Fraunhofer Institute for Electronic Nano SystemsThe wake-up generator from Fraunhofer ENAS can be used to increase the service life of autonomous sensor systems tenfold, as during phases without external events, these run in the power down mode - the mode with the lowest energy consumption. If a mechanical event occurs externally, it is converted into an electrical signal that wakes the sensor system and ensures that the full amount of energy is supplied. In power down mode, the overall system uses less than 1.35 μA – considerably less than previously available systems. This means that a long service life and highly precise measurements no longer have to be mutually exclusive. Whether for monitoring transported goods or the health of structural components, the new energy-saving systems can be used in many applications.