Inductive transducers for measuring vibrations

The study presents the development and validation of an inductive vibration transducer with improved sensitivity and linearity. The proposed design integrates optimized magnetic core geometry and differential coil configuration, enabling precise measurement of vibration displacements in the frequency range of 0.5-50 Hz. A mathematical model was formulated to describe the relationship between the induced electromotive force and the dynamic displacement of the core, and analytical results were verified experimentally. The developed sensor demonstrates high stability, minimal hysteresis, and a measurement uncertainty not exceeding ±3 %. The results confirm the applicability of the designed transducer for vibration diagnostics in traction asynchronous motors and transport engineering systems.