Hi, I am working on a sensor to measure water level in a metallic container and for this is I am using capacitance measurement. I used an timer output from my stm32f107 and I am measuring the frequency compared to the level. The issue that I am facing right now, is the change to the frequency that the sensor give and I am suspecting: - Drift of the oscillator vs temperature (the crystal or accompanying components). - changes in water dielectric due to temperature and pressure.
Anyone worked on such sensor? what would be the best route to solve this issue. Thanks, ODSK