-CAT - Electronic Circuits and Transducers

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