The possible use of Fiber Bragg Grating based accelerometers for seismic measurements

Over the last two decades, extensive studies and research have opened a new era for Fiber Bragg Grating (FBG) based sensing technologies. One of the new applications is the FBG based accelerometers. In various field applications, FBG based accelerometers are replacing conventional electronic sensors, due to their long term stability, high accuracy and low power consumption. In this paper, theoretical analysis on FBG is introduced followed by the sensing principles. In-depth studies are made on three existing FBG based accelerometers for their unique transducer designs and signal interrogation techniques, and most importantly their possible use for seismic measurements.