1. Introduction -- 2. State of the Art of Embedded Strain Sensors for Fiber Reinforced Plastics -- 3. Electrical Homogeneity and Fiber Waviness: Predominant Factors for Self-Strain-Sensing Carbon Fiber Structures - A Literature Study -- 4. Concerning the Influence of Current Inhomogeneity on Self-Strain-Sensing Properties of Carbon Fiber Reinforced Plastics -- 5. Direct Measurement of the Potential Distribution on Conducting Surfaces -- 6. Implementation Aspects of Self-Strain-Sensing Carbon Fiber Rods -- 7. Summary Conclusions and Outlook.