학술논문
Comparative Analysis of Capacitive Sensors with Different Geometrical layouts for Cable Insulation Degradation Detection
Document Type
Conference
Author
Source
2020 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) Electrical Insulation and Dielectric Phenomena (CEIDP), 2020 IEEE Conference on. :543-546 Oct, 2020
Subject
Language
ISSN
2576-2397
Abstract
This paper presents a comparative analysis between Interdigital Capacitor (IDC) sensor and Serpentine Capacitive (SRC) sensor. The effects of electrode layouts on sensor performance are studied by means of finite element simulation where the geometrical dimensions (except electrode length) and material characteristics of both sensors are identical. Conformal IDC and SRC sensors with equal sensor area are modeled on a cable surface. The simulation results show a tradeoff between IDC and SRC sensors in terms of sensitivity and penetration depth. The SRC sensor shows 13.3% increase in sensitivity and 16.8% increase in capacitance compared to the IDC sensor, though the electric field penetration depth of the SRC sensor is 18.8% lower than the IDC sensor. In addition, the effects of change in electrode width, inter-electrode gap, and number of electrodes on SRC and IDC sensor's comparative performance are evaluated.