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ABSTRACT
Asensing system utilizing a standard optical fiber as a sensor for the detection and localization of mechanical vibrations is presented. The location of the field work is Oluku Bypass Bridge in Benin City. In this project, using automobile as sources of vibration, real-time optical fiber cable is subjected to vibrations and monitored with optical time domain reflectometer (OTDR). The OTDR is an electronics device which has the ability to measure and as well show the measurement. The effect of the vibrations along the sensing fiber as recorded by the OTDR is analyzed and demonstrated practically. It is demonstrated with the readout from the OTDR as shown in chapter 3 and 4 that the intensity measured by total reflection in the fiber optic reduced due to the loss caused by the vibration of the fiber optic. The resulting signals loss is processed using Microsoft excel environment.
