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Sixtinah Deswilan
Department of Physics, Faculty of Mathematics and Natural Science, Universitas Andalas, Padang.
Astronomy Earth & Planetary Sciences Materials Science & Nanotechnology Physics

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Characterization of Multiple-bend Optical Fiber Extensometer Design for Landslide Sensor Aldo Novaznursyah Costrada; Sixtinah Deswilan; Badrul Mustafa Kemal; Harmadi Harmadi
Jurnal Ilmu Fisika Vol 13 No 1 (2021): March 2021
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jif.13.1.1-7.2021

Abstract

Design of multiple-bend extensometer based on optical fiber as landslide sensor has been characterized. Multiple-bending characterization has been done by varying the winding number of optical fiber FD-620-10 to obtain the photodiode's effective light intensity.  The light intensity in the extensometer was set by varying the laser diode resistance in the range (150 – 250) Ω.  The optimum sensitivity of 0.03984 V/cm was obtained for triple winding of optical fiber. The designed optical extensometer is able to monitor the displacement with an error of 0.59%. This result indicates that the designed extensometer is the more bending on optical fiber, the more its sensitivity and the bending loss.
Co-Authors Aldo Novaznursyah Costrada Harmadi Harmadi Kemal, Badrul Mustafa