This article evaluates the capabilities of piezoelectric and MEMS sensors in identifying frequencies associated with bearing fault failure. Graphical illustrations guide readers through the stages of bearing fault progression, pinpointing when each sensor type begins to recognize irregularities that signify the need for intervention. We find that the broad frequency range of piezoelectric sensors make them the superior choice for detecting the high-frequency vibrations that signify early-stage faults, showcasing their crucial role in preventing machinery damage and enhancing operational efficiency.
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