Single mode optical fiber vibration sensor: design and development

L. E. Alanis-Carranza; J. A. Alvarez-Chavez; G. G. Perez-Sanchez; A. Sierra-Calderon; J. C. Rodriguez-Novelo

doi:10.1117/12.2237925

14 September 2016 Single mode optical fiber vibration sensor: design and development

L. E. Alanis-Carranza, J. A. Alvarez-Chavez, G. G. Perez-Sanchez, A. Sierra-Calderon, J. C. Rodriguez-Novelo

Proceedings Volume 9973, Infrared Remote Sensing and Instrumentation XXIV; 99730U (2016) https://doi.org/10.1117/12.2237925
Event: SPIE Optical Engineering + Applications, 2016, San Diego, California, United States

Abstract

This work deals with the design and development of an SMF28-based vibration detector including the fiber segment, the data acquisition via an NI-USB-6212 card, the data processing code in Visual Basic and the signal spectrum obtained via Fourier analysis. The set-up consists of a regulated voltage source at 2.6V, 300mA, which serves as the power source for a 980nm semiconductor laser operating at 150mW which is fiber coupled into a 20m-piece of SMF-28 fiber. Perpendicular to such fiber the perturbations ranged from 1 to 100 kHz, coming from a DC motor at 12 Volts. At the detection stage, a simple analog filter and a commercial photo diode were employed for data acquisition, before a transimpedance amplification stage reconstructed the signal into the National Instruments data acquisition card. At the output, the signals Fourier transformation allows the signal to be displayed in a personal computer. The presentation will include a full electrical and optical characterization of the device and preliminary sensing results, which could be suitable for structural health monitoring applications.

Citation Download Citation

L. E. Alanis-Carranza, J. A. Alvarez-Chavez, G. G. Perez-Sanchez, A. Sierra-Calderon, and J. C. Rodriguez-Novelo "Single mode optical fiber vibration sensor: design and development", Proc. SPIE 9973, Infrared Remote Sensing and Instrumentation XXIV, 99730U (14 September 2016); https://doi.org/10.1117/12.2237925

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KEYWORDS

Fiber optics

Sensors

Optical fibers

Visualization

Data acquisition

Signal detection

Computer security

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