▎ 摘 要
Graphene (GrF) doped elastomer based pressure sensors (PgS) were obtained in two stages. These materials were analyzed in the SEM device and the interaction between the distribution of filler materials and the resistance was examined. By applying cyclic loads for different displacement values to PgS, changes in resistance values due to the internal structure of the samples were observed. The surface area, mechanical properties and distribution shape of the conductive filler material in the matrix determine the conductivity of PgS. The decrease in resistance and increase in conductivity due to the pressure-resistance relationship is higher at 3 mm compression. The resistance change of GrF doped PgS varies as a function of the load. Although some resistance increases with the increase in force, the resistance tends to decrease as a result of the transfer of the load to the filler material. Cyclic loading-unloading tests were performed on PgS at 1mm, 2mm and 3mm displacements, and compression forces of 85 N, 273 N and 601 N were obtained, respectively. The highest resistance value was determined as 5.29Ex06 ohm after 3 mm compression. In our study, by making use of this unique feature of PgS, in the tests we made with the application of air suspension bellows on the damping bumper, which is the secondary suspension element, estimates were made about the working conditions of the bellows.