1. Swedish School of Textiles; Smart Textiles; University of Borås; SE-501 90 Borås Sweden
2. Sensor and Actuator Systems Division; Department of Physics, Chemistry and Biology (IFM); Linköping University; SE-581 83 Linköping Sweden
3. LAAS-CNRS; Université de Toulouse; CNRS; 7 avenue du Colonel Roche F-31400 Toulouse France