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Charge-transfer-based signal interface for resistive sensors

Author
Gaitán-Pitre, J. E.; Pallàs, R.
Type of activity
Presentation of work at congresses
Name of edition
XXI IMEKO World Congress
Date of publication
2015
Presentation's date
2015-09-01
Book of congress proceedings
XXI IMEKO World Congress
First page
672
Last page
675
Repository
http://hdl.handle.net/2117/86684 Open in new window
Abstract
Charge transfer has been demonstrated to be a cost-effective method to measure capacitive sensors with low-end microcontrollers. Here we apply charge transfer to measure the output of voltage dividers that include a high value resistive sensor hence extending the advantages of this method to a large group of sensors. By using two-point calibration, the maximal deviation obtained, referred to the Full Scale Span (FSS), is ±4 % for sensors between 100 kO and 1 MO, and ±5 % for sensors between 1 ...
Citation
Gaitán-Pitre, J. E., Pallas, R. Charge-transfer-based signal interface for resistive sensors. A: IMEKO World Congress. "XXI IMEKO World Congress". Praga: 2015, p. 672-675.
Keywords
Resistive sensor, charge transfer method, direct sensor interface, sensor-to-microcontroller interface
Group of research
GRUP ISI - Instrumentation, Sensors and Interfaces Group

Participants

  • Gaitan Pitre, Jorge Eliécer  (author and speaker )
  • Pallas Areny, Ramon  (author and speaker )