FGLSensOPro

(FKZ: 03ZZ1046A, Projektträger Jülich)

The aim of this project is to provide sensor structures that can monitor high strains that occur repeatedly in prosthesis and orthotic components. Previous sensors, e.g. strain gauges, are not able to cope with these large strains. The sensor structures must therefore meet all requirements that result from this application environment (i.e. cyclical mechanical loads and external temperature influences), as well as requirements that result from the need for reliable integration into the fiber-plastic composite.
Subordinate goals are the research and development of suitable strain-sensitive materials using Acquandas microsystem fabrication technology. NiTi based shape memory alloy (SMA), more precisely NiTi, NiTiCu and NiTiCuxCo, are investigated and their electrical resistance change with strain is characterized, as well as means to facilitate mechanical and electrical integration into carbon-fiber reinforced plastics. The sensor structures are further processed by the partners in the consortium (Fraunhofer IWU Dresden, FiberCheck, OttoBock, RehaAktiv 2000). The aim of the overall project is the development and testing of a functional, cost-effective sensor system for monitoring the strain in the FRP.

sting of a functional, cost-effective sensor system for monitoring the strain in the FRP.