Inaccuracies in measurement of contact pressure due to the measuring grid of a foil sensor

The measurement of contact stresses between elastic bodies is of great importance in a wide range of fields. Many methods are based on a sensor sheet which is placed between the bodies in contact. Depending on the application, the accuracy of measuring results can be considerably affected by the finite thickness and structure of the inserted sensor. This study deals with the imprecision of the Tekscan system and attempts to explain the cause of deviations. For this purpose an imprint method using Fuji prescale film/GODAV software and the FE method was used to compare the results with the results of the Tekscan system.