Capacitive Sensor with Stretchable Membrane Fabricated by 3D Printing for Displacement Application

In this paper we present two stretchable capacitive sensors which have different diameter of electrodes (20 and 30 mm). For capacitive sensor realizations are used 3D printing technology using PLA (all sensor’s casings elements) and NinjaFlex (membrane) printing materials. 3D printed sensors are applied for displacement measurement. The experimental results of 3D printed capacitive sensors show that they are suitable candidates for displacement application with two range: linear (from 0 to $ 1200\,\mu \mathrm{m}$ and nonlinear (from $ 1200\,\mu \mathrm{m}$ to $ 1800\,\mu \mathrm{m}$).