We present a polynomial correction factor to improve the analytical models proposed in literature to estimate the sensing capacitance of guarded capacitive for displacement measurement. The correction factor has been obtained by fitting parametric numerical calculations based on Finite Element Analysis. The proposed heuristic model provides accurate estimations for a wide range of measuring distances. The robustness of the model has been tested by varying the size of the insulator gap g, even considering the sensor mounted in a recess of the fixed grounded plate with different geometries.

Addabbo, T., Fort, A., Mugnaini, M., Rocchi, S., Vignoli, V. (2015). Improved model for the capacitance estimation of guarded capacitive sensors. In Proceedings of the 2015 18th AISEM Annual Conference, AISEM 2015 (pp.1-4). New York : Institute of Electrical and Electronics Engineers Inc. [10.1109/AISEM.2015.7066772].

Improved model for the capacitance estimation of guarded capacitive sensors

Addabbo, Tommaso;Fort, Ada;Mugnaini, Marco;Rocchi, Santina;Vignoli, Valerio
2015-01-01

Abstract

We present a polynomial correction factor to improve the analytical models proposed in literature to estimate the sensing capacitance of guarded capacitive for displacement measurement. The correction factor has been obtained by fitting parametric numerical calculations based on Finite Element Analysis. The proposed heuristic model provides accurate estimations for a wide range of measuring distances. The robustness of the model has been tested by varying the size of the insulator gap g, even considering the sensor mounted in a recess of the fixed grounded plate with different geometries.
2015
9781479985913
Addabbo, T., Fort, A., Mugnaini, M., Rocchi, S., Vignoli, V. (2015). Improved model for the capacitance estimation of guarded capacitive sensors. In Proceedings of the 2015 18th AISEM Annual Conference, AISEM 2015 (pp.1-4). New York : Institute of Electrical and Electronics Engineers Inc. [10.1109/AISEM.2015.7066772].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/981483