1. Department of Electrical Engineering and Information Technology, Measurement and Sensor Technology Group, Technische Universität Darmstadt, Darmstadt, Germany
2. Department of Mechanical Engineering, Institute of Product Engineering, Karlsruhe Institute of Technology, Karlsruhe, Germany
3. Department of Electrical Engineering and Information Technology, Integrated Electronic Systems Laboratory, Technische Universität Darmstadt, Darmstadt, Germany
4. Department of Mechanical Engineering, Institute of Product Development and Machine Elements, Technische Universität Darmstadt, Darmstadt, Germany