The paper brings the methodology for identification and analysis of chosen dynamic characteristics of the bridge structure deformation using fiber optic acceleration sensors. OmniTrax is a volumetric sensor that uses a pair of buried cables to generate an invisible above-ground electromagnetic detection field. When an intruder enters the field, an alarm is generated. Intrusions are located to within 1 m (3 ft). With their help we are able to measure temperature, strain, level, flow, vibration, stress, etc. For its operation the Michelson interferometer consist of the two arms terminated by. RaySense DAS is a security system that offers fiber optic monitoring capabilities.
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