Implementation of the Tapered Fiber Sensor, for Measuring Failures Induced by Vibration in Rotary Electric Motors Using the ANSYS Simulator

In this work, a sensor based on Narrowed Optical Fibers (NOF) or Taper, as it is also known, is developed, which allows the measurement of vibrations in electric motors using the cantilever or cantilever bar mechanical model. The objective of this study is to characterize the tapered fiber sensor, based on the vibration measurement range, to accurately measure vibration-induced faults in rotary electric motors. For this, a theoretical study of the mechanical system used is carried out, and then the behavior of the structure is modeled using the ANSYS simulator to determine the frequency values that can be measured with the sensor. Then a practical assembly of the measurement system is developed where a LASER at 1310 nm, an InGasAs 675RE Rifocs photodetector, an ISOTRON model 256–100 commercial accelerometer is used as a light source, for the characterization in frequencies and obtaining the frequency nature of the model. Finally, the system is coupled to electric motors to which vibration faults are introduced that are detected by the developed system.