Mathematical Modeling and Simulation of Electrode Skewing in Capacitive Proximity Sensor
Євген Олександрович ЗАЙЦЕВ, Viktoriia Bereznychenko, Sergy Zakusilo · 2025
In the paper the influence of the skew the surface of sensitive element of the runout sensor of it conversion function is considered. The sensor is designed for use in control systems and diagnostics of the actual technical condition of high-power hydro generators. During the installation of beat parameter sensors, installation errors occur. One of this error it's skewing sensor axis relative to the normal to the shaft axis. To assess the effect of influence of the skew error on the runout capacitive sensors response function stability, a mathematical modeling for calculation scheme was utilized, and simulations were conducted in the Comsol Multiphysics environment. The research conducted enabled the derivation of a set of response functions for runout capacitive sensors with plane-parallel electrodes. The results of the analysis of the obtained response functions possible to determine that the skew has a direct effect on the response function of the runout capacitive sensors and is an additive component of the conversion function of the capacitive runout capacitive sensors for technical condition control and diagnostics systems of high-power hydro generators.