Innovative current sensor to the highest quality standards The team in the Nano-Argovia project NanoHigh- As part of the Nano-Argovia project NanoHighSens, researchers Sens produced an improved prototype of a new have developed a new type of current sensor that surpasses type of current sensor. (Image: J. Pascal and H. Nicolas, FHNW) existing technologies in terms of bandwidth and resolution and sets new standards for power quality measuring devices. The system is based on seven small magnetometers sur- rounding the current conductor. Each magnetometer is based on 100 magnetic tunnel junctions placed within an area of only “The results of the Nano- 100 μm x 100 μm. The improved resolution and optimized sig- HighSens project provide the nal-to-noise ratio are achieved by averaging 100 magnetic field fundamental basis for a new, measurements per sensor. innovative generation of electri- In the second year of the project, the interdisciplinary team cal high-current sensors.” produced an improved prototype of the sensor based on the Max Ulrich knowledge gained in the first project year and then character- Camille Bauer Metrawatt AG ized this prototype. In addition, the industrial partner Camille Bauer Metrawatt integrated and tested the device in its test area. Collaboration between: FHNW School of Life Sciences // FHNW School of Engineering and Environment // Camille Bauer Metrawatt AG (Wohlen, AG) Project description: https://bit.ly/48ru0uQ 44 SNI Annual Report 2024