Transmit-receive circuit concepts for magneto-mechanical resonators

Citation
IEEE Sensors 2025
Contribution to Conference
IEEE Sensors 2025  
Publisher DOI
10.1109/sensors59705.2025.11330979
Publisher
IEEE
Is Supplemented By
10.5281/zenodo.14764827
Passive wireless sensors are crucial in modern medical and industrial settings to monitor procedures and conditions. We present two circuit concepts for the inductive excitation and signal reception of magneto-mechanical resonators, which are integrated into a transmit-receive signal chain. The focus is on comparing the concepts with respect to their ability to deliver power at different frequencies and to receive signals. Additional necessary components of the signal chain are illustrated for the full system context but not analyzed in detail. Instrumentation and design aim to be scalable for multi-channel arrays, using either off-the-shelf class-D audio amplifiers or a custom H-bridge.
DDC Class
620: Engineering