Development and Prototyping of a Capacitive Oil Level Sensor for Aeronautical Applications

Francesco Adamo, Filippo Attivissimo, Sergio de Gioia, Attilio Di Nisio, Daniel Lotano, Mario Savino

Abstract

Capacitive Level Sensors (CLSs) are one of the most used level-sensing technologies in the industry as they are cheap, reliable and show high sensitivity. A typical capacitive level sensor with concentric and closed cylindrical armatures has slow dynamical response when used for high viscosity liquids such as lubricating oil for aeronautic applications. This work investigates a conditioning circuit that uses a capacitance to frequency converter and that could provide fast and accurate measurements when paired with cylindrical sensor using an LC tank-based oscillator as the exciting source. The preliminary experimental results show a linear response with small error and standard deviation.

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IMEKO-TC4-2022-61.pdf

DOI

10.21014/tc4-2022.61

IMEKO TC

TC4 - Measurement of Electrical Quantities

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