A novel design of tactile sensor using piezoresistive cantilever for robotic application

摘要

In this research, we suggest a structure of a PDMS cap with pyramid shape structure pushing on the cantilevers whose thickness is five time less than conventional tactile sensor and we also use five different types of material for cantilever which are silicon carbide (SiC), tungsten (W), iron (Fe), molybdenum (Mo) unlike conventional silicon cantilever. We have recognized the anxiety connected in both lateral and normal direction to expand affectability of the piezoresistive sensor. As in conventional tactile sensor there is four silicon cantilevers is embedded in air cavity. In this paper we simulate proposed tactile sensor by which we confirmed In comparison with conventional sensor the result of proposed sensor increase the sensitivity 10 to 40 times depend on the material of sensing element. Tactile sensor is used in the area of robotics, manipulating objects and robot-hands is one of the main studies. To achieve exploitation with optimum pressure, as the human does, it is essential to compute as well as apply the pressure, which occurs between the target object and the robot-hands.