Multi-axis flexible force sensor for tactile display

In this study, we were the development and calibration of new complex sensor which is similar to tactile sensing of human due to can be measured normal and shear force by using newly developed synthetic elastomer and conductive silicone. The developed sensor can sense pressing force by capacitance changes as thickness changes by applied normal force in surface. And this sensor can sense by using capacitance change as an electrode area change when applied shear force. The capacitance change is measured by CDC(capacitance to digital converter integrated circuits) and the data is transmitted to user interface of a Host PC though microcontroller system constructed for signal processing. To verify the performance of the sensor, we constructed a calibration system and accurately analyzed the applied force.