Design and Characterisation of Screen-Printed Piezoresistive Cantilever for Strain Sensor Application

Abstract

This work addresses the increasing demand for reliable, sustainable and sensitive sensor devices in the sensing field. Conventional methods usually use silicon as substrates and present challenges such as inflexibility and limitations of the substrate that can be used. To overcome this, in this work, a sensitive substrate such as Bristol paper based on screen printed piezoresistive for strain sensor has been designed, fabricated, and tested. A 350 gsm Bristol paper was used as the substrate material, and graphite and silver ink were used as piezoresistive and electrode pad, respectively. The screen-printing method was used to fabricate the strain sensor. The proposed sensor can measure a strain range from 5  to 19.6  with a force resolution of 196 u  The implemented sensor has a sensitivity of 0.38 .