Calibration-less direct capacitor-to-microcontroller interface

A new technique to measure a capacitor or a capacitive sensor by means of a direct sensor-to-microcontroller interface circuit that does not need a calibration capacitor is proposed. Basically, the measurement process consists of three consecutive steps of charge, discharge and charge of the capacit...

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Bibliographic Details
Published in:	Electronics letters Vol. 52; no. 4; pp. 289 - 291
Main Authors:	Lopez-Lapeña, O, Serrano-Finetti, E, Casas, O
Format:	Journal Article Publication
Language:	English
Published:	The Institution of Engineering and Technology 18.02.2016 Institution of Electrical Engineers
Subjects:	Calibration calibrationless direct capacitor-to-microcontroller interface capacitance 33 nF to 4.7 nF capacitance 33 nF to 4.7 nF capacitance measurement capacitive sensor capacitive sensors capacitor charge capacitor discharge capacitor measurement Capacitors Charge Circuits cost reduction Detectors Deviation direct sensor-to-microcontroller interface circuit electron device testing Electronics Enginyeria electrònica Instrumentation and measurement Mathematical analysis measurement process Microcontroladors Microcontrollers nonlinear equation nonlinear equations reference value Sensors space reduction temperature 18 degC to 70 degC Àrees temàtiques de la UPC cost reduction capacitor charge capacitive sensors space reduction nonlinear equations capacitive sensor capacitors capacitance 33 nF to 4.7 nF direct sensor-to-microcontroller interface circuit measurement process reference value capacitor measurement electron device testing calibrationless direct capacitor-to-microcontroller interface capacitor discharge temperature 18 degC to 70 degC capacitance measurement nonlinear equation microcontrollers
ISSN:	0013-5194, 1350-911X, 1350-911X
Online Access:	Get full text
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