ΔE-effect Sensors
ΔE-effect magnetic field sensors utilize the frequency shift of a high frequency electromechanical resonator due to the change in the Young’s modulus of a magnetostrictive component in a magnetic field. The sensor allows broadband magnetic field measurements at low frequencies and are very robust. Based on successful preparatory work, the project aims at exploring the best overall strategy for ΔE-effect sensors, including different sensor geometries and resonance modes, new piezoelectric materials, the use of magnetic field concentrators, and exchange bias materials, which enables fully integrated sensors without coils and minimal crosstalk.