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.
Download:
IMEKO-TC4-2022-61.pdf
DOI:
10.21014/tc4-2022.61
Event details
IMEKO TC:
TC4
Event name:
TC4 Symposium 2022
Title:

25th IMEKO TC4 Symposium and 23nd International Workshop on ADC and DAC Modelling and Testing (IWADC)

Place:
Brescia, ITALY
Time:
12 September 2022 - 14 September 2022