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

Damir Krklješ; Kalman Babković; László F. Nagy

doi:10.4028/www.scientific.net/KEM.543.184

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

Abstract:

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