Radio-Frequency-Based Resonating Sensor for Condition Monitoring on Rotary Equipment

This work proposes a novel elastic Radio-Frequency (RF)-based metamaterial (MTM) sensor for condition monitoring of rotating machines. The RF sensing phenomenon has been investigated to detect undesirable physical inputs in rotating machines. The investigation constitutes the feasibility of applying this sensing mode based on RF-metamaterials relative permeability and return loss response. We demonstrate via numerical modeling and computational simulation that the proposed methodology generates a clear frequency shift when the amplitude of deformation varies and generates distinctive patterns when different modes of deformations are encountered.