Fiber Optic Sensors In Structural Health Monitoring

The use of an online monitoring system based on brillouin optical time.

Fiber optic sensors in structural health monitoring.

An introduction for engineers and scientists. Fibre optic methods for structural health monitoring john wiley sons inc. Structural health monitoring shm based on advanced sensor technology is potentially a cost effective approach to meet operational requirements and to reduce maintenance costs. Fiber optic sensors in structural health monitoring abstract.

Fiber optic sensor technology is being developed to provide existing and future aircrafts with shm capability due to its unique superior characteristics. This special issue will focus on the current state of the art of optical sensors for structural health monitoring shm covering recent technological improvements in new devices sensors and emerging applications. Both original research papers and review articles describing the current state of the art in this research field are welcome. Fiber optic sensing allows for highly accurate robust and continuous structural health monitoring predicting and preventing equipment failure and structural damage to infrastructure.

The first fiber optic sensor a closed loop fiber gyro was invented to replace mechanical spinning gyros on the delta rocket in 1978. Development of fiber optic methods for shm based on short gauge longgauge and distributed sensors can be found in the following books. The following provides a brief review to the most widely used shm sensors for structural monitoring. Conception of such foss originated from fiber optic communications.

The latest advances in research on sensor technology for structural health monitoring has been resulted in various types of shm sensors. Structural health monitoring shm can be understood as the integration of sensing and intelligence to enable the structure loading and damage provoking conditions to be recorded analyzed localized and predicted in such a way that nondestructive testing becomes an integral part of. This paper presents an overview of hybrid fiber optic sensing systems based on scattering techniques fiber bragg gratings interferometric techniques and polarimetric methods in structural health monitoring. Wiley new york ny usa.

Unaffected by electro magnetic fields and resistant to extreme temperatures and stress fiber optic sensors can be used even in the most harsh environments.