Resistivity Characteristics of Piezoresistive Based Transduction Tactile Sensing Using Pressure Sensitive Conductive Rubber Sheet

2 Summary: This paper presents the development of a tactile sensor based on pressure sensitive conductive rubber and outlines the resistance measurements performance. This sensor is specially designed for a robotic hand developed at UiTM Faculty of Mechanical Engineering. It exhibits piezoresistive like behaviour whose resistance change with force/pressure enables its applications as tactile sensor. The operating principle and hardware architecture of the sensor is explained. This study results in finding new alternative material selection for tactile sensor which needed more exploration and experimentation in order to discover their potential as tactile sensor for robotic hand as well as other field. In this paper, the working principle and sensor design concept are described. Further, experimental results and analysis of materials resistance characteristics are presented. The test results indicate significant drop of resistance with the increase of applied load.