Patent ID: 8511174
Filing Date: 2013-08-20
Classification: B60C,G01L

Abstract:
1. A sensor as an integrated component of an article, in particular an elastic article, where the sensor comprises a polymeric material, wherein the polymeric material is provided with electrically conductive additives and acts as a strain sensor ( wherein filler-filler interactions are reduced by strain as a function of the dynamic stress (amplitude, frequency, time) and only partly recombine after interruption of the mechanical stress; said polymeric material therefore acts as a strain-dependent (variable) resistance; change in the polymeric material is monitored over the number of loading cycles as a result of the only partial recombination of the filler-filler interaction; in addition, relaxation time after mechanical deformation has been stopped is greatly dependent on the preceding deformation amplitude; and a combination of these two effects creates a strain sensor which measures the mechanical stress and aging state of polymers; and wherein if the electrically conductive additives have a conductivity in the range from 10 wherein if the electrically conductive additives have a conductivity in the range from 10