Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

Passive RFID sensors - battery-free, wireless pressure measurements

Presentation held at IOSense Spring School 2018, co-located event to the Smart Systems Integration Conference, SSI 2018, 11th of April 2018, Dresden, Germany
: Weder, Andreas; Koch, Sandro; Grätz, Hagen; Kircher, Marco

2018, 24 Folien
Smart Systems Integration Conference (SSI) <2018, Dresden>
Fraunhofer IPMS ()
Anfrage beim Institut / Available on request from the institute

Wireless sensor systems are key technologies for the Internet of Things (IoT). They are used to measure physical parameters like temperature, pressure or humidity in many industrial environments. One possible solution for these measurements is the application of RFID sensor transponders. RFID sensor transponders combine extremely energy efficient sensors with standard RFID protocols. Passive transponders harvest the complete energy for measurement and communication from the electromagnetic field of the RFID reader. Due to the lack of cable connections or an integrated battery, these sensor transponders can be mounted in difficult to reach positions (e.g. inside machines, encapsulated into compound materials, within or on rotating elements, etc.). Therefore, such sensor systems can be operated for many years without expensive maintenance procedures. The talk will introduce the general concept, show advantages, limitations and the use case of battery-free, wireless pressure sensors, based on the Back-End-of-Line (BEoL) integration of a sensor element on top of the CMOS circuit.