Design and printing of a coplanar capacitive proximity sensor to detect the gap between dielectric foils edges

This paper presents the design and development of a coplanar capacitive proximity sensor for detection gap between edges dielectric foils. The finite element analysis is applied to study by investigating effects different physical parameters, like, sensing electrodes width, spacing them thickness substrate on its responses. sensitivity increases with ascending electrode width; but negatively affected growing electrodes. Conversely, foil edge range rises width Moreover, optimum performance observed positioned centered target remaining in contact surface. set parameters fabricated polyimide inkjet demonstrates an average 0.105 fF/μm 500 µm 450 thick polyethylene foil, when vertical active area maintained zero. capability reduce significantly increasing foil. • Detection polymeric edges. Numerical simulation sensor. Studying external parameter Optimization design. Use printing method develop flexible characterization.