Specific Conductance Characteristic of Force Sensing Resistor (FSR) with Custom Made Single-gap Conductive Contacts

摘要

This paper investigates the force-dependent contact area excitation of the standard Force Sensing Resistor (Interlink FSR) with modified conductive contacts. The force dependent area excitation was accomplished by the deformation of a dome shaped rubber element. The characteristic of the FSR - the pressure dependency of its specific conductance (per length) was experimentally obtained from the fixed contact area excitation. The experimental results were then fitted to a power law function. Verification of the characteristic was done by comparing the measured and predicted values of the sensor conductance when the force-dependent excitation is applied.