Generalized Resonance Sensor Based on Fiber Bragg Grating

In response to the difficulty of weak detection early bearing damage, resonance demodulation technology and principle fiber Bragg grating sensing strain were combined design a generalized sensor, which can extract pulse signal bearing’s damage from rolling bearing. First, dynamics second-order mechanical systems based on principles is proposed. Second, basic structure sensor designed. Then, ANSYS finite element simulation used analyze natural frequency sensor. Finally, value was obtained through experiments. The experimental results proof-of-principle show that are consistent with theoretical predictions. model accurate, verifies feasibility